$590 Cheap Flights from Tromsø (TOS) to Washington (DCA)

View $590 flight on Sun, Jan 4, 2026Opens in a new window

Popular airlines from Tromsø (TOS-Langnes) to Ronald Reagan Washington National Airport (DCA)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Tromsø to Washington (TOS-DCA)

Prices were available within the past 7 days and start at $590 for one-way flights and $756 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Wed, Aug 20 - Sun, Aug 31
TOS
Tromsø
DCA
Washington
$756 Roundtrip, found 6 days ago
$756
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Wed, Aug 20 from Tromsø to Washington, returning Sun, Aug 31, priced at $756 found 6 days ago
Scandinavian Airlines
Wed, Aug 20 - Sun, Aug 24
TOS
Tromsø
DCA
Washington
$838 Roundtrip, found 6 days ago
$838
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Wed, Aug 20 from Tromsø to Washington, returning Sun, Aug 24, priced at $838 found 6 days ago
Scandinavian Airlines
Mon, Aug 25 - Sun, Aug 31
TOS
Tromsø
DCA
Washington
$866 Roundtrip, found 6 days ago
$866
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Mon, Aug 25 from Tromsø to Washington, returning Sun, Aug 31, priced at $866 found 6 days ago
Finnair
Sat, Nov 29 - Wed, Dec 3
TOS
Tromsø
DCA
Washington
$889 Roundtrip, found 5 days ago
$889
Roundtrip
found 5 days ago
Select Finnair flight, departing Sat, Nov 29 from Tromsø to Washington, returning Wed, Dec 3, priced at $889 found 5 days ago
Scandinavian Airlines
Fri, Aug 22 - Mon, Aug 25
TOS
Tromsø
DCA
Washington
$934 Roundtrip, found 6 days ago
$934
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Fri, Aug 22 from Tromsø to Washington, returning Mon, Aug 25, priced at $934 found 6 days ago
Scandinavian Airlines
Thu, Aug 21 - Sat, Aug 30
TOS
Tromsø
DCA
Washington
$935 Roundtrip, found 6 days ago
$935
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Thu, Aug 21 from Tromsø to Washington, returning Sat, Aug 30, priced at $935 found 6 days ago
Finnair
Sat, Nov 29 - Wed, Dec 3
TOS
Tromsø
DCA
Washington
$992 Roundtrip, found 5 days ago
$992
Roundtrip
found 5 days ago
Select Finnair flight, departing Sat, Nov 29 from Tromsø to Washington, returning Wed, Dec 3, priced at $992 found 5 days ago
KLM
Fri, Aug 22 - Mon, Aug 25
TOS
Tromsø
DCA
Washington
$998 Roundtrip, found 6 days ago
$998
Roundtrip
found 6 days ago
Select KLM flight, departing Fri, Aug 22 from Tromsø to Washington, returning Mon, Aug 25, priced at $998 found 6 days ago
Finnair
Sat, Nov 29 - Wed, Dec 3
TOS
Tromsø
DCA
Washington
$1,003 Roundtrip, found 5 days ago
$1,003
Roundtrip
found 5 days ago
Select Finnair flight, departing Sat, Nov 29 from Tromsø to Washington, returning Wed, Dec 3, priced at $1,003 found 5 days ago
Scandinavian Airlines
Mon, Aug 25 - Tue, Aug 26
TOS
Tromsø
DCA
Washington
$1,028 Roundtrip, found 6 days ago
$1,028
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Mon, Aug 25 from Tromsø to Washington, returning Tue, Aug 26, priced at $1,028 found 6 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $684
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $684
Flights from Tromsø (TOS) to Washington (DCA)
Origin airport
Langnes
Destination airport
Ronald Reagan Washington National
Roundtrip price
$755
Distance
3864 mi

Tromsø to Washington Flights

The cheapest times to fly from Tromsø to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Tromsø to Washington are during the month of August. You can find some of the cheapest flights from Tromsø to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tromsø to Washington

Sunday is one of the best days to book for cheap flights from Tromsø to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Tromsø to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Tromsø to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $590 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Tromsø to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Tromsø to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA) cost?
Get a cheap one-way flight from $590 or cheap return flight from $756 from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA)?
The cheapest month to fly from TOS to DCA is August, when demand is low. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA)?
To find the cheapest airline that'll fly you from TOS to DCA, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA)?
Direct flights from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TOS to DCA?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA)?
To avoid potential delays on the Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA) last-minute?
Holding off until just before your trip to book a flight from TOS to DCA generally means paying more. While you may find some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open for the best chance of getting a bargain.
Is it cheaper to book a TOS to DCA flight and hotel package?
Securing a TOS to DCA flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our wide range of accommodations and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Langnes Airport (TOS) to Ronald Reagan Washington National Airport (DCA)?
In most instances, you can cancel or modify your TOS to DCA flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want further information, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.