Cheap Flights from Seattle (SEA) to Ontario (ONO)

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Frequently asked questions

Is it cheaper to buy a plane ticket from Sea-Tac Airport to ONO last minute?
Booking your journey from Sea-Tac Airport to ONO at the last minute could save you a tidy sum if you're lucky enough to find a real steal. However, airfares don't usually get cheaper as the date of departure nears. If you wait, flights could also be booked solid or the best seats long gone. If you'd rather not take any chances, book well ahead of the date you want to leave. In fact, Expedia has some of the biggest deals up to 12 months in advance. If your favorite airline hasn't released its fares yet, check back regularly as offers are constantly updated on Expedia.
What airports do you fly into for Ontario from Seattle?
You can zip from Seattle to Ontario via Ontario, OR (ONO-Ontario Municipal) and Boise Airport (BOI). Come in to land at Ontario, OR (ONO-Ontario Municipal) and you'll be roughly 11 kilometers north of Ontario. Check in to your new digs and then discover some of this city's favorite sights, such as Scotch Pines Golf Course and Four Rivers Cultural Center.
Can I change the date of my flight from Sea-Tac Airport to ONO?
Plans don't always work out, so Expedia is here to help make things easy. To start, access your SEA to ONO itinerary through the Expedia Trips portal and look up the ticket conditions and rules to see if you can make changes. If you purchased your ticket in the last 24 hours, some carriers allow you to cancel at no cost and book new flights. If you bought your fare more than 24 hours ago, get in touch with us via our Customer Service portal so we can assist you further.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Ontario Municipal
Distance
548 km