$333+ Cheap flights from Illinois to Tromsø (TOS)
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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TOS
Dec 31 — Jan 71
1 adult, Economy
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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 1, 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 1, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 11/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:20 pmORD - TOS
2 stops16h 00mScandinavian Airlines
Wed 1/78:10 pmTOS - ORD
2 stops27h 35mScandinavian Airlines
Deal found 11/29![Scandinavian Airlines logo]()
$824
This oojo deal was found by Cheapflights users on 11/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:20 pmORD - TOS
2 stops21h 25mScandinavian Airlines
Thu 12/186:00 amTOS - ORD
2 stops17h 45mScandinavian Airlines
Deal found 11/28![Scandinavian Airlines logo]()
$889
This CrystalTravel deal was found by Cheapflights users on 11/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:50 pmORD - TOS
1 stop12h 55mMultiple Airlines
Tue 1/66:45 pmTOS - ORD
2 stops29h 15mMultiple Airlines
Deal found 11/30![Multiple Airlines logo]()
$1,166
This Mytrip deal was found by Cheapflights users on 11/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:10 amORD - TOS
3 stops33h 35mMultiple Airlines
Thu 12/187:50 pmTOS - ORD
3 stops28h 30mMultiple Airlines
Deal found 11/28![Multiple Airlines logo]()
$1,376
Cheap 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 1, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $378 (oojo) |
One-way from | $333 (Mytrip) |
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 1, 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
Mon 1/12
7:05 am-11:25 am
2 stops21h 20m
Tromso/Langnes
Sat 1/17
5:40 pm-4:55 pm
2 stops30h 15m
$376
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Wed 1/14
7:20 pm-5:15 pm
3 stops38h 55m
Tromso/Langnes
Mon 1/19
5:55 pm-4:45 pm
3 stops53h 50m
$378
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Thu 1/15
7:20 pm-11:50 pm
2 stops21h 30m
Tromso/Langnes
Mon 1/19
5:55 pm-4:45 pm
3 stops53h 50m
$378
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Wed 1/14
7:20 pm-11:50 pm
2 stops21h 30m
Tromso/Langnes
Wed 1/21
5:10 pm-4:45 pm
2 stops30h 35m
$378
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Tue 1/13
11:00 am-6:40 pm
2 stops24h 40m
Tromso/Langnes
Tue 1/20
8:10 pm-4:45 pm
2 stops27h 35m
$398
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Thu 2/26
7:20 pm-7:35 pm
1 stop17h 15m
Tromso/Langnes
Thu 3/5
7:50 pm-4:55 pm
1 stop28h 05m
$411
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Tue 1/6
6:30 pm-11:25 pm
2 stops21h 55m
$333
ChicagoTromsø
ORD - TOS
ORDTOS
Chicago O'Hare Intl
Tue 1/6
6:25 pm-3:25 pm
1 stop14h 00m
$712
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 1, 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 1, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$421 | Average$629 | FlexibilityNo cancel fee | On-time77% |