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$518+ Cheap flights from Trondheim (TRD) to Illinois

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
TRD — ORD
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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Cheap flight deals from Trondheim to Illinois

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

Round-trip from

$518
(Delta)

Popular in

August

Cheapest in

November

Average price

$588
From Trondheim Vaernes to Illinois
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 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 Trondheim to Illinois

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

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.
jue. 12/46:15 amTRD - ORD
2 stops19h 07mDelta
lun. 12/84:25 pmORD - TRD
1 stop17h 10mDelta
Deal found 9/14$518
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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.
jue. 12/47:45 amTRD - ORD
2 stops16h 00mScandinavian Airlines
lun. 12/87:20 pmORD - TRD
1 stop22h 20mScandinavian Airlines
Deal found 9/15$524
This Flysmarter 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/217:35 pmTRD - ORD
2 stops26h 05mKLM
dom. 9/284:15 pmORD - TRD
1 stop17h 15mKLM
Deal found 9/14$712
This Travelis 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/217:45 pmTRD - ORD
1 stop27h 25mScandinavian Airlines
dom. 9/287:15 pmORD - TRD
1 stop22h 20mScandinavian Airlines
Deal found 9/14$870
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.
dom. 9/216:00 amTRD - ORD
2 stops19h 04mDelta
dom. 9/286:50 pmORD - TRD
2 stops14h 40mDelta
Deal found 9/14$914
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/215:45 amTRD - ORD
3 stops20h 55mMultiple Airlines
dom. 9/286:00 pmORD - TRD
2 stops19h 30mMultiple Airlines
Deal found 9/14$1,309

Cheapflights Fare Finder

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

Fly from

Trondheim

Fly to

Illinois

Route

Depart

Return

Price

TrondheimChicago

TRD - ORD

TRDORD

Trondheim Vaernes

jue. 12/4

6:15 am-4:54 pm

2 stops17h 39m

Chicago O'Hare Intl

lun. 12/8

2:32 pm-4:35 pm

2 stops19h 03m

$518

TrondheimChicago

TRD - ORD

TRDORD

Trondheim Vaernes

jue. 12/4

7:45 am-4:45 pm

2 stops16h 00m

Chicago O'Hare Intl

lun. 12/8

7:20 pm-12:40 am

1 stop22h 20m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Trondheim to Illinois

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated septiembre 16, 2025.
Peruse reviews from past customers who have flown with Scandinavian Airlines from Trondheim to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Food

6.7

Crew

8.0

Boarding

7.6

Overall

7.4

Entertainment

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,486 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Food

6.7

Crew

8.0

Boarding

7.6

Overall

7.4

Entertainment

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

Related info for your journey

Find useful and relevant information for your journey from Trondheim to Illinois. 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 from for flights from Trondheim to Illinois?

    If you book a flight to Illinois from Trondheim, you will be flying from Vaernes, which is the city’s only airport. Trondheim Vaernes (TRD) is located 16.4 mi from the center of Trondheim.

  • How long is the flight from Trondheim to Illinois?

    Delta and Scandinavian Airlines can get you from Trondheim to Illinois in just under 16h. Your travel time can differ by up to 1h 39m. The distance between Trondheim and Illinois is about 3923 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Trondheim to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Trondheim to Illinois (average of $245). Flying from Trondheim to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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