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$368+ Cheap flights from Oslo 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — CHI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo to Chicago are usually found in November or September, booked 39 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 June 12, 2025.

Round-trip from

$478
(Finnair)

One-way from

$368
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$624
From Oslo to Chicago (CHI)
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One-way flight from Oslo to Chicago (CHI)
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Highest demand for flights based on searches. 15% potential increase in price ($91 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 June 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 June 12, 2025.

This Finnair deal was found by Cheapflights users on 6/10. 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.
Tue 7/157:25 pmOSL - ORD
1 stop23h 30mFinnair
Sun 7/209:30 pmORD - OSL
1 stop12h 05mFinnair
Deal found 6/10$478
This Delta deal was found by Cheapflights users on 6/12. 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 8/236:30 amOSL - MDW
2 stops19h 07mDelta
Mon 9/159:30 amMDW - OSL
2 stops16h 15mDelta
Deal found 6/12$479
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/146:35 amOSL - ORD
2 stops23h 55mUnited Airlines
Tue 8/266:00 pmORD - OSL
1 stop21h 10mUnited Airlines
Deal found 6/11$490
This Gotogate deal was found by Cheapflights users on 6/11. 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.
Thu 8/142:55 pmTRF - ORD
1 stop32h 15mScandinavian Airlines
Mon 8/257:15 pmORD - TRF
1 stop12h 05mScandinavian Airlines
Deal found 6/11$534
This Lufthansa deal was found by Cheapflights users on 6/10. 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.
Sat 12/136:15 amOSL - ORD
2 stops19h 06mLufthansa
Sat 1/310:35 pmORD - OSL
1 stop27h 10mLufthansa
Deal found 6/10$560
This AirNGo deal was found by Cheapflights users on 6/12. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/215:40 amOSL - ORD
1 stop13h 30mMultiple Airlines
Sun 8/39:40 pmORD - OSL
1 stop17h 30mMultiple Airlines
Deal found 6/12$569
This Gurufare deal was found by Cheapflights users on 6/11. 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.
Tue 7/157:25 pmOSL - ORD
1 stop25h 25mBritish Airways
Sun 7/209:15 pmORD - OSL
1 stop30h 10mBritish Airways
Deal found 6/11$572
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 7/241:10 pmOSL - ORD
1 stop11h 40mAmerican Airlines
Thu 8/79:30 pmORD - OSL
1 stop12h 05mAmerican Airlines
Deal found 6/10$589
This Travelis deal was found by Cheapflights users on 6/10. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/26:15 pmOSL - ORD
1 stop28h 55mScandinavian Airlines
Sat 8/167:15 pmORD - OSL
1 stop31h 00mScandinavian Airlines
Deal found 6/10$606
This SWISS deal was found by Cheapflights users on 6/9. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/235:40 amOSL - ORD
2 stops42h 40mSWISS
Wed 7/302:20 pmORD - OSL
1 stop15h 45mSWISS
Deal found 6/9$622
This oojo deal was found by Cheapflights users on 6/11. 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 8/94:30 pmOSL - ORD
1 stop32h 45mIcelandair
Sat 8/307:25 pmORD - OSL
1 stop10h 10mIcelandair
Deal found 6/11$643
This Delta deal was found by Cheapflights users on 6/12. 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.
Fri 8/811:50 amOSL - ORD
2 stops17h 13mDelta
Sat 8/307:00 amORD - OSL
1 stop16h 50mDelta
Deal found 6/12$657

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 June 12, 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

Tue 7/15

7:25 pm-11:55 am

1 stop23h 30m

Chicago O'Hare Intl

Sun 7/20

9:30 pm-4:35 pm

1 stop12h 05m

$478

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Sat 8/23

6:30 am-6:37 pm

2 stops19h 07m

Chicago Midway

Mon 9/15

9:30 am-8:45 am

2 stops16h 15m

$479

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 8/14

6:35 am-11:30 pm

2 stops23h 55m

Chicago O'Hare Intl

Tue 8/26

6:00 pm-10:10 pm

1 stop21h 10m

$490

OsloChicago

TRF - ORD

TRFORD

Oslo Sandefjord

Thu 8/14

2:55 pm-4:10 pm

1 stop32h 15m

Chicago O'Hare Intl

Mon 8/25

7:15 pm-2:20 pm

1 stop12h 05m

$534

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 7/21

5:40 am-12:10 pm

1 stop13h 30m

Chicago O'Hare Intl

Sun 8/3

9:40 pm-10:10 pm

1 stop17h 30m

$569

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Tue 7/15

7:25 pm-1:50 pm

1 stop25h 25m

Chicago O'Hare Intl

Sun 7/20

9:15 pm-10:25 am

1 stop30h 10m

$572

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 7/24

1:10 pm-5:50 pm

1 stop11h 40m

Chicago O'Hare Intl

Thu 8/7

9:30 pm-4:35 pm

1 stop12h 05m

$589

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Sat 8/2

6:15 pm-4:10 pm

1 stop28h 55m

Chicago O'Hare Intl

Sat 8/16

7:15 pm-9:15 am

1 stop31h 00m

$606

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Fri 8/8

4:30 pm-11:25 am

2 stops25h 55m

Chicago O'Hare Intl

Sat 8/30

6:25 pm-6:00 pm

1 stop16h 35m

$607

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Wed 7/23

5:40 am-5:20 pm

2 stops42h 40m

Chicago O'Hare Intl

Wed 7/30

2:20 pm-1:05 pm

1 stop15h 45m

$622

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 37 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 June 9, 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 39 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 June 12, 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 June 12, 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
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LOT
7.6
Good
1,077 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Finnair is currently your cheapest option to Chicago, with prices starting at $478. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $479 and $490, respectively. You may be able to fly from Oslo to Chicago for 8% less than the average price by searching for these airlines.

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

    $482 is the cheapest one-way deal found within the past few days, from Scandinavian Airlines. You may also be able to find cheap deals on Icelandair and LOT, with prices starting from $492 and $497, 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
Lansing
Benton Harbor
Porter
Hammond
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
Stavanger to O'Hare Intl flights
Oslo Gardermoen to St. Louis 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$563Average$745FlexibilityNo cancel feeOn-time76%

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