SEA - TOS

$369 Find Cheap Flights from Seattle to Tromsø

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Tromsø departing on 10/19. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$661
Delta
Thu 7/9Sat 7/18
SEA - TOS • 1 stop
Cheapest one-way
$369
Air France
Mon 10/19
SEA - TOS • 2 stops
Top airlines
Cheapest • from $661 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Tromsø. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $684 (round-trip)
Shortest trip • 12h 10m (one-way)
Insights
Insights
Insights
Insights
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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!
Flight Deals
Booking Insights
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

Thu, Jul 9 - Sat, Jul 18
Delta Logo
6:35 pm - 12:50 pm
SEA
-
TOS
33h 15m
1 stop
Delta Logo
1:50 pm - 11:15 am
TOS
-
SEA
30h 25m
1 stop
$661Delta
Thu, Jul 9 - Sat, Jul 18
Delta Logo
10:40 pm - 12:50 pm
SEA
-
TOS
29h 10m
2 stops
Delta Logo
1:50 pm - 11:15 am
TOS
-
SEA
30h 25m
1 stop
$664Delta
Sun, Jul 5 - Thu, Jul 16
Scandinavian Airlines Logo
3:55 pm - 9:55 pm
SEA
-
TOS
21h 00m
2 stops
Scandinavian Airlines Logo
1:50 pm - 1:45 pm
TOS
-
SEA
32h 55m
2 stops
$684Scandinavian Airlines
Thu, Jul 9 - Sat, Jul 25
Delta Logo
11:59 pm - 12:50 pm
SEA
-
TOS
27h 51m
2 stops
Delta Logo
1:50 pm - 11:15 am
TOS
-
SEA
30h 25m
1 stop
$687Delta
Wed, Jul 8 - Sat, Jul 18
Delta Logo
9:50 pm - 12:50 pm
SEA
-
TOS
54h 00m
2 stops
Delta Logo
1:50 pm - 11:15 am
TOS
-
SEA
30h 25m
1 stop
$691Delta
Sun, Jul 5 - Mon, Jul 13
Scandinavian Airlines Logo
3:55 pm - 9:55 pm
SEA
-
TOS
21h 00m
2 stops
Scandinavian Airlines Logo
8:45 pm - 1:45 pm
TOS
-
SEA
26h 00m
1 stop
$694Scandinavian Airlines
Sun, Jul 12 - Sun, Jul 19
Scandinavian Airlines Logo
3:55 pm - 11:45 pm
SEA
-
TOS
22h 50m
2 stops
Scandinavian Airlines Logo
5:10 pm - 1:45 pm
TOS
-
SEA
53h 35m
2 stops
$698Scandinavian Airlines
Wed, Jul 8 - Sat, Jul 18
Delta Logo
6:15 pm - 12:50 pm
SEA
-
TOS
57h 35m
2 stops
Delta Logo
1:50 pm - 8:42 pm
TOS
-
SEA
39h 52m
2 stops
$711Delta
Sun, Jul 12 - Sat, Jul 18
Scandinavian Airlines Logo
3:55 pm - 11:45 pm
SEA
-
TOS
46h 50m
2 stops
Scandinavian Airlines Logo
7:30 pm - 1:45 pm
TOS
-
SEA
27h 15m
1 stop
$714Scandinavian Airlines
Sun, Jul 12 - Thu, Jul 16
Scandinavian Airlines Logo
3:55 pm - 11:45 pm
SEA
-
TOS
22h 50m
2 stops
Scandinavian Airlines Logo
1:50 pm - 1:45 pm
TOS
-
SEA
32h 55m
2 stops
$718Scandinavian Airlines
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.

Which airlines provide the cheapest flights from Seattle to Tromsø?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Seattle to Tromsø were found on Delta ($661) and Scandinavian Airlines ($684).

Good to know

Cheapest flight$369
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 5 days, the lowest price for a flight from Seattle to Tromsø was $369 for a one-way ticket and $661 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 1828 reviews
8.0Crew
7.3Comfort
6.7Food
6.7Entertainment
7.7Boarding
Airline reviews

Mediocre. Maybe due to Economy light. Staff was great. Space shrunk, not for me, and definitely not for Vikings. Food was decent. Assistance lagging. There was a possibility to upgrade to Premium economy, however my bid was immediately classified as low and not even considered (though well over minimum bid). Thus I was no bleeding dry.

6.0 GoodLibor, Jun 2026
EWR - PRG
Read more Scandinavian Airlines reviews

Mediocre. Maybe due to Economy light. Staff was great. Space shrunk, not for me, and definitely not for Vikings. Food was decent. Assistance lagging. There was a possibility to upgrade to Premium economy, however my bid was immediately classified as low and not even considered (though well over minimum bid). Thus I was no bleeding dry.

Upon departing and landing, the man seating in front of me had his seat leaning back. Taking off nobody told him anything. Landing someone from the crew said something but the passenger ignored him and nobody followed up. Felt a bit unsecured. If this that is some of the basics are missed, what else was overlooked?

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

Every flight got canceled or delayed. Customer service was awful.

They lost my luggage and can’t find it. My trip is ruined. Online tracking of lost luggage doesn’t work

No free Wi-Fi. I have SkyMiles but not a high status, having an account has been enough for Wi-Fi on other flights, but this one was going to charge me to use it. Also turbulence was really bad toward the end, but I didn't count this in my ratings since I know Delta cannot control the weather - it's 2026 and lack of WiFi alone is enough for a poor rating.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

The worst with the trip was the space in economy, my knees are still hurting. There was no way to control personal air by turning a knob above you, it was way to hot on both rides. During the night flight they allowed 2 people from across the aile which was narrow to sit and talk for 7 hours while also using tablets and the flashlight from their phones pointing into the row where I sat at times. They allowed people with way too large baggage to bring onboard. I paid way too much for the ticket ($1,364} for economy. Kayak misinformed me to get cancellation insurance that was only valid for a very short time (less than 12 hours) and was over one hundred dollars. Hotel booking was incorrect, I had the room booked myself at the hotel, only double or larger rooms available which I paid over 400 dollars for. I will never fly with SAS again unless there is no other alternative.

Crew members were excellent. The seat wasn’t the best as well as a food options.

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

Information on your arrival and departure airports