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$603+ Cheap flights from Newcastle upon Tyne (NCL) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
NCL — SEA
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
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 March 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:45 am
NCL
-
SEA
1 stop16h 25m
Multiple Airlines
Thu 4/307:10 pm
SEA
-
NCL
1 stop18h 10m
Multiple Airlines
Deal found 3/9$778
This Expedia deal was found by Cheapflights users on 3/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:45 am
NCL
-
SEA
2 stops18h 55m
KLM
Thu 4/301:50 pm
SEA
-
NCL
1 stop25h 05m
KLM
Deal found 3/11$848
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:30 pm
NCL
-
SEA
2 stops34h 15m
Multiple Airlines
Sat 5/27:10 pm
SEA
-
NCL
1 stop12h 30m
Multiple Airlines
Deal found 3/11$858
This TravelUp deal was found by Cheapflights users on 3/11. 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.
Mon 4/136:00 am
NCL
-
SEA
1 stop13h 35m
Multiple Airlines
Thu 4/301:35 pm
SEA
-
NCL
1 stop12h 40m
Multiple Airlines
Deal found 3/11$869
This British Airways deal was found by Cheapflights users on 3/8. 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 4/229:35 am
NCL
-
SEA
2 stops19h 48m
British Airways
Sun 4/2612:34 pm
SEA
-
NCL
2 stops38h 51m
British Airways
Deal found 3/8$873
This British Airways deal was found by Cheapflights users on 3/9. 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.
Thu 4/239:35 am
NCL
-
SEA
2 stops19h 48m
British Airways
Thu 4/301:30 pm
SEA
-
NCL
1 stop11h 55m
British Airways
Deal found 3/9$909
This TravelUp deal was found by Cheapflights users on 3/11. 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.
Sat 4/251:45 pm
NCL
-
SEA
1 stop34h 45m
KLM
Sat 5/21:45 pm
SEA
-
NCL
1 stop15h 25m
KLM
Deal found 3/11$933

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 March 12, 2026.

Round-trip from

$778
(Kiwi.com)

One-way from

$603
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,174
From Newcastle upon Tyne to Seattle/Tacoma Intl
Search Deals
One-way flight from Newcastle upon Tyne to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
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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 March 12, 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

Wed 4/22

9:35 am-9:23 pm

2 stops19h 48m

Seattle/Tacoma Intl

Sun 4/26

12:34 pm-11:25 am

2 stops38h 51m

$873
Quickest round-trip

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Sat 9/5

8:30 pm-11:35 am

1 stop23h 05m

Seattle/Tacoma Intl

Sun 9/20

8:20 pm-6:30 pm

1 stop14h 10m

$944
Cheapest one-way

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Tue 3/17

8:40 am-6:00 pm

3 stops40h 20m

$603
Quickest one-way

Newcastle upon TyneSeattle

NCL - SEA

NCLSEA

Newcastle upon Tyne

Tue 3/17

12:20 pm-5:55 pm

1 stop12h 35m

$1,147

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

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 $556). Flying from Newcastle upon Tyne to Seattle in January is currently the most expensive (average of $792). 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.

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?

    KLM and British Airways can get you from Newcastle upon Tyne to Seattle in just under 18h 55m. Your travel time can differ by up to 53m. 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 $556). Flying from Newcastle upon Tyne to Seattle in January is currently the most expensive (average of $792). 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
Tacoma
SeaTac
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Kent
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Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
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Shoreline
Marysville
Centralia
Federal Way
Chehalis

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