$430+ Cheap flights from Illinois to Tromsø (TOS)
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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TOS
Jan 11 — Jan 181
1 adult, Economy
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Tromsø
Cheapest flights from Illinois to TromsøExplore the most affordable flight options available from Illinois to Tromsø. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.
Explore the most affordable flight options available from Illinois to Tromsø. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:35 pmORD - TOS
2 stops37h 15mLufthansa
Tue 12/161:15 pmTOS - ORD
2 stops31h 55mLufthansa
Deal found 12/10![Lufthansa logo]()
$770
This FlightHub deal was found by Cheapflights users on 12/10. 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.
Fri 12/127:10 amORD - TOS
2 stops21h 05mScandinavian Airlines
Tue 12/165:50 pmTOS - ORD
2 stops29h 55mScandinavian Airlines
Deal found 12/10![Scandinavian Airlines logo]()
$908
This KLM deal was found by Cheapflights users on 12/10. 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.
Fri 12/125:20 pmORD - TOS
1 stop13h 30mKLM
Tue 12/1610:25 amTOS - ORD
1 stop34h 55mKLM
Deal found 12/10![KLM logo]()
$1,138
This Mytrip deal was found by Cheapflights users on 12/10. 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.
Fri 12/124:20 pmORD - TOS
3 stops33h 05mMultiple Airlines
Tue 12/166:45 pmTOS - ORD
3 stops28h 35mMultiple Airlines
Deal found 12/10![Multiple Airlines logo]()
$1,284
This Expedia deal was found by Cheapflights users on 12/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:35 pmORD - TOS
2 stops37h 00mLufthansa
Tue 12/232:20 pmTOS - ORD
2 stops29h 50mLufthansa
Deal found 12/11![Lufthansa logo]()
$1,368
This Expedia deal was found by Cheapflights users on 12/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:35 pmORD - TOS
2 stops37h 00mMultiple Airlines
Tue 12/232:20 pmTOS - ORD
1 stop33h 00mMultiple Airlines
Deal found 12/11![Multiple Airlines logo]()
$1,371
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:32 amORD - TOS
2 stops18h 18mMultiple Airlines
Mon 1/51:30 pmTOS - ORD
2 stops27h 50mMultiple Airlines
Deal found 12/11![Multiple Airlines logo]()
$1,451
This FlightHub deal was found by Cheapflights users on 12/10. 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.
Sat 12/277:20 pmORD - TOS
2 stops33h 35mScandinavian Airlines
Mon 1/58:10 pmTOS - ORD
2 stops51h 35mScandinavian Airlines
Deal found 12/10![Scandinavian Airlines logo]()
$1,532
Find flight deals from Illinois to Tromsø
Keep the following information in mind while searching for Illinois to Tromsø flight deals. Data was last updated December 12, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $430 (oojo) |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Tromsø 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 December 12, 2025.
Use the filters below to find and compare flights from Illinois to Tromsø that are best for you.
Fly from
Illinois
Fly to
Tromsø
Route
Depart
Return
Price
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Wed 2/4
7:20 pm-5:15 pm
3 stops38h 55m
Tromso/Langnes
Tue 2/10
5:10 pm-4:45 pm
2 stops30h 35m
$430
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Wed 1/14
7:20 pm-11:00 am
3 stops32h 40m
Tromso/Langnes
Mon 1/19
5:55 pm-4:45 pm
3 stops53h 50m
$460
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Wed 1/28
7:20 pm-11:50 pm
2 stops21h 30m
Tromso/Langnes
Sun 2/1
6:15 pm-4:45 pm
2 stops29h 30m
$472
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Thu 1/1
6:50 pm-10:10 am
1 stop32h 20m
$530
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Thu 1/1
4:20 pm-11:45 pm
3 stops24h 25m
$654
Best time to book a flight from Illinois to Tromsø
Have a flexible travel schedule? Discover the best time to fly to Tromsø 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 Tromsø
What is the cheapest time of day to fly from IL to TOS?
Find hourly flight availability from Illinois to Tromsø. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.
Unlike at noon, when flights are generally more expensive, you can save up to 60% on flights from Illinois to Tromsø by exploring options for tickets in the evening.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Tromsø. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Illinois to Tromsø
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Illinois to Tromsø
Discover the top airline that operate flights from Illinois to Tromsø. 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 December 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$421 | Average$629 | FlexibilityNo cancel fee | On-time77% |