The cheapest times to fly from ORD to TRD are

  • January 8th to March 4th
  • April 2nd to May 20th
  • September 3rd to December 2nd (except the weeks of September 24th and November 19th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ORD to TRD is late April. Prices can be as high as $1424 for Thursday flights during early August, or as low as $484 for Monday flights around late April.


When to Fly to Trondheim

Flying from Chicago, IL (ORD) to Trondheim (TRD) will usually cost between $517 to $1146 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late April with an average ticket price of $544. Due to high demand the most expensive time to fly is early August, with an average price of $1049. Planning your trip to low-cost times can easily save you $504 on economy flights and even more on first-class flights. Generally, any price below $701 can be considered a good price for a round-trip ORD to TRD flight.

See below for a graph of average weekly prices for the ORD to TRD route. All prices are for round-trip tickets in USD.

ORD to TRD Flight Prices

Compared to other flights, the ORD to TRD flight is cheaper than the average and costs less than the average flight leaving from Chicago. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to TRD, and Wednesday the cheapest day to fly back into ORD. Thursdays are the most expensive days to fly to Trondheim, and Saturdays are the most expensive days to return to Chicago. Selecting flights on the least expensive days could save you up to $159 (18%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $669. Return trip prices are from the TRD to ORD flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ORD to TRD can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 8 hour 3 minutes may not be realistic.


Flight Hacking ORD to TRD

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ORD to TRD — but Champion Traveler does!

Hack #1: Barcelona (ORD > BCN > TRD)

  • Price for both tickets: $685
  • Average savings: $16 (2.28%)

See ORD to BCN flights

Hack #2: Oslo (ORD > OSL > TRD)

  • Price for both tickets: $689
  • Average savings: $13 (1.78%)

See ORD to OSL flights


Flight Questions Answered

Still have questions about flying from ORD to TRD? We’ve got answers.

Which airlines fly this route?

You can find 13 major airlines flying this route most often: Air Canada, Air France, Alitalia, Austrian, Delta, Finnair, Icelandair, KLM, LOT, Lufthansa, Norwegian, SAS, United, and potentially more during busy seasons.

How far away is it from Vaernes Airport to Chicago O’Hare International Airport?

The distance between the two airports is roughly 3925 miles or 6317 kilometers.

How long does it take to fly from ORD to TRD?

The real-world flight time for a nonstop ORD to TRD flight is about 8 hour 3 minutes.

How many flights go between Chicago, IL and Trondheim?

It depends on the day of the week and the date, but a typical day might have around 24 available flights from ORD to TRD.


Airport Location Info


Departing Airport

Origination code ORD
Origination airport name Chicago O’Hare International Airport
City Chicago, IL
Country the United States
Latitude 42
Longitude -87.9

Return Airport

Destination code TRD
Destination airport name Vaernes Airport
City Trondheim
Country Norway
Latitude 63.5
Longitude 10.9


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.