Ontario, CA ONT to San Diego, CA SAN Flights

Thu, Aug 27
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Journey information

Overview: Ontario, CA to San Diego, CA flight

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Flights from Ontario, CA to San Diego, CA depart on average 37 times per day, taking around 7h 38m. Cheap flight tickets for this journey start at $236 (€190) but you can travel from only $26 (€21) by bus.

There are 2 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 1h 8m. 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 $26 (€21)
Distance
97 miles (157 km)
Average flight duration
7h 38m
Cheapest ticket price
$236 (€190)
Flights per day
37
Direct flights
2
Fastest flight
1h 8m
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 $26 (€21)

The cheapest and fastest flights from Ontario, CA to San Diego, CA

Showing times and prices for Aug 28

Cheapest price

$322

Average price

$409

Fastest journey

58 m

Average duration

5 h 26 m

Flights per day

4

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 $409 if you buy it on the day, but the cheapest tickets can be found for only $322.

Fast flights

Of the 4 flights that leave Ontario, CA for San Diego, CA onFri, Aug 28, 4 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

On Fri, Aug 28 the direct flights cover the 157 km distance in an average of 5 h 26 m but if you time it right, some flights will get you there in just 58 m .

On Fri, Aug 28 the longest flights will take 12 h 22 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.

  • United
    2:50 AM0h58
    Ontario, CA
    3:48 AMSan Diego, CA
    $3221One-way
    0 transfers
  • American Airlines
    4:17 PM12h22
    Ontario, CA
    4:39 AMSan Diego, CA
    $3921One-way
    0 transfers
  • United
    5:17 PM1h07
    Ontario, CA
    6:24 PMSan Diego, CA
    $4521One-way
    0 transfers
  • United
    8:30 PM7h18
    Ontario, CA
    3:48 AMSan Diego, CA
    $4701One-way
    0 transfers

Travel Information

Compare bus and flight for Ontario, CA to San Diego, CA

Omio recommends booking the bus as it is the most popular option from Ontario, CA to San Diego, CA among Omio's users. If you are prioritising price take the bus with prices starting from $26. For those with little time consider booking a bus which can get you there in 3h 57m. The ticket price range depends on the travel mode: a bus costs an average of $26, and a flight costs an average of $236.

Distance: 97 miles (157 km)

Compare flight with

Flight
Most popular
Bus
Driving

$325

Average price

$54

Average price

Cheapest

$24

Average price

(fuel + tolls)

10h 38m

Average total duration

7h 38m

Onboard

+

3h 0m

Additional time*

4h 27m

Average total duration

Fastest

3h 57m

Onboard

+

30m

Additional time*

1h 49m

Average total duration

(door-to-door)

Direct Options

Direct Options

Direct Options

The cheapest way to travel from Ontario, CA to San Diego, CA is a bus with an average price of $54 (€44).

This is compared to other travel options from Ontario, CA to San Diego, CA:

A bus is $271 (€218) less than a flight for this route with tickets for a flight from Ontario, CA to San Diego, CA costing on average $325 (€262).

The fastest way to travel from Ontario, CA to San Diego, CA is by bus with an average journey time of 3h 57m.

Other travel options to San Diego, CA take longer:

Flight takes on average 7h 38m.

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.
We recommend using the bus as it is the most popular way to get from Ontario, CA to San Diego, CA among Omio's users.

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, Wednesday, August 26. You can also manually refresh the results below to see updated flight journeys.

Last updated at
ProviderDepartsDurationArrivesTransfers
Tickets
UnitedUA2446 · UA55075:00 AM Ontario International Airport
8h00
1:00 PM McClellan–Palomar Airport1 transfer
UnitedUA781 · UA55106:00 AM Los Angeles International Airport
6h04
12:04 PM McClellan–Palomar Airport1 transfer
UnitedUA2363 · UA4446:08 AM Ontario International Airport
4h10
10:18 AM San Diego International Airport1 transfer
UnitedUA2363 · UA55106:08 AM Ontario International Airport
5h56
12:04 PM McClellan–Palomar Airport1 transfer
American AirlinesAA3053 · AA19516:30 AM Los Angeles International Airport
8h56
3:26 PM San Diego International Airport1 transfer
American AirlinesAA3053 · AA4806:30 AM Los Angeles International Airport
11h48
6:18 PM San Diego International Airport1 transfer
American AirlinesAA3053 · AA21226:30 AM Los Angeles International Airport
5h27
11:57 AM San Diego International Airport1 transfer
UnitedUA318 · UA55076:45 AM John Wayne Airport
6h15
1:00 PM McClellan–Palomar Airport1 transfer
UnitedUA2380 · UA55107:05 AM John Wayne Airport
4h59
12:04 PM McClellan–Palomar Airport1 transfer
UnitedUA1372 · UA55107:45 AM Los Angeles International Airport
4h19
12:04 PM McClellan–Palomar Airport1 transfer
UnitedUA1899 · UA12819:00 AM Burbank
8h00
5:00 PM San Diego International Airport1 transfer
UnitedUA1899 · UA13029:00 AM Burbank
5h50
2:50 PM San Diego International Airport1 transfer
American AirlinesAA2109 · AA480+skywest airlinesAA64259:31 AM Los Angeles International Airport
8h47
6:18 PM San Diego International Airport2 transfers
UnitedUA5537 · UA5323 · UA55089:37 AM Los Angeles International Airport
11h08
8:45 PM McClellan–Palomar Airport2 transfers
American AirlinesAA480+skywest airlinesAA6296 · AA63699:38 AM Los Angeles International Airport
8h40
6:18 PM San Diego International Airport2 transfers
American AirlinesAA1951+skywest airlinesAA6369 · AA62969:38 AM Los Angeles International Airport
5h48
3:26 PM San Diego International Airport2 transfers
American AirlinesAA480+skywest airlinesAA6294 · AA62969:38 AM Los Angeles International Airport
8h40
6:18 PM San Diego International Airport2 transfers
American AirlinesAA480+envoy airAA3649+skywest airlinesAA62969:38 AM Los Angeles International Airport
8h40
6:18 PM San Diego International Airport2 transfers
UnitedUA5616 · UA12579:42 AM John Wayne Airport
4h02
1:44 PM San Diego International Airport1 transfer
UnitedUA520 · UA12579:50 AM Burbank
3h54
1:44 PM San Diego International Airport1 transfer
American AirlinesAA1595 · AA4809:57 AM Los Angeles International Airport
8h21
6:18 PM San Diego International Airport1 transfer
American AirlinesAA1595 · AA19519:57 AM Los Angeles International Airport
5h29
3:26 PM San Diego International Airport1 transfer
UnitedUA5299 · UA4648 · UA550810:20 AM Los Angeles International Airport
10h25
8:45 PM McClellan–Palomar Airport2 transfers
UnitedUA106810:35 AM Los Angeles International Airport
1h00
11:35 AM San Diego International Airport0 transfersDirect
UnitedUA1809 · UA1799 · UA156111:05 AM Los Angeles International Airport
7h30
6:35 PM San Diego International Airport2 transfers
UnitedUA2741 · UA2047 · UA157712:40 PM Los Angeles International Airport
8h05
8:45 PM San Diego International Airport2 transfers
UnitedUA2187 · UA54012:44 PM Burbank
7h50
8:34 PM San Diego International Airport1 transfer
UnitedUA2187 · UA552912:44 PM Burbank
8h08
8:52 PM McClellan–Palomar Airport1 transfer
UnitedUA5893 · UA5256 · UA44212:47 PM Los Angeles International Airport
10h00
10:47 PM San Diego International Airport2 transfers
UnitedUA5893 · UA5256 · UA157712:47 PM Los Angeles International Airport
7h58
8:45 PM San Diego International Airport2 transfers
UnitedUA5893 · UA5256 · UA550812:47 PM Los Angeles International Airport
7h58
8:45 PM McClellan–Palomar Airport2 transfers
American AirlinesAA1994 · AA4801:07 PM Los Angeles International Airport
5h11
6:18 PM San Diego International Airport1 transfer
UnitedUA1534 · UA55291:08 PM John Wayne Airport
7h44
8:52 PM McClellan–Palomar Airport1 transfer
UnitedUA1263 · UA55291:18 PM Ontario International Airport
7h34
8:52 PM McClellan–Palomar Airport1 transfer
UnitedUA1453 · UA55081:50 PM Burbank
6h55
8:45 PM McClellan–Palomar Airport1 transfer
UnitedUA1375 · UA55081:56 PM Ontario International Airport
6h49
8:45 PM McClellan–Palomar Airport1 transfer
UnitedUA2304 · UA55082:55 PM John Wayne Airport
5h50
8:45 PM McClellan–Palomar Airport1 transfer
UnitedUA2019 · UA55084:10 PM Los Angeles International Airport
4h35
8:45 PM McClellan–Palomar Airport1 transfer
UnitedUA5351 · UA55084:11 PM John Wayne Airport
4h34
8:45 PM McClellan–Palomar Airport1 transfer
UnitedUA1066 · UA15774:15 PM Burbank
4h30
8:45 PM San Diego International Airport1 transfer
UnitedUA1066 · UA55084:15 PM Burbank
4h30
8:45 PM McClellan–Palomar Airport1 transfer
UnitedUA5824:30 PM Los Angeles International Airport
0h56
5:26 PM San Diego International Airport0 transfersDirect
UnitedUA1508 · UA4426:35 PM Burbank
4h12
10:47 PM San Diego International Airport1 transfer
UnitedUA2681 · UA4426:45 PM Los Angeles International Airport
4h02
10:47 PM San Diego International Airport1 transfer
UnitedUA11006:59 PM Los Angeles International Airport
0h56
7:55 PM San Diego International Airport0 transfersDirect
American AirlinesAA1362 · AA17937:36 PM Los Angeles International Airport
13h14
8:50 AM San Diego International Airport1 transfer
American AirlinesAA2785 · AA1808 · AA21227:48 PM Los Angeles International Airport
16h09
11:57 AM San Diego International Airport2 transfers
American AirlinesAA2785 · AA1808 · AA19517:48 PM Los Angeles International Airport
19h38
3:26 PM San Diego International Airport2 transfers
Thursday, August 27
United2:50 AM Ontario, CA
0h58
3:48 AM San Diego, CA0 transfersDirect
Wednesday, August 26
American AirlinesAA2122+skywest airlinesAA4888 · AA63158:10 PM Los Angeles International Airport
15h47
11:57 AM San Diego International Airport2 transfers
American AirlinesAA1951+skywest airlinesAA6315+envoy airAA36508:10 PM Los Angeles International Airport
19h16
3:26 PM San Diego International Airport2 transfers
American AirlinesAA2122+envoy airAA3650+skywest airlinesAA63158:10 PM Los Angeles International Airport
15h47
11:57 AM San Diego International Airport2 transfers

This is the last flight of the day.

Find all the dates and times for this journey

Compare prices and tickets Ontario, CA to San Diego, CA by bus or flight

Compare bus and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

Thu
Aug 27
Fri
Aug 28
Sat
Aug 29
Sun
Aug 30
Mon
Aug 31
Tue
Sep 01
Wed
Sep 02

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

San Diego Museum of Art

Major Balboa Park museum with works from Spanish old masters to modern art, plus strong regional and international exhibitions.

  • 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.

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.

FAQs
Cheap plane tickets from Ontario, CA to San Diego, CA can start from as little as $236 (€190) when you book in advance. The average flight ticket price for Ontario, CA to San Diego, CA is $325 (€262) ; 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 1h 8m 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.
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.
The cheapest month for a flight from Ontario, CA to San Diego, CA is November.
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.
Since neither Ontario, CA nor San Diego, CA are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is no time difference between Ontario, CA and San Diego, CA.
Some of the most interesting sights to explore in San Diego, CA are:
  • Balboa Park, a sprawling urban park with museums, gardens, and the San Diego Zoo
  • USS Midway Museum, a historic naval aircraft carrier museum offering interactive exhibits and tours
  • La Jolla Cove, a picturesque coastal area known for its stunning views and marine life
  • Gaslamp Quarter, a lively historic district with Victorian architecture, dining, and entertainment options
  • Coronado Beach, a beautiful sandy beach known for its gentle waves and iconic hotel.
The best events to attend in San Diego, CA include:
  • Comic-Con International, the largest comic book and popular arts convention in the world
  • San Diego County Fair, a month-long fair featuring rides, games, and local food
  • San Diego Beer Week, a celebration of craft beer with tastings and events across the county
  • La Jolla Music Festival, an annual event showcasing classical music performances in a picturesque coastal setting.
The best holidays to experience in San Diego, CA include:
  • Memorial Day, ideal weather for beach activities and outdoor events
  • Independence Day, spectacular fireworks and patriotic celebrations
  • Labor Day, perfect for enjoying the last days of summer at the beach
  • Thanksgiving, a time for family gatherings with pleasant fall weather.
The best things to do in San Diego, CA include:
  • Explore the vibrant art scene at the Museum of Contemporary Art San Diego
  • enjoy a harbor cruise for stunning views of the skyline and naval ships
  • hike the scenic trails at Torrey Pines State Natural Reserve
  • visit the Birch Aquarium to learn about marine life and ocean conservation
  • experience the thrill of a whale watching tour off the coast.
The best season to visit San Diego, CA is Spring or Fall. The best weather to explore San Diego, CA is during April-June or September-November.
We recommend using the bus as it is the most popular way to get from Ontario, CA to San Diego, CA among Omio's users.
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 StatesWifiShoppingParkingDiningATMTaxisAccessibilityWCHotelShowerLoungeLost and Found OfficeCar Rental
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..

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

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