What is the cheapest airline that flies from Seattle/Tacoma Intl to Tromso/Langnes?

KLM is the most popular carrier operating from Seattle/Tacoma Intl to Tromso/Langnes

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport were last updated today.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport?

As of May 2026, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport.

What documentation or ID do you need to fly to Tromso/Langnes Airport?

The required travel and health documents for your Tromso/Langnes Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Tromso/Langnes Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$345 Cheap Flights from Seattle to Tromsø in 2026

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Find the cheapest flights from Seattle to Tromsø

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 am - 2:20 pm

SEA

TOS

22h 05m

2 stops

2:00 pm - 1:45 pm

TOS

SEA

32h 45m

2 stops

$676Scandinavian Airlines

Tue, Jun 9 - Mon, Jun 15

3:55 pm - 10:20 am

SEA

TOS

33h 25m

2 stops

7:30 pm - 10:26 pm

TOS

SEA

34h 56m

2 stops

$736Scandinavian Airlines

Sun, Sep 27 - Tue, Oct 27

9:50 am - 2:20 pm

SEA

TOS

43h 30m

2 stops

8:55 pm - 1:45 pm

TOS

SEA

49h 50m

2 stops

$764Scandinavian Airlines

Mon, Sep 21 - Sun, Sep 27

7:00 pm - 11:25 pm

SEA

TOS

19h 25m

2 stops

8:20 am - 8:40 pm

TOS

SEA

21h 20m

2 stops

$789Multiple Airlines

Mon, Jun 8 - Mon, Jun 15

9:50 am - 2:20 pm

SEA

TOS

43h 30m

2 stops

6:50 pm - 1:45 pm

TOS

SEA

51h 55m

3 stops

$797Scandinavian Airlines

Mon, Sep 21 - Sun, Sep 27

3:55 pm - 11:45 pm

SEA

TOS

46h 50m

2 stops

9:00 pm - 1:45 pm

TOS

SEA

49h 45m

2 stops

$805Scandinavian Airlines

Fri, Jul 17 - Sun, Aug 2

1:30 pm - 6:40 pm

SEA

TOS

20h 10m

2 stops

4:00 pm - 11:37 am

TOS

SEA

28h 37m

2 stops

$824Multiple Airlines

Mon, Jun 8 - Mon, Jun 15

3:55 pm - 11:20 am

SEA

TOS

34h 25m

1 stop

4:00 pm - 1:45 pm

TOS

SEA

30h 45m

2 stops

$827Scandinavian Airlines

Tue, Jun 9 - Mon, Jun 15

3:55 pm - 11:15 am

SEA

TOS

34h 20m

3 stops

5:40 pm - 1:45 pm

TOS

SEA

29h 05m

2 stops

$838Scandinavian Airlines

Tue, Jun 9 - Mon, Jun 15

7:00 pm - 11:15 am

SEA

TOS

31h 15m

3 stops

10:50 am - 8:40 pm

TOS

SEA

18h 50m

2 stops

$862Multiple Airlines

Mon, Jun 8 - Mon, Jun 15

Scandinavian Airlines flights from Seattle to Tromsø

Our best Scandinavian Airlines deals on Seattle to Tromsø flight tickets

Scandinavian Airlines

Jun 9

SEA7:15 amSeattle/Tacoma Intl

22h 05m

2 stops

TOS2:20 pmTromso/Langnes

Jun 15

TOS2:00 pmTromso/Langnes

32h 45m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$676

Scandinavian Airlines

Sep 27

SEA3:55 pmSeattle/Tacoma Intl

33h 25m

2 stops

TOS10:20 amTromso/Langnes

Oct 27

TOS7:30 pmTromso/Langnes

34h 56m

2 stops

SEA10:26 pmSeattle/Tacoma Intl

$736

Scandinavian Airlines

Sep 21

SEA9:50 amSeattle/Tacoma Intl

43h 30m

2 stops

TOS2:20 pmTromso/Langnes

Sep 27

TOS8:55 pmTromso/Langnes

49h 50m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$764

Finnair flights from Seattle to Tromsø

Our best Finnair deals on Seattle to Tromsø flight tickets

Finnair

Jul 17

SEA5:40 pmSeattle/Tacoma Intl

31h 25m

2 stops

TOS10:05 amTromso/Langnes

Aug 2

TOS10:30 amTromso/Langnes

34h 05m

3 stops

SEA11:35 amSeattle/Tacoma Intl

$1,291

Finnair

Oct 14

SEA8:20 pmSeattle/Tacoma Intl

36h 55m

2 stops

TOS6:15 pmTromso/Langnes

Oct 18

TOS10:30 amTromso/Langnes

58h 05m

3 stops

SEA11:35 amSeattle/Tacoma Intl

$2,072

Finnair

Oct 14

SEA8:20 pmSeattle/Tacoma Intl

36h 55m

2 stops

TOS6:15 pmTromso/Langnes

Oct 18

TOS10:30 amTromso/Langnes

22h 44m

3 stops

SEA12:14 amSeattle/Tacoma Intl

$2,089

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 6/9

7:15 am-2:20 pm

2 stops22h 05m

Tromso/Langnes

Mon 6/15

2:00 pm-1:45 pm

2 stops32h 45m

$676

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sun 9/27

3:55 pm-10:20 am

2 stops33h 25m

Tromso/Langnes

Tue 10/27

7:30 pm-10:26 pm

2 stops34h 56m

$736

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 9/21

9:50 am-2:20 pm

2 stops43h 30m

Tromso/Langnes

Sun 9/27

8:55 pm-1:45 pm

2 stops49h 50m

$764

Quickest round-trip

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 6/8

7:00 pm-11:25 pm

2 stops19h 25m

Tromso/Langnes

Mon 6/15

8:20 am-8:40 pm

2 stops21h 20m

$789

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 9/21

9:50 am-2:20 pm

2 stops43h 30m

Tromso/Langnes

Sun 9/27

6:50 pm-1:45 pm

3 stops51h 55m

$797

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 7/17

3:55 pm-11:45 pm

2 stops46h 50m

Tromso/Langnes

Sun 8/2

9:00 pm-1:45 pm

2 stops49h 45m

$805

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 6/8

1:30 pm-6:40 pm

2 stops20h 10m

Tromso/Langnes

Mon 6/15

4:00 pm-11:37 am

2 stops28h 37m

$824

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 6/9

3:55 pm-11:20 am

1 stop34h 25m

Tromso/Langnes

Mon 6/15

4:00 pm-1:45 pm

2 stops30h 45m

$827

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 6/9

3:55 pm-11:15 am

3 stops34h 20m

Tromso/Langnes

Mon 6/15

5:40 pm-1:45 pm

2 stops29h 05m

$838

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 6/8

7:00 pm-11:15 am

3 stops31h 15m

Tromso/Langnes

Mon 6/15

10:50 am-8:40 pm

2 stops18h 50m

$862

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Tromsø

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Tromsø?

The month of May is, on average, the cheapest month to fly to Tromsø from Seattle, with most prices found around $0. If you aren’t able to travel during the month of May, then book flights to Tromsø from Seattle during September instead. Flights to Tromsø in September, while not as cheap as those in May, still average around $531.

Can stopping save me money on Seattle to Tromsø flights?

You could potentially save up to 33% on your flight if you consider stops on a Seattle to Tromsø flight.

When to book flights from Seattle to Tromsø

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Tromsø according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Tromsø (SEA to TOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Tromsø

Fastest flight time	12h 10m
Direct flights	None

The fastest flight from Seattle to Tromsø takes 12h 10m

There are no direct flights from Seattle to Tromsø. There are no popular flight routes from Seattle to Tromsø.

Search flight deals

Frequently asked questions about flying from Seattle to Tromsø

How far is Seattle/Tacoma Intl to Tromso/Langnes by plane?
Tromso/Langnes is 4098.9 mi away from Seattle/Tacoma Intl. By plane, this route typically takes 12h 10m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport?
As of May 2026, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Tromso/Langnes Airport.
What documentation or ID do you need to fly to Tromso/Langnes Airport?
The required travel and health documents for your Tromso/Langnes Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Tromso/Langnes Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Seattle to Tromsø?
momondo data reveals that the most frequently booked airline on the route from Seattle to Tromsø is Scandinavian Airlines, representing 100% of all bookings.

Best airlines flying from Seattle to Tromsø

Compare and see reviews for airlines that fly from Seattle to Tromsø with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $522	Free Cancellation	Rating 7.4 1,772 reviews		Search Scandinavian Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Tromsø?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Tromsø for you.

Can I find flights from Seattle to Tromsø with flexible booking policies on momondo?

Yes. All flights to Tromsø from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Tromsø?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Tromsø from Seattle.

I’m not ready to book a flight from Seattle to Tromsø right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Tromsø, momondo offers a useful price alert feature which will track prices for flights to Tromsø from Seattle and alert you when they change.