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Newark Liberty International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Newark Liberty International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from €100 and round-trip from €275. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        EWR 07:03
        6h 12m
        Direct
        SEA 10:15
        New York - Seattle | Sat, Oct 24 | Alaska Airlines
        SEA 22:40
        5h 19m
        Direct
        EWR 06:59
        Seattle - New York | Mon, Oct 26 | Alaska Airlines
        €275 €398
        31% off
        31% off
        €398 €275
      • EWR 07:03
        6h 12m
        Direct
        SEA 10:15
        New York - Seattle | Sat, Oct 3 | Alaska Airlines
        SEA 22:40
        5h 19m
        Direct
        EWR 06:59
        Seattle - New York | Mon, Oct 5 | Alaska Airlines
        €279 €398
        30% off
        30% off
        €398 €279
      • EWR 07:00
        6h 16m
        Direct
        SEA 10:16
        New York - Seattle | Wed, Nov 4 | Alaska Airlines
        SEA 06:00
        5h 29m
        Direct
        EWR 14:29
        Seattle - New York | Sat, Nov 7 | Alaska Airlines
        €297 €398
        25% off
        25% off
        €398 €297
      • EWR 09:03
        6h 5m
        Direct
        SEA 12:08
        New York - Seattle | Thu, Oct 29 | Alaska Airlines
        SEA 09:58
        5h 31m
        Direct
        EWR 18:29
        Seattle - New York | Sat, Oct 31 | Alaska Airlines
        €305
        23% off
        €398 €305
      • EWR 09:30
        6h 5m
        Direct
        SEA 12:35
        New York - Seattle | Wed, Oct 21 | Alaska Airlines
        SEA 22:40
        5h 19m
        Direct
        EWR 06:59
        Seattle - New York | Sat, Oct 24 | Alaska Airlines
        €306
        23% off
        €398 €306
      • EWR 07:03
        6h 12m
        Direct
        SEA 10:15
        New York - Seattle | Wed, Oct 28 | Alaska Airlines
        SEA 08:08
        5h 35m
        Direct
        EWR 16:43
        Seattle - New York | Sat, Oct 31 | Alaska Airlines
        €306
        23% off
        €398 €306
      • EWR 07:03
        6h 12m
        Direct
        SEA 10:15
        New York - Seattle | Sat, Oct 31 | Alaska Airlines
        SEA 21:18
        5h 22m
        Direct
        EWR 05:40
        Seattle - New York | Tue, Nov 3 | Alaska Airlines
        €306
        23% off
        €398 €306
      • EWR 07:04
        10h 46m
        1 stop
        SEA 14:50
        New York - Seattle | Sat, Oct 24 | Delta Air Lines
        SEA 23:59
        9h 31m
        1 stop
        EWR 12:30
        Seattle - New York | Mon, Oct 26 | Delta Air Lines
        €285
        28% off
        €398 €285
      • EWR 06:30
        8h 35m
        1 stop
        SEA 12:05
        New York - Seattle | Fri, Oct 30 | Alaska Airlines
        SEA 06:00
        5h 29m
        Direct
        EWR 14:29
        Seattle - New York | Sun, Nov 1 | Alaska Airlines
        €290
        27% off
        €398 €290
      • EWR 16:59
        8h 6m
        1 stop
        SEA 22:05
        New York - Seattle | Sat, Oct 3 | Delta Air Lines
        SEA 22:40
        5h 19m
        Direct
        EWR 06:59
        Seattle - New York | Mon, Oct 5 | Alaska Airlines
        €290
        27% off
        €398 €290
      • EWR 05:00
        9h 25m
        1 stop
        SEA 11:25
        New York - Seattle | Sat, Oct 3 | American Airlines
        SEA 00:25
        8h 35m
        1 stop
        LGA 12:00
        Seattle - New York | Mon, Oct 5 | American Airlines
        €291
        27% off
        €398 €291
      • EWR 07:04
        8h 48m
        1 stop
        SEA 12:52
        New York - Seattle | Fri, Oct 30 | Delta Air Lines
        SEA 21:18
        5h 22m
        Direct
        EWR 05:40
        Seattle - New York | Sun, Nov 1 | Alaska Airlines
        €292
        27% off
        €398 €292
      • NYC 13:00
        17h 25m
        1 stop
        SEA 14:00
        New York - Seattle | Sun, Sep 27 | Normal Airline
        SEA 15:00
        6h
        Direct
        NYC 16:00
        Seattle - New York | Tue, Sep 29 | Normal Airline
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      • Cheapest nonstop
        EWR 18:05
        6h 25m
        Direct
        SEA 21:30
        New York - Seattle | Sun, Nov 15 | Alaska Airlines
        €100 €181
        45% off
        45% off
        €181 €100
      • EWR 18:25
        6h 25m
        Direct
        SEA 21:50
        New York - Seattle | Thu, Nov 12 | Alaska Airlines
        €127 €181
        30% off
        30% off
        €181 €127
      • EWR 17:43
        6h 15m
        Direct
        SEA 20:58
        New York - Seattle | Wed, Oct 28 | Alaska Airlines
        €128 €181
        28% off
        28% off
        €181 €128
      • EWR 09:30
        6h 5m
        Direct
        SEA 12:35
        New York - Seattle | Tue, Nov 10 | Alaska Airlines
        €129
        28% off
        €181 €129
      • EWR 07:03
        6h 12m
        Direct
        SEA 10:15
        New York - Seattle | Sat, Nov 14 | Alaska Airlines
        €132
        27% off
        €181 €132
      • EWR 19:29
        6h 13m
        Direct
        SEA 22:42
        New York - Seattle | Fri, Nov 20 | Alaska Airlines
        €137
        24% off
        €181 €137
      • EWR 17:50
        6h 2m
        Direct
        SEA 20:52
        New York - Seattle | Sun, Oct 18 | Alaska Airlines
        €137
        24% off
        €181 €137
      • EWR 07:03
        6h 12m
        Direct
        SEA 10:15
        New York - Seattle | Sun, Nov 8 | Alaska Airlines
        €139
        23% off
        €181 €139
      • EWR 17:43
        6h 15m
        Direct
        SEA 20:58
        New York - Seattle | Mon, Nov 9 | Alaska Airlines
        €139
        23% off
        €181 €139
      • EWR 08:00
        11h 33m
        1 stop
        SEA 16:33
        New York - Seattle | Sun, Nov 15 | Delta Air Lines
        €114
        37% off
        €181 €114
      • EWR 08:30
        11h 3m
        1 stop
        SEA 16:33
        New York - Seattle | Thu, Nov 12 | Delta Air Lines
        €135
        25% off
        €181 €135
      • EWR 13:29
        11h 34m
        1 stop
        SEA 22:03
        New York - Seattle | Fri, Nov 20 | Delta Air Lines
        €136
        25% off
        €181 €136
      • NYC 13:00
        17h 25m
        1 stop
        SEA 14:00
        New York - Seattle | Sun, Sep 27 | Normal Airline
        Find more flights
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Flight fares from Newark Liberty International Airport to Seattle-Tacoma International Airport are based on average airline prices for the next 3 months, according to Trip.com’s latest data.

Trip.com Price Insights: Flights from Newark Liberty International Airport to Seattle-Tacoma International Airport

What is the cheapest month to fly from Newark Liberty International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Newark Liberty International Airport to Seattle-Tacoma International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Newark Liberty International Airport to Seattle-Tacoma International Airport are usually in October, with an average price of €143. It is best to avoid July, when the average price can reach €298.

€298
€221
€143
€66
    Cheapest
  • €155
    Sep
  • €143
    Oct
  • €193
    Nov
  • €288
    Dec
  • €205
    Jan
  • €207
    Feb
  • €180
    Mar
  • €203
    Apr
  • €212
    May
  • €250
    Jun
  • €298
    Jul
  • €253
    Aug

What is the cheapest day of the week to fly from Newark Liberty International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average ticket prices from Newark Liberty International Airport to Seattle-Tacoma International Airport for each day of the week in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest departure day from Newark Liberty International Airport to Seattle-Tacoma International Airport is Wednesday, with average prices usually lower than other days. Avoid departing on Monday as prices are typically highest on that day.

€270
€235
€200
€165
    Cheapest
  • €270
    Mon
  • €202
    Tue
  • €200
    Wed
  • €210
    Thu
  • €206
    Fri
  • €230
    Sat
  • €266
    Sun

Which airline offers the cheapest flights from Newark Liberty International Airport to Seattle-Tacoma International Airport?

The cheapest airline flying from Newark Liberty International Airport to Seattle-Tacoma International Airport is Alaska Airlines (from €100) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From €100
Delta Air Lines
From €114
American Airlines
From €145
United Airlines
From €147
Sun Country Airlines
From €214
Frontier Airlines
From €242

Find more flights and airlines

What is the flight schedule from Newark Liberty International Airport to Seattle-Tacoma International Airport?

Check the schedule for flights from New York to Seattle and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS373

    Newark Liberty International Airport

    09:30

    EWR

    6h 5m

    12:35

    SEA

    S M T W T F S
    Search

  2. AS299

    Newark Liberty International Airport

    17:41

    EWR

    6h 19m

    21:00

    SEA

    S M T W T F S
    Search

  3. AA7515

    Newark Liberty International Airport

    07:00

    EWR

    6h 27m

    10:27

    SEA

    S M T W T F S
    Search

  4. AS296

    Newark Liberty International Airport

    17:43

    EWR

    6h 15m

    20:58

    SEA

    S M T W T F S
    Search

  5. AS356

    Newark Liberty International Airport

    17:05

    EWR

    6h 18m

    20:23

    SEA

    S M T W T F S
    Search

  6. AS462

    Newark Liberty International Airport

    18:05

    EWR

    6h 25m

    21:30

    SEA

    - M T W - F S
    Search

  7. DL2895

    Newark Liberty International Airport

    15:00

    EWR

    2h 55m

    Direct

    16:55

    MSP

    S M T W T - S
    Search

  8. DL881

    Minneapolis-Saint Paul International Airport

    18:25

    MSP

    4h 2m

    Direct

    20:27

    SEA

    S M T W T F S

  9. DL2312

    Newark Liberty International Airport

    17:30

    EWR

    2h 35m

    Direct

    20:05

    ATL

    S M T W T F S
    Search

  10. DL714

    Hartsfield–Jackson Atlanta International Airport

    18:10

    ATL

    5h 36m

    Direct

    20:46

    SEA

    S M T W T F S

  11. UA1525

    Newark Liberty International Airport

    10:22

    EWR

    2h 38m

    Direct

    12:00

    ORD

    S M T W T F S
    Search

  12. UA1801

    O'Hare International Airport

    16:15

    ORD

    4h 44m

    Direct

    18:59

    SEA

    S M T W T F S

  13. DL2365

    Newark Liberty International Airport

    08:00

    EWR

    2h 33m

    Direct

    10:33

    ATL

    S M T W T F S
    Search

  14. DL481

    Hartsfield–Jackson Atlanta International Airport

    14:00

    ATL

    5h 35m

    Direct

    16:35

    SEA

    S M T W T F S
Find more flights and airlines

About Newark Liberty International Airport and Seattle-Tacoma International Airport

Learn about Newark Liberty International Airport (EWR) and Seattle-Tacoma International Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 3,858.09km
Cheapest one-way ticket price €100
Cheapest return ticket price €275

FAQs for Newark Liberty International Airport to Seattle-Tacoma International Airport Flights

  • How long is the flight from Newark Liberty International Airport to Seattle-Tacoma International Airport?

    Newark Liberty International Airport to Seattle-Tacoma International Airport takes about 5 hours 31 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 5 daily flights from Newark Liberty International Airport (EWR) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Newark Liberty International Airport to Seattle-Tacoma International Airport departs at 07:20, and the last departs at 20:25, with about 8 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Newark Liberty International Airport (EWR) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around €341 in September, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • United Airlines is a very popular airline operating an average of 4468 flights per month.
  • One-way flights from Newark Liberty International Airport to Seattle-Tacoma International Airport currently start from €100, and round-trip fares start from €275. The current lowest fare is a Alaska Airlines flight departing on Sun, Nov 15; prices may vary depending on availability.
  • Yes. United Airlines and Alaska Airlines operate direct flights from Newark Liberty International Airport to Seattle-Tacoma International Airport, with an average flight time of 5 hours 33 minutes, and around 46 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Newark Liberty International Airport to Seattle-Tacoma International Airport is €231. Prices may vary depending on the departure date, airline, and availability.
  • Newark Liberty International Airport to Seattle-Tacoma International Airport operates around 41 weekly flights, mainly by United Airlines and Alaska Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Newark Liberty International Airport and Seattle-Tacoma International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Prices displayed on this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within the last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

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Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.