Cheap Flights from Ontario (ONT) to Seattle (SEA) from HK$937~

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Find Cheap Flights from Ontario (ONT) to Seattle (SEA)

Prices were available within the past 7 days and start at HK$937 for one-way flights and HK$2,208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,208 Return, found 5 days ago
HK$2,208
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,208 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,284 Return, found 5 days ago
HK$2,284
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,284 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,305 Return, found 5 days ago
HK$2,305
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,305 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,381 Return, found 5 days ago
HK$2,381
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,381 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,714 Return, found 5 days ago
HK$2,714
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,714 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,724 Return, found 5 days ago
HK$2,724
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,724 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,790 Return, found 5 days ago
HK$2,790
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,790 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,800 Return, found 5 days ago
HK$2,800
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,800 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,821 Return, found 5 days ago
HK$2,821
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,821 found 5 days ago
Delta
Monday, 24 Jun - Thursday, 4 Jul
ONT
Ontario
SEA
Seattle
HK$2,897 Return, found 5 days ago
HK$2,897
Return
found 5 days ago
Select Delta flight, departing Monday, 24 Jun from Ontario to Seattle, returning Thursday, 4 Jul, priced at HK$2,897 found 5 days ago
Ontario to Seattle route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
HK$2,208
Distance
1530 km
Average flight time
2 hours 46 mins

Flights from Los Angeles to Seattle

Book cheap flights from Los Angeles (ONT) to Seattle (SEA) 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 Los Angeles (ONT) to Seattle (SEA) 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 Los Angeles (ONT) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$937 now!

 

Frequently asked questions

How much is a flight from Ontario Airport to Sea-Tac Airport?
If you’re traveling between Ontario Airport and Seattle - Tacoma Intl. Airport (SEA), round-trip journeys start from HK$2,208. This figure is based on fares quoted within the last 7 days on Expedia for flights departing within the next year, so don’t hang about. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Los Angeles - Ontario Intl. Airport (ONT) to Sea-Tac Airport?
We understand that things come up unexpectedly, so we’ve made it as simple as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Ontario Airport to Seattle - Tacoma Intl. Airport (SEA) 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 Los Angeles - Ontario Intl. Airport (ONT) to Seattle - Tacoma Intl. Airport (SEA) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Los Angeles - Ontario Intl. Airport (ONT) to SEA?
The flight distance from Los Angeles - Ontario Intl. Airport (ONT) to Sea-Tac Airport is 1,550 kilometers. Pack yourself a drink, some snacks and an interesting novel to read. Keep yourself busy in the air and time will zip by.
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Seattle - Tacoma Intl. Airport (SEA)?
Many travelers choose to fly with Alaska Airlines (AS) from Ontario Airport to Seattle - Tacoma Intl. Airport (SEA). This leading airline offers 117 flights monthly, so you can easily find a flight time that works for you. Another carrier operating on this route is Delta Air Lines (DL). You’ll have 86 flights every month to choose from.
Are Ontario Airport to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes pick up a bargain, with some super cheap airfares from ONT to Sea-Tac Airport popping up a few weeks prior to the departure date. If you’d rather book ahead of time, Expedia compares and updates all the best flight deals regularly — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices so far in advance.
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