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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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SEA
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

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

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 12 December 2025.

Tue 16/129:00 a.m.EWR - SEA
1 stop12h 33mAlaska Airlines
Mon 5/110:39 p.m.SEA - EWR
Nonstop5h 20mAlaska Airlines
Deal found 10/12C$ 432
Thu 18/123:24 p.m.EWR - SEA
1 stop10h 23mUnited Airlines
Wed 4/27:00 a.m.SEA - EWR
Nonstop5h 19mUnited Airlines
Deal found 11/12C$ 503
Thu 25/1212:00 p.m.EWR - SEA
1 stop9h 45mUnited Airlines
Wed 31/1211:09 p.m.SEA - EWR
Nonstop5h 14mUnited Airlines
Deal found 9/12C$ 520
Thu 18/126:00 a.m.EWR - SEA
1 stop9h 03mUnited Airlines
Mon 5/16:00 a.m.SEA - EWR
Nonstop5h 17mUnited Airlines
Deal found 11/12C$ 525
Tue 16/127:25 p.m.EWR - SEA
Nonstop6h 13mUnited Airlines
Wed 11/27:00 a.m.SEA - EWR
Nonstop5h 19mUnited Airlines
Deal found 11/12C$ 534
Wed 31/126:15 p.m.EWR - SEA
Nonstop6h 20mUnited Airlines
Wed 7/17:00 a.m.SEA - EWR
Nonstop5h 19mUnited Airlines
Deal found 9/12C$ 542
Sat 27/1211:54 a.m.EWR - SEA
1 stop9h 06mSun Country Air
Sat 3/16:28 p.m.SEA - EWR
1 stop13h 28mSun Country Air
Deal found 11/12C$ 550

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 12 December 2025.

Round-trip from

C$ 298

One-way from

C$ 137

Popular in

June

Cheapest in

October

Average price

C$ 727

Good round-trip deal

C$ 715 or less

Good one-way deal

C$ 284 or less
Alaska Airlines
  • Alaska Airlines
  • 14/2-18/2
  • 2 total stops
  • 33h 45m total
  • Newark to Seattle
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United Airlines
  • United Airlines
  • 17/1
  • Nonstop
  • 6h 25m total
  • Newark to Seattle
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 162 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Newark to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Newark to Seattle/Tacoma Intl.
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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 12 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

Thu 29/1

6:00 a.m.-11:32 a.m.

1 stop8h 32m

Seattle/Tacoma Intl

Sun 1/2

11:45 p.m.-7:59 a.m.

Nonstop5h 14m

C$ 301

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 9/1

7:45 a.m.-11:07 a.m.

Nonstop6h 22m

Seattle/Tacoma Intl

Fri 16/1

2:10 p.m.-12:45 a.m.

1 stop7h 35m

C$ 301

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 23/2

7:29 p.m.-10:54 p.m.

Nonstop6h 25m

Seattle/Tacoma Intl

Thu 26/2

7:45 a.m.-6:59 p.m.

1 stop8h 14m

C$ 316

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 24/2

8:28 p.m.-11:51 p.m.

Nonstop6h 23m

Seattle/Tacoma Intl

Sat 28/2

11:59 p.m.-10:17 a.m.

1 stop7h 18m

C$ 316

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 30/4

6:00 a.m.-11:47 a.m.

1 stop8h 47m

Seattle/Tacoma Intl

Mon 4/5

7:15 a.m.-3:38 p.m.

Nonstop5h 23m

C$ 316

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 10/1

8:00 a.m.-2:18 p.m.

1 stop9h 18m

Seattle/Tacoma Intl

Sun 1/2

11:10 p.m.-8:52 a.m.

1 stop6h 42m

C$ 327

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 17/2

5:00 p.m.-10:05 p.m.

1 stop8h 05m

Seattle/Tacoma Intl

Mon 2/3

11:15 p.m.-12:09 p.m.

1 stop9h 54m

C$ 330

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 24/1

6:08 p.m.-9:28 p.m.

Nonstop6h 20m

Seattle/Tacoma Intl

Sat 31/1

6:00 a.m.-3:29 p.m.

1 stop30h 29m

C$ 359

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 19/1

6:00 a.m.-11:32 a.m.

1 stop8h 32m

Seattle/Tacoma Intl

Sat 24/1

8:40 a.m.-7:17 p.m.

1 stop7h 37m

C$ 361

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 8/1

6:00 a.m.-2:21 p.m.

1 stop11h 21m

Seattle/Tacoma Intl

Wed 14/1

6:05 a.m.-5:29 p.m.

1 stop8h 24m

C$ 375

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

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 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 5 December 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, October is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of C$ 244). Flying from Newark Airport to Seattle in July is currently the most expensive (average of C$ 382). 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 12 December 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Newark Airport to Seattle as you normally would.

How much does it cost to fly round-trip from Newark Airport to Seattle?

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. 0 airlines 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 14 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 25m. Fly via United Airlines or Alaska Airlines to get the fastest option. The distance from Newark Airport to Seattle is about 3851 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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: American Airlines (69%), Japan Airlines (69%), Korean Air( 69%).

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

    Looking at all options, your cheapest flight can be booked for C$ 215. While the most popular route (Newark - Seattle/Tacoma Intl) can be booked for C$ 430 on average, our data indicates C$ 531 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, October is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of C$ 244). Flying from Newark Airport to Seattle in July is currently the most expensive (average of C$ 382). 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
Mukilteo
Tacoma
Bothell
Cashmere
Olympia
Renton
Marysville
Lynnwood

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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

Fly with Cheapflights

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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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