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Tromsø

$386+ Cheap flights from Seattle (SEA) to Tromsø (TOS)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TOS
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Seattle to Tromsø

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Tromsø (TOS). 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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$588
(Flightnetwork)

One-way from

$386
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$958
Provider with most accurate pricing for Seattle/Tacoma Intl-Tromso/Langnes flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Tromso/Langnes flights.
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From Seattle/Tacoma Intl to Tromso/Langnes
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One-way flight from Seattle/Tacoma Intl to Tromso/Langnes
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Highest demand for flights based on searches. 19% potential increase in price ($186 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Seattle to Tromsø

Cheapest flights from Seattle to Tromsø
Explore the most affordable flight options available from Seattle to Tromsø. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/17. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/14:00 pmSEA - TOS
2 stops21h 10mScandinavian Airlines
Sun 6/84:30 pmTOS - SEA
2 stops30h 20mScandinavian Airlines
Deal found 4/17$588
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/14:00 pmSEA - TOS
3 stops20h 45mMultiple Airlines
Sun 6/83:25 pmTOS - SEA
2 stops31h 25mMultiple Airlines
Deal found 4/17$941
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/241:35 pmSEA - TOS
2 stops43h 40mFinnair
Sat 5/318:05 amTOS - SEA
1 stop16h 55mFinnair
Deal found 4/17$1,086
This Lufthansa deal was found by Cheapflights users on 4/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/242:15 pmSEA - TOS
1 stop15h 00mLufthansa
Tue 7/153:15 pmTOS - SEA
1 stop29h 40mLufthansa
Deal found 4/17$1,619

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle 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 April 17, 2025.
Use the filters below to find and compare flights from Seattle to Tromsø that are best for you.

Fly from

Seattle

Fly to

Tromsø

Route

Depart

Return

Price

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sun 6/1

4:00 pm-10:10 pm

2 stops21h 10m

Tromso/Langnes

Sun 6/8

4:30 pm-1:50 pm

2 stops30h 20m

$588

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sun 6/1

4:00 pm-9:45 pm

3 stops20h 45m

Tromso/Langnes

Sun 6/8

3:25 pm-1:50 pm

2 stops31h 25m

$941

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sat 5/24

1:35 pm-6:15 pm

2 stops43h 40m

Tromso/Langnes

Sat 5/31

8:05 am-4:00 pm

1 stop16h 55m

$1,086

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 6/24

2:15 pm-2:15 pm

1 stop15h 00m

Tromso/Langnes

Tue 7/15

3:15 pm-11:55 am

1 stop29h 40m

$1,619

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 8/15

8:15 pm-2:20 pm

2 stops33h 05m

$488

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Thu 7/3

3:45 pm-10:00 am

3 stops57h 15m

$491

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 8/15

2:20 pm-2:15 pm

1 stop14h 55m

$673

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sun 6/1

11:15 am-3:40 pm

3 stops19h 25m

$3,165

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Compare providers for flights from Seattle to Tromsø

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Tromsø in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Tromsø flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Tromsø flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Tromsø flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Tromsø flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Tromsø flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Tromsø

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

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

Find hourly flight availability from Seattle to Tromsø. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Tromsø at noon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the afternoon.

Rainfall in Tromsø by month

Plan your trip to Tromsø by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Tromsø ranges from 1.8 - 5.1 inches per month. October is typically the wettest month, when rainfall can reach 5.1 in. May is typically the driest time to visit Tromsø when rainfall is around 1.8 in.

Temperature in Tromsø by month

Plan your trip to Tromsø by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Tromsø, 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 53.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Tromsø

Get insights into the airlines that provide service to Tromsø. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Tromsø. Reviews last updated April 17, 2025.
Finnair
7.6
Good
1,269 reviews

Food

6.7

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Finnair
7.6
Good
1,269 reviews
Finnair
7.6
Good
1,269 reviews

Food

6.7

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Scandinavian Airlines
7.3
Good
1,335 reviews
Finnair
7.6
Good
1,269 reviews

Food

6.7

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Lufthansa
6.7
Okay
7,012 reviews
Finnair
7.6
Good
1,269 reviews

Food

6.7

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

Related info for your journey

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

  • What are the cheapest airlines flying from Seattle to Tromsø round-trip?

    Our cheapest airline available from Seattle to Tromsø is Scandinavian Airlines. Our recent data shows that you can find tickets from as low as $588 on this airline. Additional options worth looking into are Finnair and Lufthansa, starting at $1,042 and $1,649 round-trip. Users have found that Scandinavian Airlines is 25% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Tromsø one-way?

    The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $544. However, be on the lookout for offers from Finnair and Scandinavian Airlines, as they are both options that can get you from Seattle to Tromsø for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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.

See more FAQs

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Top airline flying from Seattle to Tromsø

Discover the top airline that operate flights from Seattle 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$575Average$1,014FlexibilityNo cancel feeOn-time77%

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