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$426+ Cheap flights from Oslo to Chicago (CHI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — CHI
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo to Chicago are usually found in November or September, booked 8 days in advance, depart on a Thursday or Monday and return on a Sunday

Cheap flight deals from Oslo to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Oslo (OS1) 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 April 22, 2025.

Round-trip from

$426
(Flightsearch)

Popular in

July

Cheapest in

November

Average price

$510
From Oslo to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 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 Oslo to Chicago

Cheapest flights from Oslo to Chicago
Explore the most affordable flight options available from Oslo to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This Ticket deal was found by Cheapflights users on 4/22. 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.
Thu 5/227:45 amOSL - ORD
1 stop15h 10mBritish Airways
Fri 6/69:15 pmORD - OSL
1 stop18h 15mBritish Airways
Deal found 4/22$433
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 9/31:20 pmOSL - ORD
2 stops18h 39mAmerican Airlines
Sun 9/218:00 amORD - OSL
2 stops19h 35mAmerican Airlines
Deal found 4/22$450
This lastminute.com deal was found by Cheapflights users on 4/22. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/54:30 pmOSL - ORD
1 stop11h 45mIcelandair
Fri 9/1910:15 pmORD - OSL
1 stop10h 10mIcelandair
Deal found 4/22$451
This Scandinavian Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 9/37:05 pmOSL - ORD
1 stop28h 05mScandinavian Airlines
Mon 9/227:15 pmORD - OSL
1 stop10h 40mScandinavian Airlines
Deal found 4/22$452
This Delta deal was found by Cheapflights users on 4/22. 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 8/276:30 amOSL - ORD
1 stop15h 10mDelta
Tue 9/25:45 pmORD - OSL
2 stops15h 55mDelta
Deal found 4/22$456
This Delta deal was found by Cheapflights users on 4/22. 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 8/276:30 amOSL - MDW
2 stops18h 58mDelta
Tue 9/25:59 pmMDW - OSL
2 stops15h 41mDelta
Deal found 4/22$461
This Flysmarter deal was found by Cheapflights users on 4/22. 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.
Thu 5/228:45 pmOSL - ORD
2 stops27h 15mMultiple Airlines
Fri 6/69:15 pmORD - OSL
1 stop18h 15mMultiple Airlines
Deal found 4/22$479
This Finnair deal was found by Cheapflights users on 4/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/68:35 amOSL - ORD
2 stops34h 15mFinnair
Mon 9/224:56 pmORD - OSL
2 stops18h 44mFinnair
Deal found 4/22$498
This Lufthansa deal was found by Cheapflights users on 4/22. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:50 amOSL - ORD
1 stop20h 05mLufthansa
Wed 9/179:40 pmORD - OSL
1 stop13h 25mLufthansa
Deal found 4/22$499
This Air Canada deal was found by Cheapflights users on 4/22. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/26:45 amOSL - ORD
2 stops34h 06mAir Canada
Sun 9/211:05 pmORD - OSL
2 stops18h 40mAir Canada
Deal found 4/22$511
This Air France deal was found by Cheapflights users on 4/22. 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.
Sat 9/612:45 pmOSL - ORD
2 stops15h 19mAir France
Sat 9/205:10 pmORD - OSL
1 stop16h 30mAir France
Deal found 4/22$548
This Ovago deal was found by Cheapflights users on 4/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/235:05 pmOSL - ORD
1 stop27h 45mIberia
Sun 7/69:15 pmORD - OSL
1 stop30h 10mIberia
Deal found 4/22$550

Cheapflights Fare Finder

Customize your flight search to find flights from Oslo 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 April 22, 2025.
Use the filters below to find and compare flights from Oslo to Chicago that are best for you.

Fly from

Oslo

Fly to

Chicago

Route

Depart

Return

Price

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 5/22

7:45 am-3:55 pm

1 stop15h 10m

Chicago O'Hare Intl

Fri 6/6

9:15 pm-10:30 pm

1 stop18h 15m

$433

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Wed 9/3

1:20 pm-12:59 am

2 stops18h 39m

Chicago O'Hare Intl

Sun 9/21

8:00 am-10:35 am

2 stops19h 35m

$450

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Fri 9/5

4:30 pm-9:15 pm

1 stop11h 45m

Chicago O'Hare Intl

Fri 9/19

10:15 pm-3:25 pm

1 stop10h 10m

$451

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Wed 9/3

7:05 pm-4:10 pm

1 stop28h 05m

Chicago O'Hare Intl

Mon 9/22

7:15 pm-12:55 pm

1 stop10h 40m

$452

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Wed 8/27

6:30 am-2:40 pm

1 stop15h 10m

Chicago O'Hare Intl

Tue 9/2

5:45 pm-4:40 pm

2 stops15h 55m

$456

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Wed 8/27

6:30 am-6:28 pm

2 stops18h 58m

Chicago Midway

Tue 9/2

5:59 pm-4:40 pm

2 stops15h 41m

$461

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 5/22

8:45 pm-5:00 pm

2 stops27h 15m

Chicago O'Hare Intl

Fri 6/6

9:15 pm-10:30 pm

1 stop18h 15m

$479

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Sat 9/6

8:35 am-11:50 am

2 stops34h 15m

Chicago O'Hare Intl

Mon 9/22

4:56 pm-6:40 pm

2 stops18h 44m

$498

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Sun 9/7

6:50 am-7:55 pm

1 stop20h 05m

Chicago O'Hare Intl

Wed 9/17

9:40 pm-6:05 pm

1 stop13h 25m

$499

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Tue 9/2

6:45 am-9:51 am

2 stops34h 06m

Chicago O'Hare Intl

Sun 9/21

1:05 pm-2:45 pm

2 stops18h 40m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Oslo to Chicago. Price data was last updated on April 18, 2025.

The price you pay for your flight from Oslo to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 8 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 to Chicago?

Currently, August is the cheapest month in which you can book a flight from Oslo to Chicago (average of $245). Flying from Oslo 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 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 April 22, 2025.

It’s optimal to fly from Oslo 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.

Rainfall in Chicago by month

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

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 April 22, 2025.
Get a feel of what it's like to fly with Delta, KLM and LOT from Oslo to Chicago by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LOT
7.6
Good
1,065 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

    Flying on British Airways is currently your cheapest option to Chicago, with prices starting at $426. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $459 and $482, respectively. You may be able to fly from Oslo to Chicago for 17% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Oslo to Chicago one-way?

    $489 is the cheapest one-way deal found within the past few days, from LOT. You may also be able to find cheap deals on TAP AIR PORTUGAL and Lufthansa, with prices starting from $499 and $551, respectively.

  • What are the most popular routes from Oslo to Chicago?

    The most popular flight routes from Oslo to Chicago are Oslo Gardermoen - Chicago O'Hare Intl, Oslo Gardermoen - Chicago Midway and Oslo Sandefjord - Chicago O'Hare Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oslo 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 to Chicago?

    Currently, August is the cheapest month in which you can book a flight from Oslo to Chicago (average of $245). Flying from Oslo 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 Oslo?

Book flights to Oslo if you plan to visit one of these locations
Merrillville
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Oslo to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Oslo Gardermoen to O'Hare Intl flights
Bergen to O'Hare Intl flights
Trondheim to O'Hare Intl flights
Oslo Gardermoen to St. Louis flights
Stavanger to O'Hare Intl flights

Top airline flying from Oslo to Chicago

Discover the top airline that operate flights from Oslo to Chicago. 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 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$416Average$512FlexibilityNo cancel feeOn-time70%

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