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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 KRW 187,200 and round-trip from KRW 408,100. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        EWR 07:03
        6h 12m
        Nonstop
        SEA 10:15
        New York - Seattle | Sun, Nov 1 | Alaska Airlines
        SEA 22:40
        5h 19m
        Nonstop
        EWR 06:59
        Seattle - New York | Tue, Nov 3 | Alaska Airlines
        KRW 427,500 KRW 583,200
        27% off
        27% off
        KRW 583,200 KRW 427,500
      • EWR 07:03
        6h 12m
        Nonstop
        SEA 10:15
        New York - Seattle | Sun, Oct 11 | Alaska Airlines
        SEA 22:40
        5h 19m
        Nonstop
        EWR 06:59
        Seattle - New York | Tue, Oct 13 | Alaska Airlines
        KRW 433,000 KRW 583,200
        26% off
        26% off
        KRW 583,200 KRW 433,000
      • EWR 15:29
        6h 16m
        Nonstop
        SEA 18:45
        New York - Seattle | Sat, Nov 14 | Alaska Airlines
        SEA 15:41
        5h 18m
        Nonstop
        EWR 23:59
        Seattle - New York | Mon, Nov 16 | Alaska Airlines
        KRW 447,000 KRW 583,200
        23% off
        23% off
        KRW 583,200 KRW 447,000
      • EWR 07:03
        6h 12m
        Nonstop
        SEA 10:15
        New York - Seattle | Fri, Oct 30 | Alaska Airlines
        SEA 09:58
        5h 31m
        Nonstop
        EWR 18:29
        Seattle - New York | Wed, Nov 4 | Alaska Airlines
        KRW 449,000
        23% off
        KRW 583,200 KRW 449,000
      • EWR 18:29
        6h 16m
        Nonstop
        SEA 21:45
        New York - Seattle | Thu, Nov 19 | Alaska Airlines
        SEA 13:05
        7h 5m
        1 stop
        LGA 23:10
        Seattle - New York | Sun, Nov 22 |
        KRW 408,100
        30% off
        KRW 583,200 KRW 408,100
      • EWR 07:20
        6h 2m
        Nonstop
        SEA 10:22
        New York - Seattle | Wed, Sep 30 | Alaska Airlines
        SEA 10:04
        10h 25m
        1 stop
        EWR 23:29
        Seattle - New York | Fri, Oct 2 | Alaska Airlines
        KRW 425,400
        27% off
        KRW 583,200 KRW 425,400
      • EWR 06:50
        9h
        1 stop
        SEA 12:50
        New York - Seattle | Mon, Sep 28 | Alaska Airlines
        SEA 22:01
        5h 29m
        Nonstop
        EWR 06:30
        Seattle - New York | Wed, Sep 30 | Alaska Airlines
        KRW 433,600
        26% off
        KRW 583,200 KRW 433,600
      • EWR 16:59
        8h 11m
        1 stop
        SEA 22:10
        New York - Seattle | Wed, Sep 30 | Delta Air Lines
        SEA 10:04
        10h 25m
        1 stop
        EWR 23:29
        Seattle - New York | Fri, Oct 2 | Alaska Airlines
        KRW 434,000
        26% off
        KRW 583,200 KRW 434,000
      • EWR 07:04
        10h 46m
        1 stop
        SEA 14:50
        New York - Seattle | Sun, Nov 1 | Delta Air Lines
        SEA 23:59
        9h 31m
        1 stop
        EWR 12:30
        Seattle - New York | Tue, Nov 3 | Delta Air Lines
        KRW 441,900
        24% off
        KRW 583,200 KRW 441,900
      • EWR 06:30
        8h 35m
        1 stop
        SEA 12:05
        New York - Seattle | Fri, Nov 6 | Alaska Airlines
        SEA 15:41
        5h 18m
        Nonstop
        EWR 23:59
        Seattle - New York | Mon, Nov 9 | Alaska Airlines
        KRW 442,100
        24% off
        KRW 583,200 KRW 442,100
      • EWR 06:30
        8h 35m
        1 stop
        SEA 12:05
        New York - Seattle | Wed, Nov 4 | Alaska Airlines
        SEA 06:00
        5h 29m
        Nonstop
        EWR 14:29
        Seattle - New York | Tue, Nov 10 | Alaska Airlines
        KRW 442,100
        24% off
        KRW 583,200 KRW 442,100
      • EWR 07:03
        6h 12m
        Nonstop
        SEA 10:15
        New York - Seattle | Wed, Oct 28 | Alaska Airlines
        SEA 09:59
        9h 30m
        1 stop
        JFK 22:29
        Seattle - New York | Wed, Nov 4 | Alaska Airlines
        KRW 447,000
        23% off
        KRW 583,200 KRW 447,000
      • NYC 13:00
        17h 25m
        1 stop
        SEA 14:00
        New York - Seattle | Sun, Sep 27 | Normal Airline
        SEA 15:00
        6h
        Nonstop
        NYC 16:00
        Seattle - New York | Tue, Sep 29 | Normal Airline
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      • Cheapest nonstop
        EWR 19:25
        6h 8m
        Nonstop
        SEA 22:33
        New York - Seattle | Fri, Nov 13 | Alaska Airlines
        KRW 187,200 KRW 286,300
        35% off
        35% off
        KRW 286,300 KRW 187,200
      • EWR 07:20
        6h 2m
        Nonstop
        SEA 10:22
        New York - Seattle | Sat, Oct 3 | Alaska Airlines
        KRW 198,600 KRW 286,300
        31% off
        31% off
        KRW 286,300 KRW 198,600
      • EWR 09:00
        6h 2m
        Nonstop
        SEA 12:02
        New York - Seattle | Wed, Sep 30 | Alaska Airlines
        KRW 198,600 KRW 286,300
        31% off
        31% off
        KRW 286,300 KRW 198,600
      • EWR 07:03
        6h 12m
        Nonstop
        SEA 10:15
        New York - Seattle | Tue, Nov 3 | Alaska Airlines
        KRW 204,900
        28% off
        KRW 286,300 KRW 204,900
      • EWR 09:03
        6h 5m
        Nonstop
        SEA 12:08
        New York - Seattle | Wed, Nov 4 | Alaska Airlines
        KRW 210,200
        27% off
        KRW 286,300 KRW 210,200
      • EWR 07:03
        6h 12m
        Nonstop
        SEA 10:15
        New York - Seattle | Wed, Oct 28 | Alaska Airlines
        KRW 214,900
        25% off
        KRW 286,300 KRW 214,900
      • EWR 09:00
        6h 2m
        Nonstop
        SEA 12:02
        New York - Seattle | Thu, Oct 1 | Alaska Airlines
        KRW 217,900
        24% off
        KRW 286,300 KRW 217,900
      • EWR 09:30
        6h 17m
        Nonstop
        SEA 12:47
        New York - Seattle | Tue, Nov 17 | Alaska Airlines
        KRW 220,400
        23% off
        KRW 286,300 KRW 220,400
      • EWR 15:20
        11h 39m
        1 stop
        SEA 23:59
        New York - Seattle | Wed, Sep 30 | Delta Air Lines
        KRW 212,200
        26% off
        KRW 286,300 KRW 212,200
      • EWR 17:59
        9h
        1 stop
        SEA 23:59
        New York - Seattle | Sat, Oct 3 | Delta Air Lines
        KRW 212,200
        26% off
        KRW 286,300 KRW 212,200
      • EWR 06:30
        8h 35m
        1 stop
        SEA 12:05
        New York - Seattle | Sat, Nov 7 | Alaska Airlines
        KRW 215,500
        25% off
        KRW 286,300 KRW 215,500
      • EWR 15:18
        9h 45m
        1 stop
        SEA 22:03
        New York - Seattle | Wed, Oct 28 | Delta Air Lines
        KRW 219,400
        23% off
        KRW 286,300 KRW 219,400
      • NYC 13:00
        17h 25m
        1 stop
        SEA 14:00
        New York - Seattle | Sun, Sep 27 | Normal Airline
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Displayed flight fares from Newark Liberty International Airport to Seattle-Tacoma International Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

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

What is the cheapest month for one-way flights from Newark Liberty International Airport to Seattle-Tacoma International Airport?

Data is based on average one-way flight prices from Newark Liberty International Airport to Seattle-Tacoma International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Newark Liberty International Airport to Seattle-Tacoma International Airport, the best time to buy is in October, with an average price of KRW 221,500. You’ll want to avoid July, when the average price can reach as high as KRW 462,900.

KRW 462,900
KRW 342,200
KRW 221,500
KRW 100,800
    Cheapest
  • KRW 240,900
    Sep
  • KRW 221,500
    Oct
  • KRW 299,800
    Nov
  • KRW 446,300
    Dec
  • KRW 318,300
    Jan
  • KRW 321,000
    Feb
  • KRW 278,300
    Mar
  • KRW 314,500
    Apr
  • KRW 329,300
    May
  • KRW 388,000
    Jun
  • KRW 462,900
    Jul
  • KRW 391,800
    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 day to depart from Newark Liberty International Airport to Seattle-Tacoma International Airport is Wednesday, with average fares typically lower than other days. You’ll want to avoid flying on Monday, as ticket prices are usually the highest that day.

KRW 418,500
KRW 364,400
KRW 310,300
KRW 256,200
    Cheapest
  • KRW 418,500
    Mon
  • KRW 312,700
    Tue
  • KRW 310,300
    Wed
  • KRW 325,000
    Thu
  • KRW 320,200
    Fri
  • KRW 357,200
    Sat
  • KRW 412,400
    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 KRW 187,200) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From KRW 187,200
Delta Air Lines
From KRW 212,200
American Airlines
From KRW 227,900
United Airlines
From KRW 276,400
Sun Country Airlines
From KRW 324,200
Frontier Airlines
From KRW 328,100
Air Canada
From KRW 545,800

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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. AS299

    Newark Liberty International Airport

    17:41

    EWR

    6h 19m

    21:00

    SEA

    S M T W T F S
    Search

  2. AA7515

    Newark Liberty International Airport

    07:00

    EWR

    6h 27m

    10:27

    SEA

    S M T W T F S
    Search

  3. AS296

    Newark Liberty International Airport

    17:43

    EWR

    6h 15m

    20:58

    SEA

    S M T W T F S
    Search

  4. AS356

    Newark Liberty International Airport

    17:05

    EWR

    6h 18m

    20:23

    SEA

    S M T W T F S
    Search

  5. AS462

    Newark Liberty International Airport

    18:05

    EWR

    6h 25m

    21:30

    SEA

    - M T W - F S
    Search

  6. AS373

    Newark Liberty International Airport

    09:30

    EWR

    6h 5m

    12:35

    SEA

    S M T W T F S
    Search

  7. AA1691

    Newark Liberty International Airport

    14:20

    EWR

    2h 52m

    Nonstop

    16:12

    ORD

    S M T W T F S
    Search

  8. AA3105

    O'Hare International Airport

    07:17

    ORD

    4h 52m

    Nonstop

    10:09

    SEA

    S M T W T F S

  9. DL2312

    Newark Liberty International Airport

    17:30

    EWR

    2h 35m

    Nonstop

    20:05

    ATL

    S M T W T F S
    Search

  10. DL714

    Hartsfield–Jackson Atlanta International Airport

    18:10

    ATL

    5h 36m

    Nonstop

    20:46

    SEA

    S M T W T F S

  11. UA1525

    Newark Liberty International Airport

    10:22

    EWR

    2h 38m

    Nonstop

    12:00

    ORD

    S M T W T F S
    Search

  12. UA1801

    O'Hare International Airport

    16:15

    ORD

    4h 44m

    Nonstop

    18:59

    SEA

    S M T W T F S

  13. DL2365

    Newark Liberty International Airport

    08:00

    EWR

    2h 33m

    Nonstop

    10:33

    ATL

    S M T W T F S
    Search

  14. DL481

    Hartsfield–Jackson Atlanta International Airport

    14:00

    ATL

    5h 35m

    Nonstop

    16:35

    SEA

    S M T W T F S
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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 3,858.09 km
Cheapest one-way ticket price KRW 187,200
Cheapest return ticket price KRW 408,100

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 KRW 528,900 in September, the most expensive month to book this route.
  • The earliest flight departs from Newark Liberty International Airport (EWR) at 07:19 and arrives in Seattle-Tacoma International Airport (SEA) at 10:20.
  • The latest flight departs from Newark Liberty International Airport (EWR) at 19:29 and arrives in Seattle-Tacoma International Airport (SEA) at 22:39.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km, 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 KRW 187,200, and round-trip fares start from KRW 408,100. The current lowest fare is a Alaska Airlines flight departing on Fri, Nov 13; 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 KRW 358,900. 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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