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 December 2025, 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.

$552 Cheap Flights from Seattle to Tromsø in 2025/26

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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.

6:50 pm - 9:30 am

SEA

TOS

29h 40m3 stops

6:45 pm - 7:18 pm

TOS

SEA

33h 33m2 stops

$560Finnair

Fri, Jan 30 - Fri, Feb 6

1:35 pm - 6:15 pm

SEA

TOS

19h 40m2 stops

6:50 pm - 12:52 am

TOS

SEA

39h 02m2 stops

$592Multiple Airlines

Tue, May 12 - Fri, May 15

5:40 pm - 6:15 pm

SEA

TOS

15h 35m1 stop

6:50 pm - 6:57 pm

TOS

SEA

33h 07m2 stops

$593Multiple Airlines

Tue, May 12 - Fri, May 15

6:50 pm - 5:05 pm

SEA

TOS

37h 15m2 stops

1:30 pm - 11:51 pm

TOS

SEA

43h 21m2 stops

$637Multiple Airlines

Sat, Jan 31 - Sat, Feb 7

6:50 pm - 10:20 pm

SEA

TOS

18h 30m2 stops

11:05 am - 12:20 pm

TOS

SEA

34h 15m2 stops

$699Lufthansa

Sun, May 3 - Fri, May 8

6:50 pm - 10:20 pm

SEA

TOS

18h 30m2 stops

3:15 pm - 12:20 pm

TOS

SEA

30h 05m1 stop

$721Lufthansa

Sun, May 3 - Fri, May 8

3:10 pm - 9:20 am

SEA

TOS

33h 10m1 stop

12:35 pm - 11:25 am

TOS

SEA

31h 50m2 stops

$758Multiple Airlines

Fri, Jan 30 - Fri, Feb 6

6:50 pm - 9:40 am

SEA

TOS

29h 50m3 stops

10:10 am - 7:18 pm

TOS

SEA

42h 08m3 stops

$769Finnair

Sat, Jan 31 - Sat, Feb 7

1:30 pm - 6:40 pm

SEA

TOS

20h 10m2 stops

6:00 am - 5:39 pm

TOS

SEA

20h 39m2 stops

$779Air France

Tue, May 12 - Fri, May 15

2:10 pm - 4:30 pm

SEA

TOS

41h 20m2 stops

3:20 pm - 12:20 pm

TOS

SEA

30h 00m1 stop

$791Lufthansa

Tue, May 12 - Fri, May 15

Lufthansa flights from Seattle to Tromsø

Our best Lufthansa deals on Seattle to Tromsø flight tickets

Lufthansa

May 3

SEA6:50 pmSeattle/Tacoma Intl

18h 30m

2 stops

TOS10:20 pmTromso/Langnes

May 8

TOS11:05 amTromso/Langnes

34h 15m

2 stops

SEA12:20 pmSeattle/Tacoma Intl

$699

Find similar

Lufthansa

May 3

SEA6:50 pmSeattle/Tacoma Intl

36h 40m

2 stops

TOS4:30 pmTromso/Langnes

May 8

TOS8:00 amTromso/Langnes

37h 20m

2 stops

SEA12:20 pmSeattle/Tacoma Intl

$704

Find similar

Lufthansa

May 3

SEA6:50 pmSeattle/Tacoma Intl

18h 30m

2 stops

TOS10:20 pmTromso/Langnes

May 8

TOS3:15 pmTromso/Langnes

30h 05m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

$721

Find similar

Finnair flights from Seattle to Tromsø

Our best Finnair deals on Seattle to Tromsø flight tickets

Finnair

Jan 30

SEA6:50 pmSeattle/Tacoma Intl

29h 40m

3 stops

TOS9:30 amTromso/Langnes

Feb 6

TOS6:45 pmTromso/Langnes

33h 33m

2 stops

SEA7:18 pmSeattle/Tacoma Intl

$560

Find similar

Finnair

Jan 31

SEA6:50 pmSeattle/Tacoma Intl

29h 50m

3 stops

TOS9:40 amTromso/Langnes

Feb 7

TOS10:10 amTromso/Langnes

42h 08m

3 stops

SEA7:18 pmSeattle/Tacoma Intl

$769

Find similar

Finnair

Jan 23

SEA1:35 pmSeattle/Tacoma Intl

33h 50m

2 stops

TOS8:25 amTromso/Langnes

Jan 27

TOS9:20 amTromso/Langnes

45h 27m

3 stops

SEA9:47 pmSeattle/Tacoma Intl

$1,087

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 1/30

6:50 pm-9:30 am

3 stops29h 40m

Tromso/Langnes

Fri 2/6

6:45 pm-7:18 pm

2 stops33h 33m

$560

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 5/12

1:35 pm-6:15 pm

2 stops19h 40m

Tromso/Langnes

Fri 5/15

6:50 pm-12:52 am

2 stops39h 02m

$592

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-6:57 pm

2 stops33h 07m

$593

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sat 1/31

6:50 pm-5:05 pm

2 stops37h 15m

Tromso/Langnes

Sat 2/7

1:30 pm-11:51 pm

2 stops43h 21m

$637

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sun 5/3

6:50 pm-10:20 pm

2 stops18h 30m

Tromso/Langnes

Fri 5/8

11:05 am-12:20 pm

2 stops34h 15m

$699

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sun 5/3

6:50 pm-10:20 pm

2 stops18h 30m

Tromso/Langnes

Fri 5/8

3:15 pm-12:20 pm

1 stop30h 05m

$721

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Fri 1/30

3:10 pm-9:20 am

1 stop33h 10m

Tromso/Langnes

Fri 2/6

12:35 pm-11:25 am

2 stops31h 50m

$758

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Sat 1/31

6:50 pm-9:40 am

3 stops29h 50m

Tromso/Langnes

Sat 2/7

10:10 am-7:18 pm

3 stops42h 08m

$769

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 5/12

1:30 pm-6:40 pm

2 stops20h 10m

Tromso/Langnes

Fri 5/15

6:00 am-5:39 pm

2 stops20h 39m

$779

SeattleTromsø

SEA - TOS

SEATOS

Seattle/Tacoma Intl

Tue 5/12

2:10 pm-4:30 pm

2 stops41h 20m

Tromso/Langnes

Fri 5/15

3:20 pm-12:20 pm

1 stop30h 00m

$791

Flights are sorted by cheapest round-trip flights first.

Sorted 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

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.

What is the cheapest day to depart on your flight to Tromsø?

On average, the least expensive day to fly to Tromsø from Seattle is on a Monday. momondo users have found tickets for Monday departures for as low as $578. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $699.

What is the cheapest time of day to depart on your flight to Tromsø?

Our data shows that the cheapest Seattle to Tromsø flights are usually those with departure times at noon. Our users have found flights to Tromsø at noon for as low as $575. Flights in the afternoon are often more expensive with an average ticket price of $650.

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	21h 25m
Direct flights	None

The fastest flight from Seattle to Tromsø takes 21h 25m

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 21h 25m.
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 December 2025, 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 1,607 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.