How long is the flight from State of Washington to Trondheim?

Airlines like KLM fly from State of Washington to Trondheim in about 33h. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4358 mi.

In terms of precipitation, rainfall in Trondheim ranges from 1.8 - 4.3 inches per month. September is typically the wettest month, when rainfall can reach 4.3 in. April is typically the driest time to visit Trondheim when rainfall is around 1.8 in.

If weather is an important factor for your trip to Trondheim, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 55.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

What is the cheapest time of day to fly from WA to TRD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Trondheim as you normally would.

What airport do you fly into for flights to Trondheim from Washington?

Located just 16.4 mi from the city center, Trondheim Vaernes (TRD) is the airport most travelers will use when flying to Trondheim from Washington.

Can I find deals for flights from Washington to Trondheim that include hotel bookings?

Yes. In addition to deals on Washington to Trondheim flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington to Trondheim?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Trondheim.

Can I find deals for business class flights from Washington to Trondheim?

Yes. Cheapflights offers flight deals from Washington to Trondheim by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$424+ Flights from Washington to Trondheim

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Cheap flight deals from Washington to Trondheim

Best flights from Washington to Trondheim
Discover carefully curated flight deals from Washington to Trondheim that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Tue 4/215:35 pmSEA - TRD

1 stop33h 00mKLM

Thu 4/305:10 pmTRD - SEA

1 stop32h 20mKLM

Deal found 12/16

$514

Wed 1/147:10 amSEA - TRD

2 stops24h 25mDelta

Thu 1/296:15 amTRD - SEA

1 stop14h 35mDelta

Deal found 12/17

$520

Wed 1/143:10 pmSEA - TRD

1 stop16h 25mKLM

Thu 1/296:15 amTRD - SEA

1 stop14h 35mKLM

Deal found 12/17

$515

Sat 1/317:10 amSEA - TRD

2 stops24h 25mDelta

Sat 2/76:15 amTRD - SEA

1 stop14h 25mDelta

Deal found 12/16

$520

Thu 1/153:10 pmSEA - TRD

1 stop22h 45mKLM

Wed 1/286:15 amTRD - SEA

1 stop14h 35mKLM

Deal found 12/17

$515

Wed 1/147:15 amSEA - TRD

2 stops24h 20mDelta

Wed 1/286:15 amTRD - SEA

1 stop14h 35mDelta

Deal found 12/17

$520

Wed 1/143:10 pmSEA - TRD

1 stop16h 25mKLM

Tue 1/276:15 amTRD - SEA

1 stop14h 35mKLM

Deal found 12/17

$515

Thu 1/159:25 amSEA - TRD

2 stops22h 10mDelta

Thu 1/296:15 amTRD - SEA

1 stop14h 35mDelta

Deal found 12/17

$520

Thu 1/153:10 pmSEA - TRD

1 stop16h 25mKLM

Thu 1/296:15 amTRD - SEA

1 stop14h 35mKLM

Deal found 12/17

$515

Thu 1/153:10 pmSEA - TRD

1 stop16h 25mKLM

Tue 1/275:10 pmTRD - SEA

1 stop27h 40mKLM

Deal found 12/17

$515

Tue 1/133:10 pmSEA - TRD

1 stop16h 25mKLM

Tue 1/206:15 amTRD - SEA

1 stop14h 35mKLM

Deal found 12/15

$516

Last-minute flights from Washington to Trondheim
Discover last-minute flight deals from Washington to Trondheim. Data last updated December 18, 2025 and is based on user searches.

Tue 1/133:10 pmSEA - TRD

1 stop16h 25mKLM

Tue 1/206:15 amTRD - SEA

1 stop14h 35mKLM

Deal found 12/15

$516

Tue 1/131:30 pmSEA - TRD

3 stops22h 00mScandinavian Airlines

Tue 1/207:45 pmTRD - SEA

2 stops35h 40mScandinavian Airlines

Deal found 12/15

$805

Wed 1/143:10 pmSEA - TRD

1 stop16h 25mKLM

Wed 1/285:10 pmTRD - SEA

1 stop27h 40mKLM

Deal found 12/17

$515

Wed 1/147:10 amSEA - TRD

2 stops24h 25mDelta

Thu 1/296:15 amTRD - SEA

1 stop14h 35mDelta

Deal found 12/17

$520

Wed 1/147:10 amSEA - TRD

2 stops24h 25mDelta

Tue 1/276:15 amTRD - SEA

2 stops19h 39mDelta

Deal found 12/17

$530

Wed 1/141:30 pmSEA - TRD

3 stops22h 00mScandinavian Airlines

Wed 1/285:30 amTRD - SEA

2 stops25h 55mScandinavian Airlines

Deal found 12/17

$804

Fri 1/237:10 amSEA - TRD

2 stops22h 20mScandinavian Airlines

Tue 1/277:45 pmTRD - SEA

2 stops35h 40mScandinavian Airlines

Deal found 12/15

$656

Sat 1/312:02 pmSEA - TRD

3 stops21h 48mScandinavian Airlines

Sat 2/710:20 amTRD - SEA

2 stops20h 39mScandinavian Airlines

Deal found 12/16

$925

One-way flights from Washington to Trondheim
Search for one-way flight options from Washington to Trondheim. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Sat 3/73:05 pmSEA - TRD

1 stop22h 50mKLM

Deal found 12/16

$424

Sat 3/77:10 amSEA - TRD

2 stops24h 25mDelta

Deal found 12/16

$429

Sat 3/72:00 pmSEA - TRD

3 stops32h 50mMultiple Airlines

Deal found 12/16

$453

Find flight deals from Washington to Trondheim

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$514 (KLM)
One-way from	$424 (KLM)

Provider with most accurate pricing for Seattle/Tacoma Intl-Trondheim Vaernes flight deals.

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From Washington to Trondheim Vaernes

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One-way flight from Washington to Trondheim Vaernes

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to Trondheim that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Tue 4/21

5:35 pm-11:35 am

1 stop33h 00m

Trondheim Vaernes

Thu 4/30

5:10 pm-4:30 pm

1 stop32h 20m

$514

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Wed 1/14

3:10 pm-4:35 pm

1 stop16h 25m

Trondheim Vaernes

Thu 1/29

6:15 am-11:50 am

1 stop14h 35m

$515

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Thu 1/15

3:10 pm-10:55 pm

1 stop22h 45m

Trondheim Vaernes

Wed 1/28

6:15 am-11:50 am

1 stop14h 35m

$515

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Wed 1/14

3:10 pm-4:35 pm

1 stop16h 25m

Trondheim Vaernes

Tue 1/27

6:15 am-11:50 am

1 stop14h 35m

$515

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Thu 1/15

3:10 pm-4:35 pm

1 stop16h 25m

Trondheim Vaernes

Thu 1/29

6:15 am-11:50 am

1 stop14h 35m

$515

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Thu 1/15

3:10 pm-4:35 pm

1 stop16h 25m

Trondheim Vaernes

Tue 1/27

5:10 pm-11:50 am

1 stop27h 40m

$515

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Tue 1/13

3:10 pm-4:35 pm

1 stop16h 25m

Trondheim Vaernes

Tue 1/20

6:15 am-11:50 am

1 stop14h 35m

$516

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Wed 1/14

7:10 am-4:35 pm

2 stops24h 25m

Trondheim Vaernes

Thu 1/29

6:15 am-11:50 am

1 stop14h 35m

$520

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Sat 1/31

7:10 am-4:35 pm

2 stops24h 25m

Trondheim Vaernes

Sat 2/7

6:15 am-11:40 am

1 stop14h 25m

$520

SeattleTrondheim

SEA - TRD

SEATRD

Seattle/Tacoma Intl

Wed 1/14

7:15 am-4:35 pm

2 stops24h 20m

Trondheim Vaernes

Wed 1/28

6:15 am-11:50 am

1 stop14h 35m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 13 results

Best time to book a flight from Washington to Trondheim

Have a flexible travel schedule? Discover the best time to fly to Trondheim from Washington with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Trondheim

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Trondheim from Washington?
Located just 16.4 mi from the city center, Trondheim Vaernes (TRD) is the airport most travelers will use when flying to Trondheim from Washington.
How long is the flight from State of Washington to Trondheim?
Airlines like KLM fly from State of Washington to Trondheim in about 33h. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4358 mi.
Can I find deals for flights from Washington to Trondheim that include hotel bookings?
Yes. In addition to deals on Washington to Trondheim flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Trondheim?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Trondheim.
Can I find deals for business class flights from Washington to Trondheim?
Yes. Cheapflights offers flight deals from Washington to Trondheim by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$424+ Cheap flights from Washington to Trondheim (TRD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Trondheim with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheap flight deals from Washington to Trondheim

Best flights from Washington to TrondheimDiscover carefully curated flight deals from Washington to Trondheim that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Discover carefully curated flight deals from Washington to Trondheim that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Find flight deals from Washington to Trondheim

Keep the following information in mind while searching for Washington to Trondheim flight deals. Data was last updated December 18, 2025.

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Most trusted provider

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to Trondheim that are best for you.

Best time to book a flight from Washington to Trondheim

Have a flexible travel schedule? Discover the best time to fly to Trondheim from Washington with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington to Trondheim

Related info for your journey

Find useful and relevant information for your journey from Washington to Trondheim. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Trondheim from Washington?

How long is the flight from State of Washington to Trondheim?

Can I find deals for flights from Washington to Trondheim that include hotel bookings?

How can I find direct flights from Washington to Trondheim?

Can I find deals for business class flights from Washington to Trondheim?

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Best flights from Washington to Trondheim
Discover carefully curated flight deals from Washington to Trondheim that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.