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Cheap flights from Newark Airport to Seattle from £105

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SEA
16 Jul — 23 Jul1
1 adult

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

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 July 2025.

Round-trip from

£203

One-way from

£105

Popular in

December

Cheapest in

February

Average price

£389

Good round-trip deal

£2,217 or less
Alaska Airlines
  • Alaska Airlines
  • 23/8-2/9
  • 2 total stops
  • 36h 19m total
  • Newark to Seattle
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Hawaiian Airlines
  • Hawaiian Airlines
  • 15/8
  • 1 total stop
  • 10h 17m 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. 2% potential price decrease (£7 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip 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 July 2025.

Sat 23/816:43EWR - SEA
1 stop19h 42mAlaska Airlines
Tue 2/919:59SEA - EWR
1 stop16h 37mAlaska Airlines
Deal found 8/7£203
Tue 19/809:00EWR - SEA
1 stop10h 54mHawaiian Airlines
Tue 9/1222:30SEA - EWR
Nonstop5h 25mHawaiian Airlines
Deal found 10/7£205
Thu 28/807:45EWR - SEA
Nonstop6h 00mUnited Airlines
Thu 28/822:55SEA - EWR
1 stop8h 05mUnited Airlines
Deal found 9/7£205
Tue 9/907:10EWR - SEA
2 stops14h 36mDelta
Tue 16/917:45SEA - EWR
1 stop9h 20mDelta
Deal found 9/7£210
Sun 7/911:44EWR - SEA
1 stop8h 26mSun Country Air
Sun 14/918:25SEA - EWR
1 stop13h 21mSun Country Air
Deal found 10/7£232

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 11 July 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

Sat 23/8

16:43-09:25

1 stop19h 42m

Seattle/Tacoma Intl

Tue 2/9

19:59-15:36

1 stop16h 37m

£203

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 19/8

09:00-16:54

1 stop10h 54m

Seattle/Tacoma Intl

Tue 9/12

22:30-06:55

Nonstop5h 25m

£205

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 28/8

07:45-10:45

Nonstop6h 00m

Seattle/Tacoma Intl

Thu 28/8

22:55-10:00

1 stop8h 05m

£205

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 9/9

07:10-18:46

2 stops14h 36m

Seattle/Tacoma Intl

Tue 16/9

17:45-06:05

1 stop9h 20m

£210

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sun 7/9

11:44-17:10

1 stop8h 26m

Seattle/Tacoma Intl

Sun 14/9

18:25-10:46

1 stop13h 21m

£232

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 15/8

16:34-23:51

1 stop10h 17m

£105

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 18/8

18:55-00:06

1 stop8h 11m

£106

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Wed 23/7

07:30-10:37

Nonstop6h 07m

£108

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 30/8

11:38-08:28

1 stop23h 50m

£120

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 16/8

16:34-23:51

1 stop10h 17m

£153

Flights are sorted by cheapest return flights first.

Deals found on 10/7

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 27 June 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, January is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of £622). Flying from Newark Airport to Seattle in July is currently the most expensive (average of £946). 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 July 2025.

One of the essential ways to save on airfare from Newark Airport to Seattle is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 20% on airfare.

Weekly flight availability from Newark Airport to Seattle

Explore weekly flight availability from Newark to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 July 2025.

The most flights from EWR to SEA are scheduled on a Wednesday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

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 July 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, andHawaiian 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

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very Good
7,951 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.8
Good
2,565 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,846 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Sun Country Air
6.9
Okay
335 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 17 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.

  • What are the cheapest airlines flying from Newark Airport to Seattle round-trip?

    According to our current data, Alaska Airlines (£203), Hawaiian Airlines (£205), and United Airlines (£205) offers the cheapest pricing from Newark Airport to Seattle. Alaska Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Newark Airport to Seattle one-way?

    For one-way options, check prices for Hawaiian Airlines. According to our data, you can fly for as low as £105. Users have also found prices from £106 and £108 on Delta and United Airlines, respectively.

  • 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 (80%), Japan Airlines (80%) and Korean Air (80%).

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

    On average you can expect to pay £2,220 for a flight from Newark Airport to Seattle. The cheapest flight overall is £2,211 while the most popular route, (Newark - Seattle/Tacoma Intl) is currently priced at £382.

  • 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, January is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of £622). Flying from Newark Airport to Seattle in July is currently the most expensive (average of £946). 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
Tacoma
Leavenworth
Bothell
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 Portland flights
John F Kennedy Intl to Seattle flights

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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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