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 many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport?

As of July 2026, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport.

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.

$380 Cheap Flights from Seattle to Trondheim in 2026

Discover deals from 900+ travel sites with momondo.

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 - 4:35 pm

SEA

TRD

17h 50m

1 stop

6:00 am - 11:52 am

TRD

SEA

14h 52m

1 stop

$583Delta

Wed, Oct 7 - Fri, Oct 16

7:15 am - 11:40 am

SEA

TRD

19h 25m

2 stops

6:00 am - 11:52 am

TRD

SEA

14h 52m

1 stop

$587Delta

Fri, Oct 9 - Sun, Oct 18

5:45 pm - 10:50 pm

SEA

TRD

20h 05m

1 stop

6:00 am - 4:48 pm

TRD

SEA

19h 48m

2 stops

$593KLM

Sun, Oct 11 - Mon, Oct 19

2:40 pm - 4:35 pm

SEA

TRD

16h 55m

1 stop

5:15 pm - 11:50 am

TRD

SEA

27h 35m

1 stop

$594KLM

Sun, Jan 17 - Sun, Jan 24

7:15 am - 11:35 am

SEA

TRD

19h 20m

2 stops

6:00 am - 4:57 pm

TRD

SEA

19h 57m

2 stops

$597Delta

Sun, Oct 11 - Tue, Oct 20

7:15 am - 11:35 am

SEA

TRD

19h 20m

2 stops

6:00 am - 4:48 pm

TRD

SEA

19h 48m

2 stops

$598Delta

Sat, Oct 10 - Mon, Oct 19

5:45 pm - 10:50 pm

SEA

TRD

20h 05m

1 stop

6:00 am - 11:37 am

TRD

SEA

14h 37m

1 stop

$628KLM

Sun, Aug 16 - Fri, Aug 21

3:55 pm - 5:15 pm

SEA

TRD

16h 20m

2 stops

8:55 pm - 1:45 pm

TRD

SEA

49h 50m

2 stops

$636Scandinavian Airlines

Sun, Aug 30 - Sun, Sep 6

3:55 pm - 2:25 pm

SEA

TRD

13h 30m

1 stop

9:30 pm - 1:45 pm

TRD

SEA

49h 15m

2 stops

$637Scandinavian Airlines

Sun, Aug 30 - Sun, Sep 6

7:20 am - 9:40 am

SEA

TRD

17h 20m

2 stops

7:55 pm - 7:05 pm

TRD

SEA

32h 10m

2 stops

$699Scandinavian Airlines

Sun, Jan 17 - Sun, Jan 24

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Scandinavian Airlines flights from Seattle to Trondheim

Our best Scandinavian Airlines deals on Seattle to Trondheim flight tickets

Scandinavian Airlines

Aug 30

SEA3:55 pmSeattle/Tacoma Intl

16h 20m

2 stops

TRD5:15 pmTrondheim Vaernes

Sep 6

TRD8:55 pmTrondheim Vaernes

49h 50m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$636

Scandinavian Airlines

Aug 30

SEA3:55 pmSeattle/Tacoma Intl

13h 30m

1 stop

TRD2:25 pmTrondheim Vaernes

Sep 6

TRD9:30 pmTrondheim Vaernes

49h 15m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$637

Scandinavian Airlines

Jan 17

SEA7:20 amSeattle/Tacoma Intl

17h 20m

2 stops

TRD9:40 amTrondheim Vaernes

Jan 24

TRD7:55 pmTrondheim Vaernes

32h 10m

2 stops

SEA7:05 pmSeattle/Tacoma Intl

$699

Delta flights from Seattle to Trondheim

Our best Delta deals on Seattle to Trondheim flight tickets

Delta

Oct 7

SEA1:45 pmSeattle/Tacoma Intl

17h 50m

1 stop

TRD4:35 pmTrondheim Vaernes

Oct 16

TRD6:00 amTrondheim Vaernes

14h 52m

1 stop

SEA11:52 amSeattle/Tacoma Intl

$583

Delta

Oct 9

SEA7:15 amSeattle/Tacoma Intl

19h 25m

2 stops

TRD11:40 amTrondheim Vaernes

Oct 18

TRD6:00 amTrondheim Vaernes

14h 52m

1 stop

SEA11:52 amSeattle/Tacoma Intl

$587

Delta

Oct 11

SEA7:15 amSeattle/Tacoma Intl

19h 20m

2 stops

TRD11:35 amTrondheim Vaernes

Oct 20

TRD6:00 amTrondheim Vaernes

19h 57m

2 stops

SEA4:57 pmSeattle/Tacoma Intl

$597

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Wed 10/7

1:45 pm-4:35 pm

1 stop17h 50m

Trondheim Vaernes

Fri 10/16

6:00 am-11:52 am

1 stop14h 52m

$583

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Fri 10/9

7:15 am-11:40 am

2 stops19h 25m

Trondheim Vaernes

Sun 10/18

6:00 am-11:52 am

1 stop14h 52m

$587

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 10/11

5:45 pm-10:50 pm

1 stop20h 05m

Trondheim Vaernes

Mon 10/19

6:00 am-4:48 pm

2 stops19h 48m

$593

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 1/17

2:40 pm-4:35 pm

1 stop16h 55m

Trondheim Vaernes

Sun 1/24

5:15 pm-11:50 am

1 stop27h 35m

$594

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 10/11

7:15 am-11:35 am

2 stops19h 20m

Trondheim Vaernes

Tue 10/20

6:00 am-4:57 pm

2 stops19h 57m

$597

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sat 10/10

7:15 am-11:35 am

2 stops19h 20m

Trondheim Vaernes

Mon 10/19

6:00 am-4:48 pm

2 stops19h 48m

$598

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 8/16

5:45 pm-10:50 pm

1 stop20h 05m

Trondheim Vaernes

Fri 8/21

6:00 am-11:37 am

1 stop14h 37m

$628

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 8/30

3:55 pm-5:15 pm

2 stops16h 20m

Trondheim Vaernes

Sun 9/6

8:55 pm-1:45 pm

2 stops49h 50m

$636

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 8/30

3:55 pm-2:25 pm

1 stop13h 30m

Trondheim Vaernes

Sun 9/6

9:30 pm-1:45 pm

2 stops49h 15m

$637

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sun 1/17

7:20 am-9:40 am

2 stops17h 20m

Trondheim Vaernes

Sun 1/24

7:55 pm-7:05 pm

2 stops32h 10m

$699

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 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

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

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

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 05m
Direct flights	None

The fastest flight from Seattle to Trondheim takes 20h 05m

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

Search flight deals

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 05m, 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 many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport?
As of July 2026, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Trondheim Vaernes Airport.
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 1,543 reviews		Search KLM flights

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.