HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tromsø

$413+ Cheap flights from Dulles Intl (IAD) to Tromsø (TOS)

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TOS
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Tromsø with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Tromsø

Cheapest flights from Dulles Intl to Tromsø
Explore the most affordable flight options available from Dulles Intl to Tromsø. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:20 pm
IAD
-
TOS
1 stop12h 00m
Scandinavian Airlines
Tue 9/82:00 pm
TOS
-
IAD
2 stops33h 00m
Scandinavian Airlines
Deal found 4/21$742
This Delta deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:50 pm
IAD
-
TOS
1 stop13h 00m
Delta
Sat 11/142:50 pm
TOS
-
IAD
2 stops27h 02m
Delta
Deal found 4/19$754
This FlightHub deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:20 pm
IAD
-
TOS
1 stop12h 00m
Scandinavian Airlines
Wed 9/93:00 pm
TOS
-
IAD
2 stops50h 51m
Scandinavian Airlines
Deal found 4/20$760
This CrystalTravel deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:30 pm
IAD
-
TOS
2 stops19h 50m
Scandinavian Airlines
Tue 9/85:30 pm
TOS
-
IAD
2 stops29h 30m
Scandinavian Airlines
Deal found 4/21$762
This Scandinavian Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:20 pm
IAD
-
TOS
1 stop12h 00m
Scandinavian Airlines
Thu 9/106:00 am
TOS
-
IAD
2 stops17h 00m
Scandinavian Airlines
Deal found 4/20$797
This KAYAK deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:20 pm
IAD
-
TOS
3 stops15h 40m
Scandinavian Airlines
Wed 9/96:50 pm
TOS
-
IAD
3 stops28h 10m
Scandinavian Airlines
Deal found 4/20$803

Find flight deals from Dulles Intl to Tromsø

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Tromsø (TOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 22, 2026.

Round-trip from

$742
(Kiwi.com)

One-way from

$496
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$651
From Washington, D.C. Dulles Intl to Tromso/Langnes
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Tromso/Langnes
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($68 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Tromsø that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 22, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Tromsø that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Mon 8/17

8:20 pm-2:20 pm

1 stop12h 00m

Tromso/Langnes

Wed 9/9

6:00 am-5:00 pm

2 stops17h 00m

$769

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Wed 8/19

8:20 pm-6:00 pm

3 stops15h 40m

Tromso/Langnes

Wed 9/9

6:50 pm-5:00 pm

3 stops28h 10m

$803

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Mon 8/17

8:20 pm-4:55 pm

2 stops14h 35m

Tromso/Langnes

Thu 9/10

6:00 am-5:00 pm

2 stops17h 00m

$803

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Tue 8/18

12:30 pm-3:30 pm

3 stops21h 00m

Tromso/Langnes

Tue 9/8

6:50 pm-5:00 pm

3 stops28h 10m

$805

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Tue 8/18

3:25 pm-2:30 pm

1 stop17h 05m

Tromso/Langnes

Wed 9/9

3:20 pm-1:35 pm

1 stop28h 15m

$990

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Wed 6/10

8:20 pm-6:40 pm

2 stops16h 20m

Tromso/Langnes

Sun 6/14

8:55 pm-5:00 pm

2 stops26h 05m

$1,035

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Wed 8/19

5:55 pm-6:20 pm

2 stops18h 25m

Tromso/Langnes

Tue 9/8

3:20 pm-4:05 pm

1 stop30h 45m

$1,113

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Mon 8/17

3:25 pm-2:30 pm

1 stop17h 05m

Tromso/Langnes

Wed 9/9

3:20 pm-1:35 pm

1 stop28h 15m

$1,120

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Mon 8/17

5:45 pm-6:15 pm

2 stops42h 30m

Tromso/Langnes

Sun 9/6

6:50 pm-8:20 pm

2 stops55h 30m

$1,123

Washington, D.C.Tromsø

IAD - TOS

IADTOS

Washington, D.C. Dulles Intl

Tue 5/19

1:32 pm-8:40 pm

2 stops25h 08m

Tromso/Langnes

Tue 5/26

2:00 pm-5:00 pm

2 stops33h 00m

$1,125

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Dulles Intl to Tromsø

Have a flexible travel schedule? Discover the best time to fly to Tromsø from Dulles Intl 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, D.C. Dulles Intl Airport to Tromsø

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Tromsø?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tromsø (average of $524). Flying from Washington, D.C. Dulles Intl Airport to Tromsø in June is currently the most expensive (average of $1,598). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Tromsø?

Reviews of airlines servicing Tromsø

Get insights into the airlines that provide service to Tromsø. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Tromsø. Reviews last updated April 22, 2026.
Read reviews from past customers who have flown Scandinavian Airlines from Washington, D.C. Dulles Intl Airport to Tromsø. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.3
Good
1,756 reviews

Food

6.7

Overall

7.3

Comfort

7.3

Boarding

7.6

Crew

8.0

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2026

OSL - CPH

The flight was very short. The seats were very comfortable. No television or entertainment.
Scandinavian Airlines
7.3
Good
1,756 reviews
Scandinavian Airlines
7.3
Good
1,756 reviews

Food

6.7

Overall

7.3

Comfort

7.3

Boarding

7.6

Crew

8.0

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2026

OSL - CPH

The flight was very short. The seats were very comfortable. No television or entertainment.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Tromsø. 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 Tromsø from Washington, D.C. Dulles Intl?

    If you book a flight to Tromsø from Washington, D.C. Dulles Intl, you will be flying to Tromso/Langnes, which is the city’s only airport. Tromso/Langnes (TOS) is located 2.5 mi from the center of Tromsø. There are 0 flights from Washington, D.C. Dulles Intl to Tromso/Langnes per day from 1 airline.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Tromsø?

    Departing from Washington, D.C. Dulles Intl Airport to Tromsø will take you 12h. There are 3865 mi between Washington, D.C. Dulles Intl Airport and Tromsø.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Tromsø round-trip?

    Scandinavian Airlines, at $457, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Tromsø.. Scandinavian Airlines is currently priced 46% below the average price you’ll pay for this route.

  • Can I find deals for flights from Dulles Intl to Tromsø that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Tromsø flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Tromsø?

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

  • Can I find deals for business class flights from Dulles Intl to Tromsø?

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

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Tromsø?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tromsø (average of $524). Flying from Washington, D.C. Dulles Intl Airport to Tromsø in June is currently the most expensive (average of $1,598). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Dulles Intl to Tromsø

Discover the top airline that operate flights from Dulles Intl to Tromsø. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$457Average$684FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.