EWR - SEA

C$ 243 Find Cheap Flights from Newark Liberty Airport to Seattle – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 471
Typical prices: C$ 476-C$ 811
United Airlines
Wed 14/11Sun 18/11
EWR - SEA • Direct
Cheapest one-way flights
C$ 243
Typical prices: C$ 287-C$ 499
United Airlines
Sat 15/12
EWR - SEA • Direct
Advice from real travellers
United Economy Plus adds up to 15 cm more legroom; Priority Boarding helps bin space.
Alaska Premium Class adds drinks and legroom; one user found a free checked bag.
Expert advice
+1
Expert advice
+1
Direct flights
Every day
You can fly direct with Alaska Airlines and United Airlines. Average duration is 6h 21m
Direct flights
+1
Direct flights
+1
Avoid delays
Alaska Airlines
Most punctual • 82% on-time
Morning
Best time • Fewest delays
Insights
Insights
When to book
26 weeks
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 31% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
San Francisco (SFO)
Cheapest • Avg C$ 399 (round-trip)
Detroit Metropolitan Wayne County (DTW)
Shortest trip • 7h 12m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Newark to Seattle (EWR-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Newark to Seattle

Sat, 14 Nov - Wed, 18 Nov
United Airlines Logo
6:47 p.m. - 10:11 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
6h 24mdirect
United Airlines Logo
11:15 p.m. - 7:21 a.m.SEA  Seattle/Tacoma Intl-EWR Newark
5h 06mdirect
C$ 471United Airlines
Wed, 18 Nov - Fri, 4 Dec
Alaska Airlines Logo
6:29 p.m. - 9:45 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
6h 16mdirect
Alaska Airlines Logo
3:44 p.m. - 11:59 p.m.SEA  Seattle/Tacoma Intl-EWR Newark
5h 15mdirect
C$ 478Alaska Airlines
Tue, 10 Nov - Wed, 11 Nov
United Airlines Logo
6:25 p.m. - 9:49 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
6h 24mdirect
United Airlines Logo
8:30 a.m. - 8:00 p.m.SEA  Seattle/Tacoma Intl-EWR Newark
8h 30m1 stop Denver Intl
C$ 480United Airlines
Wed, 16 Dec - Wed, 6 Jan
United Airlines Logo
7:05 p.m. - 10:30 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
6h 25mdirect
United Airlines Logo
10:50 p.m. - 7:01 a.m.SEA  Seattle/Tacoma Intl-EWR Newark
5h 11mdirect
C$ 481United Airlines
Sun, 10 Jan - Wed, 20 Jan
Alaska Airlines Logo
4:48 p.m. - 8:03 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
6h 15mdirect
Alaska Airlines Logo
10:40 p.m. - 6:53 a.m.SEA  Seattle/Tacoma Intl-EWR Newark
5h 13mdirect
C$ 484Alaska Airlines
Sat, 5 Dec - Sun, 6 Dec
Alaska Airlines Logo
9:00 a.m. - 12:29 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
6h 29mdirect
Alaska Airlines Logo
6:00 a.m. - 2:20 p.m.SEA  Seattle/Tacoma Intl-EWR Newark
5h 20mdirect
C$ 485Alaska Airlines
Sat, 6 Feb - Tue, 9 Feb
Alaska Airlines Logo
4:48 p.m. - 8:03 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
6h 15mdirect
Alaska Airlines Logo
9:05 a.m. - 5:19 p.m.SEA  Seattle/Tacoma Intl-EWR Newark
5h 14mdirect
C$ 487Alaska Airlines
Wed, 18 Nov - Wed, 2 Dec
Alaska Airlines Logo
7:06 a.m. - 3:04 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
10h 58m1 stop Los Angeles
Alaska Airlines Logo
3:44 p.m. - 11:59 p.m.SEA  Seattle/Tacoma Intl-EWR Newark
5h 15mdirect
C$ 492Alaska Airlines
Thu, 19 Nov - Sat, 5 Dec
Delta Logo
6:50 a.m. - 12:40 p.m.EWR  Newark-SEA Seattle/Tacoma Intl
8h 50m1 stop Salt Lake City
Delta Logo
11:59 p.m. - 10:39 a.m.SEA  Seattle/Tacoma Intl-EWR Newark
7h 40m1 stop Atlanta Hartsfield-Jackson
C$ 494Delta
Wed, 16 Dec - Fri, 25 Dec
Alaska Airlines Logo
7:00 a.m. - 10:26 a.m.EWR  Newark-SEA Seattle/Tacoma Intl
6h 26mdirect
Alaska Airlines Logo
10:12 p.m. - 6:39 a.m.SEA  Seattle/Tacoma Intl-EWR Newark
5h 27mdirect
C$ 495Alaska Airlines
Booking Insights

Price, demand, and travel trends for Newark Airport to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Newark Airport to Seattle?

Round-trip flights from Newark Airport to Seattle typically range from C$ 476 to C$ 811. The lowest price found in the past 5 days was C$ 471, on United Airlines.

What's the cheapest day of the week to fly from Newark Airport to Seattle?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Newark Airport to Seattle. It's 8% cheaper than the average day, while Sunday is the most expensive, with prices 9% higher.

What is the cheapest month to fly from Newark Airport to Seattle?

•January is the cheapest month to fly from Newark Airport to Seattle at C$ 435 round-trip.
•August (C$ 827) and July (C$ 747) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 90% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Newark Airport to Seattle the cheapest?

Flights from Newark Airport to Seattle are cheapest 26 weeks before departure. Booking in this window typically costs about 27% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Expert advice

Expert advice for your flight from Newark to Seattle

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and EWR

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Key details for Newark Airport to Seattle flights

Low season

October

Cheapest flight

C$ 243
Beat the crowds with an average 29% drop in traveller numbers.
The most popular month to fly with an average 45% increase in traveller numbers.
One-way flight from Newark Airport to Seattle

When to book flights from Newark to Seattle

Are your dates flexible? Find out the best times to travel from Newark to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Newark to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Newark to Seattle 
Verified travelerFlew with Alaska Airlines-Sep 2024
Buy something in the airport to eat before boarding as its a long flight and the snacks are not enough unless you plan to sleep the whole ride.
KatieFlew with Alaska Airlines-Jun 2024
Alaska Airlines offered free checked bag and personal bag with ticket price which I found to be very reasonable. Of the other airlines I found Alaska Airlines to be most comfortable, have friendly and efficient staff and reasonable pricing. Newark airport is rather easy to navigate given its size. We found Seattle airport to be a bit difficult to navigate, especially when returning a rental. Customers in this instance should allow extra time for the car return, bus to the terminal and navigating through the airport which included several monorails to get to our boarding terminal and through security to the gate. Signage for security was confusing we needed to ask for direction and restaurants were limited and short staffed once through security. As long as you allow for extra time, we found it to be relatively painless.

Your Newark Airport to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Newark Airport to Seattle?

    These are the earliest and latest flight times available from Newark Airport to Seattle:

    • Earliest: departs at 7:00 am and lands at 1:21 pm
    • Latest: departs at 8:08 pm and lands at 2:29 am.

    The flight takes about 6h 21m.

  • Which cabin classes can I book on flights from Newark Airport to Seattle?

    Only Economy Class is available on flights from Newark Airport to Seattle.

  • How long does a flight from Newark Airport to Seattle take?

    A direct flight from Newark Airport to Seattle takes 6h 21m, covering 6,198 km.

  • Do I need a passport to fly from Newark Airport to Seattle?

    No, a passport is not required for this domestic route, but you will need another form of identification, such as a driver's licence.

  • How much should I expect to pay for a Newark Airport to Seattle flight?

    Round-trip flights from Newark Airport to Seattle range from C$ 476 to C$ 811, with an average of C$ 633 over the past 12 months. Anything below C$ 476 counts as a good deal.

  • How expensive are last-minute Newark Airport to Seattle flights?

    Last-minute fares on this route (booked within two weeks of departure) run 19% above the C$ 633 route average. Book 26 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Newark Airport to Seattle?

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 399 round-trip via San Francisco (SFO), compared to C$ 643 for direct.

  • What is the standard checked bag allowance on flights from Newark Airport to Seattle?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 56–C$ 140 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Newark Airport to Seattle?

    The Boeing 737 MAX 9 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • How are flight departures from Newark Airport to Seattle spread across the day?

    Morning is the busiest departure period on Newark Airport to Seattle flights, with 40% leaving in that window. Evening departures account for 40%, Afternoon flights for 20%, and Night flights for 0%.

  • Have flight prices from Newark Airport to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 471 to C$ 3,431. That means the highest observed fare was about 7x higher than the lowest one.

  • Which airlines offer Wi-Fi on Newark Airport to Seattle flights?

    Two airlines offer in-flight Wi-Fi on Newark Airport to Seattle flights:

    • Alaska Airlines
    • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

  • How are flight prices from Newark Airport to Seattle looking right now?

    One-way fares from Newark Airport to Seattle are currently lower than usual. Average one-way flight prices are about C$ 266, which is 34% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging C$ 86 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • Which airports can I use when flying from Newark Airport to Seattle?

    Flights from Newark Airport to Seattle usually depart from Newark (EWR) and arrive at Seattle/Tacoma Intl (SEA).

  • What time of day has the fewest delays on flights from Newark Airport to Seattle?

    Morning flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed on the route from Newark Airport to Seattle?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Newark Airport to Seattle route, 18% of flights were delayed in the past three months, with delays averaging 2h 49m.

  • Which airports do connecting flights from Newark Airport to Seattle pass through?

    One-stop flights from Newark Airport to Seattle most commonly connect through:

    • Chicago O'Hare Intl (ORD) – 30% of one-stop connections
    • Minneapolis St Paul (MSP) – 28% of one-stop connections
    • Portland (PDX) – 22% of one-stop connections
    • Salt Lake City (SLC) – 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Newark Airport to Seattle?

    Yes. Flexible dates can save you up to 16% on flights from Newark Airport to Seattle. Wednesday is the cheapest departure day at C$ 583 round-trip on average, while Sunday is the most expensive at C$ 692, a difference of C$ 109.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Newark Airport to Seattle?

    2 airlines operate flights between Newark Airport and Seattle. The airlines offering direct flights on this route include:

    • Alaska Airlines
    • United Airlines

  • How much time can I save by choosing a different layover airport when travelling from Newark Airport to Seattle?

    Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 7h 12m, compared with 8h 05m via Denver Intl (DEN) and 8h 20m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Newark Airport and Seattle?

    Seattle is 3 hours behind Newark Airport (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Lumen Field, T-Mobile Park, and Seattle Waterfront. These are among the most viewed places in Seattle on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Newark Airport to Seattle flights?

    Among airlines operating Newark Airport to Seattle flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Newark Airport to Seattle flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a carry-on bag and a checked bag in Economy Class
    • United Airlines: a carry-on bag and a checked bag in Economy Class
    • Hawaiian Airlines: a cabin bag in Economy Class class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Newark Airport to Seattle flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average C$ 583, about C$ 109 less than Sunday fares (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 27% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Newark Airport to Seattle trip for January. Fares historically average C$ 435 round-trip in that month – typically C$ 392 less than the most expensive month, which is August (based on the last 12 months).
  • For the best chance of arriving on time, fly with Alaska Airlines. Over the past three months, 82% of Alaska Airlines flights from Newark Airport to Seattle arrived on time, slightly above the route average of 82%. When flights on this route arrive late, they're delayed by an average of 2h 49m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through San Francisco Airport (SFO) can be cheaper than flying direct. The cheapest layover option averages C$ 399 round-trip on this route – about C$ 244 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

Prefer to fly direct from Newark Liberty Airport to Seattle?

 
Find which airlines fly direct from Newark Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Newark to Seattle/Tacoma Intl

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more nonstop flights

Direct returns

Seattle/Tacoma Intl to Newark

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more nonstop flights

More options for your flight from Newark to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Car rentals in Seattle
Hotels in Seattle
Vacations in Seattle