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|Wed and Sat|
Airports in Ontario
The cheapest time of year to fly to Ontario from Seattle is September. Most expensive is April
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
in the afternoon
Seattle to Ontario flights are approximately 34% more expensive at noon than in the afternoon
Alaska Airlines, Delta, and Juneyao Airlines are the most popular carriers operating from Seattle to Ontario
Seattle/Tacoma Intl - Ontario
Fly from Seattle/Tacoma Intl to Ontario for the best Seattle - Ontario flight prices
56 days before
The cheapest time to buy a flight from Seattle to Ontario is approximately 56 days to departure
If you are looking to fly from Seattle to Ontario, you are most likely going to fly from Seattle/Tacoma Intl Airport to Ontario Airport, the most popular airports on that route. If you are looking for an alternate airport near Seattle/Tacoma Intl Airport, Everett Paine Field Airport is a great option and is located in Everett. You may be looking for an airport near Ontario Airport to land at when traveling from Seattle and luckily, there are options! You can try Los Angeles Airport which is located in Los Angeles, Santa Ana J. Wayne/Orange Cnty Airport which is located in Santa Ana, or Burbank Bob Hope Airport which is located in Burbank. The cheapest route from Seattle to Ontario is SEA — SNA with an average price of $160 RT during the month of June.
|Seattle/Tacoma Intl Airport (SEA) to Los Angeles Airport (LAX)||$178|
|Seattle/Tacoma Intl Airport (SEA) to Santa Ana J. Wayne/Orange Cnty Airport (SNA)||$160|
|Seattle/Tacoma Intl Airport (SEA) to Ontario Airport (ONT)||$178|
|Seattle/Tacoma Intl Airport (SEA) to Burbank Bob Hope Airport (BUR)||$198|
|Everett Paine Field Airport (PAE) to Santa Ana J. Wayne/Orange Cnty Airport (SNA)||$238|
|Everett Paine Field Airport (PAE) to Los Angeles Airport (LAX)||$234|
|Juneyao Airlines||PriceFrom $14||Free Cancellation||Rating|
|United Airlines||PriceFrom $71||Free Cancellation||Rating|
Connection time was inadequate causing us to miss our flight. Frankfurt required at least 2 1/2 hours for a connection but you only gave us 80 and 45 minutes. We had to pay to rebook our returning connection in order to make it in time for our return flight home. Costing us $600 for rebooking our connection to Frankfurt plus a Frankfurt hotel.
1 / 10
|Alaska Airlines||PriceFrom $89||Free Cancellation||Rating|
I liked the crew. The seats were a bit tight, I did not like that
1 / 10
|Delta||PriceFrom $91||Free Cancellation||Rating|
It was so cold on the flight, otherwise okay.
1 / 10
Alaska Airlines flies from Seattle to Ontario around 20 times per week, with 663 momondo users rating the airline 7.9/10. The cheapest Alaska Airlines deal from Seattle to Ontario in the last 72 hours was $89 (round-trip), much lower than the average airfare cost of $208 for Alaska Airlines flights on this route.
Delta (7.8/10 from 392 reviews) operates around 20 flights from Seattle to Ontario in any given week. The average Delta airfare for this route is around $272, with deals from around $91 rare but found on momondo. Referenced prices are for round-trip Seattle to Ontario flight searches in the last 72 hours.
Some of our partner airlines flying from Seattle/Tacoma Intl to Ontario are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are Alaska Airlines, Delta, and Juneyao Airlines. You can search for the full list of airlines like Alaska Airlines that are offering this flexibility.
The distance between Seattle/Tacoma Intl and Ontario is about 966.6 mi. A reasonable flight in good conditions will take 2h 30m.
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ontario for you.
Yes. momondo allows you to filter the results for Seattle to Ontario flights to just show those with flexible booking policies.
momondo helps you find the best flight between Seattle and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
Price alerts on flights to Ontario from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.