£66 Cheap Flights from Newark Liberty Intl. Airport (EWR) to Seattle (SEA)

View £66 flight on Mon, 8 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 and start at £66 for one-way flights and £132 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, 6 Sep - Mon, 15 Sep
EWR
New York
SEA
Seattle
£132 Return, found 5 days ago
£132
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 6 Sep from New York to Seattle, returning Mon, 15 Sep, priced at £132 found 5 days ago
Hawaiian Airlines
Wed, 1 Oct - Tue, 14 Oct
EWR
New York
SEA
Seattle
£132 Return, found 6 days ago
£132
Return
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, 1 Oct from New York to Seattle, returning Tue, 14 Oct, priced at £132 found 6 days ago
Alaska Airlines
Thu, 18 Sep - Tue, 23 Sep
EWR
New York
SEA
Seattle
£138 Return, found 5 days ago
£138
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 18 Sep from New York to Seattle, returning Tue, 23 Sep, priced at £138 found 5 days ago
Hawaiian Airlines
Wed, 1 Oct - Sat, 11 Oct
EWR
New York
SEA
Seattle
£139 Return, found 6 days ago
£139
Return
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, 1 Oct from New York to Seattle, returning Sat, 11 Oct, priced at £139 found 6 days ago
Hawaiian Airlines
Wed, 3 Sep - Wed, 17 Sep
EWR
New York
SEA
Seattle
£147 Return, found 6 days ago
£147
Return
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, 3 Sep from New York to Seattle, returning Wed, 17 Sep, priced at £147 found 6 days ago
Alaska Airlines
Thu, 18 Sep - Mon, 22 Sep
EWR
New York
SEA
Seattle
£151 Return, found 5 days ago
£151
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 18 Sep from New York to Seattle, returning Mon, 22 Sep, priced at £151 found 5 days ago
Alaska Airlines
Thu, 18 Sep - Tue, 23 Sep
EWR
New York
SEA
Seattle
£157 Return, found 5 days ago
£157
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 18 Sep from New York to Seattle, returning Tue, 23 Sep, priced at £157 found 5 days ago
United
Mon, 1 Sep - Mon, 15 Sep
EWR
New York
SEA
Seattle
£206 Return, found 6 days ago
£206
Return
found 6 days ago
Select United flight, departing Mon, 1 Sep from New York to Seattle, returning Mon, 15 Sep, priced at £206 found 6 days ago
American Airlines
Wed, 6 Aug - Wed, 13 Aug
EWR
New York
SEA
Seattle
£429 Return, found 6 days ago
£429
Return
found 6 days ago
Select American Airlines flight, departing Wed, 6 Aug from New York to Seattle, returning Wed, 13 Aug, priced at £429 found 6 days ago
Delta
Sun, 10 Aug - Sun, 17 Aug
EWR
New York
SEA
Seattle
£625 Return, found 2 days ago
£625
Return
found 2 days ago
Select Delta flight, departing Sun, 10 Aug from New York to Seattle, returning Sun, 17 Aug, priced at £625 found 2 days ago

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

September is typically the cheapest month to fly

From £102 - £192 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
Return price
£131
Distance
3831 km
Average flight time
4 hours 24 mins

Compare flights from Newark Liberty Intl. Airport to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Newark Liberty Intl. Airport to Seattle. Operating between them 19 flights per day, 20 airlines cover the route. And American Airlines, JAL, Alaska Airlines, Hawaiian Airlines, Korean Air, Air Tahiti Nui, Asiana Airlines, TAP Air Portugal, United Airlines, Singapore Airlines fly direct, getting you to Seattle - Tacoma Intl. in just 6hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Newark Liberty Intl. Airport to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Newark Liberty Intl. Airport (EWR) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Newark Liberty Intl. Airport to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Newark Liberty Intl. Airport to Seattle - Tacoma Intl. start at just £132 and range up to £625.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Newark Liberty Intl. Airport and Seattle
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Newark Liberty Intl. Airport to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Newark Liberty Intl. Airport to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

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 £132. 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

Seattle Airports

Seattle Paine Field Intl. Airport

Newark Liberty Intl. Airport Airports

New York

John F. Kennedy Intl. to Seattle
£152.00
LaGuardia to Seattle
£235.00
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