$441 Cheap Flights from Philadelphia (PHL) to Trondheim (TRD)

View $441 flight on Wed, Aug 5, 2026Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD)

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Cheap Flights from Philadelphia to Trondheim (PHL-TRD)

Prices were available within the past 7 days and start at $441 for one-way flights and $518 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sat, Dec 6 - Sun, Dec 14
PHL
Philadelphia
TRD
Trondheim
$518 Roundtrip, found 3 days ago
$518
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Sat, Dec 6 from Philadelphia to Trondheim, returning Sun, Dec 14, priced at $518 found 3 days ago
Delta
Mon, Nov 17 - Wed, Dec 3
PHL
Philadelphia
TRD
Trondheim
$530 Roundtrip, found 2 days ago
$530
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Nov 17 from Philadelphia to Trondheim, returning Wed, Dec 3, priced at $530 found 2 days ago
Scandinavian Airlines
Thu, Nov 20 - Wed, Dec 10
PHL
Philadelphia
TRD
Trondheim
$548 Roundtrip, found 2 days ago
$548
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Thu, Nov 20 from Philadelphia to Trondheim, returning Wed, Dec 10, priced at $548 found 2 days ago
KLM
Tue, Nov 25 - Fri, Dec 5
PHL
Philadelphia
TRD
Trondheim
$556 Roundtrip, found 2 days ago
$556
Roundtrip
found 2 days ago
Select KLM flight, departing Tue, Nov 25 from Philadelphia to Trondheim, returning Fri, Dec 5, priced at $556 found 2 days ago
Delta
Tue, Oct 14 - Fri, Oct 24
PHL
Philadelphia
TRD
Trondheim
$560 Roundtrip, found 2 days ago
$560
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Oct 14 from Philadelphia to Trondheim, returning Fri, Oct 24, priced at $560 found 2 days ago
Delta
Wed, Nov 26 - Fri, Dec 5
PHL
Philadelphia
TRD
Trondheim
$580 Roundtrip, found 2 days ago
$580
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 26 from Philadelphia to Trondheim, returning Fri, Dec 5, priced at $580 found 2 days ago
Delta
Wed, Oct 22 - Mon, Nov 3
PHL
Philadelphia
TRD
Trondheim
$582 Roundtrip, found 2 days ago
$582
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Oct 22 from Philadelphia to Trondheim, returning Mon, Nov 3, priced at $582 found 2 days ago
Delta
Sat, Nov 15 - Wed, Dec 3
PHL
Philadelphia
TRD
Trondheim
$586 Roundtrip, found 2 days ago
$586
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 15 from Philadelphia to Trondheim, returning Wed, Dec 3, priced at $586 found 2 days ago
Lufthansa
Wed, Aug 5 - Sun, Aug 16
PHL
Philadelphia
TRD
Trondheim
$869 Roundtrip, found 2 days ago
$869
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Wed, Aug 5 from Philadelphia to Trondheim, returning Sun, Aug 16, priced at $869 found 2 days ago
Finnair
Wed, Aug 5 - Sun, Aug 16
PHL
Philadelphia
TRD
Trondheim
$1,001 Roundtrip, found 2 days ago
$1,001
Roundtrip
found 2 days ago
Select Finnair flight, departing Wed, Aug 5 from Philadelphia to Trondheim, returning Sun, Aug 16, priced at $1,001 found 2 days ago

Alternative airports near Trondheim

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

Select flight to Vaernes TRD. Cheapest and Closest option available. Average driving time to city center is 29 minutes. Flights from $530
TRD
Vaernes
CheapestClosest
Average driving time to city center29 min
Flights from $530

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD) cost?
Lock in a cheap one-way flight from $441 or cheap return flight from $518 from Philadelphia Intl. Airport (PHL) 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 Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD)?
December is the cheapest month to fly from PHL to TRD. Traveling outside of peak seasons is often the key to finding better fares.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from PHL to TRD. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD)?
Nonstop flights from Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHL to TRD?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD)?
To avoid potential delays on the Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD) route, travel before 3 PM. Flights 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 Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD) last-minute?
Holding off until just before your departure to book a ticket from PHL to TRD often results in higher prices. While you might find some last-minute discounts, there's no guarantee. Keep your travel schedule open to maximize your chances of snagging a bargain.
Is it cheaper to book a PHL to TRD flight and hotel package?
Opting for a PHL to TRD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our impressive range of hotels and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Vaernes Airport (TRD)?
If you booked your PHL to TRD flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket 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 want more information.

Travel information

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Vaernes
Roundtrip price
$517
Distance
3687 mi

Book with confidence

Book with confidence

Philadelphia to Trondheim Flights

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

 

The best time to book a flight from Philadelphia to Trondheim

Sunday is one of the best days to book for cheap flights from Philadelphia 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 Philadelphia 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 Philadelphia to Trondheim in 2025. You can also book with separate airlines for your outbound and return journeys, from $441 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 Philadelphia 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 Philadelphia 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.

 

Philadelphia to Trondheim Flights

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*Available to One Key members.