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Oslo Gardermoen

$254+ Cheap flights from Chicago (CHI) 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — OSL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Oslo Gardermoen are usually found in November or October, booked 47 days in advance, depart on a Sunday or Wednesday and return on a Thursday

Cheap flight deals from Chicago to Oslo Gardermoen

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Oslo Gardermoen (OSL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$421
(FlightHub)

One-way from

$254
(oojo)

Popular in

June

Cheapest in

November

Average price

$646
From Chicago (CHI) to Oslo Gardermoen
Search Deals
One-way flight from Chicago (CHI) to Oslo Gardermoen
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($114 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Chicago to Oslo Gardermoen

Cheapest flights from Chicago to Oslo Gardermoen
Explore the most affordable flight options available from Chicago to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/13. 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.
Tue 9/97:25 pmORD - OSL
1 stop10h 10mIcelandair
Wed 9/171:50 pmOSL - ORD
1 stop11h 25mIcelandair
Deal found 8/13$421
This FlightHub deal was found by Cheapflights users on 8/14. 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.
Tue 8/267:25 pmORD - OSL
1 stop13h 00mIcelandair
Wed 9/34:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 8/14$422
This oojo deal was found by Cheapflights users on 8/13. 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.
Fri 9/197:25 pmORD - OSL
1 stop13h 00mIcelandair
Sun 10/510:30 pmOSL - ORD
1 stop26h 45mIcelandair
Deal found 8/13$427
This Gurufare deal was found by Cheapflights users on 8/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:15 pmORD - OSL
1 stop10h 10mIcelandair
Wed 9/34:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 8/14$437
This Icelandair deal was found by Cheapflights users on 8/14. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:25 pmORD - OSL
1 stop13h 00mIcelandair
Wed 9/34:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 8/14$444
This FlightHub deal was found by Cheapflights users on 8/14. 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.
Tue 8/2610:15 pmORD - OSL
1 stop10h 10mIcelandair
Tue 9/24:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 8/14$447
This Gurufare deal was found by Cheapflights users on 8/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:25 pmORD - OSL
1 stop10h 10mIcelandair
Wed 9/34:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 8/14$450
This Icelandair deal was found by Cheapflights users on 8/14. 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 Icelandair 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
Wed 9/34:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 8/14$457
This FlightHub deal was found by Cheapflights users on 8/14. 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.
Thu 8/287:25 pmORD - OSL
1 stop13h 00mIcelandair
Tue 9/24:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 8/14$460
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Mon 8/2510:15 pmORD - OSL
1 stop10h 10mIcelandair
Tue 9/24:30 pmOSL - ORD
1 stop32h 45mIcelandair
Deal found 8/14$461
This Gotogate deal was found by Cheapflights users on 8/13. 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.
Tue 11/46:30 pmORD - OSL
1 stop10h 05mIcelandair
Fri 11/141:10 pmOSL - ORD
1 stop11h 10mIcelandair
Deal found 8/13$468
This Icelandair deal was found by Cheapflights users on 8/14. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:25 pmORD - OSL
1 stop10h 10mIcelandair
Tue 9/24:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 8/14$469

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 August 14, 2025.
Use the filters below to find and compare flights from Chicago to Oslo Gardermoen Airport that are best for you.

Fly from

Chicago

Fly to

Oslo Gardermoen

Route

Depart

Return

Price

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 9/9

7:25 pm-12:35 pm

1 stop10h 10m

Oslo Gardermoen

Wed 9/17

1:50 pm-6:15 pm

1 stop11h 25m

$421

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 8/26

7:25 pm-3:25 pm

1 stop13h 00m

Oslo Gardermoen

Thu 9/4

4:30 pm-9:15 pm

1 stop11h 45m

$422

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 8/26

7:25 pm-3:25 pm

1 stop13h 00m

Oslo Gardermoen

Wed 9/3

4:30 pm-9:15 pm

1 stop11h 45m

$422

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Fri 9/19

7:25 pm-3:25 pm

1 stop13h 00m

Oslo Gardermoen

Sun 10/5

10:30 pm-6:15 pm

1 stop26h 45m

$427

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 8/25

10:15 pm-3:25 pm

1 stop10h 10m

Oslo Gardermoen

Fri 9/5

4:30 pm-9:15 pm

1 stop11h 45m

$437

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 8/25

10:15 pm-3:25 pm

1 stop10h 10m

Oslo Gardermoen

Wed 9/3

4:30 pm-9:15 pm

1 stop11h 45m

$437

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 8/25

7:25 pm-12:35 pm

1 stop10h 10m

Oslo Gardermoen

Thu 9/4

1:50 pm-9:15 pm

1 stop14h 25m

$437

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Sun 8/24

7:25 pm-3:25 pm

1 stop13h 00m

Oslo Gardermoen

Wed 9/3

4:30 pm-9:15 pm

1 stop11h 45m

$444

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Sun 8/24

7:25 pm-3:25 pm

1 stop13h 00m

Oslo Gardermoen

Thu 9/4

1:50 pm-6:15 pm

1 stop11h 25m

$444

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 8/26

10:15 pm-3:25 pm

1 stop10h 10m

Oslo Gardermoen

Fri 9/5

4:30 pm-9:15 pm

1 stop11h 45m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 37 results
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Best time to book a flight from Chicago to Oslo Gardermoen

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

How far ahead should I book a flight from Chicago to Oslo Gardermoen Airport?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Oslo Gardermoen. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Oslo Gardermoen Airport, you should look to book at least 47 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Chicago to Oslo Gardermoen Airport (average of $567). Flying from Chicago to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,009). 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 CHI to OSL?

Find hourly flight availability from Chicago 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 August 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Chicago to Oslo Gardermoen Airport at noon. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the evening.

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

What’s the top layover airport for flights from Chicago to Oslo Gardermoen Airport?

Share of 1-stop round-trip flights from Chicago to Oslo Gardermoen Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Copenhagen (CPH) – chosen by Cheapflights users on 44% of 1-stop itineraries from Chicago to Oslo Gardermoen Airport on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Oslo Gardermoen Airport?

Average round-trip fare for 1-stop flights from Chicago to Oslo Gardermoen Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Frankfurt am Main (FRA) is the most affordable 1-stop option, with an average round-trip price of $533.

What’s the fastest layover option from Chicago to Oslo Gardermoen Airport?

Shortest average travel time for 1-stop one-way flights from Chicago to Oslo Gardermoen Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 06m.

Which airport typically offers the quickest layover for flights from Chicago to Oslo Gardermoen Airport?

Average layover duration for 1-stop one-way flights from Chicago to Oslo Gardermoen Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 19m.

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 August 14, 2025.
See what other customers who have flown with Finnair, Scandinavian Airlines, and United Airlines from Chicago to Oslo Gardermoen Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,321 reviews

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Finnair
7.6
Good
1,321 reviews
Finnair
7.6
Good
1,321 reviews

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Scandinavian Airlines
7.4
Good
1,468 reviews
Finnair
7.6
Good
1,321 reviews

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
United Airlines
7.4
Good
8,916 reviews
Finnair
7.6
Good
1,321 reviews

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Icelandair
7.0
Good
526 reviews
Finnair
7.6
Good
1,321 reviews

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
British Airways
6.7
Okay
7,266 reviews
Finnair
7.6
Good
1,321 reviews

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 flying from Chicago to Oslo Gardermoen Airport round-trip?

    Our cheapest airline available from Chicago to Oslo Gardermoen Airport is Icelandair. Our recent data shows that you can find tickets from as low as $408 on this airline. Additional options worth looking into are Scandinavian Airlines and Lufthansa, starting at $432 and $515 round-trip. You may be able to fly from Chicago to Oslo Gardermoen Airport for 33% less than the average price by searching for these airlines.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Chicago to Oslo Gardermoen Airport (average of $567). Flying from Chicago to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,009). 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

Traveling to a place near Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport if you plan to visit one of these locations
Gardermoen

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Top 9 airlines flying from Chicago to Oslo Gardermoen

Discover the top 9 airlines that operate flights from Chicago 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$408Average$606FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$432Average$806FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$515Average$653FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$532Average$710FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$540Average$685FlexibilityNo cancel feeOn-time70%
KLMCheapest$550Average$751FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$550Average$658FlexibilityNo cancel feeOn-time69%
FinnairCheapest$552Average$678FlexibilityNo cancel feeOn-time76%
DeltaCheapest$562Average$870FlexibilityNo cancel feeOn-timeN/A

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