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

Finnair and Lufthansa are the most popular carriers 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 February 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.

$746 Cheap Flights from Seattle to Tromsø in 2026

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Find the cheapest flights from Seattle to Tromsø

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:35 pm - 9:55 pm

SEA

TOS

22h 20m

2 stops

4:55 pm - 6:00 pm

TOS

SEA

33h 05m

2 stops

$746Multiple Airlines

Mon, Mar 9 - Sun, Mar 15

9:05 pm - 11:45 am

SEA

TOS

30h 40m

1 stop

12:35 pm - 11:13 pm

TOS

SEA

42h 38m

2 stops

$760Aer Lingus

Mon, Mar 9 - Sun, Mar 15

3:00 pm - 2:15 pm

SEA

TOS

39h 15m

2 stops

5:10 pm - 12:20 pm

TOS

SEA

52h 10m

2 stops

$772Multiple Airlines

Mon, Mar 23 - Mon, Mar 30

3:35 pm - 11:00 am

SEA

TOS

35h 25m

3 stops

6:00 pm - 6:00 pm

TOS

SEA

32h 00m

2 stops

$784Multiple Airlines

Mon, Mar 9 - Sun, Mar 15

3:10 pm - 2:30 pm

SEA

TOS

39h 20m

2 stops

9:00 pm - 11:45 am

TOS

SEA

47h 45m

2 stops

$832Multiple Airlines

Sun, Mar 22 - Sun, Mar 29

4:05 pm - 9:40 am

SEA

TOS

33h 35m

1 stop

10:05 am - 11:45 am

TOS

SEA

34h 40m

1 stop

$840KLM

Sun, Mar 22 - Sun, Mar 29

2:10 pm - 2:30 pm

SEA

TOS

15h 20m

1 stop

3:15 pm - 6:30 pm

TOS

SEA

36h 15m

2 stops

$869Lufthansa

Tue, May 12 - Fri, May 15

7:17 am - 11:20 am

SEA

TOS

43h 03m

2 stops

7:10 pm - 10:29 pm

TOS

SEA

36h 19m

2 stops

$871Scandinavian Airlines

Tue, May 12 - Fri, May 15

7:50 pm - 9:30 am

SEA

TOS

29h 40m

3 stops

10:30 am - 11:43 pm

TOS

SEA

21h 13m

3 stops

$886Finnair

Mon, Mar 9 - Sun, Mar 15

5:40 pm - 6:15 pm

SEA

TOS

15h 35m

1 stop

6:50 pm - 10:38 pm

TOS

SEA

36h 48m

2 stops

$891Finnair

Tue, May 12 - Fri, May 15

Scandinavian Airlines flights from Seattle to Tromsø

Our best Scandinavian Airlines deals on Seattle to Tromsø flight tickets

Scandinavian Airlines

May 12

SEA7:17 amSeattle/Tacoma Intl

43h 03m

2 stops

TOS11:20 amTromso/Langnes

May 15

TOS7:10 pmTromso/Langnes

36h 19m

2 stops

SEA10:29 pmSeattle/Tacoma Intl

$871

Scandinavian Airlines

May 12

SEA2:39 pmSeattle/Tacoma Intl

22h 51m

3 stops

TOS10:30 pmTromso/Langnes

May 15

TOS7:10 pmTromso/Langnes

36h 19m

2 stops

SEA10:29 pmSeattle/Tacoma Intl

$1,005

Scandinavian Airlines

Jul 3

SEA3:55 pmSeattle/Tacoma Intl

33h 25m

1 stop

TOS10:20 amTromso/Langnes

Jul 12

TOS9:00 pmTromso/Langnes

49h 45m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$1,037

Finnair flights from Seattle to Tromsø

Our best Finnair deals on Seattle to Tromsø flight tickets

Finnair

Mar 9

SEA7:50 pmSeattle/Tacoma Intl

29h 40m

3 stops

TOS9:30 amTromso/Langnes

Mar 15

TOS10:30 amTromso/Langnes

21h 13m

3 stops

SEA11:43 pmSeattle/Tacoma Intl

$886

Finnair

May 12

SEA5:40 pmSeattle/Tacoma Intl

15h 35m

1 stop

TOS6:15 pmTromso/Langnes

May 15

TOS6:50 pmTromso/Langnes

36h 48m

2 stops

SEA10:38 pmSeattle/Tacoma Intl

$891

Finnair

Feb 23

SEA6:50 pmSeattle/Tacoma Intl

29h 40m

3 stops

TOS9:30 amTromso/Langnes

Feb 27

TOS10:25 amTromso/Langnes

41h 57m

3 stops

SEA7:22 pmSeattle/Tacoma Intl

$1,435

Fly from

Fly to

Route

Depart

Return

Price

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 3/9

3:35 pm-9:55 pm

2 stops22h 20m

Tromso/Langnes

Sun 3/15

4:55 pm-6:00 pm

2 stops33h 05m

$746

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 3/9

9:05 pm-11:45 am

1 stop30h 40m

Tromso/Langnes

Sun 3/15

12:35 pm-11:13 pm

2 stops42h 38m

$760

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 3/23

3:00 pm-2:15 pm

2 stops39h 15m

Tromso/Langnes

Mon 3/30

5:10 pm-12:20 pm

2 stops52h 10m

$772

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 3/9

3:35 pm-11:00 am

3 stops35h 25m

Tromso/Langnes

Sun 3/15

6:00 pm-6:00 pm

2 stops32h 00m

$784

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sun 3/22

3:10 pm-2:30 pm

2 stops39h 20m

Tromso/Langnes

Sun 3/29

9:00 pm-11:45 am

2 stops47h 45m

$832

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sun 3/22

4:05 pm-9:40 am

1 stop33h 35m

Tromso/Langnes

Sun 3/29

10:05 am-11:45 am

1 stop34h 40m

$840

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 5/12

2:10 pm-2:30 pm

1 stop15h 20m

Tromso/Langnes

Fri 5/15

3:15 pm-6:30 pm

2 stops36h 15m

$869

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 5/12

7:17 am-11:20 am

2 stops43h 03m

Tromso/Langnes

Fri 5/15

7:10 pm-10:29 pm

2 stops36h 19m

$871

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Mon 3/9

7:50 pm-9:30 am

3 stops29h 40m

Tromso/Langnes

Sun 3/15

10:30 am-11:43 pm

3 stops21h 13m

$886

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 5/12

5:40 pm-6:15 pm

1 stop15h 35m

Tromso/Langnes

Fri 5/15

6:50 pm-10:38 pm

2 stops36h 48m

$891

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 October is, on average, the cheapest month to fly to Tromsø from Seattle, with most prices found around $552. If you aren’t able to travel during the month of October, then book flights to Tromsø from Seattle during November instead. Flights to Tromsø in November, while not as cheap as those in October, still average around $552.

Can stopping save me money on Seattle to Tromsø flights?

You could potentially save up to 15% 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	15h 20m
Direct flights	None

The fastest flight from Seattle to Tromsø takes 15h 20m

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

Search flight deals

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 15h 20m.
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 February 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 7.3 1,678 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.