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Cheap flights from Newark Airport to Seattle from C$ 137

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SEA
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Newark to Seattle/Tacoma Intl are usually found in September or February, booked 73 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap 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 11 September 2025.

Round-trip from

C$ 273

One-way from

C$ 137

Popular in

December

Cheapest in

September

Average price

C$ 467

Good round-trip deal

C$ 253 or less

Good one-way deal

C$ 206 or less
United Airlines
  • United Airlines
  • 10/10-17/10
  • Nonstop
  • 11h 14m total
  • Newark to Seattle
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United Airlines
  • United Airlines
  • 1/10
  • Nonstop
  • 6h 09m total
  • Newark to Seattle
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 54 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 26 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Newark to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Newark to Seattle/Tacoma Intl.
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Find flight deals from Newark to Seattle

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 11 September 2025.

Fri 31/107:55 a.m.EWR - SEA
Nonstop6h 16mUnited Airlines
Thu 13/1111:50 p.m.SEA - EWR
Nonstop5h 08mUnited Airlines
Deal found 11/9C$ 273
Tue 30/93:32 p.m.EWR - SEA
Nonstop5h 59mUnited Airlines
Sun 5/106:00 a.m.SEA - EWR
Nonstop5h 23mUnited Airlines
Deal found 11/9C$ 280
Wed 1/103:32 p.m.EWR - SEA
Nonstop5h 59mUnited Airlines
Sat 4/108:30 a.m.SEA - EWR
1 stop8h 30mUnited Airlines
Deal found 10/9C$ 281
Wed 5/117:23 p.m.EWR - SEA
Nonstop6h 18mUnited Airlines
Wed 12/116:20 a.m.SEA - EWR
Nonstop5h 16mUnited Airlines
Deal found 11/9C$ 283
Thu 2/107:29 p.m.EWR - SEA
Nonstop6h 10mHawaiian Airlines
Wed 29/108:48 a.m.SEA - EWR
Nonstop5h 18mHawaiian Airlines
Deal found 11/9C$ 287
Tue 30/97:08 p.m.EWR - SEA
Nonstop6h 09mUnited Airlines
Sat 4/108:30 a.m.SEA - EWR
1 stop8h 30mUnited Airlines
Deal found 10/9C$ 288
Sat 8/117:55 a.m.EWR - SEA
Nonstop6h 16mUnited Airlines
Wed 12/118:36 a.m.SEA - EWR
1 stop7h 53mUnited Airlines
Deal found 10/9C$ 291
Sat 27/93:32 p.m.EWR - SEA
Nonstop5h 59mUnited Airlines
Wed 1/108:30 a.m.SEA - EWR
1 stop8h 00mUnited Airlines
Deal found 11/9C$ 295
Fri 3/107:19 a.m.EWR - SEA
Nonstop6h 01mHawaiian Airlines
Tue 7/107:00 a.m.SEA - EWR
Nonstop5h 29mHawaiian Airlines
Deal found 11/9C$ 301
Tue 30/95:30 p.m.EWR - SEA
Nonstop6h 05mAlaska Airlines
Wed 1/108:19 a.m.SEA - EWR
Nonstop5h 29mAlaska Airlines
Deal found 11/9C$ 308
Thu 25/97:45 a.m.EWR - SEA
Nonstop6h 02mUnited Airlines
Sat 27/98:30 a.m.SEA - EWR
1 stop8h 30mUnited Airlines
Deal found 10/9C$ 309

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 11 September 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

Fri 17/10

7:08 p.m.-10:17 p.m.

Nonstop6h 09m

Seattle/Tacoma Intl

Mon 20/10

10:54 p.m.-7:09 a.m.

Nonstop5h 15m

C$ 273

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 31/10

7:30 a.m.-10:40 a.m.

Nonstop6h 10m

Seattle/Tacoma Intl

Fri 14/11

9:34 p.m.-5:59 a.m.

Nonstop5h 25m

C$ 273

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Wed 1/10

7:45 a.m.-10:47 a.m.

Nonstop6h 02m

Seattle/Tacoma Intl

Sat 4/10

10:54 p.m.-7:09 a.m.

Nonstop5h 15m

C$ 273

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 1/11

7:30 a.m.-10:40 a.m.

Nonstop6h 10m

Seattle/Tacoma Intl

Tue 4/11

10:05 a.m.-6:29 p.m.

Nonstop5h 24m

C$ 273

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 24/10

3:32 p.m.-6:31 p.m.

Nonstop5h 59m

Seattle/Tacoma Intl

Mon 27/10

11:50 p.m.-7:58 a.m.

Nonstop5h 08m

C$ 273

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Wed 1/10

3:32 p.m.-6:31 p.m.

Nonstop5h 59m

Seattle/Tacoma Intl

Sun 5/10

6:00 a.m.-2:23 p.m.

Nonstop5h 23m

C$ 273

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Wed 1/10

7:29 p.m.-10:39 p.m.

Nonstop6h 10m

Seattle/Tacoma Intl

Sun 5/10

9:30 p.m.-5:59 a.m.

Nonstop5h 29m

C$ 287

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 30/9

8:20 a.m.-2:24 p.m.

1 stop9h 04m

Seattle/Tacoma Intl

Sun 5/10

6:00 a.m.-2:23 p.m.

Nonstop5h 23m

C$ 294

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 2/10

4:00 p.m.-6:58 p.m.

Nonstop5h 58m

Seattle/Tacoma Intl

Fri 3/10

8:19 a.m.-4:48 p.m.

Nonstop5h 29m

C$ 301

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 2/10

7:45 a.m.-10:47 a.m.

Nonstop6h 02m

Seattle/Tacoma Intl

Tue 14/10

11:40 p.m.-10:27 a.m.

1 stop7h 47m

C$ 301

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 22 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 round-trip 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 round-trip flight from Newark to Seattle. Price data was last updated on 29 August 2025.

The price you pay for your flight from Newark Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of C$ 262). Flying from Newark Airport to Seattle in December is currently the most expensive (average of C$ 353). 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 11 September 2025.

It’s optimal to fly from Newark Airport to Seattle in the morning. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 11 September 2025.
Get a feel of what it's like to fly with Alaska Airlines from Newark Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly into when you book flights from Newark to Seattle. 1 airline have flights to Seattle/Tacoma Intl from Newark on a regular basis. Booking flights from Newark to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 16 inbound flights from Newark per day.

  • How popular is this Newark Airport to Seattle flight route?

    This flight path from Newark to Seattle/Tacoma Intl was viewed by 16 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 02m. Fly via Alaska Airlines, Hawaiian Airlines, or United Airlines to get the fastest option. The distance from Newark Airport to Seattle is about 3851 km. Generally, flights for this route are direct.

  • What is the cheapest airline to fly from Newark Airport to Seattle round-trip?

    Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at C$ 502. This flight start at 15% lower than the current average price 3 months from now.

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

    Before booking your flight to Seattle from Newark Airport, check out the most reliable airlines to get you to your destination on time: Asiana Airlines (93%), United Airlines (82%), American Airlines( 79%).

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

    Looking at all options, your cheapest flight can be booked for C$ 184. While the most popular route (Newark - Seattle/Tacoma Intl) can be booked for C$ 402 on average, our data indicates C$ 393 when flying from Newark Airport to Seattle.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of C$ 262). Flying from Newark Airport to Seattle in December is currently the most expensive (average of C$ 353). 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
Leavenworth
SeaTac
Tukwila
Tacoma
Bothell
Cashmere
Renton
Olympia
Marysville
Lynnwood

Browse thousands of different options on Cheapflights for your next trip

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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

Top airline flying from Newark to Seattle

Discover the top airline that operate flights from Newark to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 502AverageC$ 799FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Newark to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Newark to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Certainly. Search results for flights to Seattle from Newark shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Newark today and book when prices fit your budget.

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