What is the cheapest airline that flies from Seattle/Tacoma Intl to Trondheim Vaernes?

Lufthansa is the most popular carrier operating from Seattle/Tacoma Intl to Trondheim Vaernes

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

Prices for flights from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport were last updated today.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport.

What documentation or ID do you need to fly to Trondheim Vaernes Airport?

The required travel and health documents for your Trondheim Vaernes 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 Trondheim Vaernes Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$531 Cheap Flights from Seattle to Trondheim in 2026

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Find the cheapest flights from Seattle to Trondheim

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:35 am - 9:40 am

SEA

TRD

40h 05m

2 stops

7:45 pm - 1:45 pm

TRD

SEA

27h 00m

1 stop

$887Scandinavian Airlines

Mon, Aug 3 - Mon, Aug 31

8:35 am - 9:40 am

SEA

TRD

40h 05m

2 stops

7:55 pm - 1:45 pm

TRD

SEA

26h 50m

2 stops

$891Scandinavian Airlines

Mon, Aug 3 - Mon, Aug 31

10:35 am - 2:40 pm

SEA

TRD

19h 05m

3 stops

7:55 pm - 1:45 pm

TRD

SEA

26h 50m

2 stops

$1,011Scandinavian Airlines

Mon, Aug 3 - Mon, Aug 31

1:50 pm - 4:35 pm

SEA

TRD

17h 45m

1 stop

6:00 am - 11:37 am

TRD

SEA

14h 37m

1 stop

$1,048KLM

Mon, Aug 3 - Mon, Aug 31

8:00 am - 6:20 pm

SEA

TRD

25h 20m

3 stops

9:25 am - 5:55 pm

TRD

SEA

17h 30m

3 stops

$1,402Multiple Airlines

Mon, Aug 3 - Mon, Aug 31

Scandinavian Airlines flights from Seattle to Trondheim

Our best Scandinavian Airlines deals on Seattle to Trondheim flight tickets

Scandinavian Airlines

Aug 3

SEA8:35 amSeattle/Tacoma Intl

40h 05m

2 stops

TRD9:40 amTrondheim Vaernes

Aug 31

TRD7:45 pmTrondheim Vaernes

27h 00m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

$887

Scandinavian Airlines

Aug 3

SEA8:35 amSeattle/Tacoma Intl

40h 05m

2 stops

TRD9:40 amTrondheim Vaernes

Aug 31

TRD7:55 pmTrondheim Vaernes

26h 50m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$891

Scandinavian Airlines

Aug 3

SEA10:35 amSeattle/Tacoma Intl

19h 05m

3 stops

TRD2:40 pmTrondheim Vaernes

Aug 31

TRD7:55 pmTrondheim Vaernes

26h 50m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$1,011

KLM flights from Seattle to Trondheim

Our best KLM deals on Seattle to Trondheim flight tickets

KLM

Apr 23

SEA5:35 pmSeattle/Tacoma Intl

20h 15m

1 stop

TRD10:50 pmTrondheim Vaernes

Apr 30

TRD12:10 pmTrondheim Vaernes

32h 30m

1 stop

SEA11:40 amSeattle/Tacoma Intl

$597

KLM

Apr 23

SEA5:35 pmSeattle/Tacoma Intl

33h 05m

1 stop

TRD11:40 amTrondheim Vaernes

Apr 30

TRD5:10 pmTrondheim Vaernes

27h 30m

1 stop

SEA11:40 amSeattle/Tacoma Intl

$732

KLM

Apr 23

SEA1:45 pmSeattle/Tacoma Intl

24h 05m

1 stop

TRD10:50 pmTrondheim Vaernes

Apr 30

TRD12:10 pmTrondheim Vaernes

16h 54m

2 stops

SEA8:04 pmSeattle/Tacoma Intl

$767

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Mon 8/3

8:35 am-9:40 am

2 stops40h 05m

Trondheim Vaernes

Mon 8/31

7:45 pm-1:45 pm

1 stop27h 00m

$887

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Mon 8/3

8:35 am-9:40 am

2 stops40h 05m

Trondheim Vaernes

Mon 8/31

7:55 pm-1:45 pm

2 stops26h 50m

$891

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Mon 8/3

10:35 am-2:40 pm

3 stops19h 05m

Trondheim Vaernes

Mon 8/31

7:55 pm-1:45 pm

2 stops26h 50m

$1,011

Quickest round-trip

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Mon 8/3

1:50 pm-4:35 pm

1 stop17h 45m

Trondheim Vaernes

Mon 8/31

6:00 am-11:37 am

1 stop14h 37m

$1,048

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Mon 8/3

8:00 am-6:20 pm

3 stops25h 20m

Trondheim Vaernes

Mon 8/31

9:25 am-5:55 pm

3 stops17h 30m

$1,402

Cheapest one-way

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sat 6/13

10:30 am-8:30 pm

3 stops49h 00m

$531

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sat 6/13

3:40 pm-9:40 am

2 stops33h 00m

$657

Quickest one-way

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sat 6/13

2:10 pm-5:50 pm

1 stop18h 40m

$882

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Seattle to Trondheim

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 Trondheim flights?

You could potentially save up to 19% on your flight if you consider stops on a Seattle to Trondheim flight.

When to book flights from Seattle to Trondheim

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

Estimated round-trip price

Cheap Seattle to Trondheim (SEA to TRD) flight deals and tips

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

Fastest flight time	20h 15m
Direct flights	None

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

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

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Frequently asked questions about flying from Seattle to Trondheim

How far is Seattle/Tacoma Intl to Trondheim Vaernes by plane?
Trondheim Vaernes is 4341.0 mi away from Seattle/Tacoma Intl. Flights usually cover this in 20h 15m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport were last updated today.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport.
What documentation or ID do you need to fly to Trondheim Vaernes Airport?
The required travel and health documents for your Trondheim Vaernes 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 Trondheim Vaernes 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 Trondheim?
Based on momondo bookings for flights between Seattle and Trondheim, the leading airline is KLM, making up 100% of the total bookings.

Best airlines flying from Seattle to Trondheim

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

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $510	Free Cancellation	Rating 7.8 1,501 reviews		Search KLM flights

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