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$866+ Cheap flights from Newcastle upon Tyne (NCL) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
NCL — SEA
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
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Cheap flight deals from Newcastle upon Tyne to Seattle

Cheapest flights from Newcastle upon Tyne to Seattle
Explore the most affordable flight options available from Newcastle upon Tyne to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.

This TravelUp deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:30 am
NCL
-
SEA
1 stop18h 20m
British Airways
Mon 12/216:45 pm
SEA
-
NCL
1 stop15h 55m
British Airways
Deal found 7/20$866
This KLM deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:25 am
NCL
-
SEA
1 stop15h 10m
Multiple Airlines
Fri 9/186:45 pm
SEA
-
NCL
1 stop18h 50m
Multiple Airlines
Deal found 7/23$901
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:45 am
NCL
-
SEA
1 stop18h 50m
Delta
Fri 9/187:15 am
SEA
-
NCL
2 stops19h 20m
Delta
Deal found 7/23$906
This TravelUp deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:15 pm
NCL
-
SEA
1 stop23h 20m
British Airways
Sun 8/308:20 pm
SEA
-
NCL
1 stop14h 10m
British Airways
Deal found 7/20$908
This Delta deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:45 am
NCL
-
SEA
1 stop18h 50m
Delta
Thu 9/106:00 am
SEA
-
NCL
2 stops18h 45m
Delta
Deal found 7/21$910
This British Airways deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:40 pm
NCL
-
SEA
1 stop22h 55m
British Airways
Sun 9/61:50 pm
SEA
-
NCL
2 stops20h 40m
British Airways
Deal found 7/22$939

Find flight deals from Newcastle upon Tyne to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Newcastle upon Tyne (NCL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 24, 2026.

Round-trip from

$866
(TravelUp)

Popular in

January

Cheapest in

May

Average price

$1,008
From Newcastle upon Tyne to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($348 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($111 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 24, 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

Cheapest round-trip

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Thu 8/20

8:15 pm-11:35 am

1 stop23h 20m

Seattle/Tacoma Intl

Sun 8/30

8:20 pm-6:30 pm

1 stop14h 10m

$908

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Thu 9/3

5:45 am-4:35 pm

1 stop18h 50m

Seattle/Tacoma Intl

Thu 9/10

6:00 am-8:45 am

2 stops18h 45m

$910

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Wed 9/2

8:40 pm-11:35 am

1 stop22h 55m

Seattle/Tacoma Intl

Sun 9/6

1:30 pm-11:30 am

1 stop14h 00m

$940

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Sat 8/8

6:10 am-8:52 pm

2 stops22h 42m

Seattle/Tacoma Intl

Wed 8/12

8:20 pm-4:40 pm

1 stop12h 20m

$960

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Mon 8/17

4:20 pm-11:35 am

1 stop27h 15m

Seattle/Tacoma Intl

Mon 8/24

1:30 pm-10:25 am

1 stop12h 55m

$977

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Mon 8/17

7:20 pm-11:59 pm

2 stops36h 39m

Seattle/Tacoma Intl

Mon 8/24

8:20 pm-7:45 pm

1 stop15h 25m

$1,023

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Fri 1/1

5:50 am-2:00 pm

2 stops16h 10m

Seattle/Tacoma Intl

Mon 1/4

11:25 am-1:10 pm

2 stops17h 45m

$1,081
Quickest round-trip

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Mon 8/3

6:00 am-11:35 am

1 stop13h 35m

Seattle/Tacoma Intl

Tue 8/11

1:30 pm-10:00 am

1 stop12h 30m

$1,082

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Sat 8/8

6:10 am-6:55 pm

1 stop20h 45m

Seattle/Tacoma Intl

Wed 8/12

9:40 pm-9:25 am

1 stop27h 45m

$1,102

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Sorted by cheapest first

Best time to book a flight from Newcastle upon Tyne to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Newcastle upon Tyne with our price prediction graph.
Estimated round-trip 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 Newcastle upon Tyne to Seattle

What is the cheapest month to book a flight from Newcastle upon Tyne to Seattle?

Currently, May is the cheapest month in which you can book a flight from Newcastle upon Tyne to Seattle (average of $782). Flying from Newcastle upon Tyne to Seattle in January is currently the most expensive (average of $2,282). 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.

How much does it cost to fly round-trip from Newcastle upon Tyne to Seattle?

Airfare is below average for this route at the moment.

Newcastle upon Tyne to Seattle flights typically cost between $978 and $1,341 in December.
The cheapest round-trip price found within the last 5 days was $866 on British Airways (Dec 10-Dec 21).

Related info for your journey

Find useful and relevant information for your journey from Newcastle upon Tyne to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Newcastle upon Tyne to Seattle?

    British Airways and Delta can get you from Newcastle upon Tyne to Seattle in just under 18h 50m. Your travel time can differ by up to 4h 30m. Newcastle upon Tyne and Seattle are separated by a distance of 4559 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Newcastle upon Tyne to Seattle that include hotel bookings?

    Yes. In addition to deals on Newcastle upon Tyne to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Newcastle upon Tyne to Seattle?

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

  • Can I find deals for business class flights from Newcastle upon Tyne to Seattle?

    Yes. Cheapflights offers flight deals from Newcastle upon Tyne 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 Newcastle upon Tyne to Seattle?

    Currently, May is the cheapest month in which you can book a flight from Newcastle upon Tyne to Seattle (average of $782). Flying from Newcastle upon Tyne to Seattle in January is currently the most expensive (average of $2,282). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
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Issaquah

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