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 $521 on this airline. Additional options worth looking into are Finnair and KLM, starting at $554 and $582 round-trip. Scandinavian Airlines is currently priced 36% below the average price you’ll pay for this route.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Trondheim?

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Trondheim flight should consider departing on Friday evenings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What is the cheapest day to fly round-trip from Chicago O'Hare Intl Airport to Trondheim?

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 24% on the overall cost on flights from Chicago O'Hare Intl Airport to Trondheim.

What is the cheapest time of day to fly from ORD to TRD?

When flying from Chicago O'Hare Intl Airport to Trondheim, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 11% versus a flight in the morning.

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.

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.

$341+ Flights from Chicago O'Hare Intl Airport to Trondheim

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Cheap flight deals from O'Hare Intl to Trondheim

Round-trip from	$521 (Mytrip)
One-way from	$341 (Kiwi.com)
Popular in	August
Cheapest in	January
Average price	$987

From Chicago O'Hare Intl to Trondheim Vaernes

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One-way flight 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 June 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 June 30, 2025.

Thu 11/137:20 pmORD - TRD

1 stop22h 20mScandinavian Airlines

Mon 11/177:45 amTRD - ORD

2 stops16h 00mScandinavian Airlines

Deal found 6/29

$468

Wed 9/2412:00 pmORD - TRD

2 stops14h 35mMultiple Airlines

Wed 10/16:25 pmTRD - ORD

2 stops28h 45mMultiple Airlines

Deal found 6/29

$530

Tue 8/129:40 pmORD - TRD

2 stops27h 50mFinnair

Tue 8/1910:00 amTRD - ORD

2 stops35h 40mFinnair

Deal found 6/28

$554

Wed 8/134:50 pmORD - TRD

1 stop23h 00mKLM

Wed 8/2012:05 pmTRD - ORD

1 stop33h 05mKLM

Deal found 6/29

$582

Wed 8/134:50 pmORD - TRD

1 stop16h 40mDelta

Wed 8/206:00 amTRD - ORD

1 stop15h 40mDelta

Deal found 6/29

$584

Best flights from O'Hare Intl to Trondheim
Discover carefully curated flight deals from O'Hare Intl to Trondheim that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 30, 2025.

Tue 8/127:15 pmORD - TRD

1 stop22h 20mScandinavian Airlines

Tue 8/196:55 amTRD - ORD

2 stops16h 15mScandinavian Airlines

Deal found 6/28

$521

Wed 9/2412:00 pmORD - TRD

2 stops14h 35mMultiple Airlines

Wed 10/16:25 pmTRD - ORD

2 stops28h 45mMultiple Airlines

Deal found 6/29

$530

Tue 8/129:40 pmORD - TRD

2 stops27h 50mFinnair

Tue 8/1910:00 amTRD - ORD

2 stops35h 40mFinnair

Deal found 6/28

$554

Wed 8/134:50 pmORD - TRD

1 stop23h 00mKLM

Wed 8/2012:05 pmTRD - ORD

1 stop33h 05mKLM

Deal found 6/29

$582

Wed 8/134:50 pmORD - TRD

1 stop16h 40mDelta

Wed 8/206:00 amTRD - ORD

1 stop15h 40mDelta

Deal found 6/29

$584

Last-minute flights from O'Hare Intl to Trondheim
Discover last-minute flight deals from O'Hare Intl to Trondheim. Data last updated June 30, 2025 and is based on user searches.

Wed 7/167:00 amORD - TRD

2 stops19h 35mScandinavian Airlines

Sun 7/208:30 pmTRD - ORD

2 stops26h 40mScandinavian Airlines

Deal found 6/30

$753

Wed 7/164:50 pmORD - TRD

1 stop11h 40mDelta

Sun 7/206:00 amTRD - ORD

2 stops23h 03mDelta

Deal found 6/28

$794

Wed 7/169:55 amORD - TRD

3 stops18h 30mMultiple Airlines

Sun 7/208:30 pmTRD - ORD

2 stops26h 40mMultiple Airlines

Deal found 6/28

$919

Wed 7/164:50 pmORD - TRD

1 stop11h 40mKLM

Sun 7/2012:05 pmTRD - ORD

1 stop33h 05mKLM

Deal found 6/30

$984

One-way flights from O'Hare Intl to Trondheim
Search for one-way flight options from O'Hare Intl to Trondheim. Find affordable one-way fares based on user searches. Data last updated June 30, 2025.

Thu 8/216:00 pmORD - TRD

3 stops58h 10mMultiple Airlines

Deal found 6/30

$341

Thu 8/144:20 pmORD - TRD

1 stop17h 10mDelta

Deal found 6/30

$459

Thu 8/147:00 pmORD - TRD

2 stops14h 30mKLM

Deal found 6/30

$461

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Trondheim that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Tue 8/12

7:15 pm-12:35 am

1 stop22h 20m

Trondheim Vaernes

Tue 8/19

6:55 am-4:10 pm

2 stops16h 15m

$521

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Wed 9/24

12:00 pm-9:35 am

2 stops14h 35m

Trondheim Vaernes

Wed 10/1

6:25 pm-4:10 pm

2 stops28h 45m

$530

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Tue 8/12

9:40 pm-8:30 am

2 stops27h 50m

Trondheim Vaernes

Tue 8/19

10:00 am-2:40 pm

2 stops35h 40m

$554

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Wed 8/13

4:50 pm-10:50 pm

1 stop23h 00m

Trondheim Vaernes

Wed 8/20

12:05 pm-2:10 pm

1 stop33h 05m

$582

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Wed 8/13

4:50 pm-4:30 pm

1 stop16h 40m

Trondheim Vaernes

Wed 8/20

6:00 am-2:40 pm

1 stop15h 40m

$584

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Thu 8/21

6:00 pm-11:10 am

3 stops58h 10m

$341

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Thu 8/14

4:20 pm-4:30 pm

1 stop17h 10m

$459

ChicagoTrondheim

ORD - TRD

ORDTRD

Chicago O'Hare Intl

Thu 8/14

7:00 pm-4:30 pm

2 stops14h 30m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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

Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Trondheim, such as Delta, KLM, and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,973 reviews

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

7,973 reviews

Delta

8.0

Very good

7,973 reviews

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

1,365 reviews

Delta

8.0

Very good

7,973 reviews

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

1,299 reviews

Delta

8.0

Very good

7,973 reviews

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

7.3

Good

1,413 reviews

Delta

8.0

Very good

7,973 reviews

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

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.
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 $521 on this airline. Additional options worth looking into are Finnair and KLM, starting at $554 and $582 round-trip. Scandinavian Airlines is currently priced 36% 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for O'Hare Intl to Trondheim

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Complete your trip

Trondheim car rentals

Trondheim Vaernes Airport car rentals

Kristiansund Kvernberget Airport car rentals

Rørvik Ryumsjoen Aprt Airport car rentals

Top 2 airlines flying from O'Hare Intl to Trondheim

Airline	Cheapest	Average	Flexibility	On-time
Scandinavian Airlines	Cheapest$501	Average$785	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$520	Average$584	FlexibilityNo cancel fee	On-time75%

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$341+ Cheap flights from O'Hare Intl (ORD) 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from O'Hare Intl to Trondheim with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from O'Hare Intl to Trondheim

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from O'Hare Intl to Trondheim

Cheapest flights from O'Hare Intl to TrondheimExplore 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 June 30, 2025.

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 June 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Trondheim that are best for you.

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.

Reviews of airlines servicing Trondheim

Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Trondheim, such as Delta, KLM, and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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 O'Hare Intl to Trondheim

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from O'Hare Intl to Trondheim

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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 June 30, 2025.