SEA - EWR

C$ 153 Find Cheap Flights from Seattle to Newark Liberty Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Newark departing on 19/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Newark Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Newark, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Newark, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 305
Typical prices: C$ 373-C$ 716
Alaska Airlines
Mon 2/2Tue 10/2
SEA - EWR • Direct
Cheapest one-way flights
C$ 153
Typical prices: C$ 211-C$ 486
United Airlines
Mon 19/1
SEA - EWR • Direct
Our travellers' advice
AI-generated summary based on content written by travel experts
United's Economy Plus offers extra legroom on this route.
Use SEA Spot Saver for faster security at Seattle.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Alaska Airlines
Cheapest • from C$ 305 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 28% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Newark!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to Newark (SEA-EWR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Newark that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Newark

Mon, 2 Feb - Tue, 10 Feb
Alaska Airlines Logo
10:09 a.m. - 6:24 p.m.SEA-EWR
5h 15mdirect
Alaska Airlines Logo
6:08 p.m. - 9:28 p.m.EWR-SEA
6h 20mdirect
C$ 305Alaska Airlines
Find Deal
Mon, 5 Jan - Fri, 16 Jan
Alaska Airlines Logo
6:04 a.m. - 2:29 p.m.SEA-EWR
5h 25mdirect
Alaska Airlines Logo
6:08 p.m. - 9:28 p.m.EWR-SEA
6h 20mdirect
C$ 306Alaska Airlines
Find Deal
Tue, 3 Mar - Sat, 7 Mar
Alaska Airlines Logo
10:09 a.m. - 6:28 p.m.SEA-EWR
5h 19mdirect
Alaska Airlines Logo
7:29 p.m. - 10:54 p.m.EWR-SEA
6h 25mdirect
C$ 307Alaska Airlines
Find Deal
Tue, 10 Feb - Tue, 17 Feb
Alaska Airlines Logo
5:59 p.m. - 3:29 p.m.SEA-EWR
18h 30m1 stop
Alaska Airlines Logo
7:29 p.m. - 10:54 p.m.EWR-SEA
6h 25mdirect
C$ 310Alaska Airlines
Find Deal
Thu, 8 Jan - Fri, 16 Jan
United Airlines Logo
8:40 a.m. - 7:17 p.m.SEA-EWR
7h 37m1 stop
United Airlines Logo
7:45 a.m. - 11:07 a.m.EWR-SEA
6h 22mdirect
C$ 313United Airlines
Find Deal
Fri, 20 Feb - Wed, 25 Feb
Alaska Airlines Logo
9:40 p.m. - 6:59 p.m.SEA-EWR
18h 19m1 stop
Alaska Airlines Logo
5:30 p.m. - 7:04 a.m.EWR-SEA
16h 34m1 stop
C$ 314Alaska Airlines
Find Deal
Fri, 12 Dec - Fri, 12 Dec
Alaska Airlines Logo
6:06 a.m. - 2:29 p.m.SEA-EWR
5h 23mdirect
Alaska Airlines Logo
5:30 p.m. - 10:45 p.m.EWR-SEA
8h 15m1 stop
C$ 317Alaska Airlines
Find Deal
Wed, 7 Jan - Sun, 25 Jan
United Airlines Logo
12:25 p.m. - 11:30 p.m.SEA-EWR
8h 05m1 stop
United Airlines Logo
7:45 a.m. - 11:07 a.m.EWR-SEA
6h 22mdirect
C$ 319United Airlines
Find Deal
Mon, 5 Jan - Thu, 8 Jan
Alaska Airlines Logo
9:58 p.m. - 6:59 p.m.SEA-EWR
18h 01m1 stop
Alaska Airlines Logo
6:08 p.m. - 9:28 p.m.EWR-SEA
6h 20mdirect
C$ 320Alaska Airlines
Find Deal
Wed, 4 Mar - Sat, 7 Mar
Alaska Airlines Logo
7:45 a.m. - 6:59 p.m.SEA-EWR
8h 14m1 stop
Alaska Airlines Logo
7:29 p.m. - 10:54 p.m.EWR-SEA
6h 25mdirect
C$ 321Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Newark flights

Get data-powered insights and trends into flights from Seattle to Newark to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Newark Airport departing in February.

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

The average price of all round-trip flights from Seattle to Newark Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Newark Liberty Airport on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Seattle to Newark Liberty Airport. For your return ticket, we recommend flying on a Friday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Newark Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Newark Airport is October, where tickets cost C$ 413 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is C$ 762 and C$ 731 respectively.

Can I save money by flying with a layover from Seattle to Newark Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 613 on average.

How far in advance should I book a flight from Seattle to Newark Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Newark Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Newark Airport, you should book around 3 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Newark

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United's Economy Plus offers up to 15 cm more legroom than standard economy seats.


United's Priority Boarding puts you in Zone 2, avoiding gate-checking your carry-on bag.

Alaska Airlines

Alaska Airlines' 20-minute baggage guarantee offers a discount or 2,500 bonus miles if delayed.


Alaska's Premium Class offers priority boarding, extra legroom, and complimentary drinks on flights over 350 miles.

Airports
SEA

Use the SEA Spot Saver for expedited security screening. Book online or via the flySEA app for free access to dedicated lanes.

EWR

For a quick trip to NYC, take the AirTrain to Newark Liberty Station, then NJ Transit to New York Penn Station.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and EWR

Stefanie Waldek

Stefanie Waldek

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
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet Baskas

Harriet Baskas

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

Good to know

Low seasonFebruary
Cheapest flightC$ 153
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (33% more expensive on average)
Flight from Seattle to Newark Liberty Airport

When to book flights from Seattle to Newark

Are your dates flexible? Find out the best times to travel from Seattle to Newark based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seattle to Newark Liberty Airport flights

  • What is the cheapest flight from Seattle to Newark Airport?

    In the last 3 days, the lowest price for a flight from Seattle to Newark Airport was C$ 153 for a one-way ticket and C$ 305 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Newark Liberty Airport?

    All the following airlines offer inflight Wi-Fi service on the Seattle to Newark Liberty Airport flight route: Alaska Airlines, JetBlue, Hawaiian Airlines, American Airlines, Delta, and KLM.

  • Which aircraft models fly most regularly from Seattle to Newark Liberty Airport?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Seattle to Newark Liberty Airport flight route.

  • Which airline alliances offer flights from Seattle to Newark Liberty Airport?

    oneworld is the only airline alliance operating flights between Seattle and Newark Liberty Airport.

  • On which days can I fly direct from Seattle to Newark Liberty Airport?

    There are direct flights from Seattle to Newark Liberty Airport on a daily basis.

  • Which is the best airline for flights from Seattle to Newark, Alaska Airlines or Hawaiian Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Newark are Alaska Airlines and Hawaiian Airlines. With an average price for the route of C$ 465 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Hawaiian Airlines is also a great choice for the route, with an average price of C$ 613 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Seattle to Newark Liberty Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Newark Liberty Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Newark Liberty Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Newark Liberty Airport from Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Newark Liberty Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Newark Liberty Airport with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Newark Liberty Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Newark Liberty Airport from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Newark Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 219 or less one-way and C$ 2,548 or less round-trip.

Prefer to fly direct from Seattle to Newark Liberty Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Newark.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Newark Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

Reviews of the top airlines flying from Seattle to Newark

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Newark. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Newark? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11374 reviews
7.8Comfort
7.1Food
8.5Crew
8.1Boarding
7.0Entertainment
Airline reviews

We flew economy, it was what I expected. The seats are too upright for me

10.0 ExcellentAnonymous, Nov 2025SEA - SMF
Read more Alaska Airlines reviews

We flew economy, it was what I expected. The seats are too upright for me

I purchased a 1st class ticket and unfortunately the main flight attendant was not the best and seemed more interested in her phone than the passengers at times. Then the plane didn’t get restocked and the only snacks for this flight were pretzels. However I would like to say that the rest of the flight crew and ground crew at the airport we’re great, especially the people that wheeled me around the airport some and then the one getting me to the plane and the automated wheelchair that wheeled me through the airport.

Typical domestic flight. No entertainment. You have to use your own devices and provided entertainment didn’t work. Pretzels and water of flight over 4 hours is unacceptable. Meals should be provided on long flights. But it’s about the money and not customer service. You should just issue the bag of pretzels at the gate and water bottle in seat and just do away with flight attendants because they do nothing on domestic flights

Very good. Easy check in, attentive flight attendant, and on time departure/landing.

Again Alaskan and Hawaiian need to consolidate check-in, allow seat reservations on both flights. I wound up in last row because I couldn’t reserve better seat.

I would like if it had happened already. I'm still waiting for it.

Pretzels are always a disappointment. Cheezits, Sun Chips, trail mix, anything else would be nice.

Its bumpy but I can say its safe flight ,Thanks Alaska airline for bringing me in my destination😊.

Almost 3 hr delay in Settle with very little information available to passengers. They boarded the plane and we waited for a long time inside the plane as well.

This was our first time flying with Alaska. It was a seamless experience, with comfortable seats and leg room. Staff were friendly and helpful.

Delayed and cancelled flights were hard and very stressful, both ways!

The crew was quite good, they came by often with drinks or to collect trash. But what wasn't nice was the flight was over weigh and several people had to be rebooked. I was questioned whether I should have a seat when I was getting to it. The in-flight entertainment kept buffering and interrupting. And the route took the airplane through high winds which caused us a longer flight

Wasn’t on the flight due to Alaska cancellation…also after all the rerouting, I was going to be on a later flight that left SFO at 7:47pm, which meant an almost 6 hour layover. That same Hawaiian flight was delayed for another 2hours.

I had to cancel the flight because with a 3 hour delay for 'unexpected maintenance' in getting to LAX, I couldn't connect to an overseas flight that I had booked on Scandinavian Air.

The flight was CANCELED!!! Can’t get much more “poor” than that. I had to switch to American Airlines, add another layover and got home in Honolulu 4 hours later than I was supposed to be home. One bright spot was Josh with Alaska Airlines at SFO. He got me on a United Flight that got me home a few hours before I would have. Without him I would have gotten home almost 7 hours after my originally scheduled flight.

Canceled my flight within 24 hours, causing me arriving home midnight. Will never book Hawaiian airlines anymore

I like Hawaiian, it was great that they had good internet connection across the Pacific Ocean, thanks to Star Link satellites. The seating was comfortable, ( I was in economy ). Maybe I missed it, but I only got offered a beverage once. It was a nonstop flight KOA to SMF. I would take it again next time I go that way.

I always love flying Hawaii and I have nothing to add

Previously flown Hawaiian Airlines on similar routes, I found Alaska Airlines to be noticeably more comfortable. The seats on Alaska Airlines provided better support and cushioning, which made a significant difference on the long flight to the islands. When you’re spending 5-6 hours in the air, seat comfort really matters, and Alaska Airlines delivered where it counts. After comparing both carriers, I’ve decided to book with Alaska Airlines for all my future Hawaii trips. The superior seat comfort alone makes it worth choosing Alaska over Hawaiian Airlines. If you’re planning a trip to Hawaii and prioritizing comfort, I’d recommend giving Alaska Airlines a try. You won’t be disappointed. Highly recommended for Hawaii travel!

I received several emails about my 3:10 flight. When I showed up to the airport at 12:30 to check my bags I was told the flight was actually at 1 pm. They grudgingly rebooked me for a flight at 5:22 to Vegas to get a connecting to LAX. I did find the gate for my original 3:10 flight but they were booked. I proceeded to receive status updates and gate change information for the 3:10 flight, even though I was apparently never supposed to be on that flight

Everything you need to know for your flight from Seattle to Newark

Information on your arrival and departure airports