Cheap Flights from Ontario (ONT) to Seattle (SEA) from AU$134

Pick up great flights from Ontario to Seattle

With Expedia, you have your pick of 23 flights a day with 20 airlines covering flights from Ontario to Seattle. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Ontario to Seattle that take around 2 hours.

Find cheap flights from Ontario to Seattle

From the great flight deals with prices currently ranging from AU$88 to AU$189, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Ontario to Seattle around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Seattle is normally in August.

Reasons to book your flight from Ontario to Seattle with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Ontario to Seattle across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Seattle right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.