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Oslo Gardermoen

$208+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OSL
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap 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 enero 29, 2026.

This Ticket deal was found by Cheapflights users on 1/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/146:30 pm
ORD
-
OSL
1 stop19h 05m
Icelandair
dom. 3/19:30 pm
OSL
-
ORD
1 stop26h 50m
Icelandair
Deal found 1/27$366
This CrystalTravel deal was found by Cheapflights users on 1/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/46:30 pm
ORD
-
OSL
1 stop10h 05m
Icelandair
mié. 3/111:10 pm
OSL
-
ORD
1 stop11h 10m
Icelandair
Deal found 1/28$391
This oojo deal was found by Cheapflights users on 1/27. 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.
vie. 4/176:00 pm
ORD
-
OSL
1 stop35h 00m
TAP AIR PORTUGAL
vie. 4/246:50 pm
OSL
-
ORD
1 stop28h 25m
TAP AIR PORTUGAL
Deal found 1/27$398
This oojo deal was found by Cheapflights users on 1/27. 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.
mié. 3/46:30 pm
ORD
-
OSL
1 stop10h 05m
Icelandair
dom. 3/89:30 pm
OSL
-
ORD
1 stop26h 50m
Icelandair
Deal found 1/27$399
This oojo deal was found by Cheapflights users on 1/26. 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.
sáb. 4/256:15 pm
ORD
-
OSL
1 stop34h 45m
TAP AIR PORTUGAL
sáb. 5/21:00 pm
OSL
-
ORD
1 stop34h 00m
TAP AIR PORTUGAL
Deal found 1/26$404
This oojo deal was found by Cheapflights users on 1/27. 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.
lun. 3/98:20 pm
ORD
-
OSL
1 stop11h 55m
Scandinavian Airlines
vie. 3/138:00 am
OSL
-
ORD
1 stop15h 55m
Scandinavian Airlines
Deal found 1/27$435
This oojo deal was found by Cheapflights users on 1/28. 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.
lun. 3/27:20 pm
ORD
-
OSL
1 stop13h 00m
Scandinavian Airlines
lun. 3/98:00 am
OSL
-
ORD
1 stop15h 45m
Scandinavian Airlines
Deal found 1/28$437
This FlightHub deal was found by Cheapflights users on 1/27. 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.
mié. 4/227:15 pm
ORD
-
OSL
1 stop29h 55m
Scandinavian Airlines
mar. 4/285:15 pm
OSL
-
ORD
1 stop29h 55m
Scandinavian Airlines
Deal found 1/27$438
This CrystalTravel deal was found by Cheapflights users on 1/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/97:25 pm
ORD
-
OSL
1 stop10h 10m
Icelandair
dom. 4/194:30 pm
OSL
-
ORD
1 stop11h 55m
Icelandair
Deal found 1/28$441
This CrystalTravel deal was found by Cheapflights users on 1/26. 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.
mié. 4/297:25 pm
ORD
-
OSL
1 stop13h 00m
Icelandair
vie. 5/81:50 pm
OSL
-
ORD
1 stop14h 35m
Icelandair
Deal found 1/26$446
This Mytrip deal was found by Cheapflights users on 1/28. 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.
lun. 4/137:25 pm
ORD
-
OSL
1 stop13h 00m
Icelandair
lun. 4/201:50 pm
OSL
-
ORD
1 stop11h 25m
Icelandair
Deal found 1/28$449
This Delta deal was found by Cheapflights users on 1/26. 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.
mié. 4/291:23 pm
MDW
-
OSL
2 stops17h 22m
Delta
vie. 5/86:30 am
OSL
-
MDW
2 stops18h 35m
Delta
Deal found 1/26$519

Find 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 enero 29, 2026.

Round-trip from

$366
(Ticket)

One-way from

$208
(oojo)

Popular in

June

Cheapest in

November

Average price

$504
From Illinois to Oslo Gardermoen
Search Deals
One-way flight from Illinois to Oslo Gardermoen
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 29, 2026.
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

lun. 5/4

7:25 pm-3:25 pm

1 stop13h 00m

Oslo Gardermoen

lun. 5/11

1:50 pm-6:15 pm

1 stop11h 25m

$467

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

lun. 5/4

3:35 pm-10:55 am

1 stop12h 20m

Oslo Gardermoen

lun. 5/11

7:10 am-4:59 pm

2 stops16h 49m

$502

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

vie. 4/17

1:36 pm-1:45 pm

2 stops17h 09m

Oslo Gardermoen

vie. 4/24

9:20 am-2:15 pm

1 stop11h 55m

$511

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

mié. 4/22

7:59 pm-6:45 pm

2 stops15h 46m

Oslo Gardermoen

mar. 4/28

9:20 am-2:15 pm

1 stop11h 55m

$511

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

sáb. 4/25

7:05 pm-2:25 pm

1 stop12h 20m

Oslo Gardermoen

sáb. 5/2

8:50 pm-1:50 pm

2 stops24h 00m

$517

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

vie. 4/3

4:20 pm-11:05 am

1 stop11h 45m

Oslo Gardermoen

jue. 4/9

6:30 am-2:15 pm

1 stop14h 45m

$519

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

sáb. 3/28

5:25 pm-1:25 pm

1 stop14h 00m

Oslo Gardermoen

lun. 4/6

5:20 pm-2:15 pm

1 stop27h 55m

$520

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

vie. 3/27

6:40 pm-10:30 pm

2 stops45h 50m

Oslo Gardermoen

sáb. 4/4

8:15 am-7:19 am

2 stops30h 04m

$520

ChicagoOslo

MDW - OSL

MDWOSL

Chicago Midway

lun. 4/13

1:23 pm-1:45 pm

2 stops17h 22m

Oslo Gardermoen

lun. 4/20

6:30 am-5:58 pm

2 stops18h 28m

$521

ChicagoOslo

MDW - OSL

MDWOSL

Chicago Midway

lun. 4/27

1:23 pm-1:45 pm

2 stops17h 22m

Oslo Gardermoen

lun. 5/4

6:30 am-5:58 pm

2 stops18h 28m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 48 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, December is the cheapest month in which you can book a flight from Illinois to Oslo Gardermoen Airport (average of $378). Flying from Illinois to Oslo Gardermoen Airport in June is currently the most expensive (average of $635). 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.

How much does it cost to fly round-trip from Illinois to Oslo Gardermoen Airport?

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 12h 20m. 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 cheapest airlines to fly from Illinois to Oslo Gardermoen Airport one-way?

    $213 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Scandinavian Airlines and SWISS, with prices starting from $261 and $361, respectively.

  • 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, December is the cheapest month in which you can book a flight from Illinois to Oslo Gardermoen Airport (average of $378). Flying from Illinois to Oslo Gardermoen Airport in June is currently the most expensive (average of $635). 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.

See more FAQs

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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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Top 9 airlines flying from Illinois to Oslo Gardermoen

Discover the top 9 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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$388Average$789FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$397Average$603FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$505Average$617FlexibilityNo cancel feeOn-time71%
DeltaCheapest$513Average$772FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$513Average$634FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$515Average$614FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$517Average$690FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$532Average$641FlexibilityNo cancel feeOn-time69%
KLMCheapest$544Average$770FlexibilityNo cancel feeOn-time75%

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