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Journey information
Overview: Seattle, WA to Ontario, CA flight
USAUSA
Flights from Seattle, WA to Ontario, CA depart on average 63 times per day, taking around 2h 59m. Cheap flight tickets for this journey start at $134 (€109) but you can travel from only $111 (€90) by bus.
There are 9 flights per day. The earliest flight runs at 00:05, the last at 23:55. The fastest flight covers the 966 miles (1556 km) distance in 13h 20m. 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 $111 (€90)
Distance 966 miles (1556 km) |
Average flight duration 2h 59m |
Cheapest ticket price $134 (€109) |
Flights per day 63 |
Direct flights 9 |
Fastest flight 13h 20m |
Cheapest month to travel November |
First flight 00:05 |
Last flight 23:55 |
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 $111 (€90)
Travel Information
Compare flight for Seattle, WA to Ontario, CA
Omio recommends booking the flight as it is the most popular option from Seattle, WA to Ontario, CA among Omio's users. If you are prioritising price take the bus with prices starting from €90. For those with little time consider booking a flight which can get you there in 2h 59m. The ticket price range depends on the travel mode: a bus costs an average of €90, and a train costs an average of €128.
Distance: 966 miles (1556 km)
Compare flight with
Most popular Flight | Train | Bus |
|---|---|---|
€109 Average price | €128 Average price | €90 Average price Cheapest |
5h 59m Average total duration Fastest 2h 59m Onboard + 3h 0m Additional time* | 29h 37m Average total duration 29h 7m Onboard + 30m Additional time* | 35h 0m Average total duration 34h 30m Onboard + 30m Additional time* |
Direct Options | Direct Options | Direct Options |
Airlines: Alaska Airlines, United from Seattle, WA to Ontario, CAFind the best flights between Seattle, WA to Ontario, CA with Omio's travel partners Alaska Airlines, United from $111 (€90). We can find you the best deals, schedules and tickets when comparing and booking the best trip.
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
Alaska Airlines frequency
44 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)
Entertaiment on board
United
About
United Airlines is one of the USA’s leading carriers, operating both domestic and international routes. For your next trip, you can choose from Economy, Premium Economy, and Business Class fares.
Luggage & cancellation policy
Average Duration
7h 7m
Cheapest Price
$205 (€167)
United frequency
16 a day
Luggage included
One carry-on bag (9 x 14 x 22 inches) and one personal item (9 x 10 x 17 inches)
Additional luggage
Checked baggage fees vary by route and fare class. Most economy tickets allow purchase of up to 2 checked bags
Cancellation Policy
Basic Economy tickets are non-refundable, other fares allow changes/cancellations with fee depending on fare type and elite status
Pregnant on board
Passengers can fly through the end of their 36th week for single pregnancies, 32nd week for multiple pregnancies. Medical certificate required within 4 weeks of flight
Unaccompagned minor
Children ages 5-14 can travel as unaccompanied minors with mandatory service. Ages 15-17 optional service available
Amenities on board the airplane
Wifi
USB plugs
Accessibility
United provides assistance for passengers with disabilities, including wheelchair assistance and support for passengers with visual or hearing impairments
Pets
Small dogs and cats in cabin, service animals allowed. Pets must be in approved carriers and booked in advance
Entertaiment on board
FAQs: Seattle, WA to Ontario, CA Flight
Find answers to the most common questions about traveling from Seattle, WA to Ontario, 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 Ontario, CA, this guide helps you travel smarter and with confidence.
The earliest flight from Seattle, WA to Ontario, CA leaves at 12: 26AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Seattle, WA to Ontario, CA leaves at 11: 57PM.
There are 59 flights a day from Seattle, WA to Ontario, CA which require at least one change with United. Schedules can vary on holidays or weekends with fewer flights.
Take the Seattle, WA to Ontario, CA flight with United. However, it's always good to check out all possible airlines for the route from Seattle, WA to Ontario, CA as there might be differences in the amenities they offer.
The cheapest month for a flight from Seattle, WA to Ontario, CA is November.
It's helpful to compare your options as there are 2 ways to travel to Ontario, CA from Seattle, WA including taking a train or bus.
Since neither Seattle, WA nor Ontario, CA are in the Schengen Area, passport requirements depend on the specific immigration rules of USA and USA. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
The best events to attend in Ontario, CA include:
- California Citrus State Historic Park Festival, celebrate the citrus industry with local vendors and activities
- Ontario International Airport Airshow, witness thrilling aerial performances and displays
- Ontario Harvest Festival, a community celebration featuring local produce and crafts
- Chaffey Community Museum of Art Annual Fundraiser, support local art through exhibitions and auctions.
The best holidays to experience in Ontario, CA include:
- New Year's Day, mild winter weather and fresh beginnings
- Memorial Day, kick-off to summer with outdoor activities
- Independence Day, patriotic celebrations and fireworks
- Labor Day, end of summer festivities and community events
- Thanksgiving, a time for family gatherings and seasonal harvest celebrations.
The best seasons to visit Ontario, CA are Spring or Fall. The best weather to explore Ontario, CA is during April-June or September-November.
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.
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.
popular airports
Popular airports from Seattle, WA to Ontario, CA
Seattle
Ontario
The major airport for departures in Seattle is Seattle-Tacoma International Airport. Find all the information you need to know about services, amenities and connections at Seattle-Tacoma International Airport for your trip from Seattle to Ontario.
Amenities at airport
Wifi
Shopping
Parking
Dining
ATM
Taxis
Accessibility
WC
Hotel
Shower
Lounge
Lost and Found Office
Car Rentalinformation
Car connection
I-5, Exit 154BWifi
- Free Wi-Fi available throughout the airport.
Shopping
- Shops include duty-free, Hudson News, and local specialty stores, located in the main terminal and concourses.
Parking
- Parking available in the General Parking area, approximately 4.7€ ($5) per hour.
Dining
- Restaurants are available, including fast food and sit-down options like McDold's and Beecher's Handmade Cheese.
Taxis
- Available outside the terminal.
Accessibility
- Elevators, ramps
WC
- Available throughout the airport, near gates and in main terminal areas.
Hotel
- Hotels within walking distance, such as the Seattle Airport Marriott and Hilton Seattle Airport.
Shower
- Showers are available at The Club at SEA lounges, typically included in lounge access fees.
Lounge
- Lounges include The Club at SEA and Delta Sky Club, offering amenities like scks and showers.
Lost and Found Office
- Lost and Found located on the baggage claim level, near carousel 13.
Car Rental
- Car rental services are available at the Rental Car Facility, accessible via a free shuttle from the terminal.
Public transit options for Seattle-Tacoma International Airport
- Link Light Rail, SeaTac/Airport Station, 40 minutes
The major airport for arrivals in Ontario is Ontario International Airport. Find all the information you need to know about services, amenities and connections at Ontario International Airport for your journey to Ontario from Seattle.
Amenities at airport
WifiShoppingParkingDiningATMTaxisAccessibilityWCHotelShowerLoungeLost and Found OfficeCar Rentalinformation
Distance to city center
4 kmCar connection
I-10, Exit 55Wifi
- Free Wi-Fi available throughout the airport.
Shopping
- Shops in terminals, including duty-free and local brands.
Parking
- Parking available near the terminal, approximately 0.30€ (IDR 5,000) per hour.
Dining
- Various options in terminals, including fast food and sit-down restaurants
Taxis
- Available outside the terminal.
Accessibility
- Elevators, ramps
WC
- Available throughout the airport.
Hotel
- Hotels nearby, such as Ontario Airport Hotel & Conference Center.
Shower
- Available in terminal 4, approx. $15 per use.
Lounge
- Several lounges available, including Aspire Lounge.
Lost and Found Office
- Available throughout the airport.
Car Rental
- Car rental services available on-site, including major brands
Public transit options for Ontario International Airport
- Bus line 61, Ontario Airport at terminal Way 2, 38 miles
More options for your journey from Seattle, WA to Ontario, CA
Here are some other resources that might have the information you need
Most popular flights to and from Ontario, CA and Seattle, WA
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