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$355+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — CHI
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
1 adult, Economy
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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 February 23, 2025.

Round-trip from

$355
(Ticket)

Popular in

July

Cheapest in

November

Average price

$524
From Oslo to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($87 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 23, 2025.

This Ticket deal was found by Cheapflights users on 2/22. 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.
Mon 4/141:10 pmOSL - ORD
1 stop11h 40mFinnair
Wed 4/305:45 pmORD - OSL
1 stop22h 45mFinnair
Deal found 2/22$355
This Ticket deal was found by Cheapflights users on 2/22. 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.
Tue 4/17:45 amOSL - ORD
1 stop14h 00mBritish Airways
Sun 4/64:55 pmORD - OSL
1 stop23h 45mBritish Airways
Deal found 2/22$392
This Travelis deal was found by Cheapflights users on 2/22. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/141:10 pmOSL - ORD
1 stop11h 40mMultiple Airlines
Wed 4/308:20 pmORD - OSL
1 stop20h 10mMultiple Airlines
Deal found 2/22$397
This American Airlines deal was found by Cheapflights users on 2/22. 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.
Mon 4/141:10 pmOSL - ORD
1 stop11h 40mAmerican Airlines
Wed 4/3010:20 pmORD - OSL
1 stop18h 10mAmerican Airlines
Deal found 2/22$410
This Delta deal was found by Cheapflights users on 2/22. 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.
Tue 4/16:30 amOSL - MDW
2 stops18h 32mDelta
Sun 4/66:42 pmMDW - OSL
2 stops16h 53mDelta
Deal found 2/22$468
This Sembo deal was found by Cheapflights users on 2/22. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/142:55 pmTRF - ORD
1 stop32h 15mScandinavian Airlines
Wed 4/307:20 amORD - TRF
2 stops24h 00mScandinavian Airlines
Deal found 2/22$505
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:00 amOSL - ORD
1 stop15h 10mLufthansa
Sat 1/33:55 pmORD - OSL
1 stop33h 50mLufthansa
Deal found 2/22$506
This United Airlines deal was found by Cheapflights users on 2/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:00 amOSL - ORD
2 stops24h 42mUnited Airlines
Sat 1/33:55 pmORD - OSL
1 stop18h 40mUnited Airlines
Deal found 2/22$545
This Expedia deal was found by Cheapflights users on 2/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/146:05 pmOSL - ORD
2 stops24h 30mBrussels Airlines
Wed 4/305:50 pmORD - OSL
1 stop16h 25mBrussels Airlines
Deal found 2/22$620
This Orbitz deal was found by Cheapflights users on 2/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/243:00 pmOSL - ORD
1 stop30h 30mIberia
Mon 3/3110:30 pmORD - OSL
1 stop18h 00mIberia
Deal found 2/22$632
This Icelandair deal was found by Cheapflights users on 2/22. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/74:30 pmOSL - ORD
1 stop11h 45mIcelandair
Mon 12/226:30 pmORD - OSL
1 stop10h 05mIcelandair
Deal found 2/22$646
This Aeromexico deal was found by Cheapflights users on 2/22. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/308:25 amOSL - ORD
1 stop13h 35mAir France
Sat 8/306:10 pmORD - OSL
2 stops39h 30mAir France
Deal found 2/22$745

Find flights from Oslo to Chicago within your budget

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 February 23, 2025.

Fly from

Oslo

Fly to

Chicago

Route

Depart

Return

Price

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 4/14

1:10 pm-5:50 pm

1 stop11h 40m

Chicago O'Hare Intl

Wed 4/30

5:45 pm-11:30 pm

1 stop22h 45m

$355

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Tue 4/1

7:45 am-2:45 pm

1 stop14h 00m

Chicago O'Hare Intl

Sun 4/6

4:55 pm-11:40 pm

1 stop23h 45m

$392

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 4/14

1:10 pm-5:50 pm

1 stop11h 40m

Chicago O'Hare Intl

Wed 4/30

8:20 pm-11:30 pm

1 stop20h 10m

$397

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 4/14

1:10 pm-5:50 pm

1 stop11h 40m

Chicago O'Hare Intl

Wed 4/30

10:20 pm-11:30 pm

1 stop18h 10m

$410

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Tue 4/1

6:30 am-6:02 pm

2 stops18h 32m

Chicago Midway

Sun 4/6

6:42 pm-6:35 pm

2 stops16h 53m

$468

OsloChicago

TRF - ORD

TRFORD

Oslo Sandefjord

Mon 4/14

2:55 pm-4:10 pm

1 stop32h 15m

Chicago O'Hare Intl

Wed 4/30

7:20 am-2:20 pm

2 stops24h 00m

$505

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 4/14

6:05 pm-11:35 am

2 stops24h 30m

Chicago O'Hare Intl

Wed 4/30

5:50 pm-5:15 pm

1 stop16h 25m

$620

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 7/7

4:30 pm-9:15 pm

1 stop11h 45m

Chicago O'Hare Intl

Mon 12/22

6:30 pm-11:35 am

1 stop10h 05m

$646

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Tue 7/15

9:45 am-11:16 pm

2 stops20h 31m

Chicago O'Hare Intl

Sun 7/20

2:07 pm-9:00 am

2 stops35h 53m

$706

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Fri 7/4

11:45 am-1:50 pm

1 stop33h 05m

Chicago O'Hare Intl

Sat 12/20

4:45 pm-2:20 pm

1 stop14h 35m

$769

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 34 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.

Travel insights for flights from Oslo to Chicago

Get recent, data-driven insights about flights from Oslo to Chicago including ideal travel times, pricing trends, and more.

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 February 14, 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 February 23, 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 February 23, 2025.
Get a feel of what it's like to fly with Delta, LOT and Finnair 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
8,191 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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
8,191 reviews
Delta
8.0
Very good
8,191 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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
1,081 reviews
Delta
8.0
Very good
8,191 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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
1,271 reviews
Delta
8.0
Very good
8,191 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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

Air France
7.4
Good
1,448 reviews
Delta
8.0
Very good
8,191 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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

United Airlines
7.4
Good
8,746 reviews
Delta
8.0
Very good
8,191 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

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 Finnair is currently your cheapest option to Chicago, with prices starting at $355. Additional round-trip tickets that might be worth considering are offered by British Airways and American Airlines, with the lowest prices starting at $392 and $410, respectively. You may be able to fly from Oslo to Chicago for 30% less than the average price by searching for these airlines.

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

    $434 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 LOT and British Airways, with prices starting from $462 and $476, 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
New Buffalo
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
Stavanger to O'Hare Intl flights
Oslo Gardermoen to St. Louis flights

Top 4 airlines flying from Oslo to Chicago

Discover the top 4 airlines 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 February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$370Average$664FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$416Average$578FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$424Average$490FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$462Average$573FlexibilityNo cancel feeOn-time69%
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