Cheap Flights from Seattle (SEA) to Ontario Intl. Airport (ONT) from HK$703~
Popular airlines from Seattle-Tacoma International Airport (SEA) to Ontario Intl. Airport (ONT)
Alaska AirlinesAlaska Airlines
Frontier AirlinesFrontier Airlines
UnitedUnited
DeltaDelta
Southwest AirlinesSouthwest Airlines
American AirlinesAmerican Airlines
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Cheap Flights from Seattle to Ontario (SEA-ONT)
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Flights from Seattle to Ontario
Book cheap flights from Seattle (SEA) to Ontario (ONT) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.
Search for flights from Seattle (SEA) to Ontario (ONT) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.
Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle (SEA) to Ontario (ONT) trip. Call us at 3077-4857 (direct number - 24 hours day for English).
Save more when combine your Ontario flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Ontario and things to do in Ontario for your perfect vacation with Expedia Thing to Do.
If you would like to book flights to Ontario more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Ontario is HK$703 now!
Frequently Asked Questions
How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to ONT?
Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip flights between Sea-Tac Airport and Los Angeles - Ontario Intl. Airport (ONT) start from HK$2,249. Make your booking ASAP to score the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Los Angeles - Ontario Intl. Airport (ONT)?
The majority of flights can be canceled online, but every airline has its own set of terms and conditions. If you do need to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to Los Angeles - Ontario Intl. Airport (ONT) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to Los Angeles - Ontario Intl. Airport (ONT) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to ONT?
The flying distance between Sea-Tac Airport and Los Angeles - Ontario Intl. Airport (ONT) is 1,550 kilometers. Close your eyes or get stuck into a book and the journey will zip on by.
Which airlines fly direct from Sea-Tac Airport to Ontario Airport?
One airline that services the route from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles - Ontario Intl. Airport (ONT) is Alaska Airlines (AS). It offers 117 flights every month. Another carrier servicing this route is Delta Air Lines (DL). You'll have 86 flights each month to select from.
Are SEA to ONT flight tickets cheaper when they're purchased at the last minute?
It is possible to nab a fantastic last-minute deal from SEA to Ontario Airport, but it can also be hit-or-miss. As many airlines release prices up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to book when you see a bargain. Expedia compares carrier prices and updates flight deals often, so you can rest easy knowing you're always getting the latest offers.
Travel information
Origin airport | Seattle-Tacoma International Airport |
|---|---|
Destination airport | Ontario Intl. Airport |
Distance | 1,539 km away |
Airlines serving | Alaska Airlines, Frontier Airlines, United, Delta, Southwest Airlines, American Airlines |
Popular airline | Alaska Airlines |
Return price | HK$2,249 |
Average flight time | 3 hours |