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Oslo Gardermoen

$267+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OSL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Round-trip from

$549
(oojo)

One-way from

$267
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$610
From Illinois to Oslo Gardermoen
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One-way flight from Illinois to Oslo Gardermoen
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Highest demand for flights based on searches. 19% potential increase in price ($154 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 17, 2025.

This oojo deal was found by Cheapflights users on 4/17. 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.
Sat 8/3010:15 pmORD - OSL
1 stop10h 10mIcelandair
Sat 9/64:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 4/17$549
This British Airways deal was found by Cheapflights users on 4/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:45 pmORD - OSL
1 stop21h 15mBritish Airways
Sun 11/238:45 amOSL - ORD
2 stops17h 35mBritish Airways
Deal found 4/17$554
This Mytrip deal was found by Cheapflights users on 4/17. 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 5/56:35 pmORD - OSL
1 stop22h 20mMultiple Airlines
Mon 5/126:35 amOSL - ORD
2 stops20h 37mMultiple Airlines
Deal found 4/17$559
This Gotogate deal was found by Cheapflights users on 4/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/58:40 amORD - OSL
2 stops21h 25mAir Canada
Mon 5/129:45 amOSL - ORD
2 stops17h 27mAir Canada
Deal found 4/17$564
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Fri 10/316:30 pmORD - OSL
2 stops15h 55mAmerican Airlines
Sat 11/87:05 amOSL - ORD
1 stop15h 20mAmerican Airlines
Deal found 4/17$566
This KLM deal was found by Cheapflights users on 4/17. 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.
Thu 8/74:20 pmORD - OSL
1 stop21h 35mKLM
Mon 8/185:20 pmOSL - ORD
1 stop27h 50mKLM
Deal found 4/17$579
This Air France deal was found by Cheapflights users on 4/17. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:10 pmORD - OSL
1 stop11h 40mAir France
Mon 8/256:05 amOSL - ORD
1 stop15h 55mAir France
Deal found 4/17$580
This Scandinavian Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 10/97:15 pmORD - OSL
1 stop14h 20mScandinavian Airlines
Tue 10/1411:05 amOSL - ORD
1 stop12h 05mScandinavian Airlines
Deal found 4/16$584
This Mytrip deal was found by Cheapflights users on 4/17. 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 5/56:35 pmORD - OSL
1 stop22h 20mSWISS
Mon 5/121:55 pmOSL - ORD
1 stop33h 00mSWISS
Deal found 4/17$585
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 8/111:00 pmMDW - OSL
2 stops15h 50mDelta
Thu 8/216:30 amOSL - MDW
2 stops18h 58mDelta
Deal found 4/17$589
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 8/111:35 pmORD - OSL
2 stops15h 15mDelta
Thu 8/216:30 amOSL - ORD
2 stops17h 20mDelta
Deal found 4/17$589
This United Airlines deal was found by Cheapflights users on 4/17. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:55 pmORD - OSL
2 stops17h 10mUnited Airlines
Thu 9/46:35 amOSL - ORD
2 stops15h 15mUnited Airlines
Deal found 4/17$605

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 April 17, 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

Sat 8/30

10:15 pm-3:25 pm

1 stop10h 10m

Oslo Gardermoen

Sat 9/6

4:30 pm-9:15 pm

1 stop11h 45m

$549

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 5/5

6:35 pm-11:55 pm

1 stop22h 20m

Oslo Gardermoen

Mon 5/12

6:35 am-8:12 pm

2 stops20h 37m

$559

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 5/5

8:40 am-1:05 pm

2 stops21h 25m

Oslo Gardermoen

Mon 5/12

9:45 am-8:12 pm

2 stops17h 27m

$564

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 8/12

9:15 pm-11:25 pm

1 stop19h 10m

Oslo Gardermoen

Wed 8/20

7:40 am-5:37 pm

2 stops16h 57m

$571

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Thu 8/7

4:20 pm-8:55 pm

1 stop21h 35m

Oslo Gardermoen

Mon 8/18

5:20 pm-2:10 pm

1 stop27h 50m

$579

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Fri 8/15

5:10 pm-11:50 am

1 stop11h 40m

Oslo Gardermoen

Mon 8/25

6:05 am-3:00 pm

1 stop15h 55m

$580

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Thu 10/9

7:15 pm-4:35 pm

1 stop14h 20m

Oslo Gardermoen

Tue 10/14

11:05 am-4:10 pm

1 stop12h 05m

$584

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 5/5

6:35 pm-11:55 pm

1 stop22h 20m

Oslo Gardermoen

Mon 5/12

1:55 pm-3:55 pm

1 stop33h 00m

$585

ChicagoOslo

MDW - OSL

MDWOSL

Chicago Midway

Mon 8/11

1:00 pm-11:50 am

2 stops15h 50m

Oslo Gardermoen

Thu 8/21

6:30 am-6:28 pm

2 stops18h 58m

$589

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 8/11

1:35 pm-11:50 am

2 stops15h 15m

Oslo Gardermoen

Thu 8/21

6:30 am-4:50 pm

2 stops17h 20m

$589

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 39 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, November is the cheapest month in which you can book a flight from Illinois to Oslo Gardermoen Airport (average of $567). Flying from Illinois to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,101). 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 April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Oslo Gardermoen Airport as you normally would.

Rainfall in Oslo Gardermoen by month

Plan your trip to Oslo Gardermoen by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oslo Gardermoen Airport ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo Gardermoen Airport when rainfall is around 1.6 in.

Temperature in Oslo Gardermoen by month

Plan your trip to Oslo Gardermoen by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oslo Gardermoen Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

Reviews of airlines servicing Oslo Gardermoen

Get insights into the airlines that provide service to Oslo Gardermoen. 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 Oslo Gardermoen. Reviews last updated April 17, 2025.
To help decide which airline to fly from Illinois to Oslo, see what other customers have to say about Delta, KLM and Finnair. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
775 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Illinois to Oslo Gardermoen Airport one-way?

    $267 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Icelandair and Air France, with prices starting from $306 and $452, 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, November is the cheapest month in which you can book a flight from Illinois to Oslo Gardermoen Airport (average of $567). Flying from Illinois to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,101). 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$402Average$661FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$444Average$787FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$503Average$684FlexibilityNo cancel feeOn-time70%
FinnairCheapest$520Average$676FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$532Average$635FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$533Average$821FlexibilityNo cancel feeOn-time76%
KLMCheapest$546Average$692FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$549Average$682FlexibilityNo cancel feeOn-time69%
DeltaCheapest$582Average$647FlexibilityNo cancel feeOn-timeN/A

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