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Cheap flights from Newark Airport to Seattle from £79

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SEA
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

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 18 December 2025.

Thu 25/1207:09EWR - SEA
Nonstop6h 27mAlaska Airlines
Tue 6/108:19SEA - EWR
Nonstop5h 26mAlaska Airlines
Deal found 16/12£218
Thu 25/1217:45EWR - SEA
Nonstop6h 06mAlaska Airlines
Sun 28/1216:49SEA - EWR
1 stop10h 10mAlaska Airlines
Deal found 16/12£226
Thu 25/1215:24EWR - SEA
1 stop10h 23mUnited Airlines
Tue 6/107:00SEA - EWR
Nonstop5h 19mUnited Airlines
Deal found 17/12£247
Wed 31/1206:00EWR - SEA
1 stop8h 27mUnited Airlines
Wed 7/117:12SEA - EWR
1 stop9h 33mUnited Airlines
Deal found 17/12£248
Thu 25/1207:09EWR - SEA
Nonstop6h 27mAlaska Airlines
Wed 7/110:09SEA - EWR
Nonstop5h 15mAlaska Airlines
Deal found 16/12£283
Thu 25/1207:09EWR - SEA
Nonstop6h 27mAlaska Airlines
Tue 30/1221:35SEA - EWR
1 stop29h 14mAlaska Airlines
Deal found 16/12£284
Thu 25/1207:09EWR - SEA
Nonstop6h 27mAlaska Airlines
Sun 4/122:39SEA - EWR
Nonstop5h 20mAlaska Airlines
Deal found 16/12£286
Thu 25/1207:09EWR - SEA
Nonstop6h 27mAlaska Airlines
Thu 1/108:55SEA - EWR
1 stop7h 04mAlaska Airlines
Deal found 16/12£297

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 18 December 2025.

Round-trip from

£163

One-way from

£79

Popular in

December

Cheapest in

October

Average price

£401
Alaska Airlines
  • Alaska Airlines
  • 14/2-17/2
  • 1 total stop
  • 14h 39m total
  • Newark to Seattle
Search Deals
United Airlines
  • United Airlines
  • 16/1
  • Nonstop
  • 6h 22m total
  • Newark to Seattle
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£8 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 December 2025
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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 18 December 2025.
Use the filters below to find and compare flights from Newark Airport to Seattle that are best for you.

Fly from

Newark

Fly to

Seattle

Route

Depart

Return

Price

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Wed 18/3

07:49-11:10

Nonstop6h 21m

Seattle/Tacoma Intl

Wed 25/3

05:00-17:23

1 stop9h 23m

£163

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Wed 29/4

15:29-18:44

Nonstop6h 15m

Seattle/Tacoma Intl

Sun 3/5

06:05-14:27

Nonstop5h 22m

£164

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Wed 22/4

07:00-10:15

Nonstop6h 15m

Seattle/Tacoma Intl

Sat 25/4

10:30-18:56

Nonstop5h 26m

£164

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 20/3

19:29-22:53

Nonstop6h 24m

Seattle/Tacoma Intl

Mon 23/3

23:59-08:08

Nonstop5h 09m

£164

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 19/3

07:00-10:15

Nonstop6h 15m

Seattle/Tacoma Intl

Sun 22/3

21:35-05:52

Nonstop5h 17m

£164

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 17/2

19:29-22:54

Nonstop6h 25m

Seattle/Tacoma Intl

Fri 20/2

07:45-18:59

1 stop8h 14m

£171

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 17/1

18:08-21:28

Nonstop6h 20m

Seattle/Tacoma Intl

Sat 24/1

10:09-18:24

Nonstop5h 15m

£173

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 22/1

16:36-19:55

Nonstop6h 19m

Seattle/Tacoma Intl

Sun 25/1

17:59-15:29

1 stop18h 30m

£174

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 15/1

06:00-10:55

1 stop7h 55m

Seattle/Tacoma Intl

Wed 21/1

13:38-23:59

1 stop7h 21m

£177

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 9/1

06:00-11:32

1 stop8h 32m

Seattle/Tacoma Intl

Sun 11/1

19:30-07:09

1 stop8h 39m

£177

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 23 results
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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?

Use this chart to determine the optimal time to book a return flight from Newark to Seattle. Price data was last updated on 12 December 2025.

To ensure you get the cheapest price possible for a flight from Newark Airport to Seattle, you should look to book at least 73 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 £132). Flying from Newark Airport to Seattle in July is currently the most expensive (average of £207). 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 18 December 2025.

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.

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 8 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 popular is this Newark Airport to Seattle flight route?

    The Newark to Seattle/Tacoma Intl flight path was viewed by 21 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 15m. 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 United Airlines (70%), American Airlines (65%) and Japan Airlines (65%).

  • 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 £132). Flying from Newark Airport to Seattle in July is currently the most expensive (average of £207). 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
Tacoma
Leavenworth
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.
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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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