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$522+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TRD
may. 6 — may. 131
mar. 5/6
mar. 5/13
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 mayo 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$522
(Booking.com)

Popular in

July

Cheapest in

February

Average price

$1,006
Provider with most accurate pricing for Chicago (CHI)-Trondheim Vaernes flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Trondheim Vaernes flights.
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From Illinois to Trondheim Vaernes
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Highest demand for flights based on searches. 27% potential increase in price ($276 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 mayo 1, 2025.

This KLM deal was found by Cheapflights users on 4/28. 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.
mar. 4/294:20 pmORD - TRD
1 stop12h 10mKLM
mar. 5/65:05 pmTRD - ORD
1 stop28h 35mKLM
Deal found 4/28$651
This Delta deal was found by Cheapflights users on 4/28. 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.
mar. 4/291:25 pmORD - TRD
2 stops15h 05mDelta
mar. 5/66:00 amTRD - ORD
2 stops19h 14mDelta
Deal found 4/28$666
This FlightHub deal was found by Cheapflights users on 4/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/167:00 amORD - TRD
2 stops19h 35mScandinavian Airlines
dom. 7/203:45 pmTRD - ORD
2 stops37h 18mScandinavian Airlines
Deal found 4/30$753
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/136:30 pmORD - TRD
2 stops32h 05mMultiple Airlines
vie. 6/206:30 amTRD - ORD
2 stops16h 40mMultiple Airlines
Deal found 4/29$1,011

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 mayo 1, 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

mié. 7/16

7:00 am-9:35 am

2 stops19h 35m

Trondheim Vaernes

dom. 7/20

3:45 pm-10:03 pm

2 stops37h 18m

$753

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

jue. 6/12

7:00 am-9:35 am

2 stops19h 35m

Trondheim Vaernes

jue. 6/19

6:00 am-6:03 pm

2 stops19h 03m

$850

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

vie. 6/13

6:30 pm-9:35 am

2 stops32h 05m

Trondheim Vaernes

vie. 6/20

6:30 am-4:10 pm

2 stops16h 40m

$1,011

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

mié. 7/16

4:50 pm-11:30 am

1 stop11h 40m

Trondheim Vaernes

dom. 7/20

6:00 am-2:10 pm

1 stop15h 10m

$1,030

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

dom. 6/22

4:20 pm-12:10 am

1 stop24h 50m

$648

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

vie. 6/13

3:40 pm-4:30 pm

2 stops17h 50m

$773

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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

Rainfall in Trondheim by month

Plan your trip to Trondheim by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Trondheim ranges from 1.8 - 4.3 inches per month. September is typically the wettest month, when rainfall can reach 4.3 in. April is typically the driest time to visit Trondheim when rainfall is around 1.8 in.

Temperature in Trondheim by month

Plan your trip to Trondheim by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Trondheim, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 55.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

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 mayo 1, 2025.
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,349 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$501Average$788FlexibilityNo cancel feeOn-time77%
KLMCheapest$527Average$655FlexibilityNo cancel feeOn-time75%

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