$465 Cheap Flights from Trondheim (TRD) to Washington (IAD)

View $465 flight on Fri, May 15, 2026Opens in a new window

Popular airlines from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

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

Cheap Flights from Trondheim to Washington (TRD-IAD)

Prices were available within the past 7 days and start at $465 for one-way flights and $612 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Mon, May 18 - Fri, May 29
TRD
Trondheim
IAD
Washington
$612 Roundtrip, found 15 hours ago
$612
Roundtrip
found 15 hours ago
Select Lufthansa flight, departing Mon, May 18 from Trondheim to Washington, returning Fri, May 29, priced at $612 found 15 hours ago
Lufthansa
Sat, May 16 - Tue, May 26
TRD
Trondheim
IAD
Washington
$627 Roundtrip, found 15 hours ago
$627
Roundtrip
found 15 hours ago
Select Lufthansa flight, departing Sat, May 16 from Trondheim to Washington, returning Tue, May 26, priced at $627 found 15 hours ago
Scandinavian Airlines
Tue, May 19 - Thu, May 28
TRD
Trondheim
IAD
Washington
$628 Roundtrip, found 6 days ago
$628
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Tue, May 19 from Trondheim to Washington, returning Thu, May 28, priced at $628 found 6 days ago
Finnair
Sat, May 16 - Sat, May 23
TRD
Trondheim
IAD
Washington
$643 Roundtrip, found 4 days ago
$643
Roundtrip
found 4 days ago
Select Finnair flight, departing Sat, May 16 from Trondheim to Washington, returning Sat, May 23, priced at $643 found 4 days ago
Finnair
Fri, May 15 - Tue, May 26
TRD
Trondheim
IAD
Washington
$643 Roundtrip, found 15 hours ago
$643
Roundtrip
found 15 hours ago
Select Finnair flight, departing Fri, May 15 from Trondheim to Washington, returning Tue, May 26, priced at $643 found 15 hours ago
Finnair
Tue, May 26 - Sat, Jun 6
TRD
Trondheim
IAD
Washington
$651 Roundtrip, found 15 hours ago
$651
Roundtrip
found 15 hours ago
Select Finnair flight, departing Tue, May 26 from Trondheim to Washington, returning Sat, Jun 6, priced at $651 found 15 hours ago
Lufthansa
Fri, May 29 - Tue, Jun 9
TRD
Trondheim
IAD
Washington
$654 Roundtrip, found 15 hours ago
$654
Roundtrip
found 15 hours ago
Select Lufthansa flight, departing Fri, May 29 from Trondheim to Washington, returning Tue, Jun 9, priced at $654 found 15 hours ago
Lufthansa
Sat, May 16 - Tue, May 26
TRD
Trondheim
IAD
Washington
$656 Roundtrip, found 15 hours ago
$656
Roundtrip
found 15 hours ago
Select Lufthansa flight, departing Sat, May 16 from Trondheim to Washington, returning Tue, May 26, priced at $656 found 15 hours ago
Lufthansa
Tue, Jun 2 - Tue, Jun 9
TRD
Trondheim
IAD
Washington
$656 Roundtrip, found 4 days ago
$656
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jun 2 from Trondheim to Washington, returning Tue, Jun 9, priced at $656 found 4 days ago
TAP Portugal
Mon, Mar 9 - Mon, Mar 16
TRD
Trondheim
IAD
Washington
$875 Roundtrip, found 5 days ago
$875
Roundtrip
found 5 days ago
Select TAP Portugal flight, departing Mon, Mar 9 from Trondheim to Washington, returning Mon, Mar 16, priced at $875 found 5 days ago

The Annual Vacation Sale

Members save up to 40% on hotels and homes. Plan this year’s big trip and save.
Book now

Frequently asked questions

How much does a flight from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD) cost?
Snag a cheap one-way flight from $465 or cheap return flight from $612 from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD)?
May is the least expensive month to fly from TRD to IAD. Timing your trip outside of the busy season is often the key to finding better fares.
What is the cheapest airline that flies from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from TRD to IAD. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TRD to IAD?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD)?
Book a flight from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be 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 Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from TRD to IAD just before your journey is typically more expensive. However, if there's some wiggle room with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a TRD to IAD flight and hotel package?
Compared with arranging hotels and flights separately, booking a TRD to IAD flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place takes the hassle out of planning your trip. Simply secure your flights and select from our wide range of hotels, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Vaernes Airport (TRD) to Washington Dulles Intl. Airport (IAD)?
If you reserved your TRD to IAD flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Vaernes
Destination airport
Washington Dulles Intl.
Airlines serving
Finnair, Lufthansa, Scandinavian Airlines, TAP Portugal
Roundtrip price
$612
Distance
3806 mi

Book with confidence

Trondheim to Washington Flights

The cheapest times to fly from Trondheim 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 Trondheim to Washington are during the month of May. You can find some of the cheapest flights from Trondheim to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trondheim to Washington

Sunday is one of the best days to book for cheap flights from Trondheim 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 Trondheim 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 Trondheim to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $465 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 Trondheim 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 Trondheim 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.

 

Trondheim to Washington Flights

*Flight schedules are subject to change.

Explore a world of travel with Expedia

*Available to One Key members.