How often are flights from Newark to Seattle delayed?

About 18% of weekly flights between Newark and Seattle have experienced delays in the past year, with the average delay time being 168 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

Over the past year, Alaska Airlines have had the lowest number of delays on this route, with just 18% of flights being delayed.

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

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

How long is the flight from Newark Airport to Seattle?

There are many flights that can get you from Newark Airport to Seattle in 6h 26m. Fly via Delta, Alaska Airlines, or United Airlines to get the fastest option. Airlines will cover a distance of 2393 mi. Both multi-stop and direct flights can be found to your destination and back.

Weekly flight availability from Newark Airport to Seattle

The most flights from EWR to SEA are scheduled on a Tuesday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most reliable airlines from Newark Airport to Seattle?

The top 3 most reliable airlines when flying from Newark Airport to Seattle are American Airlines (85%), Japan Airlines (85%) and Alaska Airlines (83%).

What airport do you fly into for flights to Seattle from Newark?

Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Newark. On average, Seattle/Tacoma Intl has 5 inbound flights from Newark per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

Can I find deals for flights from Newark to Seattle that include hotel bookings?

Yes. In addition to deals on Newark to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Newark to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Newark to Seattle.

Can I find deals for business class flights from Newark to Seattle?

Yes. Cheapflights offers flight deals from Newark to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£130+ Cheap Flights from Newark Airport to Seattle

Cheap flight deals from Newark to Seattle

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Cheapest flights from Newark to Seattle
Explore the most affordable flight options available from Newark to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2026.

Tue 17/1108:20 -

1 stop11h 18m

Thu 26/1105:35 -

1 stop9h 04m

Deal found 2/11£251

Thu 26/1107:55 -

Nonstop6h 21m

Thu 24/1222:50 -

1 stop7h 57m

Deal found 30/10£253

Thu 26/1106:50 -

1 stop11h 05m

Wed 2/1219:54 -

1 stop7h 04m

Deal found 2/11£255

Sat 5/1209:00 -

Nonstop6h 29m

Tue 8/1222:40 -

Nonstop5h 08m

Deal found 4/11£259

Mon 14/1207:00 -

Nonstop6h 26m

Mon 14/1218:57 -

1 stop7h 58m

Deal found 1/11£259

Wed 18/1117:29 -

1 stop8h 31m

Wed 2/1215:44 -

Nonstop5h 15m

Deal found 3/11£262

Wed 9/1219:02 -

Nonstop6h 25m

Wed 6/108:30 -

1 stop7h 46m

Deal found 4/11£263

Sat 12/1207:00 -

Nonstop6h 26m

Mon 4/122:12 -

Nonstop5h 27m

Deal found 4/11£264

Sat 5/1219:35 -

Nonstop6h 25m

Sat 12/1219:30 -

1 stop8h 46m

Deal found 4/11£266

Find flight deals from Newark to Seattle

Round-trip from	£251
One-way from	£130
Popular in	August
Cheapest in	January
Average price	£280

Alaska Airlines
17/11-18/11
Nonstop
11h 34m total
Newark to Seattle

Search Deals

United Airlines
5/12-31/12
Nonstop
6h 25m total
Newark to Seattle

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£51 potential increase over avg. return price).

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Cheapest flight prices on average. 3% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Wed 18/11

07:06-15:04

1 stop10h 58m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£133

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Sat 16/1

16:50-22:02

1 stop8h 12m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£137

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Tue 5/1

06:00-10:55

1 stop7h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£137

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Thu 1/4

07:00-15:00

1 stop11h 00m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£148

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Sun 6/12

09:40-13:01

Nonstop6h 21m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£163

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Mon 4/1

20:08-23:30

Nonstop6h 22m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£164

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Thu 26/11

09:00-20:56

2 stops14h 56m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£171

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Wed 18/11

18:17-21:39

Nonstop6h 22m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£174

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Tue 17/11

18:25-21:49

Nonstop6h 24m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£174

NewarkSeattle

EWR Newark - SEA Seattle/Tacoma Intl

EWRSEA

Newark

Thu 19/11

18:17-21:39

Nonstop6h 22m

Seattle/Tacoma Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

£180

Flights are sorted by cheapest return flights first.

Deals found on 31/10

Showing 1-10 of 23 resultsSorted by cheapest first

Best time to book a flight from Newark to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Newark with our price prediction graph.

EWR-SEA

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Newark Airport to Seattle

Prices

Airlines

Delays

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

To ensure you get the cheapest price possible for a flight from Newark Airport to Seattle, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Newark Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of £229). Flying from Newark Airport to Seattle in August is currently the most expensive (average of £426). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from EWR to SEA?

When flying from Newark Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Newark Airport to Seattle?

Airfare is below average for this route at the moment.

Newark Airport to Seattle flights typically cost between £259 and £353 in November.
The cheapest return price found within the last 5 days was £251 on Alaska Airlines (17 Nov–18 Nov).

Related info for your journey

What airport do you fly into for flights to Seattle from Newark?
Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Newark. On average, Seattle/Tacoma Intl has 5 inbound flights from Newark per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.
How long is the flight from Newark Airport to Seattle?
There are many flights that can get you from Newark Airport to Seattle in 6h 26m. Fly via Delta, Alaska Airlines, or United Airlines to get the fastest option. Airlines will cover a distance of 2393 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most reliable airlines from Newark Airport to Seattle?
The top 3 most reliable airlines when flying from Newark Airport to Seattle are American Airlines (85%), Japan Airlines (85%) and Alaska Airlines (83%).
Can I find deals for flights from Newark to Seattle that include hotel bookings?
Yes. In addition to deals on Newark to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Newark to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Newark to Seattle.
Can I find deals for business class flights from Newark to Seattle?
Yes. Cheapflights offers flight deals from Newark to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Newark Airport to Seattle?
Currently, January is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of £229). Flying from Newark Airport to Seattle in August is currently the most expensive (average of £426). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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How does Cheapflights help users find flights from Newark to Seattle?

Cheapflights helps you search for flights from Newark to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Newark to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Newark.

Can Cheapflights find flights from Newark to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Newark to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Newark to Seattle become cheaper?

Yes! Start tracking prices for Newark to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Newark Airport to Seattle from £130

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Newark to Seattle

Cheapest flights from Newark to SeattleExplore the most affordable flight options available from Newark to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2026.

Explore the most affordable flight options available from Newark to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2026.

Best flights from Newark to SeattleDiscover carefully curated flight deals from Newark to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 November 2026.

Discover carefully curated flight deals from Newark to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 November 2026.

Direct flights from Newark to SeattleExplore direct flight options from Newark to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 November 2026.

Explore direct flight options from Newark to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 November 2026.

Last-minute flights from Newark to SeattleDiscover last-minute flight deals from Newark to Seattle. Data last updated 4 November 2026 and is based on user searches.

Discover last-minute flight deals from Newark to Seattle. Data last updated 4 November 2026 and is based on user searches.

One-way flights from Newark to SeattleSearch for one-way flight options from Newark to Seattle. Find affordable one-way fares based on user searches. Data last updated 4 November 2026.

Search for one-way flight options from Newark to Seattle. Find affordable one-way fares based on user searches. Data last updated 4 November 2026.

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Use the filters below to find and compare flights from Newark Airport to Seattle that are best for you.

Best time to book a flight from Newark to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Newark with our price prediction graph.

Cheapflights Insights

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

To ensure you get the cheapest price possible for a flight from Newark Airport to Seattle, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Newark Airport to Seattle?

What is the cheapest time of day to fly from EWR to SEA?

When flying from Newark Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Newark Airport to Seattle?

Airfare is below average for this route at the moment.

Newark Airport to Seattle flights typically cost between £259 and £353 in November.The cheapest return price found within the last 5 days was £251 on Alaska Airlines (17 Nov–18 Nov).

Weekly flight availability from Newark Airport to Seattle

The most flights from EWR to SEA are scheduled on a Tuesday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Newark to Seattle delayed?

About 18% of weekly flights between Newark and Seattle have experienced delays in the past year, with the average delay time being 168 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Alaska Airlines have had the lowest number of delays on this route, with just 18% of flights being delayed.

Related info for your journey

What airport do you fly into for flights to Seattle from Newark?

How long is the flight from Newark Airport to Seattle?

What are the most reliable airlines from Newark Airport to Seattle?

Can I find deals for flights from Newark to Seattle that include hotel bookings?

How can I find direct flights from Newark to Seattle?

Can I find deals for business class flights from Newark to Seattle?

What is the cheapest month to book a flight from Newark Airport to Seattle?

Travelling to a place near Seattle?

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Alternative routes for Newark to Seattle

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Complete your trip

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Direct flights to Washington

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Search flights from Newark to Seattle by cabin class

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Newark and Seattle flights

Browse other Newark and Seattle flight options. Last updated on 4 November 2026.

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How does Cheapflights help users find flights from Newark to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Newark to Seattle?

Can Cheapflights find flights from Newark to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Newark to Seattle become cheaper?

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Cheapest flights from Newark to Seattle
Explore the most affordable flight options available from Newark to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2026.

Best flights from Newark to Seattle
Discover carefully curated flight deals from Newark to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 November 2026.

Direct flights from Newark to Seattle
Explore direct flight options from Newark to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 November 2026.

Last-minute flights from Newark to Seattle
Discover last-minute flight deals from Newark to Seattle. Data last updated 4 November 2026 and is based on user searches.

One-way flights from Newark to Seattle
Search for one-way flight options from Newark to Seattle. Find affordable one-way fares based on user searches. Data last updated 4 November 2026.

Newark Airport to Seattle flights typically cost between £259 and £353 in November.
The cheapest return price found within the last 5 days was £251 on Alaska Airlines (17 Nov–18 Nov).