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Oslo Gardermoen

$230+ Cheap flights from Illinois to Oslo Gardermoen (OSL)

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OSL
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find flight deals from Illinois to Oslo Gardermoen

Cheapest flights from Illinois to Oslo Gardermoen
Explore the most affordable flight options available from Illinois to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This oojo deal was found by Cheapflights users on 11/1. 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.
Wed 12/36:30 pmORD - OSL
1 stop10h 05mIcelandair
Wed 12/101:10 pmOSL - ORD
1 stop11h 10mIcelandair
Deal found 11/1$391
This Mytrip deal was found by Cheapflights users on 11/2. 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.
Mon 11/177:20 pmORD - OSL
1 stop15h 55mScandinavian Airlines
Wed 12/31:30 pmOSL - ORD
1 stop34h 15mScandinavian Airlines
Deal found 11/2$392
This CheapOair deal was found by Cheapflights users on 11/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:00 amORD - OSL
2 stops24h 15mScandinavian Airlines
Wed 12/101:30 pmOSL - ORD
1 stop34h 15mScandinavian Airlines
Deal found 11/1$412
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 12/17:20 pmORD - OSL
1 stop16h 55mScandinavian Airlines
Mon 12/158:00 amOSL - ORD
1 stop15h 45mScandinavian Airlines
Deal found 11/2$433
This Booking.com deal was found by Cheapflights users on 10/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:20 pmORD - OSL
1 stop20h 10mScandinavian Airlines
Tue 12/169:05 pmOSL - ORD
1 stop26h 40mScandinavian Airlines
Deal found 10/31$436
This Justfly.com deal was found by Cheapflights users on 11/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:10 amORD - OSL
2 stops21h 05mScandinavian Airlines
Tue 11/184:00 pmOSL - ORD
1 stop31h 45mScandinavian Airlines
Deal found 11/1$454
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:50 pmORD - OSL
1 stop12h 50mLufthansa
Tue 11/186:15 amOSL - ORD
1 stop13h 55mLufthansa
Deal found 11/1$465
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Wed 11/59:50 pmORD - OSL
1 stop12h 50mMultiple Airlines
Fri 11/76:45 amOSL - ORD
2 stops20h 15mMultiple Airlines
Deal found 11/1$466
This United deal was found by Cheapflights users on 10/31. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:00 amSTL - OSL
2 stops26h 40mMultiple Airlines
Fri 12/126:15 amOSL - STL
2 stops17h 48mMultiple Airlines
Deal found 10/31$511
This Delta deal was found by Cheapflights users on 11/2. 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.
Tue 12/21:50 pmMDW - OSL
2 stops17h 00mDelta
Mon 12/87:45 amOSL - MDW
2 stops17h 33mDelta
Deal found 11/2$515
This Delta deal was found by Cheapflights users on 11/1. 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.
Wed 12/34:32 pmSTL - OSL
2 stops16h 48mDelta
Sun 12/79:50 amOSL - STL
2 stops37h 45mDelta
Deal found 11/1$523
This Delta deal was found by Cheapflights users on 11/1. 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.
Wed 12/310:49 amMDW - OSL
2 stops18h 41mDelta
Sun 12/79:25 amOSL - MDW
2 stops54h 29mDelta
Deal found 11/1$528

Cheap flight deals from Illinois to Oslo Gardermoen

Keep the following information in mind while searching for Illinois to Oslo Gardermoen flight deals. Data was last updated November 2, 2025.

Round-trip from

$385
(Cheapflightsfares)

One-way from

$230
(SmartFares)

Popular in

June

Cheapest in

November

Average price

$497
From Illinois to Oslo Gardermoen
Search Deals
One-way flight from Illinois to Oslo Gardermoen
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Oslo Gardermoen 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 November 2, 2025.
Use the filters below to find and compare flights from Illinois to Oslo Gardermoen Airport that are best for you.

Fly from

Illinois

Fly to

Oslo Gardermoen

Route

Depart

Return

Price

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 12/3

6:30 pm-11:35 am

1 stop10h 05m

Oslo Gardermoen

Wed 12/10

1:10 pm-5:20 pm

1 stop11h 10m

$391

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Fri 1/16

7:20 pm-1:10 pm

1 stop10h 50m

Oslo Gardermoen

Mon 1/19

5:55 am-4:45 pm

1 stop17h 50m

$396

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 12/3

7:00 am-2:15 pm

2 stops24h 15m

Oslo Gardermoen

Wed 12/10

1:30 pm-4:45 pm

1 stop34h 15m

$412

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 11/17

7:20 pm-1:10 pm

1 stop10h 50m

Oslo Gardermoen

Wed 12/3

11:05 am-4:45 pm

1 stop12h 40m

$438

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 11/11

7:10 am-11:15 am

2 stops21h 05m

Oslo Gardermoen

Tue 11/18

4:00 pm-4:45 pm

1 stop31h 45m

$454

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 11/17

3:55 pm-5:40 pm

2 stops18h 45m

Oslo Gardermoen

Wed 12/3

6:05 am-2:55 pm

2 stops15h 50m

$477

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 11/17

9:50 pm-5:40 pm

1 stop12h 50m

Oslo Gardermoen

Wed 12/3

6:05 am-2:55 pm

2 stops15h 50m

$482

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 11/5

2:00 pm-1:00 pm

2 stops16h 00m

Oslo Gardermoen

Fri 11/7

6:45 am-8:00 pm

2 stops20h 15m

$492

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Sat 11/8

9:10 pm-5:10 pm

2 stops37h 00m

Oslo Gardermoen

Tue 11/11

6:45 am-12:10 pm

1 stop12h 25m

$496

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 11/28

8:00 am-5:40 pm

2 stops26h 40m

Oslo Gardermoen

Fri 12/12

6:15 am-5:03 pm

2 stops17h 48m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 42 results
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Best time to book a flight from Illinois to Oslo Gardermoen

Have a flexible travel schedule? Discover the best time to fly to Oslo Gardermoen 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 Oslo Gardermoen Airport

What is the cheapest month to book a flight from Illinois to Oslo Gardermoen Airport?

Currently, February is the cheapest month in which you can book a flight from Illinois to Oslo Gardermoen Airport (average of $383). Flying from Illinois to Oslo Gardermoen Airport in June is currently the most expensive (average of $621). 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.

What is the cheapest time of day to fly from IL to OSL?

Find hourly flight availability from Illinois to Oslo Gardermoen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

When flying from Illinois to Oslo Gardermoen Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 14% versus a flight in the afternoon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Oslo Gardermoen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Oslo Gardermoen Airport?

    Departing from Illinois to Oslo Gardermoen Airport will take you 10h 05m. The distance from Illinois to Oslo Gardermoen Airport is about 4039 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Illinois to Oslo Gardermoen Airport?

    When deciding which route to take from Illinois to Oslo Gardermoen Airport consider Chicago O'Hare Intl - Oslo Gardermoen, Chicago Midway - Oslo Gardermoen or Lambert-St Louis - Oslo Gardermoen as they are the most popular.

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

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

  • How can I find direct flights from Illinois to Oslo Gardermoen?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Oslo Gardermoen 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 Illinois to Oslo Gardermoen Airport?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Oslo Gardermoen Airport (average of $383). Flying from Illinois to Oslo Gardermoen Airport in June is currently the most expensive (average of $621). 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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Alternative routes for Illinois to Oslo Gardermoen

See prices for flight routes from nearby airports that may be better suited for you.
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Dulles Intl to Sandefjord flights
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Indianapolis to Oslo Gardermoen flights
Portland to Oslo Gardermoen flights

Top 10 airlines flying from Illinois to Oslo Gardermoen

Discover the top 10 airlines that operate flights from Illinois to Oslo Gardermoen. 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$390Average$796FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$419Average$611FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$494Average$645FlexibilityNo cancel feeOn-time76%
SWISSCheapest$513Average$634FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$516Average$553FlexibilityNo cancel feeOn-time71%
FinnairCheapest$521Average$674FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$530Average$678FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$532Average$645FlexibilityNo cancel feeOn-time69%
KLMCheapest$545Average$741FlexibilityNo cancel feeOn-time75%
DeltaCheapest$562Average$775FlexibilityNo cancel feeOn-timeN/A

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