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Cheap flights from Newark Airport to Seattle from £143

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SEA
12 Sep — 19 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Newark to Seattle/Tacoma Intl are usually found in October or January, booked 28 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Newark to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Newark to Seattle
Explore the most affordable flight options available from Newark to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 August 2026.

Thu 1/1018:44 -
Nonstop6h 11m
Tue 6/1007:00 -
Nonstop5h 22m
Deal found 12/8£249
Sat 19/915:45 -
Nonstop6h 01m
Wed 23/908:40 -
1 stop7h 55m
Deal found 12/8£254
Fri 9/1018:44 -
Nonstop6h 11m
Mon 12/1018:05 -
1 stop8h 38m
Deal found 11/8£257
Wed 23/907:20 -
Nonstop6h 02m
Wed 23/912:30 -
1 stop7h 59m
Deal found 12/8£261
Sat 3/1007:03 -
Nonstop6h 12m
Sat 17/1008:08 -
Nonstop5h 35m
Deal found 12/8£264
Wed 28/1009:03 -
Nonstop6h 05m
Thu 5/1107:35 -
Nonstop5h 26m
Deal found 11/8£265
Thu 5/1116:00 -
Nonstop6h 17m
Mon 9/1121:40 -
Nonstop5h 24m
Deal found 11/8£266
Sat 5/1216:00 -
Nonstop6h 17m
Tue 8/1207:35 -
Nonstop5h 26m
Deal found 13/8£267
Thu 15/1007:03 -
Nonstop6h 12m
Sun 18/1022:40 -
Nonstop5h 19m
Deal found 9/8£267
Sun 4/1018:44 -
Nonstop6h 11m
Sun 11/1022:48 -
Nonstop5h 12m
Deal found 12/8£268
Sun 20/920:25 -
Nonstop6h 11m
Wed 23/908:40 -
1 stop7h 55m
Deal found 12/8£269
Wed 9/917:02 -
1 stop8h 37m
Wed 16/910:04 -
1 stop10h 25m
Deal found 12/8£269

Find flight deals from Newark to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 August 2026.

Round-trip from

£249

One-way from

£143

Popular in

July

Cheapest in

October

Average price

£389
United Airlines
  • United Airlines
  • 1/10-6/10
  • Nonstop
  • 11h 33m total
  • Newark to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 10/10
  • Nonstop
  • 6h 05m total
  • Newark to Seattle
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£65 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Newark to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 August 2026.
Use the filters below to find and compare flights from Newark Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Wed 7/10

15:18-18:19

Nonstop6h 01m

Seattle/Tacoma Intl

Tue 13/10

07:00-15:22

Nonstop5h 22m

£249
Fastest return journey

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Wed 30/9

07:50-10:54

Nonstop6h 04m

Seattle/Tacoma Intl

Mon 5/10

22:48-07:00

Nonstop5h 12m

£249

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Sun 4/10

06:00-11:27

1 stop8h 27m

Seattle/Tacoma Intl

Sun 11/10

22:48-07:00

Nonstop5h 12m

£257

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Sat 19/9

07:20-10:22

Nonstop6h 02m

Seattle/Tacoma Intl

Wed 30/9

12:30-23:29

1 stop7h 59m

£272

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Sat 12/9

07:20-10:22

Nonstop6h 02m

Seattle/Tacoma Intl

Wed 16/9

08:35-23:29

1 stop11h 54m

£272

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Thu 5/11

19:29-22:42

Nonstop6h 13m

Seattle/Tacoma Intl

Mon 9/11

16:59-06:35

1 stop10h 36m

£272

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Tue 22/9

07:00-13:44

1 stop9h 44m

Seattle/Tacoma Intl

Tue 29/9

09:43-19:30

1 stop6h 47m

£279

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Sun 31/1

17:30-00:09

1 stop9h 39m

Seattle/Tacoma Intl

Fri 5/2

19:35-06:04

1 stop7h 29m

£281

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Tue 22/9

09:00-12:02

Nonstop6h 02m

Seattle/Tacoma Intl

Tue 29/9

22:01-06:30

Nonstop5h 29m

£306

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Fri 25/9

17:50-20:52

Nonstop6h 02m

Seattle/Tacoma Intl

Fri 2/10

09:55-18:29

Nonstop5h 34m

£320

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Newark to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Newark with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Newark Airport to Seattle

How far ahead should I book a flight from Newark Airport to Seattle?

To ensure you get the cheapest price possible for a flight from Newark Airport to Seattle, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Newark Airport to Seattle?

Currently, October is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of £218). Flying from Newark Airport to Seattle in July is currently the most expensive (average of £389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from EWR to SEA?

Find hourly flight availability from Newark to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 August 2026.

When flying from Newark Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Newark Airport to Seattle?

Airfare is below average for this route at the moment.

Newark Airport to Seattle flights typically cost between £304 and £483 in October.
The cheapest return price found within the last 5 days was £249 on United Airlines (1 Oct–6 Oct).

Related info for your journey

Find useful and relevant information for your journey from Newark to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Newark?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Newark. On average, Seattle/Tacoma Intl has 7 inbound flights from Newark per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Newark Airport to Seattle?

    There are many flights that can get you from Newark Airport to Seattle in 6h 01m. Fly via United Airlines or Alaska Airlines to get the fastest option. Airlines will cover a distance of 2393 mi. Generally, flights for this route are direct.

  • What are the most reliable airlines from Newark Airport to Seattle?

    The top 3 most reliable airlines when flying from Newark Airport to Seattle are American Airlines (84%), Japan Airlines (84%) and Alaska Airlines (83%).

  • Can I find deals for flights from Newark to Seattle that include hotel bookings?

    Yes. In addition to deals on Newark to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Newark to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Newark to Seattle.

  • Can I find deals for business class flights from Newark to Seattle?

    Yes. Cheapflights offers flight deals from Newark to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Newark Airport to Seattle?

    Currently, October is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of £218). Flying from Newark Airport to Seattle in July is currently the most expensive (average of £389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

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Alternative routes for Newark to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Seattle flights
John F Kennedy Intl to Portland flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Newark to Seattle?

Cheapflights helps you search for flights from Newark to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Newark to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Newark.

Can Cheapflights find flights from Newark to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Newark to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Newark to Seattle become cheaper?

Yes! Start tracking prices for Newark to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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