$463 Cheap Flights from Portland (PDX) to Trondheim (TRD)

View $463 flight on Tue, Aug 25, 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to Vaernes Airport (TRD)

Cheap Flights from Portland to Trondheim (PDX-TRD)

Prices were available within the past 7 days and start at $463 for one-way flights and $607 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Nov 3 - Thu, Nov 27
PDX
Portland
TRD
Trondheim
$607 Roundtrip, found 6 days ago
$607
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Nov 3 from Portland to Trondheim, returning Thu, Nov 27, priced at $607 found 6 days ago
Delta
Tue, Nov 4 - Thu, Nov 27
PDX
Portland
TRD
Trondheim
$612 Roundtrip, found 6 days ago
$612
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Nov 4 from Portland to Trondheim, returning Thu, Nov 27, priced at $612 found 6 days ago
KLM
Wed, Oct 29 - Thu, Nov 27
PDX
Portland
TRD
Trondheim
$633 Roundtrip, found 6 days ago
$633
Roundtrip
found 6 days ago
Select KLM flight, departing Wed, Oct 29 from Portland to Trondheim, returning Thu, Nov 27, priced at $633 found 6 days ago
Scandinavian Airlines
Tue, Aug 25 - Tue, Sep 1
PDX
Portland
TRD
Trondheim
$672 Roundtrip, found 2 hours ago
$672
Roundtrip
found 2 hours ago
Select Scandinavian Airlines flight, departing Tue, Aug 25 from Portland to Trondheim, returning Tue, Sep 1, priced at $672 found 2 hours ago
Delta
Tue, Nov 4 - Mon, Dec 1
PDX
Portland
TRD
Trondheim
$675 Roundtrip, found 6 days ago
$675
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Nov 4 from Portland to Trondheim, returning Mon, Dec 1, priced at $675 found 6 days ago
Scandinavian Airlines
Tue, Aug 25 - Tue, Sep 1
PDX
Portland
TRD
Trondheim
$688 Roundtrip, found 2 hours ago
$688
Roundtrip
found 2 hours ago
Select Scandinavian Airlines flight, departing Tue, Aug 25 from Portland to Trondheim, returning Tue, Sep 1, priced at $688 found 2 hours ago
Delta
Tue, Nov 4 - Fri, Nov 28
PDX
Portland
TRD
Trondheim
$690 Roundtrip, found 6 days ago
$690
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Nov 4 from Portland to Trondheim, returning Fri, Nov 28, priced at $690 found 6 days ago
Delta
Thu, Oct 30 - Thu, Nov 27
PDX
Portland
TRD
Trondheim
$721 Roundtrip, found 6 days ago
$721
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Oct 30 from Portland to Trondheim, returning Thu, Nov 27, priced at $721 found 6 days ago
Air Canada
Tue, Aug 18 - Sun, Aug 30
PDX
Portland
TRD
Trondheim
$769 Roundtrip, found 2 hours ago
$769
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Tue, Aug 18 from Portland to Trondheim, returning Sun, Aug 30, priced at $769 found 2 hours ago
British Airways
Tue, Aug 11 - Tue, Aug 25
PDX
Portland
TRD
Trondheim
$782 Roundtrip, found 4 days ago
$782
Roundtrip
found 4 days ago
Select British Airways flight, departing Tue, Aug 11 from Portland to Trondheim, returning Tue, Aug 25, priced at $782 found 4 days ago

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Vaernes Airport (TRD) cost?
Secure a cheap one-way flight from $463 or cheap return flight from $607 from Portland Intl. Airport (PDX) to Vaernes Airport (TRD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Vaernes Airport (TRD)?
The cheapest month to fly from PDX to TRD is November, when there's less demand. Off-peak months are usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Vaernes Airport (TRD)?
To find the cheapest airline flying from PDX to TRD, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Portland Intl. Airport (PDX) to Vaernes Airport (TRD)?
You'll need to catch a flight with a layover if you're traveling from Portland Intl. Airport (PDX) to Vaernes Airport (TRD). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from PDX to TRD?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can change based on the season, 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 Portland Intl. Airport (PDX) to Vaernes Airport (TRD)?
To avoid potential delays on the Portland Intl. Airport (PDX) to Vaernes Airport (TRD) route, aim to fly before 3 PM. Departures after this hour 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 Portland Intl. Airport (PDX) to Vaernes Airport (TRD) last-minute?
Booking your plane ticket from PDX to TRD just before your getaway is usually more expensive. However, if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a PDX to TRD flight and hotel package?
Opting for a PDX to TRD flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of hotels and then add car rentals, activities and flights 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 Portland Intl. Airport (PDX) to Vaernes Airport (TRD)?
Typically, you can reschedule or cancel your PDX to TRD flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need more information, go to our Customer Service portal.

Travel information

Origin airport
Portland Intl.
Destination airport
Vaernes
Airlines serving
Finnair, Scandinavian Airlines
Roundtrip price
$607
Distance
4486 mi

Book with confidence

Portland to Trondheim Flights

The cheapest times to fly from Portland to Trondheim

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 Portland to Trondheim are during the month of November. You can find some of the cheapest flights from Portland to Trondheim with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Trondheim

Sunday is one of the best days to book for cheap flights from Portland to Trondheim: 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 Portland to Trondheim

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 Portland to Trondheim in 2025. You can also book with separate airlines for your outbound and return journeys, from $463 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 Portland to Trondheim 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 Portland to Trondheim 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.

 

Portland to Trondheim Flights

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*Available to One Key members.