HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Trondheim

$497+ Cheap flights from Illinois 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TRD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois 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 Illinois to Trondheim

Keep the following information in mind while searching for Illinois to Trondheim flight deals. Data was last updated September 16, 2025.

Round-trip from

$497
(oojo)
From Illinois to Trondheim Vaernes
Search Deals

Find flight deals from Illinois to Trondheim

Cheapest flights from Illinois to Trondheim
Explore the most affordable flight options available from Illinois to Trondheim. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:10 pmORD - TRD
2 stops16h 00mScandinavian Airlines
Wed 11/57:45 amTRD - ORD
2 stops16h 00mScandinavian Airlines
Deal found 9/14$497
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:20 pmORD - TRD
1 stop22h 20mScandinavian Airlines
Mon 11/175:30 amTRD - ORD
1 stop18h 15mScandinavian Airlines
Deal found 9/14$503
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:20 pmORD - TRD
1 stop12h 10mScandinavian Airlines
Wed 12/2410:20 amTRD - ORD
1 stop13h 25mScandinavian Airlines
Deal found 9/14$540
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:20 pmORD - TRD
2 stops14h 00mScandinavian Airlines
Wed 12/2410:20 amTRD - ORD
1 stop13h 25mScandinavian Airlines
Deal found 9/14$582
This Delta deal was found by Cheapflights users on 9/14. 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 9/244:40 pmORD - TRD
1 stop16h 50mDelta
Thu 10/212:05 pmTRD - ORD
2 stops18h 49mDelta
Deal found 9/14$665

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 September 16, 2025.
Use the filters below to find and compare flights from Illinois to Trondheim that are best for you.

Fly from

Illinois

Fly to

Trondheim

Route

Depart

Return

Price

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Thu 11/13

7:20 pm-12:40 am

1 stop22h 20m

Trondheim Vaernes

Mon 11/17

5:30 am-4:45 pm

1 stop18h 15m

$503

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Mon 12/15

7:20 pm-9:40 pm

2 stops19h 20m

Trondheim Vaernes

Sun 12/28

6:40 pm-4:45 pm

2 stops29h 05m

$727

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Sun 12/14

7:20 pm-9:40 pm

2 stops19h 20m

Trondheim Vaernes

Sun 12/28

6:40 pm-4:45 pm

2 stops29h 05m

$727

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Tue 12/16

1:23 pm-4:35 pm

2 stops20h 12m

Trondheim Vaernes

Fri 12/26

6:15 am-8:56 pm

2 stops21h 41m

$745

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Mon 12/15

7:20 pm-2:30 pm

1 stop12h 10m

Trondheim Vaernes

Fri 12/26

10:20 am-4:45 pm

1 stop13h 25m

$768

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Mon 12/22

7:05 am-9:40 am

2 stops19h 35m

Trondheim Vaernes

Mon 12/29

5:30 am-4:45 pm

1 stop18h 15m

$823

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Mon 12/15

7:20 pm-2:30 pm

1 stop12h 10m

Trondheim Vaernes

Sat 12/27

7:45 pm-4:45 pm

1 stop28h 00m

$843

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Illinois to Trondheim

Have a flexible travel schedule? Discover the best time to fly to Trondheim from Illinois 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 Illinois to Trondheim
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Trondheim. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Trondheim from Illinois?

    Trondheim Vaernes (TRD), located 16.4 mi from the city center, is the airport you fly into when you book flights from Illinois to Trondheim.

  • How long is the flight from Illinois to Trondheim?

    A quick flight from Illinois to Trondheim can take about 22h 20m. Scandinavian Airlines provides one of the quickest options available for as low as $503. The distance between Illinois and Trondheim is about 3923 mi.

  • Can I find deals for flights from Illinois to Trondheim that include hotel bookings?

    Yes. In addition to deals on Illinois to Trondheim flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Trondheim?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Trondheim.

  • Can I find deals for business class flights from Illinois to Trondheim?

    Yes. Cheapflights offers flight deals from Illinois to Trondheim by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Trondheim

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Oslo Gardermoen flights
Newark to Oslo Gardermoen flights
Dallas/Fort Worth to Oslo Gardermoen flights
Seattle to Oslo Gardermoen flights
LaGuardia to Oslo Gardermoen flights
Dulles Intl to Oslo Gardermoen flights
Los Angeles to Oslo Gardermoen flights
Minneapolis to Oslo Gardermoen flights
San Francisco to Oslo Gardermoen flights
Reagan-National to Oslo Gardermoen flights
John F Kennedy Intl to Sandefjord flights
Love Field to Oslo Gardermoen flights
Baltimore to Oslo Gardermoen flights
Boston to Oslo Gardermoen flights
Newark to Sandefjord flights
O'Hare Intl to Oslo Gardermoen flights
Atlanta to Oslo Gardermoen flights
Denver to Oslo Gardermoen flights
Miami to Oslo Gardermoen flights
Los Angeles to Sandefjord flights
Newark to Tromsø flights
John F Kennedy Intl to Tromsø flights
Charlotte to Oslo Gardermoen flights
Ontario to Oslo Gardermoen flights
Santa Ana to Oslo Gardermoen flights
Hobby to Oslo Gardermoen flights
Salt Lake City to Oslo Gardermoen flights
Stewart to Oslo Gardermoen flights
Dulles Intl to Sandefjord flights
Orlando to Oslo Gardermoen flights
Burbank to Oslo Gardermoen flights
Dallas/Fort Worth to Tromsø flights
Boston to Bergen flights
Boston to Sandefjord flights
Jacksonville to Oslo Gardermoen flights
Oakland to Oslo Gardermoen flights
Cincinnati to Oslo Gardermoen flights
San Jose to Oslo Gardermoen flights
George Bush Intcntl to Oslo Gardermoen flights
Raleigh to Oslo Gardermoen flights
Anchorage to Oslo Gardermoen flights
Midway to Oslo Gardermoen flights
Atlanta to Sandefjord flights
San Diego to Oslo Gardermoen flights
Fargo to Oslo Gardermoen flights
Seattle to Bergen flights
San Francisco to Sandefjord flights
Dallas/Fort Worth to Bergen flights
O'Hare Intl to Bergen flights

Top 2 airlines flying from Illinois to Trondheim

Discover the top 2 airlines that operate flights from Illinois to Trondheim. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$501Average$788FlexibilityNo cancel feeOn-time77%
KLMCheapest$520Average$655FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.