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

Delta and Scandinavian Airlines are the most popular carriers 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.

$270 Cheap Flights from Seattle to Trondheim in 2026

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Find the cheapest flights from Seattle to Trondheim

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:45 pm - 10:50 pm

SEA

TRD

24h 05m

1 stop

5:10 pm - 11:42 am

TRD

SEA

27h 32m

1 stop

$474KLM

Thu, May 7 - Thu, May 14

1:45 pm - 4:35 pm

SEA

TRD

17h 50m

1 stop

6:00 am - 4:53 pm

TRD

SEA

19h 53m

2 stops

$485Delta

Thu, May 7 - Thu, May 14

5:35 pm - 11:35 am

SEA

TRD

33h 00m

1 stop

12:15 pm - 11:45 am

TRD

SEA

32h 30m

1 stop

$523KLM

Sat, Apr 18 - Sat, Apr 25

7:15 am - 11:35 am

SEA

TRD

19h 20m

2 stops

6:00 am - 11:45 am

TRD

SEA

14h 45m

1 stop

$583Delta

Sat, Apr 18 - Sat, Apr 25

3:40 pm - 5:15 pm

SEA

TRD

16h 35m

2 stops

9:20 am - 5:55 pm

TRD

SEA

17h 35m

2 stops

$678Multiple Airlines

Thu, May 7 - Thu, May 14

6:00 am - 11:35 am

SEA

TRD

20h 35m

2 stops

6:00 am - 11:42 am

TRD

SEA

14h 42m

1 stop

$738Delta

Sun, May 3 - Sun, May 10

7:15 am - 11:35 am

SEA

TRD

19h 20m

2 stops

6:00 am - 6:49 pm

TRD

SEA

21h 49m

2 stops

$749Delta

Sun, May 3 - Sun, May 10

3:40 pm - 12:00 am

SEA

TRD

23h 20m

2 stops

7:05 pm - 8:40 pm

TRD

SEA

34h 35m

2 stops

$767Multiple Airlines

Sat, Apr 18 - Sat, Apr 25

1:45 pm - 2:25 pm

SEA

TRD

39h 40m

2 stops

7:45 pm - 10:55 pm

TRD

SEA

36h 10m

2 stops

$793Scandinavian Airlines

Mon, May 4 - Fri, May 8

11:40 am - 2:25 pm

SEA

TRD

41h 45m

2 stops

7:55 pm - 10:31 pm

TRD

SEA

35h 36m

2 stops

$805Scandinavian Airlines

Sun, Apr 26 - Thu, Apr 30

Scandinavian Airlines flights from Seattle to Trondheim

Our best Scandinavian Airlines deals on Seattle to Trondheim flight tickets

Scandinavian Airlines

May 4

SEA1:45 pmSeattle/Tacoma Intl

39h 40m

2 stops

TRD2:25 pmTrondheim Vaernes

May 8

TRD7:45 pmTrondheim Vaernes

36h 10m

2 stops

SEA10:55 pmSeattle/Tacoma Intl

$793

Scandinavian Airlines

Apr 26

SEA11:40 amSeattle/Tacoma Intl

41h 45m

2 stops

TRD2:25 pmTrondheim Vaernes

Apr 30

TRD7:55 pmTrondheim Vaernes

35h 36m

2 stops

SEA10:31 pmSeattle/Tacoma Intl

$805

Scandinavian Airlines

Apr 26

SEA11:40 amSeattle/Tacoma Intl

41h 45m

2 stops

TRD2:25 pmTrondheim Vaernes

Apr 30

TRD7:55 pmTrondheim Vaernes

35h 36m

2 stops

SEA10:31 pmSeattle/Tacoma Intl

$806

KLM flights from Seattle to Trondheim

Our best KLM deals on Seattle to Trondheim flight tickets

KLM

Apr 18

SEA5:35 pmSeattle/Tacoma Intl

33h 00m

1 stop

TRD11:35 amTrondheim Vaernes

Apr 25

TRD12:15 pmTrondheim Vaernes

32h 30m

1 stop

SEA11:45 amSeattle/Tacoma Intl

$523

KLM

Jun 27

SEA1:50 pmSeattle/Tacoma Intl

24h 00m

1 stop

TRD10:50 pmTrondheim Vaernes

Jul 11

TRD6:00 amTrondheim Vaernes

14h 33m

1 stop

SEA11:33 amSeattle/Tacoma Intl

$1,022

KLM

Apr 10

SEA1:45 pmSeattle/Tacoma Intl

12h 55m

1 stop

TRD11:40 amTrondheim Vaernes

Apr 18

TRD12:15 pmTrondheim Vaernes

32h 30m

1 stop

SEA11:45 amSeattle/Tacoma Intl

$1,250

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Thu 5/7

1:45 pm-10:50 pm

1 stop24h 05m

Trondheim Vaernes

Thu 5/14

5:10 pm-11:42 am

1 stop27h 32m

$474

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Thu 5/7

1:45 pm-4:35 pm

1 stop17h 50m

Trondheim Vaernes

Thu 5/14

6:00 am-4:53 pm

2 stops19h 53m

$485

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sat 4/18

5:35 pm-11:35 am

1 stop33h 00m

Trondheim Vaernes

Sat 4/25

12:15 pm-11:45 am

1 stop32h 30m

$523

Quickest round-trip

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sat 4/18

7:15 am-11:35 am

2 stops19h 20m

Trondheim Vaernes

Sat 4/25

6:00 am-11:45 am

1 stop14h 45m

$583

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Thu 5/7

3:40 pm-5:15 pm

2 stops16h 35m

Trondheim Vaernes

Thu 5/14

9:20 am-5:55 pm

2 stops17h 35m

$678

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 5/3

6:00 am-11:35 am

2 stops20h 35m

Trondheim Vaernes

Sun 5/10

6:00 am-11:42 am

1 stop14h 42m

$738

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 5/3

7:15 am-11:35 am

2 stops19h 20m

Trondheim Vaernes

Sun 5/10

6:00 am-6:49 pm

2 stops21h 49m

$749

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sat 4/18

3:40 pm-12:00 am

2 stops23h 20m

Trondheim Vaernes

Sat 4/25

7:05 pm-8:40 pm

2 stops34h 35m

$767

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Mon 5/4

1:45 pm-2:25 pm

2 stops39h 40m

Trondheim Vaernes

Fri 5/8

7:45 pm-10:55 pm

2 stops36h 10m

$793

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 4/26

11:40 am-2:25 pm

2 stops41h 45m

Trondheim Vaernes

Thu 4/30

7:55 pm-10:31 pm

2 stops35h 36m

$805

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted 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	26h 55m
Direct flights	None

The fastest flight from Seattle to Trondheim takes 26h 55m

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

Search flight deals

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 26h 55m, 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.

Why use momondo?

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

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 Trondheim for you.

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

Flights from Seattle to Trondheim with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Seattle to Trondheim flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Seattle to Trondheim now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Trondheim and let you know when they change.