Which airline has the best punctuality record on Newark to Seattle flights?

According to our data, Sun Country Air has had the lowest number of delays on this route over the last 12 months, with no flights being classified as delayed.

How many flights depart from Newark Airport to Seattle on average per day?

The number of flights available between Newark Airport and Seattle is 6 per day as of October 2025. The most frequent departure time is 7:00a.m., with 40% of daily flights leaving at noon.

How often are flights from Newark to Seattle delayed?

Historically, on average around 17% of flights between Newark and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 212 minutes.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

How many flights depart from Newark Airport to Seattle on average per week?

The number of flights available between Newark Airport and Seattle is 48 per week as of October 2025. The most frequent departure day is Thu, with 40% of weekly flights leaving on this day.

What is the cheapest airline that flies from Newark to Seattle/Tacoma Intl?

United Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Newark to Seattle/Tacoma Intl

What is the most punctual flight time for Newark to Seattle flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Newark Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Newark Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Newark Airport to Seattle/Tacoma Intl Airport?

The number of operators available for flights from Newark Airport to Seattle/Tacoma Intl Airport is 1 as of October 2025.

How old do you have to be to fly from Newark Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Newark Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 145 Cheap Flights from Newark Airport to Seattle in 2025/26

1 adult

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9:20 a.m. - 12:39 p.m.EWR-SEA

6h 19mdirect

11:52 p.m. - 8:00 a.m.SEA-EWR

5h 08mdirect

C$ 283United Airlines

Find Deal

mié., 12 nov. - mié., 12 nov.

9:20 a.m. - 12:39 p.m.EWR-SEA

6h 19mdirect

6:14 a.m. - 2:30 p.m.SEA-EWR

5h 16mdirect

C$ 289United Airlines

Find Deal

jue., 13 nov. - lun., 17 nov.

2:45 p.m. - 10:28 p.m.EWR-SEA

10h 43m1 stop

6:15 a.m. - 2:29 p.m.SEA-EWR

5h 14mdirect

C$ 296United Airlines

Find Deal

mié., 12 nov. - mar., 18 nov.

3:30 p.m. - 11:10 p.m.EWR-SEA

10h 40m1 stop

6:00 a.m. - 2:14 p.m.SEA-EWR

5h 14mdirect

C$ 303United Airlines

Find Deal

mié., 12 nov. - dom., 16 nov.

6:08 p.m. - 9:28 p.m.EWR-SEA

6h 20mdirect

8:43 a.m. - 4:59 p.m.SEA-EWR

5h 16mdirect

C$ 310Alaska Airlines

Find Deal

sáb., 17 ene. - dom., 25 ene.

4:36 p.m. - 7:55 p.m.EWR-SEA

6h 19mdirect

8:43 a.m. - 4:59 p.m.SEA-EWR

5h 16mdirect

C$ 317Alaska Airlines

Find Deal

vie., 16 ene. - dom., 25 ene.

6:25 p.m. - 9:40 p.m.EWR-SEA

6h 15mdirect

6:15 a.m. - 2:40 p.m.SEA-EWR

5h 25mdirect

C$ 332Hawaiian Airlines

Find Deal

mar., 10 mar. - mié., 11 mar.

7:50 a.m. - 4:36 p.m.EWR-SEA

11h 46m1 stop

10:39 p.m. - 6:59 a.m.SEA-EWR

5h 20mdirect

C$ 362Hawaiian Airlines

Find Deal

mar., 16 dic. - jue., 25 dic.

5:30 p.m. - 10:25 p.m.EWR-SEA

7h 55m1 stop

11:25 a.m. - 11:59 p.m.SEA-EWR

9h 34m1 stop

C$ 380Delta

Find Deal

sáb., 13 dic. - lun., 5 ene.

6:51 a.m. - 12:56 p.m.EWR-SEA

9h 05m1 stop

5:25 a.m. - 5:41 p.m.SEA-EWR

9h 16m1 stop

C$ 387Delta

Find Deal

jue., 13 nov. - mié., 19 nov.

United Airlines flights from Newark Airport to Seattle

Our best United Airlines deals on Newark Airport to Seattle flight tickets

United Airlines

12 Nov

EWR9:20 a.m.Newark

6h 19m

SEA12:39 p.m.Seattle/Tacoma Intl

12 Nov

SEA11:52 p.m.Seattle/Tacoma Intl

5h 08m

EWR8:00 a.m.Newark

C$ 283

Find similar

United Airlines

13 Nov

EWR9:20 a.m.Newark

6h 19m

SEA12:39 p.m.Seattle/Tacoma Intl

17 Nov

SEA6:14 a.m.Seattle/Tacoma Intl

5h 16m

EWR2:30 p.m.Newark

C$ 289

Find similar

United Airlines

12 Nov

EWR2:45 p.m.Newark

10h 43m

1 stop

SEA10:28 p.m.Seattle/Tacoma Intl

18 Nov

SEA6:15 a.m.Seattle/Tacoma Intl

5h 14m

EWR2:29 p.m.Newark

C$ 296

Find similar

Alaska Airlines flights from Newark Airport to Seattle

Our best Alaska Airlines deals on Newark Airport to Seattle flight tickets

Alaska Airlines

17 Jan

EWR6:08 p.m.Newark

6h 20m

SEA9:28 p.m.Seattle/Tacoma Intl

25 Jan

SEA8:43 a.m.Seattle/Tacoma Intl

5h 16m

EWR4:59 p.m.Newark

C$ 310

Find similar

Alaska Airlines

16 Jan

EWR4:36 p.m.Newark

6h 19m

SEA7:55 p.m.Seattle/Tacoma Intl

25 Jan

SEA8:43 a.m.Seattle/Tacoma Intl

5h 16m

EWR4:59 p.m.Newark

C$ 317

Find similar

Alaska Airlines

9 Dec

EWR7:14 a.m.Newark

6h 26m

SEA10:40 a.m.Seattle/Tacoma Intl

13 Dec

SEA9:35 p.m.Seattle/Tacoma Intl

5h 23m

EWR5:58 a.m.Newark

C$ 321

Find similar

Fly from

Fly to

Route

Depart

Return

Price

NewarkSeattle

EWR - SEA

EWRSEA

Newark

mié. 12/11

9:20 a.m.-12:39 p.m.

Nonstop6h 19m

Seattle/Tacoma Intl

mié. 12/11

11:52 p.m.-8:00 a.m.

Nonstop5h 08m

C$ 283

NewarkSeattle

EWR - SEA

EWRSEA

Newark

jue. 13/11

9:20 a.m.-12:39 p.m.

Nonstop6h 19m

Seattle/Tacoma Intl

lun. 17/11

6:14 a.m.-2:30 p.m.

Nonstop5h 16m

C$ 289

NewarkSeattle

EWR - SEA

EWRSEA

Newark

mié. 12/11

2:45 p.m.-10:28 p.m.

1 stop10h 43m

Seattle/Tacoma Intl

mar. 18/11

6:15 a.m.-2:29 p.m.

Nonstop5h 14m

C$ 296

NewarkSeattle

EWR - SEA

EWRSEA

Newark

mié. 12/11

3:30 p.m.-11:10 p.m.

1 stop10h 40m

Seattle/Tacoma Intl

dom. 16/11

6:00 a.m.-2:14 p.m.

Nonstop5h 14m

C$ 303

NewarkSeattle

EWR - SEA

EWRSEA

Newark

sáb. 17/1

6:08 p.m.-9:28 p.m.

Nonstop6h 20m

Seattle/Tacoma Intl

dom. 25/1

8:43 a.m.-4:59 p.m.

Nonstop5h 16m

C$ 310

NewarkSeattle

EWR - SEA

EWRSEA

Newark

vie. 16/1

4:36 p.m.-7:55 p.m.

Nonstop6h 19m

Seattle/Tacoma Intl

dom. 25/1

8:43 a.m.-4:59 p.m.

Nonstop5h 16m

C$ 317

NewarkSeattle

EWR - SEA

EWRSEA

Newark

mar. 10/3

6:25 p.m.-9:40 p.m.

Nonstop6h 15m

Seattle/Tacoma Intl

mié. 11/3

6:15 a.m.-2:40 p.m.

Nonstop5h 25m

C$ 332

NewarkSeattle

EWR - SEA

EWRSEA

Newark

mar. 16/12

7:50 a.m.-4:36 p.m.

1 stop11h 46m

Seattle/Tacoma Intl

jue. 25/12

10:39 p.m.-6:59 a.m.

Nonstop5h 20m

C$ 362

NewarkSeattle

EWR - SEA

EWRSEA

Newark

sáb. 13/12

5:30 p.m.-10:25 p.m.

1 stop7h 55m

Seattle/Tacoma Intl

lun. 5/1

11:25 a.m.-11:59 p.m.

1 stop9h 34m

C$ 380

NewarkSeattle

EWR - SEA

EWRSEA

Newark

jue. 13/11

6:51 a.m.-12:56 p.m.

1 stop9h 05m

Seattle/Tacoma Intl

mié. 19/11

5:25 a.m.-5:41 p.m.

1 stop9h 16m

C$ 387

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Newark Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Seattle?

If you aren’t able to travel to Seattle during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of C$ 451.

What is the cheapest day to depart on your flight to Seattle?

Our data shows that Tuesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 433. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around C$ 839. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

What is the cheapest time of day to depart on your flight to Seattle?

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Newark Airport to Seattle during this time can be as low as C$ 587. Flights in the morning are often more expensive with an average ticket price of C$ 758.

What is the cheapest Newark to Seattle/Tacoma Intl flight route?

Fly from Newark to Seattle/Tacoma Intl for the best Newark - Seattle/Tacoma Intl flight prices

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

You are more likely to see cheaper flights to Seattle from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 587 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Newark Airport for as low as C$ 494 on momondo.

What cabin class options are available on Newark to Seattle/Tacoma Intl flights?

There are 3 cabin classes available to choose from on Newark to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Newark Airport to Seattle flights?

No. A direct flight is the cheapest option for a flight between Newark Airport to Seattle.

How have Newark Airport to Seattle flight prices changed over time?

As of October 2025, prices for Newark Airport to Seattle flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from Newark Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Newark Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Newark Airport to Seattle (EWR to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Newark Airport to Seattle

Fastest flight time	5h 59m
Direct flights	Every day
Airports in Seattle	1 airport

The fastest flight from Newark Airport to Seattle takes 5h 59m

Direct flights go from Newark Airport to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

How far is Newark to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 3851.5 km away from Newark. A reasonable flight in good conditions will take 6h 10m.
When did momondo last update prices for flights from Newark Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Newark Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Newark Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Newark Airport to Seattle/Tacoma Intl Airport is 1 as of October 2025.
How old do you have to be to fly from Newark Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Newark Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Newark Airport to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Newark Airport to Seattle is Boeing 737 MAX 9 (29.59% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (18.08%), Boeing 737 MAX 8 (14.38%), and Boeing 737 (8.78%).
What is the most popular airline from Newark Airport to Seattle?
Based on momondo bookings for flights between Newark Airport and Seattle, the leading airline is Alaska Airlines, making up 100% of the total bookings.

Best airlines flying from Newark Airport to Seattle

Compare and see reviews for airlines that fly from Newark Airport to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom C$ 506	Free Cancellation	Rating 8.0 11,217 reviews		Search Alaska Airlines flights

Alaska Airlines Flights From Newark Airport to Seattle
Alaska Airlines flies from Newark Airport to Seattle around 5 times per week, with 11,217 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Newark Airport to Seattle in the last 72 hours was C$ 506 (round-trip), much lower than the average airfare cost of C$ 805 for Alaska Airlines flights on this route.

Leavenworth

Lynnwood

Marysville

Tacoma

SeaTac

Kirkland

Olympia

Ocean Shores

Redmond

Shoreline

Ellensburg

Gig Harbor

Renton

Mukilteo

Cle Elum

Centralia

Federal Way

Puyallup

Shelton

Lakewood

Why use momondo?

Why should I use momondo to find a flight deal from New York to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from New York to Seattle . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from New York to Seattle with flexible booking policies on momondo?

All flight searches from New York to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from New York to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from New York. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from New York to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from New York are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Seattle trip

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sáb. 6/12

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Cheap flights from Newark Airport to Seattle from C$ 145

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Newark Airport to Seattle departing on 13/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Newark Airport to Seattle

Our best United Airlines deals on Newark Airport to Seattle flight tickets

Alaska Airlines flights from Newark Airport to Seattle

Our best Alaska Airlines deals on Newark Airport to Seattle flight tickets

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See travel insights to Seattle from

How to get the cheapest flight ticket from Newark Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

If you aren’t able to travel to Seattle during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of C$ 451.

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Newark Airport to Seattle during this time can be as low as C$ 587. Flights in the morning are often more expensive with an average ticket price of C$ 758.

What is the cheapest Newark to Seattle/Tacoma Intl flight route?

Fly from Newark to Seattle/Tacoma Intl for the best Newark - Seattle/Tacoma Intl flight prices

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

What cabin class options are available on Newark to Seattle/Tacoma Intl flights?

There are 3 cabin classes available to choose from on Newark to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Newark Airport to Seattle flights?

No. A direct flight is the cheapest option for a flight between Newark Airport to Seattle.

How have Newark Airport to Seattle flight prices changed over time?

As of October 2025, prices for Newark Airport to Seattle flights are approximately 9% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Newark to Seattle/Tacoma Intl?

United Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Newark to Seattle/Tacoma Intl

How often are flights from Newark to Seattle delayed?

Historically, on average around 17% of flights between Newark and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 212 minutes.

What is the most punctual flight time for Newark to Seattle flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Newark to Seattle flights?

According to our data, Sun Country Air has had the lowest number of delays on this route over the last 12 months, with no flights being classified as delayed.

How many flights depart from Newark Airport to Seattle on average per day?

The number of flights available between Newark Airport and Seattle is 6 per day as of October 2025. The most frequent departure time is 7:00a.m., with 40% of daily flights leaving at noon.

How many flights depart from Newark Airport to Seattle on average per week?

The number of flights available between Newark Airport and Seattle is 48 per week as of October 2025. The most frequent departure day is Thu, with 40% of weekly flights leaving on this day.

When to book flights from Newark Airport to Seattle

Cheap Newark Airport to Seattle (EWR to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Newark Airport to Seattle

Fastest flight time

Direct flights

Airports in Seattle

How far is Newark to Seattle/Tacoma Intl by plane?

When did momondo last update prices for flights from Newark Airport to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Newark Airport to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Newark Airport to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Newark Airport to Seattle?

What is the most popular airline from Newark Airport to Seattle?

Best airlines flying from Newark Airport to Seattle

Compare and see reviews for airlines that fly from Newark Airport to Seattle with momondo

Alaska Airlines Flights From Newark Airport to Seattle

Travelling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from New York to Seattle?

Can I find flights from New York to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from New York to Seattle?

I’m not ready to book a flight from New York to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington