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Trondheim

$258+ Cheap flights from Illinois to Trondheim (TRD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TRD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$426
(Scandinavian Airlines)

One-way from

$258
(Kiwi.com)
From Illinois to Trondheim Vaernes
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One-way flight from Illinois to Trondheim Vaernes
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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 July 31, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 7/31. 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 11/176:25 amTRD - ORD
2 stops17h 20mScandinavian Airlines
Deal found 7/31$425
This Finnair deal was found by Cheapflights users on 7/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:35 pmORD - TRD
2 stops25h 40mFinnair
Tue 9/3010:00 amTRD - ORD
2 stops35h 50mFinnair
Deal found 7/30$621
This Delta deal was found by Cheapflights users on 7/31. 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 9/2410:40 amORD - TRD
2 stops15h 55mDelta
Thu 10/26:00 amTRD - ORD
1 stop15h 10mDelta
Deal found 7/31$627
This KLM deal was found by Cheapflights users on 7/31. 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.
Wed 9/244:40 pmORD - TRD
1 stop16h 50mKLM
Thu 10/25:05 pmTRD - ORD
1 stop28h 05mKLM
Deal found 7/31$653
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:25 pmORD - TRD
3 stops30h 30mMultiple Airlines
Thu 10/26:20 pmTRD - ORD
3 stops33h 55mMultiple Airlines
Deal found 7/31$845

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 July 31, 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

6:25 am-4:45 pm

2 stops17h 20m

$425

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Thu 9/25

10:35 pm-7:15 am

2 stops25h 40m

Trondheim Vaernes

Tue 9/30

10:00 am-2:50 pm

2 stops35h 50m

$621

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Wed 9/24

10:40 am-9:35 am

2 stops15h 55m

Trondheim Vaernes

Thu 10/2

6:00 am-2:10 pm

1 stop15h 10m

$627

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

5:05 pm-2:10 pm

1 stop28h 05m

$653

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Wed 9/24

7:25 pm-8:55 am

3 stops30h 30m

Trondheim Vaernes

Thu 10/2

6:20 pm-9:15 pm

3 stops33h 55m

$845

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Fri 10/3

6:30 am-9:05 am

3 stops43h 35m

$258

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Fri 10/3

4:15 pm-11:30 am

1 stop12h 15m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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.

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 July 31, 2025.
Read through reviews of airlines operating flights from Illinois to Trondheim, such as Delta, KLM, and Finnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.4
Good
1,457 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$501Average$785FlexibilityNo cancel feeOn-time77%
KLMCheapest$520Average$655FlexibilityNo cancel feeOn-time75%

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