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

Delta and Air France 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 August 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.

$350 Cheap Flights from Seattle to Tromsø in 2026

Discover deals from 900+ travel sites with momondo.

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.

3:55 pm - 6:00 pmSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

17h 05m2 stops Kastrup Copenhagen Bodø

4:00 pm - 1:45 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

54h 45m2 stops Oslo Gardermoen Kastrup Copenhagen

$453Scandinavian Airlines

Sun, Sep 20 - Wed, Sep 30

3:55 pm - 6:00 pmSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

17h 05m2 stops Kastrup Copenhagen Bodø

8:45 pm - 1:45 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

50h 00m2 stops Oslo Gardermoen Kastrup Copenhagen

$453Scandinavian Airlines

Sun, Sep 20 - Wed, Sep 30

3:55 pm - 11:15 amSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

58h 20m3 stops Kastrup Copenhagen Trondheim Vaernes Bodø

8:45 pm - 1:45 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

50h 00m2 stops Oslo Gardermoen Kastrup Copenhagen

$474Scandinavian Airlines

Sun, Sep 20 - Wed, Sep 30

3:55 pm - 6:00 pmSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

41h 05m3 stops Kastrup Copenhagen Trondheim Vaernes Bodø

7:10 pm - 1:45 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

51h 35m2 stops Oslo Gardermoen Kastrup Copenhagen

$478Scandinavian Airlines

Sun, Sep 20 - Wed, Sep 30

3:55 pm - 6:40 pmSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

17h 45m2 stops Kastrup Copenhagen Oslo Gardermoen

6:00 am - 11:04 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

26h 04m2 stops Oslo Gardermoen New York John F Kennedy Intl

$562Scandinavian Airlines

Tue, Sep 22 - Tue, Oct 6

3:55 pm - 2:20 pmSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

13h 25m1 stop Kastrup Copenhagen

6:00 am - 11:04 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

26h 04m2 stops Oslo Gardermoen New York John F Kennedy Intl

$564Scandinavian Airlines

Tue, Sep 22 - Tue, Oct 6

3:55 pm - 11:15 amSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

34h 20m3 stops Kastrup Copenhagen Trondheim Vaernes Bodø

6:00 am - 11:04 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

26h 04m2 stops Oslo Gardermoen New York John F Kennedy Intl

$572Scandinavian Airlines

Tue, Sep 22 - Tue, Oct 6

2:35 pm - 11:20 amSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

11h 45m1 stop Reykjavik Keflavik Intl

1:05 pm - 5:00 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

12h 55m1 stop Reykjavik Keflavik Intl

$594Icelandair

Thu, Jan 28 - Mon, Feb 1

2:35 pm - 11:20 amSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

11h 45m1 stop Reykjavik Keflavik Intl

1:05 pm - 5:00 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

12h 55m1 stop Reykjavik Keflavik Intl

$595Icelandair

Thu, Jan 28 - Mon, Feb 1

2:35 pm - 10:20 pmSEA Seattle/Tacoma Intl-TOS Tromso/Langnes

22h 45m2 stops Reykjavik Keflavik Intl Bergen Flesland

1:05 pm - 5:00 pmTOS Tromso/Langnes-SEA Seattle/Tacoma Intl

12h 55m1 stop Reykjavik Keflavik Intl

$775Multiple Airlines

Wed, Jan 13 - Mon, Jan 25

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Scandinavian Airlines flights from Seattle to Tromsø

Our best Scandinavian Airlines deals on Seattle to Tromsø flight tickets

Scandinavian Airlines

Sep 20

SEA3:55 pmSeattle/Tacoma Intl

17h 05m

2 stops

TOS6:00 pmTromso/Langnes

Sep 30

TOS4:00 pmTromso/Langnes

54h 45m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$453

Scandinavian Airlines

Sep 20

SEA3:55 pmSeattle/Tacoma Intl

58h 20m

3 stops

TOS11:15 amTromso/Langnes

Sep 30

TOS8:45 pmTromso/Langnes

50h 00m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$474

Scandinavian Airlines

Sep 20

SEA3:55 pmSeattle/Tacoma Intl

41h 05m

3 stops

TOS6:00 pmTromso/Langnes

Sep 30

TOS7:10 pmTromso/Langnes

51h 35m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$478

Icelandair flights from Seattle to Tromsø

Our best Icelandair deals on Seattle to Tromsø flight tickets

Icelandair

Jan 28

SEA2:35 pmSeattle/Tacoma Intl

11h 45m

1 stop

TOS11:20 amTromso/Langnes

Feb 1

TOS1:05 pmTromso/Langnes

12h 55m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$594

Icelandair

Jan 28

SEA2:35 pmSeattle/Tacoma Intl

11h 45m

1 stop

TOS11:20 amTromso/Langnes

Feb 1

TOS1:05 pmTromso/Langnes

12h 55m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$595

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-6:00 pm

2 stops17h 05m

Tromso/Langnes

Wed 9/30

4:00 pm-1:45 pm

2 stops54h 45m

$453

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-6:00 pm

2 stops17h 05m

Tromso/Langnes

Wed 9/30

8:45 pm-1:45 pm

2 stops50h 00m

$453

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-11:15 am

3 stops58h 20m

Tromso/Langnes

Wed 9/30

8:45 pm-1:45 pm

2 stops50h 00m

$474

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-6:00 pm

3 stops41h 05m

Tromso/Langnes

Wed 9/30

7:10 pm-1:45 pm

2 stops51h 35m

$478

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Tue 9/22

3:55 pm-6:40 pm

2 stops17h 45m

Tromso/Langnes

Tue 10/6

6:00 am-11:04 pm

2 stops26h 04m

$562

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Tue 9/22

3:55 pm-2:20 pm

1 stop13h 25m

Tromso/Langnes

Tue 10/6

6:00 am-11:04 pm

2 stops26h 04m

$564

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Tue 9/22

3:55 pm-11:15 am

3 stops34h 20m

Tromso/Langnes

Tue 10/6

6:00 am-11:04 pm

2 stops26h 04m

$572

Quickest round-trip

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Thu 1/28

2:35 pm-11:20 am

1 stop11h 45m

Tromso/Langnes

Mon 2/1

1:05 pm-5:00 pm

1 stop12h 55m

$594

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Thu 1/28

2:35 pm-11:20 am

1 stop11h 45m

Tromso/Langnes

Mon 2/1

1:05 pm-5:00 pm

1 stop12h 55m

$595

SeattleTromsø

SEA Seattle/Tacoma Intl - TOS Tromso/Langnes

SEATOS

Seattle/Tacoma Intl

Wed 1/13

2:35 pm-10:20 pm

2 stops22h 45m

Tromso/Langnes

Mon 1/25

1:05 pm-5:00 pm

1 stop12h 55m

$775

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

Can stopping save me money on Seattle to Tromsø flights?

You could potentially save up to 43% 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	11h 45m
Direct flights	None

The fastest flight from Seattle to Tromsø takes 11h 45m

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 11h 45m.
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 August 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 1,938 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.