HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tromsø

$468+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TOS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Tromsø with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$546
(Mytrip)

One-way from

$468
(Delta)

Popular in

December

Cheapest in

November

Average price

$1,014
From Seattle/Tacoma Intl to Tromso/Langnes
Search Deals
One-way flight from Seattle/Tacoma Intl to Tromso/Langnes
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/12. 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 7/274:00 pmSEA - TOS
2 stops31h 30mScandinavian Airlines
Sun 8/37:05 amTOS - SEA
2 stops39h 45mScandinavian Airlines
Deal found 6/12$546
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/23:45 pmSEA - TOS
2 stops18h 20mMultiple Airlines
Fri 9/1210:45 amTOS - SEA
2 stops18h 55mMultiple Airlines
Deal found 6/11$672
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/91:30 pmSEA - TOS
1 stop15h 50mDelta
Sun 8/173:20 pmTOS - SEA
1 stop35h 15mDelta
Deal found 6/11$747
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/75:40 pmSEA - TOS
1 stop29h 45mFinnair
Fri 8/156:50 pmTOS - SEA
1 stop30h 10mFinnair
Deal found 6/11$919
This Gurufare deal was found by Cheapflights users on 6/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:00 pmSEA - TOS
1 stop15h 50mLufthansa
Sat 12/201:25 pmTOS - SEA
1 stop32h 55mLufthansa
Deal found 6/10$1,020

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 June 12, 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 7/27

4:00 pm-8:30 am

2 stops31h 30m

Tromso/Langnes

Sun 8/3

7:05 am-1:50 pm

2 stops39h 45m

$546

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 9/2

3:45 pm-7:05 pm

2 stops18h 20m

Tromso/Langnes

Fri 9/12

10:45 am-8:40 pm

2 stops18h 55m

$672

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sat 8/9

1:30 pm-2:20 pm

1 stop15h 50m

Tromso/Langnes

Sun 8/17

3:20 pm-5:35 pm

1 stop35h 15m

$747

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Thu 8/7

5:40 pm-8:25 am

1 stop29h 45m

Tromso/Langnes

Fri 8/15

6:50 pm-4:00 pm

1 stop30h 10m

$919

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 8/8

2:20 pm-2:15 pm

1 stop14h 55m

Tromso/Langnes

Sat 8/16

4:35 pm-4:59 pm

1 stop33h 24m

$1,075

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 8/15

9:20 pm-2:20 pm

2 stops32h 00m

$468

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 8/15

2:20 pm-2:15 pm

1 stop14h 55m

$575

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 8/15

11:59 pm-6:15 pm

3 stops33h 16m

$1,510

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 12, 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 June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,387 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,139 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $546 on this airline. Additional options worth looking into are Delta and Finnair, starting at $747 and $919 round-trip. Users have found that Scandinavian Airlines is 28% cheaper than the other options available to this destination.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$575Average$958FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.