Cheap Flights from Newark Liberty Intl. Airport (EWR) to Seattle (SEA)

View AU$153 flight on Mon, 22 Sep. 2025Opens in a new window

Popular airlines from Newark Liberty Intl. Airport (EWR) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Newark Liberty Intl. Airport (EWR) to Seattle (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, 16 Sep. - Tue, 23 Sep.
EWR
New York
SEA
Seattle
AU$306 Return, found 3 days ago
AU$306
Return
found 3 days ago
Select Alaska Airlines flight, departing Tue, 16 Sep. from New York to Seattle, returning Tue, 23 Sep., priced at AU$306 found 3 days ago
Delta
Tue, 16 Sep. - Tue, 23 Sep.
EWR
New York
SEA
Seattle
AU$352 Return, found 3 days ago
AU$352
Return
found 3 days ago
Select Delta flight, departing Tue, 16 Sep. from New York to Seattle, returning Tue, 23 Sep., priced at AU$352 found 3 days ago
Delta
Tue, 16 Sep. - Tue, 23 Sep.
EWR
New York
SEA
Seattle
AU$376 Return, found 3 days ago
AU$376
Return
found 3 days ago
Select Delta flight, departing Tue, 16 Sep. from New York to Seattle, returning Tue, 23 Sep., priced at AU$376 found 3 days ago
Alaska Airlines
Tue, 16 Sep. - Tue, 23 Sep.
EWR
New York
SEA
Seattle
AU$385 Return, found 3 days ago
AU$385
Return
found 3 days ago
Select Alaska Airlines flight, departing Tue, 16 Sep. from New York to Seattle, returning Tue, 23 Sep., priced at AU$385 found 3 days ago
Delta
Tue, 16 Sep. - Tue, 23 Sep.
EWR
New York
SEA
Seattle
AU$399 Return, found 3 days ago
AU$399
Return
found 3 days ago
Select Delta flight, departing Tue, 16 Sep. from New York to Seattle, returning Tue, 23 Sep., priced at AU$399 found 3 days ago
Alaska Airlines
Mon, 1 Sep. - Tue, 9 Sep.
EWR
New York
SEA
Seattle
AU$409 Return, found 5 days ago
AU$409
Return
found 5 days ago
Select Alaska Airlines flight, departing Mon, 1 Sep. from New York to Seattle, returning Tue, 9 Sep., priced at AU$409 found 5 days ago
Alaska Airlines
Fri, 5 Sep. - Sat, 13 Sep.
EWR
New York
SEA
Seattle
AU$411 Return, found 5 days ago
AU$411
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 5 Sep. from New York to Seattle, returning Sat, 13 Sep., priced at AU$411 found 5 days ago
United
Mon, 1 Sep. - Tue, 9 Sep.
EWR
New York
SEA
Seattle
AU$428 Return, found 5 days ago
AU$428
Return
found 5 days ago
Select United flight, departing Mon, 1 Sep. from New York to Seattle, returning Tue, 9 Sep., priced at AU$428 found 5 days ago
American Airlines
Fri, 12 Sep. - Fri, 19 Sep.
EWR
New York
SEA
Seattle
AU$484 Return, found 6 days ago
AU$484
Return
found 6 days ago
Select American Airlines flight, departing Fri, 12 Sep. from New York to Seattle, returning Fri, 19 Sep., priced at AU$484 found 6 days ago
Sun Country Airlines
Wed, 6 Aug. - Mon, 11 Aug.
EWR
New York
SEA
Seattle
AU$961 Return, found 4 days ago
AU$961
Return
found 4 days ago
Select Sun Country Airlines flight, departing Wed, 6 Aug. from New York to Seattle, returning Mon, 11 Aug., priced at AU$961 found 4 days ago

Find the cheapest month to fly from New York (EWR) to Seattle (SEA)

September is typically the cheapest month to fly

From AU$211 - AU$379 per traveller.

Graph displaying average flight prices per month

Flight from Newark Liberty Intl. Airport to Seattle route information
Origin airport
Newark Liberty Intl. Airport
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$306
Distance
3831 km
Average flight time
3 hours 11 mins

Your quick guide to flights from Newark Liberty Intl. Airport to Seattle

Pick up great flights from Newark Liberty Intl. Airport to Seattle

With Expedia, you have your pick of 19 flights a day with 20 airlines covering flights from Newark Liberty Intl. Airport 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 Newark Liberty Intl. Airport to Seattle that take around 6 hours.

Find cheap flights from Newark Liberty Intl. Airport to Seattle

From the great flight deals with prices currently ranging from AU$306 to AU$961, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Newark Liberty Intl. Airport 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 September.

Reasons to book your flight from Newark Liberty Intl. Airport 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 Newark Liberty Intl. Airport 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.

Frequently asked questions

How much is a flight from EWR to Sea-Tac Airport?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip flights between Liberty Intl. Airport (EWR) and SEA start from AU$306. Book today to score the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Liberty Intl. Airport (EWR) to Sea-Tac Airport?
When it comes to cancellation fees, each airline has a different set of terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from Liberty Intl. Airport (EWR) to Sea-Tac Airport 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 EWR to SEA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Newark Airport to SEA?
The flight distance from Newark Airport to Sea-Tac Airport is 3 900 kilometres. Bring along a drink, a snack and something to read. Keep yourself busy in the air and the hours will zip by.
Which airlines fly direct from EWR to Sea-Tac Airport?
Many adventurers like to fly with Alaska Airlines (AS) from Liberty Intl. Airport (EWR) to SEA. This top airline offers 91 flights every month, so you can pick a flight time that's right for you. Operating 91 flights per month along this route, United Airlines (UA) is another good option.
Are Newark Airport to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up a fantastic last-minute deal from Liberty Intl. Airport (EWR) to SEA, but it can also be hit-or-miss. As many airlines publish prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to book when you see a bargain. Expedia compares carrier prices and updates flight deals regularly, so you can rest assured you're always seeing the latest offers.

Explore a world of travel with Expedia

Newark Liberty Intl. Airport Airports

New York

John F. Kennedy Intl. to Seattle
AU$306.70

White Plains

*Available to Expedia members.