$574+ Cheap flights from Washington to Trondheim (TRD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TRD
Dec 3 — Dec 101
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Washington to Trondheim 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 Washington to Trondheim
Keep the following information in mind while searching for Washington to Trondheim flight deals. Data was last updated November 3, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $574 (Delta) |
Find 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 November 3, 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 November 3, 2025.
This Delta deal was found by Cheapflights users on 11/1. 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.
Wed 4/292:05 pmSEA - TRD
1 stop17h 25mDelta
Sun 5/36:00 amTRD - SEA
1 stop18h 50mDelta
Deal found 11/1![Delta logo]()
$574
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Trondheim 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 November 3, 2025.
Use the filters below to find and compare flights from Washington to Trondheim that are best for you.
Fly from
Washington
Fly to
Trondheim
Route
Depart
Return
Price
SeattleTrondheim
SEA - TRD
SEATRD
Seattle/Tacoma Intl
Wed 4/29
2:05 pm-4:30 pm
1 stop17h 25m
Trondheim Vaernes
Sun 5/3
6:00 am-3:50 pm
1 stop18h 50m
$574
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.