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Tromsø

$758+ Cheap flights from Washington to Tromsø (TOS)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TOS
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Washington to Tromsø

Cheapest flights from Washington to Tromsø
Explore the most affordable flight options available from Washington to Tromsø. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Finnair deal was found by Cheapflights users on 1/26. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:40 pm
SEA
-
TOS
1 stop15h 35m
Multiple Airlines
Fri 5/156:50 pm
TOS
-
SEA
2 stops35h 33m
Multiple Airlines
Deal found 1/26$758
This Finnair deal was found by Cheapflights users on 1/26. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:18 am
SEA
-
TOS
2 stops27h 42m
Multiple Airlines
Thu 12/246:45 pm
TOS
-
SEA
2 stops31h 10m
Multiple Airlines
Deal found 1/26$759
This Finnair deal was found by Cheapflights users on 1/26. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:50 pm
SEA
-
TOS
3 stops29h 50m
Finnair
Thu 12/246:45 pm
TOS
-
SEA
2 stops31h 10m
Finnair
Deal found 1/26$798
This Trip.com deal was found by Cheapflights users on 1/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/123:00 pm
SEA
-
TOS
2 stops22h 55m
Multiple Airlines
Thu 3/196:30 am
TOS
-
SEA
2 stops39h 50m
Multiple Airlines
Deal found 1/26$804
This Air France deal was found by Cheapflights users on 1/24. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:30 pm
SEA
-
TOS
2 stops18h 35m
Air France
Fri 5/153:00 pm
TOS
-
SEA
2 stops29h 15m
Air France
Deal found 1/24$840
This FlightHub deal was found by Cheapflights users on 1/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:10 pm
SEA
-
TOS
1 stop15h 20m
Lufthansa
Fri 5/153:15 pm
TOS
-
SEA
1 stop30h 05m
Lufthansa
Deal found 1/24$904
This Priceline deal was found by Cheapflights users on 1/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1212:50 pm
SEA
-
TOS
3 stops36h 35m
Finnair
Thu 3/196:30 pm
TOS
-
SEA
2 stops31h 25m
Finnair
Deal found 1/26$939

Find flight deals from Washington to Tromsø

Keep the following information in mind while searching for Washington to Tromsø flight deals. Data was last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$758
(Finnair)

Popular in

April

Cheapest in

October

Average price

$559
Provider with most accurate pricing for Seattle/Tacoma Intl-Tromso/Langnes flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Tromso/Langnes flights.
Search Deals
From Washington to Tromso/Langnes
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Tromsø 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 January 26, 2026.
Use the filters below to find and compare flights from Washington to Tromsø that are best for you.

Fly from

Washington

Fly to

Tromsø

Route

Depart

Return

Price

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Thu 3/12

3:00 pm-9:55 pm

2 stops22h 55m

Tromso/Langnes

Thu 3/19

6:30 am-2:20 pm

2 stops39h 50m

$804

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Thu 3/12

12:50 pm-9:25 am

3 stops36h 35m

Tromso/Langnes

Thu 3/19

6:30 pm-5:55 pm

2 stops31h 25m

$939

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 3/17

3:35 pm-11:50 pm

3 stops24h 15m

Tromso/Langnes

Fri 3/27

6:00 am-6:00 pm

3 stops20h 00m

$1,055

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Wed 2/11

7:00 am-2:35 pm

2 stops22h 35m

Tromso/Langnes

Wed 2/18

3:15 pm-12:10 pm

2 stops29h 55m

$1,121

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Thu 2/12

10:55 am-10:10 am

2 stops38h 15m

Tromso/Langnes

Thu 2/19

10:50 am-11:30 pm

2 stops45h 40m

$1,172

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Wed 2/11

4:55 pm-11:50 pm

3 stops21h 55m

Tromso/Langnes

Wed 2/18

7:20 pm-11:25 pm

2 stops37h 05m

$1,991

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Best time to book a flight from Washington to Tromsø

Have a flexible travel schedule? Discover the best time to fly to Tromsø from Washington 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 Washington to Tromsø

What is the cheapest month to book a flight from State of Washington to Tromsø?

Currently, November is the cheapest month in which you can book a flight from State of Washington to Tromsø (average of $493). Flying from State of Washington to Tromsø in December is currently the most expensive (average of $866). 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 Washington to Tromsø. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Tromsø from Washington?

    If you book a flight to Tromsø from Washington, you will be flying to Tromso/Langnes, which is the city’s only airport. Tromso/Langnes (TOS) is located 2.5 mi from the center of Tromsø.

  • How long is the flight from State of Washington to Tromsø?

    There are many flights that can get you from State of Washington to Tromsø in 36h 35m. Fly via Finnair to get the fastest option. The distance from State of Washington to Tromsø is about 4107 mi.

  • Can I find deals for flights from Washington to Tromsø that include hotel bookings?

    Yes. In addition to deals on Washington to Tromsø flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Tromsø?

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

  • Can I find deals for business class flights from Washington to Tromsø?

    Yes. Cheapflights offers flight deals from Washington to Tromsø 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 State of Washington to Tromsø?

    Currently, November is the cheapest month in which you can book a flight from State of Washington to Tromsø (average of $493). Flying from State of Washington to Tromsø in December is currently the most expensive (average of $866). 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

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Alternative routes for Washington to Tromsø

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Washington to Tromsø

Discover the top airline that operate flights from Washington to Tromsø. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$522Average$867FlexibilityNo cancel feeOn-time77%

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