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$305+ Cheap flights from Oslo Gardermoen (OSL) to Chicago (CHI)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — CHI
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo Gardermoen to Chicago are usually found in November or January, booked 53 days in advance, depart on a Thursday or Monday and return on a Sunday

Cheap flight deals from Oslo Gardermoen to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Oslo Gardermoen (OSL) to Chicago (CHI). 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

$465
(American Airlines)

One-way from

$305
(oojo)

Popular in

July

Cheapest in

November

Average price

$556
From Oslo Gardermoen to Chicago (CHI)
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One-way flight from Oslo Gardermoen to Chicago (CHI)
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Highest demand for flights based on searches. 16% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 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 Oslo Gardermoen to Chicago

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

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:00 amOSL - ORD
2 stops21h 39mAmerican Airlines
Sun 10/191:43 pmORD - OSL
2 stops13h 52mAmerican Airlines
Deal found 8/13$465
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/611:35 amOSL - ORD
2 stops16h 49mBritish Airways
Sun 10/198:40 pmORD - OSL
1 stop20h 00mBritish Airways
Deal found 8/14$466
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:40 amOSL - ORD
2 stops16h 50mBritish Airways
Sun 9/148:40 pmORD - OSL
1 stop20h 00mBritish Airways
Deal found 8/13$467
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:45 amOSL - ORD
2 stops15h 10mMultiple Airlines
Mon 9/223:50 pmORD - OSL
2 stops19h 10mMultiple Airlines
Deal found 8/14$468
This Flysmarter 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:35 amOSL - ORD
1 stop15h 20mMultiple Airlines
Sun 10/1910:40 amORD - OSL
2 stops18h 35mMultiple Airlines
Deal found 8/14$469
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:35 amOSL - ORD
2 stops23h 40mUnited Airlines
Sun 8/316:25 pmORD - OSL
1 stop22h 25mUnited Airlines
Deal found 8/14$473
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:45 amOSL - ORD
2 stops15h 19mAir Canada
Sun 10/1910:40 amORD - OSL
2 stops18h 35mAir Canada
Deal found 8/14$477
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:45 amOSL - ORD
1 stop12h 10mUnited Airlines
Mon 9/16:00 pmORD - OSL
1 stop17h 05mUnited Airlines
Deal found 8/13$481
This Austrian Airlines 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/212:55 pmOSL - ORD
1 stop29h 25mAustrian Airlines
Thu 9/254:20 pmORD - OSL
1 stop14h 50mAustrian Airlines
Deal found 8/13$483
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/104:30 pmOSL - ORD
1 stop11h 45mIcelandair
Wed 10/87:25 pmORD - OSL
1 stop10h 10mIcelandair
Deal found 8/13$484
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:15 amOSL - ORD
2 stops23h 00mUnited Airlines
Thu 9/253:05 pmORD - OSL
1 stop19h 55mUnited Airlines
Deal found 8/13$485
This Delta deal was found by Cheapflights users on 8/12. 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.
Sat 12/66:30 amOSL - MDW
2 stops18h 37mDelta
Mon 12/81:00 pmMDW - OSL
2 stops17h 50mDelta
Deal found 8/12$510

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oslo Gardermoen to Chicago 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 Oslo Gardermoen Airport to Chicago that are best for you.

Fly from

Oslo Gardermoen

Fly to

Chicago

Route

Depart

Return

Price

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 12/4

7:05 am-7:45 pm

2 stops19h 40m

Chicago O'Hare Intl

Mon 12/8

8:45 pm-10:55 am

1 stop31h 10m

$465

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 10/6

8:00 am-10:39 pm

2 stops21h 39m

Chicago O'Hare Intl

Sun 10/19

1:43 pm-10:35 am

2 stops13h 52m

$465

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 10/6

11:35 am-9:24 pm

2 stops16h 49m

Chicago O'Hare Intl

Sun 10/19

8:40 pm-11:40 pm

1 stop20h 00m

$466

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Sun 9/21

2:55 pm-1:20 pm

1 stop29h 25m

Chicago O'Hare Intl

Thu 9/25

10:30 pm-6:00 pm

1 stop12h 30m

$466

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Wed 9/10

7:40 am-5:30 pm

2 stops16h 50m

Chicago O'Hare Intl

Wed 9/17

10:35 pm-11:30 pm

1 stop17h 55m

$467

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Wed 9/17

7:40 am-5:30 pm

2 stops16h 50m

Chicago O'Hare Intl

Wed 9/24

10:35 pm-11:30 pm

1 stop17h 55m

$467

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Wed 9/10

7:40 am-5:30 pm

2 stops16h 50m

Chicago O'Hare Intl

Sun 9/14

8:40 pm-11:40 pm

1 stop20h 00m

$467

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Fri 9/12

6:45 am-2:55 pm

2 stops15h 10m

Chicago O'Hare Intl

Mon 9/22

3:50 pm-6:00 pm

2 stops19h 10m

$468

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Sat 12/6

6:30 am-6:07 pm

2 stops18h 37m

Chicago Midway

Mon 12/8

1:00 pm-1:50 pm

2 stops17h 50m

$510

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Mon 10/6

6:30 am-6:25 pm

2 stops18h 55m

Chicago Midway

Sun 10/19

6:23 pm-4:20 pm

2 stops14h 57m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 31 results
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Best time to book a flight from Oslo Gardermoen to Chicago

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

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

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

The price you pay for your flight from Oslo Gardermoen Airport to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 53 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Chicago (average of $245). Flying from Oslo Gardermoen Airport to Chicago in March is currently the most expensive (average of $321). 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 OSL to CHI?

Find hourly flight availability from Oslo Gardermoen to Chicago. 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.

It’s optimal to fly from Oslo Gardermoen Airport to Chicago in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the afternoon.

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

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated August 14, 2025.
See what other customers who have flown with Scandinavian Airlines, Icelandair, and Lufthansa from Oslo Gardermoen Airport to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,467 reviews

Crew

8.0

Comfort

7.3

Overall

7.4

Entertainment

6.6

Boarding

7.6

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Scandinavian Airlines
7.4
Good
1,467 reviews
Scandinavian Airlines
7.4
Good
1,467 reviews

Crew

8.0

Comfort

7.3

Overall

7.4

Entertainment

6.6

Boarding

7.6

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Icelandair
7.0
Good
526 reviews
Scandinavian Airlines
7.4
Good
1,467 reviews

Crew

8.0

Comfort

7.3

Overall

7.4

Entertainment

6.6

Boarding

7.6

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Lufthansa
6.8
Okay
7,317 reviews
Scandinavian Airlines
7.4
Good
1,467 reviews

Crew

8.0

Comfort

7.3

Overall

7.4

Entertainment

6.6

Boarding

7.6

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
British Airways
6.7
Okay
7,266 reviews
Scandinavian Airlines
7.4
Good
1,467 reviews

Crew

8.0

Comfort

7.3

Overall

7.4

Entertainment

6.6

Boarding

7.6

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight

Related info for your journey

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

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Chicago (average of $245). Flying from Oslo Gardermoen Airport to Chicago in March is currently the most expensive (average of $321). 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 Chicago?

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Porter
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