Cheap flights from Newcastle upon Tyne to Seattle from $421

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Newcastle upon Tyne to Seattle departing on 5/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Newcastle upon Tyne to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
5:35 pm - 11:40 am
NCL
-
SEA
26h 05m1 stop
KLM Logo
3:05 pm - 1:10 pm
SEA
-
NCL
14h 05m1 stop
$640KLM
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
9:20 am - 11:40 am
NCL
-
SEA
34h 20m1 stop
Multiple Airlines Logo
9:39 am - 10:20 am
SEA
-
NCL
16h 41m2 stops
$651Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
6:00 am - 2:44 pm
NCL
-
SEA
16h 44m2 stops
Multiple Airlines Logo
9:39 am - 10:20 am
SEA
-
NCL
16h 41m2 stops
$656Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
British Airways Logo
9:35 am - 6:25 pm
NCL
-
SEA
16h 50m1 stop
British Airways Logo
12:34 pm - 11:25 am
SEA
-
NCL
38h 51m2 stops
$685British Airways
Wed, Apr 22 - Sun, Apr 26
British Airways Logo
11:05 am - 11:39 pm
NCL
-
SEA
20h 34m2 stops
British Airways Logo
12:34 pm - 11:25 am
SEA
-
NCL
38h 51m2 stops
$686British Airways
Wed, Apr 22 - Sun, Apr 26
British Airways Logo
9:35 am - 6:25 pm
NCL
-
SEA
16h 50m1 stop
British Airways Logo
8:20 pm - 6:30 pm
SEA
-
NCL
14h 10m1 stop
$720British Airways
Wed, Apr 22 - Sun, Apr 26
British Airways Logo
11:05 am - 10:26 pm
NCL
-
SEA
19h 21m2 stops
British Airways Logo
8:20 pm - 6:30 pm
SEA
-
NCL
14h 10m1 stop
$727British Airways
Wed, Apr 22 - Sun, Apr 26
British Airways Logo
9:35 am - 6:25 pm
NCL
-
SEA
16h 50m1 stop
British Airways Logo
8:20 pm - 9:55 pm
SEA
-
NCL
17h 35m1 stop
$730British Airways
Wed, Apr 22 - Sun, Apr 26
British Airways Logo
6:05 am - 11:35 am
NCL
-
SEA
13h 30m1 stop
British Airways Logo
8:20 pm - 6:30 pm
SEA
-
NCL
14h 10m1 stop
$736British Airways
Wed, Apr 22 - Sun, Apr 26
Multiple Airlines Logo
5:35 pm - 5:00 pm
NCL
-
SEA
31h 25m3 stops
Multiple Airlines Logo
5:50 am - 10:25 pm
SEA
-
NCL
32h 35m3 stops
$1,053Multiple Airlines
Mon, Feb 23 - Mon, Mar 2

British Airways flights from Newcastle upon Tyne to Seattle

Our best British Airways deals on Newcastle upon Tyne to Seattle flight tickets
British Airways
Apr 22
NCL9:35 amNewcastle upon Tyne
16h 50m
1 stop
SEA6:25 pmSeattle/Tacoma Intl
Apr 26
SEA12:34 pmSeattle/Tacoma Intl
38h 51m
2 stops
NCL11:25 amNewcastle upon Tyne
$685
British Airways
Apr 22
NCL11:05 amNewcastle upon Tyne
20h 34m
2 stops
SEA11:39 pmSeattle/Tacoma Intl
Apr 26
SEA12:34 pmSeattle/Tacoma Intl
38h 51m
2 stops
NCL11:25 amNewcastle upon Tyne
$686
British Airways
Apr 22
NCL9:35 amNewcastle upon Tyne
16h 50m
1 stop
SEA6:25 pmSeattle/Tacoma Intl
Apr 26
SEA8:20 pmSeattle/Tacoma Intl
14h 10m
1 stop
NCL6:30 pmNewcastle upon Tyne
$720

momondo Fare Finder

 
Customize your flight search to find flights from Newcastle upon Tyne to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 11, 2026.
Use the filters below to find and compare flights from Newcastle upon Tyne to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Mon 2/23

5:35 pm-11:40 am

1 stop26h 05m

Seattle/Tacoma Intl

Mon 3/2

3:05 pm-1:10 pm

1 stop14h 05m

$640

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Mon 2/23

9:20 am-11:40 am

1 stop34h 20m

Seattle/Tacoma Intl

Mon 3/2

9:39 am-10:20 am

2 stops16h 41m

$651

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Mon 2/23

6:00 am-2:44 pm

2 stops16h 44m

Seattle/Tacoma Intl

Mon 3/2

9:39 am-10:20 am

2 stops16h 41m

$656

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Wed 4/22

9:35 am-6:25 pm

1 stop16h 50m

Seattle/Tacoma Intl

Sun 4/26

12:34 pm-11:25 am

2 stops38h 51m

$685

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Wed 4/22

11:05 am-11:39 pm

2 stops20h 34m

Seattle/Tacoma Intl

Sun 4/26

12:34 pm-11:25 am

2 stops38h 51m

$686

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Wed 4/22

9:35 am-6:25 pm

1 stop16h 50m

Seattle/Tacoma Intl

Sun 4/26

8:20 pm-6:30 pm

1 stop14h 10m

$720

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Wed 4/22

11:05 am-10:26 pm

2 stops19h 21m

Seattle/Tacoma Intl

Sun 4/26

8:20 pm-6:30 pm

1 stop14h 10m

$727

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Wed 4/22

9:35 am-6:25 pm

1 stop16h 50m

Seattle/Tacoma Intl

Sun 4/26

8:20 pm-9:55 pm

1 stop17h 35m

$730

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Wed 4/22

6:05 am-11:35 am

1 stop13h 30m

Seattle/Tacoma Intl

Sun 4/26

8:20 pm-6:30 pm

1 stop14h 10m

$736

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Mon 2/23

5:35 pm-5:00 pm

3 stops31h 25m

Seattle/Tacoma Intl

Mon 3/2

5:50 am-10:25 pm

3 stops32h 35m

$1,053

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Newcastle upon Tyne 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?

In general, February is the cheapest month to fly from Newcastle upon Tyne to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $609. If you don’t want to visit Seattle in February, then you should wait until March to fly from Newcastle upon Tyne, when ticket prices are also cheap, with an average price of $777.

When to book flights from Newcastle upon Tyne to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Newcastle upon Tyne to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Newcastle upon Tyne to Seattle (NCL to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Newcastle upon Tyne to Seattle

Fastest flight time

13h 50m

Direct flights

None
The fastest flight from Newcastle upon Tyne to Seattle takes 13h 50m
There are no direct flights from Newcastle upon Tyne to Seattle. There are no popular flight routes from Newcastle upon Tyne to Seattle.
  • How far is Newcastle upon Tyne to Seattle/Tacoma Intl by plane?

    The straight-line distance from Newcastle upon Tyne to Seattle/Tacoma Intl is 4555.2 mi. By plane, this route typically takes 13h 50m.

  • When did momondo last update prices for flights from Newcastle upon Tyne Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Newcastle upon Tyne Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How old do you have to be to fly from Newcastle upon Tyne 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 Newcastle upon Tyne 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.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Federal Way
Cle Elum
Lakewood
Fife
Westport
Kirkland
Centralia
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Newcastle upon Tyne to Seattle?

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

Can I find flights from Newcastle upon Tyne to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Newcastle upon Tyne which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Newcastle upon Tyne to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Newcastle upon Tyne to Seattle.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Newcastle upon Tyne and alert you when they change.

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1 adult
Tue 2/10
Tue 2/17

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