$394 Cheap Flights from Chicago (ORD) to Trondheim (TRD)

View $394 flight on Wed, Nov 12, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD)

Cheap Flights from Chicago to Trondheim (ORD-TRD)

Prices were available within the past 7 days and start at $394 for one-way flights and $423 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Fri, Nov 28 - Wed, Dec 3
ORD
Chicago
TRD
Trondheim
$423 Roundtrip, found 1 day ago
$423
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Fri, Nov 28 from Chicago to Trondheim, returning Wed, Dec 3, priced at $423 found 1 day ago
Scandinavian Airlines
Fri, Jan 9 - Wed, Jan 28
ORD
Chicago
TRD
Trondheim
$424 Roundtrip, found 13 hours ago
$424
Roundtrip
found 13 hours ago
Select Scandinavian Airlines flight, departing Fri, Jan 9 from Chicago to Trondheim, returning Wed, Jan 28, priced at $424 found 13 hours ago
Scandinavian Airlines
Wed, Dec 10 - Wed, Dec 24
ORD
Chicago
TRD
Trondheim
$455 Roundtrip, found 1 day ago
$455
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Wed, Dec 10 from Chicago to Trondheim, returning Wed, Dec 24, priced at $455 found 1 day ago
Scandinavian Airlines
Fri, Nov 28 - Tue, Dec 2
ORD
Chicago
TRD
Trondheim
$463 Roundtrip, found 1 day ago
$463
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Fri, Nov 28 from Chicago to Trondheim, returning Tue, Dec 2, priced at $463 found 1 day ago
Scandinavian Airlines
Sat, Jan 10 - Wed, Jan 28
ORD
Chicago
TRD
Trondheim
$464 Roundtrip, found 13 hours ago
$464
Roundtrip
found 13 hours ago
Select Scandinavian Airlines flight, departing Sat, Jan 10 from Chicago to Trondheim, returning Wed, Jan 28, priced at $464 found 13 hours ago
Scandinavian Airlines
Thu, Dec 11 - Wed, Dec 24
ORD
Chicago
TRD
Trondheim
$466 Roundtrip, found 1 day ago
$466
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, Dec 11 from Chicago to Trondheim, returning Wed, Dec 24, priced at $466 found 1 day ago
Delta
Wed, Dec 10 - Mon, Dec 15
ORD
Chicago
TRD
Trondheim
$514 Roundtrip, found 1 day ago
$514
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Dec 10 from Chicago to Trondheim, returning Mon, Dec 15, priced at $514 found 1 day ago
KLM
Wed, Dec 3 - Fri, Dec 12
ORD
Chicago
TRD
Trondheim
$566 Roundtrip, found 1 day ago
$566
Roundtrip
found 1 day ago
Select KLM flight, departing Wed, Dec 3 from Chicago to Trondheim, returning Fri, Dec 12, priced at $566 found 1 day ago
Lufthansa
Sat, Aug 22 - Sat, Aug 29
ORD
Chicago
TRD
Trondheim
$751 Roundtrip, found 16 hours ago
$751
Roundtrip
found 16 hours ago
Select Lufthansa flight, departing Sat, Aug 22 from Chicago to Trondheim, returning Sat, Aug 29, priced at $751 found 16 hours ago
Finnair
Thu, Apr 16 - Mon, Apr 20
ORD
Chicago
TRD
Trondheim
$752 Roundtrip, found 5 days ago
$752
Roundtrip
found 5 days ago
Select Finnair flight, departing Thu, Apr 16 from Chicago to Trondheim, returning Mon, Apr 20, priced at $752 found 5 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 $423
TRD
Vaernes
CheapestClosest
Average driving time to city center29 min
Flights from $423
Flights from Chicago (ORD) to Trondheim (TRD)
Origin airport
O'Hare Intl.
Destination airport
Vaernes
Airlines serving
Air France, Delta, Finnair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, TAP Portugal
Roundtrip price
$422
Distance
3925 mi

Chicago to Trondheim Flights

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

 

The best time to book a flight from Chicago to Trondheim

Sunday is one of the best days to book for cheap flights from Chicago 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 Chicago 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 Chicago to Trondheim in 2025. You can also book with separate airlines for your outbound and return journeys, from $394 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 Chicago 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 Chicago 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.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD) cost?
Grab a cheap one-way flight from $394 or cheap return flight from $423 from O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD) 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 O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD)?
Planning your trip for November is a great way to save, as it's the cheapest month for flights between ORD and TRD. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from ORD to TRD. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD)?
Nonstop flights from O'Hare Intl. Airport (ORD) 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 dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ORD to TRD?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a range of factors, including 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 O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD)?
Opt for a flight from O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this hour have a 22% higher chance of being canceled, on average.**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 O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD) last-minute?
Holding off until right before your break to book your flight from ORD to TRD often results in higher prices. While it's possible to find some last-minute offers, there's no guarantee. Keep your travel plans flexible to boost your chances of snagging a bargain.
Is it cheaper to book an ORD to TRD flight and hotel package?
You'll generally save money by booking an ORD to TRD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your preferred flights and accommodations, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Vaernes Airport (TRD)?
You can usually cancel or reschedule your ORD to TRD flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.