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Cheap flights from Seattle to Newark Airport from £129

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — EWR
24 Aug — 31 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Newark

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Newark
Explore the most affordable flight options available from Seattle to Newark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 July 2026.

Mon 21/922:01
SEA
-
EWR
Nonstop5h 29m
Alaska Airlines
Fri 25/917:50
EWR
-
SEA
Nonstop6h 02m
Alaska Airlines
Deal found 24/7£253
Sat 3/1022:40
SEA
-
EWR
Nonstop5h 19m
Alaska Airlines
Fri 9/1017:43
EWR
-
SEA
Nonstop6h 15m
Alaska Airlines
Deal found 22/7£254
Mon 23/1121:40
SEA
-
EWR
Nonstop5h 24m
Alaska Airlines
Fri 4/1207:17
EWR
-
SEA
Nonstop6h 13m
Alaska Airlines
Deal found 21/7£254
Fri 11/910:04
SEA
-
EWR
1 stop10h 25m
Alaska Airlines
Wed 16/907:20
EWR
-
SEA
Nonstop6h 02m
Alaska Airlines
Deal found 25/7£257
Fri 11/918:51
SEA
-
EWR
1 stop18h 11m
Alaska Airlines
Sun 20/907:20
EWR
-
SEA
Nonstop6h 02m
Alaska Airlines
Deal found 21/7£257
Sat 26/907:20
SEA
-
EWR
1 stop8h 19m
Delta
Wed 30/918:45
EWR
-
SEA
1 stop8h 10m
Delta
Deal found 21/7£259
Sat 5/905:00
SEA
-
EWR
1 stop8h 29m
American Airlines
Sat 12/906:48
EWR
-
SEA
1 stop9h 02m
American Airlines
Deal found 25/7£260
Fri 11/912:30
SEA
-
EWR
1 stop7h 59m
Alaska Airlines
Mon 14/906:55
EWR
-
SEA
1 stop8h 55m
Alaska Airlines
Deal found 22/7£260
Tue 17/1106:00
SEA
-
EWR
1 stop9h 59m
Alaska Airlines
Wed 2/1219:29
EWR
-
SEA
Nonstop6h 13m
Alaska Airlines
Deal found 23/7£261
Thu 3/1210:30
SEA
-
EWR
Nonstop5h 26m
Alaska Airlines
Tue 8/1219:59
EWR
-
SEA
1 stop15h 53m
Alaska Airlines
Deal found 22/7£262
Wed 16/907:08
SEA
-
EWR
1 stop13h 21m
Alaska Airlines
Tue 22/909:00
EWR
-
SEA
Nonstop6h 02m
Alaska Airlines
Deal found 25/7£263
Thu 17/907:08
SEA
-
EWR
1 stop13h 21m
Alaska Airlines
Tue 22/909:00
EWR
-
SEA
Nonstop6h 02m
Alaska Airlines
Deal found 24/7£263

Find flight deals from Seattle to Newark

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Newark (EWR). 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 25 July 2026.

Round-trip from

£246

One-way from

£129

Popular in

July

Cheapest in

October

Average price

£388

Good one-way deal

£122 or less
Alaska Airlines
  • Alaska Airlines
  • 22/10-28/10
  • Nonstop
  • 11h 24m total
  • Seattle to Newark
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 21/10
  • Nonstop
  • 5h 19m total
  • Seattle to Newark
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£54 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 July 2026
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Newark.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to Newark 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 25 July 2026.
Use the filters below to find and compare flights from Seattle to Newark Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Fri 13/11

08:40-17:01

Nonstop5h 21m

Newark

Mon 16/11

17:30-09:28

1 stop18h 58m

£260

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Mon 21/9

22:01-06:30

Nonstop5h 29m

Newark

Sat 26/9

09:00-12:02

Nonstop6h 02m

£269

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Thu 10/9

12:30-23:29

1 stop7h 59m

Newark

Sun 13/9

06:50-12:50

1 stop9h 00m

£272

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Sat 26/9

22:01-06:30

Nonstop5h 29m

Newark

Wed 30/9

17:50-20:52

Nonstop6h 02m

£284

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Wed 14/10

22:40-06:59

Nonstop5h 19m

Newark

Mon 19/10

07:03-10:15

Nonstop6h 12m

£290

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Fri 15/1

08:40-17:01

Nonstop5h 21m

Newark

Mon 18/1

17:05-20:23

Nonstop6h 18m

£299
Fastest return journey

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Tue 11/8

22:58-07:10

Nonstop5h 12m

Newark

Wed 12/8

20:33-23:44

Nonstop6h 11m

£328

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Tue 1/9

20:49-16:50

1 stop17h 01m

Newark

Fri 11/9

17:50-20:52

Nonstop6h 02m

£335

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Mon 2/11

07:00-15:14

Nonstop5h 14m

Newark

Sun 8/11

07:45-11:05

Nonstop6h 20m

£338

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Sun 20/9

18:52-06:43

1 stop8h 51m

Newark

Thu 24/9

15:18-18:19

Nonstop6h 01m

£350

Flights are sorted by cheapest return flights first.

Deals found on 22/7

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Newark

Have a flexible travel schedule? Discover the best time to fly to Newark from Seattle 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 Seattle to Newark Airport

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

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Newark Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from Seattle to Newark Airport (average of £222). Flying from Seattle to Newark Airport in July is currently the most expensive (average of £381). 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 SEA to EWR?

Find hourly flight availability from Seattle to Newark. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 July 2026.

When flying from Seattle to Newark Airport, 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 Seattle to Newark Airport?

Airfare is below average for this route at the moment.

Seattle to Newark Airport flights typically cost between £265 and £409 in October.
The cheapest return price found within the last 5 days was £246 on Alaska Airlines (22 Oct–28 Oct).

Related info for your journey

Find useful and relevant information for your journey from Seattle to Newark. 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 from for flights from Seattle to Newark?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Newark. You should not have trouble finding flights to Newark from Seattle/Tacoma Intl; the airport handles an average of 8 outbound flights to Newark per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Seattle airport to Newark. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

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

    There are many flights that can get you from Seattle to Newark Airport in 5h 21m. Fly via Alaska Airlines to get the fastest option. The distance between Seattle and Newark Airport is about 2393 mi. Most flights are nonstop.

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

    Before booking your flight to Newark Airport from Seattle, check out the most reliable airlines to get you to your destination on time: TAP AIR PORTUGAL (87%), American Airlines (82%), Alaska Airlines( 80%).

  • What are the cheapest flights from Seattle to Newark Airport?

    Looking at all options, your cheapest flight can be booked for £122. While the most popular route (Seattle/Tacoma Intl - Newark) can be booked for £269 on average, our data indicates £408 when flying from Seattle to Newark Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Newark 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 Seattle to Newark Airport?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Newark Airport (average of £222). Flying from Seattle to Newark Airport in July is currently the most expensive (average of £381). 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 Newark Airport?

Book flights to Newark Airport if you plan to visit one of these locations
Queens
Ronkonkoma
Weehawken
Yonkers
Elizabeth
Mahwah
North Bergen
Bronx
North Wales
Rutherford
Garden City
Staten Island
Norwalk
Carlstadt
Fort Lee
Rahway
Secaucus
Carteret
West New York
Edgewater

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Newark

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Newark flights

Fly with Cheapflights

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

When you search for this flight from Seattle to Newark, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 Newark from Seattle.

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

Yes, we can. To see specific flights from Seattle to Newark with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Seattle to Newark 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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