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Amazing American Airlines ONT to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $160 round trip and $83 one way. Prices and availability subject to change. Additional terms may apply.

SEA From ONT Economy Coach Packages on Similar Airlines


FAQs about American Airlines Flights from ONT to SEA

What terminal is American Airlines at Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.)?

Before you fly from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) with American Airlines, it's probably a good idea to get in touch with the airline for your terminal information. While your boarding pass should contain some of the details, we can't guarantee it.

Are there American Airlines non-stop flights from ONT to SEA?

You won't find any direct flights with American Airlines from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.). You will have at least one stopover, so use this time to go for a stroll and stretch out those legs before catching your next flight.

How long is an American Airlines flight from ONT to SEA?

Throw that book in your carry-on you've been eager to read. A flight from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) with American Airlines will take on average 7 hours and 29 minutes. You'll have more than enough time to completely lose yourself in the absorbing storyline.

How many direct and indirect flights does American Airlines fly from ONT to SEA?

You'll have lots of flexibility if you want to fly with American Airlines between ONT and SEA. Currently, it has at least 5 flights per day on this route.

Flying Tips & Tricks How do I find my flight number?
  • When you've completed your booking, have a look in your inbox for your travel itinerary. Your flight number is written in this document. You shouldn't have too many difficulties spotting it — just keep your eye out for a code made up of numbers and letters. The first one to two letters and single digit are called an IATA airline code and represent the airline you're traveling with. Following this are one, two, three or four numbers which make up your flight number.
How early can you check bags for a flight?
  • Airlines can have varying requirements when it comes to physical check-in and luggage drop times. However, as a general rule, you should arrive at the terminal approximately three hours before takeoff for international flights. If you're flying domestically, the recommended time is two hours prior to takeoff. Our top tip? Don't be too late. International flights typically close bag drop an hour before departure. With domestic flights, it's 45 minutes before.

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.