- Must visit
San Diego Museum of Art
Major Balboa Park museum with works from Spanish old masters to modern art, plus strong regional and international exhibitions.
2,000+ travel companies
2,000+ travel companies
Scan to get our free app
Use our app to get live travel updates and book mobile tickets for trains, buses, flights, and ferries.
App Store
4.942K ratings
Google Play
4.6136K reviews
The cheapest and fastest flights from Ontario, CA to San Diego, CA
Showing times, prices and bookable tickets for Oct 11
Cheapest price on Oct 11
$334
Average ticket price on Oct 11
$523
Fastest journey on Oct 11
56 m
Average journey duration on Oct 11
2 h 11 m
Flights on Oct 11
68
Distance
157 km
Cheap tickets
The best way to find a cheap flight ticket from Ontario, CA to San Diego, CA is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Ontario, CA to San Diego, CA will cost around $523 if you buy it on the day, but the cheapest tickets can be found for only $334.
Fast flights
On Sun, Oct 11, we found 68 flights from Ontario, CA to San Diego, CA, including 3 direct services.
On Sun, Oct 11 the direct flights cover the 157 km distance in an average of 2 h 11 m but if you time it right, some flights will get you there in just 56 m .
On Sun, Oct 11 the longest flights will take 4 h 1 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
UA5824:30 PM0h56Los Angeles International Airport5:26 PMSan Diego International Airport$3341One-way0 transfers- UA11007:12 PM0h56Los Angeles International Airport8:08 PMSan Diego International Airport$3341One-way0 transfers
- UA106810:35 AM1h00Los Angeles International Airport11:35 AMSan Diego International Airport$3341One-way0 transfers
- UA653 · UA55107:50 AM4h17John Wayne Airport12:07 PMMcClellan–Palomar Airport$3341One-way1 transfer
- UA1375 · UA55081:52 PM7h08Ontario International Airport9:00 PMMcClellan–Palomar Airport$3341One-way1 transfer
- UA5824:30 PM0h56Los Angeles International Airport5:26 PMSan Diego International Airport$3341One-way0 transfers
- UA11007:12 PM0h56Los Angeles International Airport8:08 PMSan Diego International Airport$3341One-way0 transfers
- UA106810:35 AM1h00Los Angeles International Airport11:35 AMSan Diego International Airport$3341One-way0 transfers
- UA1905 · UA12579:44 AM4h00Los Angeles International Airport1:44 PMSan Diego International Airport$5341One-way1 transfer
- UA2837 · UA4426:56 PM4h01Los Angeles International Airport10:57 PMSan Diego International Airport$5431One-way1 transfer
Journey information
Overview: Ontario, CA to San Diego, CA flight
USAUSA
Flights from Ontario, CA to San Diego, CA depart on average 53 times per day, taking around 3h 27m. Cheap flight tickets for this journey start at $138 but you can travel from only $27 by bus.
There are 3 flights per day. The earliest flight runs at 05:00, the last at 23:55. The fastest flight covers the 97 miles (157 km) distance in 54m. November is the cheapest month to fly.
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from $27
Distance 97 miles (157 km) |
Average flight duration 3h 27m |
Cheapest ticket price $138 |
Flights per day 53 |
Direct flights 3 |
Fastest flight 54m |
First flight 5:00 AM |
Last flight 11:55 PM |
Cheapest Month Nov |
Cheapest Day Sat |
High Season Jul - Sep |
Low Season Jan - Mar |
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from $27
Live departures
Ontario, CA to San Diego, CA flight times
The table below shows live departures for Ontario, CA to San Diego, CA flights for today, Saturday, October 10. You can also manually refresh the results below to see updated flight journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| 5:00 PM Ontario, CA | 1h07 | 6:07 PM San Diego, CA | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Why should you book Ontario, CA to San Diego, CA flights with Omio?
American Airlines as well as Alaska Airlines, United, skywest airlines, Sun Country Airlines and more offer flights services from Ontario, CA to San Diego, CA.
Omio is an official ticket reseller for all your travel options from Ontario, CA to San Diego, CA.
Why book with Omio vs American Airlines?
- Compare with other providers: On Omio, you can not only buy tickets for American Airlines, but also compare tickets for the likes of Alaska Airlines, United, skywest airlines or Sun Country Airlines to find the best option for your trip from Ontario, CA to San Diego, CA.
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
- Compare all your options: Omio allows you to compare American Airlines with all available travel options, which are bus and flight to ensure you get the best deal for traveling from Ontario, CA to San Diego, CA.
Why book with Omio over Trip, Edreams or Skyscanner?
- Compare with other providers: On Omio, you can also compare tickets for the likes of Alaska Airlines, United, skywest airlines or Sun Country Airlines to find the best option for your trip from Ontario, CA to San Diego, CA.
- Multiple modes of transport: Omio allows you to compare travel options including bus and flight to find the ideal travel option from Ontario, CA to San Diego, CA.
Airlines: United, American Airlines, skywest airlines, Alaska Airlines, Sun Country Airlines from Ontario, CA to San Diego, CAFind the best flights between Ontario, CA to San Diego, CA with Omio's travel partners United, American Airlines, skywest airlines, Alaska Airlines, Sun Country Airlines from $27. We can find you the best deals, schedules and tickets when comparing and booking the best trip.
United
About
United Airlines, established in 1926, is a major U.S. airline headquartered in Chicago, Illinois. Operating an extensive domestic and international network, United serves more destinations than any other airline, connecting travelers across six continents. The airline's eight hubs include Chicago–O'Hare, Denver, Houston–Intercontinental, Los Angeles, Newark, San Francisco, Washington–Dulles, and Guam. As a founding member of the Star Alliance, United offers a comprehensive range of services, including regional flights through United Express, catering to both leisure and business travelers. The airline is committed to sustainability, investing in sustainable aviation fuel and innovative technologies to reduce its environmental impact.
Luggage & cancellation policy
Average United Duration
54m
Cheapest United Price
$194
United frequency
34 a day
Luggage included
Carry-on baggage allowance is 7kg total (2 pieces max. ) for both Choice and Flex fares on United Airlines and Virgin Australia flights.
Additional luggage
Excess baggage fees apply for additional checked luggage beyond the standard allowance.
Luggage storage
Both airlines provide checked baggage services for storing luggage during flights.
Cancellation Policy
Cancellation fees apply per person, per booking, with specific fees for different fare types.
Refund
Not applicable to flights; however, full refunds are available if flights are canceled by the airline.
Pregnant on board
Pregnant passengers are permitted to travel, with specific guidelines and medical certificates required after a certain gestational period.
Unaccompagned minor
Unaccompanied minors are permitted to travel, with specific age restrictions and services provided.
Amenities on board the airplane
Wifi
Food sold onboard
Meals and snacks are included on international flights operated by United Airlines and Virgin Australia.
Seat reservation
Seat selection may incur additional fees, depending on the fare type and airline.
Toilets
USB plugs
Accessibility
United Airlines and Virgin Australia offer services to and within Australia, providing accessible travel options for passengers with mobility needs.
Bikes
Both airlines permit bicycles onboard, with specific guidelines and fees.
Pets
United Airlines and Virgin Australia allow pets onboard, subject to specific policies and fees.
American Airlines
About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
Average American Airlines Duration
2h 33m
Cheapest American Airlines Price
$138
American Airlines frequency
12 a day
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.
skywest airlines
About
SkyWest Airlines is a major North American regional airline headquartered in St. George, Utah. It operates flights for larger carriers such as Alaska Airlines (as Alaska SkyWest), American Airlines (as American Eagle), Delta Air Lines (as Delta Connection), and United Airlines (as United Express). SkyWest is the largest regional airline in North America by fleet size, passengers carried, and destinations served. The airline connects passengers to over 250 destinations across the United States, Canada, and Mexico, primarily linking smaller airports to major airline hubs. SkyWest's fleet consists of regional jets, including the Bombardier CRJ series and Embraer 175 aircraft.
Luggage & cancellation policy
Average skywest airlines Duration
2h 51m
Cheapest skywest airlines Price
$475
skywest airlines frequency
6 a day
Luggage included
One carry-on bag and one personal item are allowed for free.
Additional luggage
Additional luggage can be purchased, and fees apply for excess, oversized, or overweight baggage.
Cancellation Policy
If canceled within 24 hours of purchase, a full refund is possible, provided the departure is at least 7 days away; after 24 hours, fees range from $100 to $500.
Refund
If SkyWest Airlines cancels a flight, passengers are eligible for a full refund.
Pregnant on board
Being pregnant on board is allowed, but specific policies may depend on the partner airline.
Unaccompagned minor
Children aged 5-14 can travel alone using the unaccompanied minor service, which includes airport escort and supervision.
Amenities on board the airplane
Seat reservation
Toilets
Accessibility
SkyWest Airlines complies with all provisions of the Air Carrier Access Act and accommodates customers with special needs.
Bikes
Bicycles can be checked in but may incur additional fees and must be properly packed.
Pets
Small pets like cats and dogs are allowed in the cabin for a fee, with restrictions on pet and carrier size.
Alaska Airlines
About
Alaska Airlines, headquartered in SeaTac, Washington, is a major U.S. airline and the fifth-largest in North America by scheduled passengers carried as of 2024. Along with its regional partners, Horizon Air and SkyWest Airlines, Alaska Airlines operates a route network primarily connecting cities along the West Coast of the United States, including Alaska and Hawaii, to over 100 destinations in the contiguous U.S., the Bahamas, Belize, Canada, Costa Rica, Guatemala, and Mexico. The airline is a member of the Oneworld alliance, offering passengers access to a broad global network. Alaska Airlines is known for its customer service and loyalty program, Mileage Plan, and offers First Class, Premium Class, and Main Cabin seating options. The airline's primary hub is Seattle-Tacoma International Airport. In 2024, its parent company, Alaska Air Group, acquired Hawaiian Airlines.
Luggage & cancellation policy
Average Alaska Airlines Duration
3h 7m
Cheapest Alaska Airlines Price
$404
Alaska Airlines frequency
7 a day
Luggage included
1 carry-on bag (22 x 14 x 9) and 1 personal item included
Additional luggage
Checked bags fees start at $30 for first bag, $40 for second bag
Cancellation Policy
Saver fares are non-refundable. Main and First Class fares are refundable with fee, depending on fare type and elite status
Pregnant on board
Passengers can fly up to 36 weeks pregnant. After 28 weeks, medical certificate required
Unaccompagned minor
Unaccompanied minor service available for children ages 5-17. Service fee is $50 per direction on nonstop flights
Amenities on board the airplane
Wifi
USB plugs
Accessibility
Alaska Airlines provides wheelchair assistance and special services for passengers with disabilities, including meet-and-assist services and accessible seating
Pets
Pets allowed in cabin and cargo hold. Service animals welcome. Fees apply for pets in cabin ($100)
Sun Country Airlines
Luggage & cancellation policy
Average Sun Country Airlines Duration
7h 19m
Cheapest Sun Country Airlines Price
$460
Sun Country Airlines frequency
1 a day
Luggage included
One personal item (17 x 13 x 9 inches) included
Additional luggage
Checked bags available for purchase, fees vary by route
Cancellation Policy
Refunds available within 24 hours of booking, after that fees apply based on fare type
Pregnant on board
Pregnant passengers can travel up to 36 weeks (32 weeks for multiple pregnancies). Medical certificate required after 28 weeks
Unaccompagned minor
Unaccompanied minor service available for children 5-14 years old, fee applies, must be booked in advance
Amenities on board the airplane
Wifi
USB plugs
Accessibility
Wheelchair assistance available with 48-hour advance notice
Complete guide to San Diego, CA
Things to do in San Diego, CA
Discover the best of San Diego, CA — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect San Diego, CA trip today.
- Must visit
Museum of Contemporary Art San Diego
Acclaimed contemporary art museum in La Jolla featuring oceanfront settings, modern works, and rotating global exhibitions.
- Must visit
USS Midway Museum
Museum aboard a historic aircraft carrier with restored aircraft, naval exhibits, and immersive views of life at sea.
- Must visit
Balboa Park
Balboa Park is San Diego's grand cultural park, packed with gardens, architecture, museums, and walkable plazas worth lingering in.
- Must visit
Gaslamp Quarter
Historic Gaslamp Quarter offers Victorian-era streets, nightlife energy, and preserved downtown architecture for an atmospheric walk.
- Must visit
La Jolla Cove
Dramatic seaside cliffs and walking paths in La Jolla, famous for waves, sea lions, and sweeping Pacific views.
Fish Taco
A San Diego staple: grilled fish in a soft tortilla with cabbage, crema, and salsa. Popularized by Baja influence and coastal seafood culture.
California Burrito
French fries, carne asada, cheese, guacamole, and crema wrapped in a flour tortilla. A late-night local favorite born in San Diego taquerias.
- Gluten-free
Sea Urchin (Uni)
Fresh local sea urchin served raw, prized for its rich, buttery taste. It reflects San Diego's access to Pacific seafood and sushi culture.
Sushi Ota
Celebrated sushi restaurant specializing in omakase and pristine seafood, including uni. Intimate, polished, and highly respected by locals.
Mitch's Seafood
Iconic casual seafood counter known for fish tacos, smoked fish, and harbor views. A classic stop for San Diego's Baja-inspired seafood style.
Juniper and Ivy
Refined fine-dining restaurant showcasing local seafood and seasonal California ingredients. Elegant room with one of the city's strongest reputations.
US Dollar ($)
San Diego is pricey for US travel, with higher hotel rates, dining, and parking than many cities, though casual food and buses stay manageable.
Average meal costs
- Budget
- $10-18 for fast food or casual takeout.
- Mid-range
- $25-45 per person for a mid-range meal.
- Fine dining
- $75+ per person for upscale dining.
- Coffee
- $4-6 for coffee or cappuccino.
Tipping culture
Tip 18-20% at restaurants, 15-20% for taxis or rideshares, and $1-2 for coffee drinks or small cafe orders.
FAQs: Ontario, CA to San Diego, CA Flight
Find answers to the most common questions about traveling from Ontario, CA to San Diego, CA by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at San Diego, CA, this guide helps you travel smarter and with confidence.
Cheap plane tickets from Ontario, CA to San Diego, CA can start from as little as $138 when you book in advance. The average flight ticket price for Ontario, CA to San Diego, CA is $614 ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by plane from Ontario, CA to San Diego, CA is 54m to travel the 97 miles (157 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest flight from Ontario, CA to San Diego, CA leaves at 5:00 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Ontario, CA to San Diego, CA leaves at 11:55 PM.
Yes, there are 3 direct flights a day from Ontario, CA to San Diego, CA with United. Schedules can vary on holidays or weekends with fewer direct flights.
When taking a flight from Ontario, CA to San Diego, CA, you can count on American Airlines, Alaska Airlines, United, skywest airlines, Sun Country Airlines for the best way to get you to San Diego, CA. You can also check all possible airlines who offer a service between Ontario, CA and San Diego, CA and compare the amenities they offer before buying a plane ticket.
Flights from Ontario, CA to San Diego, CA generally leave from Los Angeles International Airport and arrive in San Diego International Airport.Los Angeles International Airport is 1 miles (2 km) away from Ontario, CA city centre and San Diego International Airport is 2 miles (4 km) from San Diego, CA city centre.
It's helpful to compare your options as there are 2 ways to travel between Ontario, CA and San Diego, CA including taking a bus and flight.
For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
The currency used in the United States is the US Dollar (USD). For travelers, using cards is generally more convenient and widely accepted, especially credit and debit cards, while cash is useful for small purchases or places that do not accept cards.
In San Diego, CA, travelers should be cautious of pickpocketing and petty theft, especially in crowded areas like beaches, public transportation, and popular tourist spots such as the Gaslamp Quarter and Old Town. Common scams include overpriced parking fees and unauthorized ticket sellers near attractions. Staying aware of surroundings, securing belongings, and using official transportation services help reduce risks. Additionally, travelers should avoid isolated areas at night and be mindful of local traffic laws when using scooters or bikes.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.
popular airports
Popular airports from Ontario, CA to San Diego, CA
Most Ontario, CA to San Diego, CA flights use the Los Angeles International Airport to San Diego International Airport airport pair, with some services landing at McClellan-Palomar Airport. Use this guide to compare Ontario, CA and San Diego, CA airports on this route, check city-centre transport, alongside checking practicalities like airport facilities and services.
Departure airports in Ontario
Arrival airports in San Diego
Which Ontario, CA airport do flights to San Diego, CA leave from?
Flights from Ontario, CA to San Diego, CA depart from Los Angeles International Airport. The airport is 1 miles (3 km) from Ontario, CA city centre at 1 World Way, Los Angeles, CA 90045, USA.
Ontario International Airport (ONT)Ontario, CA 91761, United States
City-centre transport
Getting to Ontario International Airport from Ontario city centre
Ontario International Airport is 4 km from Ontario city centre. Public transport options include:
Bus61 · 13m · $2 · every ~6 min
61 · 15m · $2 · every ~6 min
Ontario International Airport airport facilities and services
Ontario International Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Shower, Lounge, Lost and Found Office, and Car Rental.
Food and drink
Food options include: Various options in terminals, including fast food and sit-down restaurants
Wi-Fi and ATMs
Free Wi-Fi available throughout the airport. ATMs are located in all terminals.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at Ontario International Airport: Parking, Taxis, WC.
Bike and car services
Available at Ontario International Airport: Car Rental.
Accessibility
Accessibility facilities are available at Ontario International Airport: Elevators, ramps.
Shops, hotels and contact
Nearby hotels include Hotels nearby, such as Ontario Airport Hotel & Conference Center..
Which San Diego, CA airport do flights from Ontario, CA arrive at?
Flights from Ontario, CA to San Diego, CA most often arrive at San Diego International Airport. Some flights land at McClellan-Palomar Airport, so check your ticket before travel to confirm your San Diego, CA arrival airport.
San Diego International Airport (SAN)3225 N Harbor Dr, San Diego, CA 92101, USA
City-centre transport
Getting to San Diego International Airport from San Diego city centre
San Diego International Airport is 4 km from San Diego city centre. Public transport options include:
Bus923, 992 · 12m · $6 · every ~10 min
923, 992 · 13m · $6 · every ~10 min
San Diego International Airport airport facilities and services
San Diego International Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Shower, Lounge, Lost and Found Office, and Car Rental.
Food and drink
Food options include: Restaurants in terminals 1 and 2, including fast food and sit-down options like The Counter and Phil's BBQ
Wi-Fi and ATMs
Free Wi-Fi available throughout the airport. ATMs are located in all terminals.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at San Diego International Airport: Parking, Taxis, WC.
Bike and car services
Available at San Diego International Airport: Car Rental.
Accessibility
Accessibility facilities are available at San Diego International Airport: Elevators, ramps.
Shops, hotels and contact
Nearby hotels include Hotels nearby, Sheraton San Diego Hotel & Mari within walking distance..
McClellan-Palomar Airport (CLD)2198 Palomar Airport Rd, Carlsbad, CA 92008, USA+1 760-431-4646
City-centre transport
Getting to McClellan-Palomar Airport from San Diego city centre
TrainPacific Surfliner · 2h 11m · $20 · every ~2 min
BusAmtrak Thruway Connecting Service · 2h 3m · $20
101 · 3h 3m · $27 · every ~4 min
McClellan-Palomar Airport airport facilities and services
McClellan-Palomar Airport has practical services for this route, including Accessibility.
Accessibility
Accessibility facilities are available at McClellan-Palomar Airport: The place has an entrance that is wheelchair-accessible.
More options for your journey from Ontario, CA to San Diego, CA
Here are some other resources that might have the information you need
Most popular flights to and from San Diego, CA and Ontario, CA
Most popular flights to San Diego, CA
The Omio App Makes Travel Planning Easy
We’ll get you where you want to go. From live train updates to mobile tickets, our innovative app is the ideal way to plan and keep track of your travel.
