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$503+ Cheap flights from O'Hare Intl (ORD) 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TRD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Trondheim

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Trondheim (TRD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$503
(Scandinavian Airlines)

Popular in

August

Cheapest in

January

Average price

$655
From Chicago O'Hare Intl to Trondheim Vaernes
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Highest demand for flights based on searches. 5% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from O'Hare Intl to Trondheim

Cheapest flights from O'Hare Intl to Trondheim
Explore the most affordable flight options available from O'Hare Intl to Trondheim. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

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 Delta deal was found by Cheapflights users on 9/17. 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.
Mon 9/294:40 pmORD - TRD
1 stop11h 50mDelta
Sun 10/126:00 amTRD - ORD
2 stops21h 23mDelta
Deal found 9/17$598
This KLM deal was found by Cheapflights users on 9/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:40 pmORD - TRD
1 stop11h 50mKLM
Sun 10/125:05 pmTRD - ORD
1 stop28h 35mKLM
Deal found 9/17$656
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
This Delta deal was found by Cheapflights users on 9/17. 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.
Tue 9/304:15 pmORD - TRD
1 stop17h 15mDelta
Thu 10/96:00 amTRD - ORD
2 stops17h 11mDelta
Deal found 9/17$673

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 17, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Trondheim that are best for you.

Fly from

O'Hare Intl

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

Wed 9/24

4:40 pm-4:30 pm

1 stop16h 50m

Trondheim Vaernes

Thu 10/2

12:05 pm-11:54 pm

2 stops18h 49m

$665

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Wed 9/24

4:40 pm-10:50 pm

1 stop23h 10m

Trondheim Vaernes

Thu 10/2

12:05 pm-2:10 pm

1 stop33h 05m

$755

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from O'Hare Intl to Trondheim

Have a flexible travel schedule? Discover the best time to fly to Trondheim from O'Hare Intl 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.

Reviews of airlines servicing Trondheim

Get insights into the airlines that provide service to Trondheim. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trondheim. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Trondheim, such as KLM and Scandinavian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,386 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,386 reviews
KLM
7.8
Good
1,386 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Scandinavian Airlines
7.4
Good
1,486 reviews
KLM
7.8
Good
1,386 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 Chicago O'Hare Intl?

    Trondheim Vaernes (TRD), located 16.4 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Trondheim. 2 airlines have flights to Vaernes from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Trondheim Vaernes should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

  • How long is the flight from Chicago O'Hare Intl Airport to Trondheim?

    There are many flights that can get you from Chicago O'Hare Intl Airport to Trondheim in 16h 50m. Fly via Scandinavian Airlines or Delta to get the fastest option. Airlines will cover a distance of 3923 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Trondheim round-trip?

    Our cheapest airline available from Chicago O'Hare Intl Airport to Trondheim is Scandinavian Airlines. Our recent data shows that you can find tickets from as low as $501 on this airline. An additional option worth looking into is KLM, starting at $520. Scandinavian Airlines is currently priced 38% below the average price you’ll pay for this route.

  • Can I find deals for flights from O'Hare Intl to Trondheim that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Trondheim flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Trondheim?

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

  • Can I find deals for business class flights from O'Hare Intl to Trondheim?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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

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Top 2 airlines flying from O'Hare Intl to Trondheim

Discover the top 2 airlines that operate flights from O'Hare Intl 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$501Average$788FlexibilityNo cancel feeOn-time77%
KLMCheapest$520Average$655FlexibilityNo cancel feeOn-time75%

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