SEA - TOS

$500 Find Cheap Flights from Seattle to Tromsø

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Tromsø departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Tromsø

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Tromsø, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Tromsø, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Tromsø (SEA-TOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Tromsø that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Tromsø

Sun, Jan 11 - Sat, Jan 17
Multiple Airlines Logo
2:35 pm - 9:55 pmSEA-TOS
22h 20m2 stops
Multiple Airlines Logo
8:15 am - 5:00 pmTOS-SEA
17h 45m2 stops
$500Multiple Airlines
Find Deal
Fri, Jan 23 - Mon, Feb 2
Scandinavian Airlines Logo
7:10 am - 11:15 amSEA-TOS
19h 05m2 stops
Scandinavian Airlines Logo
6:00 am - 6:58 pmTOS-SEA
21h 58m3 stops
$513Scandinavian Airlines
Find Deal
Sat, Jan 10 - Fri, Jan 16
Scandinavian Airlines Logo
7:10 am - 10:45 amSEA-TOS
18h 35m2 stops
Scandinavian Airlines Logo
8:15 pm - 10:25 pmTOS-SEA
35h 10m2 stops
$517Scandinavian Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 19
Multiple Airlines Logo
2:35 pm - 4:55 pmSEA-TOS
17h 20m2 stops
Multiple Airlines Logo
8:15 am - 5:00 pmTOS-SEA
17h 45m2 stops
$519Multiple Airlines
Find Deal
Sun, Jan 11 - Sat, Jan 17
Delta Logo
4:45 pm - 1:50 pmSEA-TOS
36h 05m2 stops
Delta Logo
2:50 pm - 1:25 pmTOS-SEA
31h 35m1 stop
$550Delta
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Thu, Jan 15 - Thu, Jan 22
Finnair Logo
8:35 am - 6:00 pmSEA-TOS
24h 25m2 stops
Finnair Logo
10:35 am - 11:59 pmTOS-SEA
22h 24m3 stops
$554Finnair
Find Deal
Thu, Jan 15 - Thu, Jan 22
Finnair Logo
9:52 am - 6:00 pmSEA-TOS
23h 08m2 stops
Finnair Logo
6:30 pm - 8:45 pmTOS-SEA
35h 15m2 stops
$556Finnair
Find Deal
Sun, Jan 11 - Sat, Jan 17
Delta Logo
4:45 pm - 1:50 pmSEA-TOS
36h 05m2 stops
Delta Logo
2:50 pm - 10:25 pmTOS-SEA
40h 35m2 stops
$560Delta
Find Deal
Fri, Jan 9 - Sat, Jan 17
Lufthansa Logo
3:10 pm - 5:25 pmSEA-TOS
41h 15m2 stops
Lufthansa Logo
1:20 pm - 1:20 pmTOS-SEA
33h 00m1 stop
$637Lufthansa
Find Deal
Sat, Jan 10 - Sat, Jan 17
Lufthansa Logo
2:00 pm - 2:15 pmSEA-TOS
39h 15m2 stops
Lufthansa Logo
1:20 pm - 1:20 pmTOS-SEA
33h 00m1 stop
$650Lufthansa
Find Deal

Everything you should know

Top airlines
Scandinavian Airlines
Cheapest • from $513 (round-trip)
Scandinavian Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 25% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$500
Typical prices: $548-$602
Multiple Airlines
Sun 1/11Sat 1/17
SEA - TOS • 2 stops
Cheapest one-way
$1,104
Multiple Airlines
Fri 12/19
SEA - TOS • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Tromsø!
Booking Insights

KAYAK's insights & trends for Seattle to Tromsø flights

Get data-powered insights and trends into flights from Seattle to Tromsø to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Tromsø?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Tromsø departing in January.

What is the cheapest month to fly from Seattle to Tromsø?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Tromsø, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Tromsø is October, where tickets cost $552 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,173 and $1,014 respectively.

Find deals

Good to know

Low seasonMay
Cheapest flight$500
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 29% increase in price.
Flight from Seattle to Tromsø

When to book flights from Seattle to Tromsø

Are your dates flexible? Find out the best times to travel from Seattle to Tromsø based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Tromsø

  • What is the cheapest flight from Seattle to Tromsø?

    In the last 3 days, the lowest price for a flight from Seattle to Tromsø was $1,104 for a one-way ticket and $500 for a round-trip.

  • Do I need a passport to fly between Seattle and Tromsø?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Seattle and on arrival in Tromsø.

  • Which airports will I be using when flying from Seattle to Tromsø?

    Seattle and Tromsø are both served by 1 main airport. You will leave Seattle from Seattle/Tacoma Intl and will be arriving at Tromso/Langnes.

  • Which aircraft models fly most regularly from Seattle to Tromsø?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Tromsø?

    SkyTeam is the only airline alliance operating flights between Seattle and Tromsø.

  • How does KAYAK find such low prices on flights from Seattle to Tromsø?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Tromsø.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Tromsø?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Tromsø from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Tromsø?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Tromsø with an airline and back to Seattle with another airline. Booking your flights between Seattle and TOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Tromsø?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Tromsø from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Seattle to Tromsø

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Tromsø. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Tromsø? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Scandinavian AirlinesOverall score based on 1556 reviews
7.6Boarding
7.3Comfort
8.0Crew
6.6Food
6.6Entertainment
Airline reviews

No vegetarian option was provided for the regular meal or the pre-landing snack.

2.0 MediocreAnonymous, Oct 2025LAX - CPH
Read more Scandinavian Airlines reviews

No vegetarian option was provided for the regular meal or the pre-landing snack.

The Scandinavian flight was excellent, however the second flight was partnered with TAP Portugal which was not so good. crowded gate area with no chairs, delayed flight, bad boarding process, no entertainment system onboard, and the baggage didn’t get to the carousel until well over an hour which caused our taxi that was waiting to leave. Love SAS, hate TAP.

Great logistics and timeliness as we arrived quite early. Flight smooth and fast. Excellent entertainment. Plane itself was a bit tired and the crew mostly indifferent. Baggage took forever but that’s on CPH. Would use SAS again for sure.

Baggage was mis-handled; food and grocery items in the baggage were damaged.

It was a good flight. Everyone was professional and the flight was smooth.

Service, food was outstanding. They make every effort to make sure that your long flight is as comfortable as possible. The only reason I did not rate them excellent is the way they handled our cancelled flight. They were great about re-booking except for the hotel. A communication breakdown ensued regarding who was booking the hotel for our overnight stay: the city where the flight was cancelled or the city where we were going to lay over for the night. In the end, neither of them did, so we ended up doing it ourselves and were extremely lucky to get a room at all. Given that, I still would not hesitate to fly with them anytime.

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

No choice of food. Needed to pay more even for a can of coke!!!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

Everything you need to know for your flight from Seattle to Tromsø

Information on your arrival and departure airports

Seattle (SEA)
Tromsø (TOS)

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