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$287+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — CHI
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo to Chicago are usually found in November or September, booked 53 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 September 17, 2025.

Round-trip from

$418
(Travelis)

One-way from

$287
(Finnair)

Popular in

July

Cheapest in

November

Average price

$454
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. 13% 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 September 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 September 17, 2025.

This Travelis deal was found by Cheapflights users on 9/16. 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.
Fri 10/171:50 pmOSL - ORD
1 stop14h 25mIcelandair
Thu 10/307:30 pmORD - OSL
1 stop10h 05mIcelandair
Deal found 9/16$418
This Ticket deal was found by Cheapflights users on 9/17. 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 10/132:15 pmOSL - ORD
1 stop30h 55mMultiple Airlines
Mon 10/276:20 pmORD - OSL
1 stop16h 00mMultiple Airlines
Deal found 9/17$448
This Ticket deal was found by Cheapflights users on 9/16. 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 10/167:45 amOSL - ORD
1 stop13h 55mBritish Airways
Wed 10/297:25 pmORD - OSL
1 stop12h 45mBritish Airways
Deal found 9/16$450
This oojo deal was found by Cheapflights users on 9/17. 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 11/18:00 amOSL - ORD
1 stop15h 45mScandinavian Airlines
Sat 11/87:20 pmORD - OSL
1 stop10h 50mScandinavian Airlines
Deal found 9/17$452
This oojo deal was found by Cheapflights users on 9/17. 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 11/151:10 pmOSL - ORD
1 stop11h 10mIcelandair
Sat 11/296:30 pmORD - OSL
1 stop19h 05mIcelandair
Deal found 9/17$454
This Ticket deal was found by Cheapflights users on 9/17. 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 11/109:25 amOSL - ORD
1 stop11h 55mKLM
Mon 11/244:25 pmORD - OSL
1 stop18h 50mKLM
Deal found 9/17$456
This Gotogate deal was found by Cheapflights users on 9/17. 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.
Mon 11/107:20 amOSL - ORD
2 stops19h 00mBritish Airways
Mon 11/246:25 pmORD - OSL
1 stop21h 15mBritish Airways
Deal found 9/17$460
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/237:45 amOSL - ORD
1 stop16h 15mAmerican Airlines
Tue 10/289:45 pmORD - OSL
1 stop18h 55mAmerican Airlines
Deal found 9/16$463
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Fri 10/311:45 amOSL - ORD
1 stop12h 15mAmerican Airlines
Tue 10/78:40 pmORD - OSL
1 stop19h 45mAmerican Airlines
Deal found 9/17$464
This American Airlines deal was found by Cheapflights users on 9/15. 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 12/47:05 amOSL - ORD
1 stop13h 45mAmerican Airlines
Mon 12/810:06 amORD - OSL
2 stops17h 49mAmerican Airlines
Deal found 9/15$465
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/138:00 amOSL - ORD
1 stop12h 50mAmerican Airlines
Mon 10/279:45 pmORD - OSL
1 stop18h 55mAmerican Airlines
Deal found 9/17$466
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/236:30 amOSL - MDW
2 stops18h 55mDelta
Tue 10/286:23 pmMDW - OSL
2 stops13h 27mDelta
Deal found 9/15$471

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 September 17, 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

Mon 10/13

2:15 pm-2:10 pm

1 stop30h 55m

Chicago O'Hare Intl

Mon 10/27

6:20 pm-4:20 pm

1 stop16h 00m

$448

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Sat 11/15

1:10 pm-5:20 pm

1 stop11h 10m

Chicago O'Hare Intl

Sat 11/29

6:30 pm-8:35 pm

1 stop19h 05m

$454

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 11/10

9:25 am-2:20 pm

1 stop11h 55m

Chicago O'Hare Intl

Mon 11/24

4:25 pm-6:15 pm

1 stop18h 50m

$456

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 10/23

7:45 am-5:00 pm

1 stop16h 15m

Chicago O'Hare Intl

Tue 10/28

9:45 pm-10:40 pm

1 stop18h 55m

$463

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Fri 10/3

11:45 am-5:00 pm

1 stop12h 15m

Chicago O'Hare Intl

Tue 10/7

8:40 pm-11:25 pm

1 stop19h 45m

$464

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 10/16

7:45 am-8:11 pm

2 stops19h 26m

Chicago O'Hare Intl

Wed 10/29

9:45 pm-10:40 pm

1 stop18h 55m

$464

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 12/4

7:05 am-1:50 pm

1 stop13h 45m

Chicago O'Hare Intl

Mon 12/8

6:35 pm-10:40 pm

1 stop21h 05m

$465

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Thu 10/23

6:30 am-6:25 pm

2 stops18h 55m

Chicago Midway

Tue 10/28

6:23 pm-1:50 pm

2 stops13h 27m

$471

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Thu 10/30

6:30 am-6:25 pm

2 stops17h 55m

Chicago Midway

Thu 11/6

1:08 pm-1:50 pm

2 stops17h 42m

$471

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 10/13

11:35 am-8:18 am

2 stops27h 43m

Chicago O'Hare Intl

Mon 10/27

6:36 pm-10:40 pm

2 stops22h 04m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 43 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 September 12, 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 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 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 September 17, 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.

How much does it cost to fly round-trip from Oslo 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 September 17, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines, Icelandair, and Lufthansa from Oslo to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,486 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Icelandair
7.0
Good
545 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Lufthansa
6.8
Okay
7,409 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
British Airways
6.7
Okay
7,367 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

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.

  • How long is the flight from Oslo to Chicago?

    For as low as $454, Icelandair can have you in Chicago from Oslo in 11h 10m. Oslo and Chicago are separated by a distance of 4039 mi. This flight may include one or multiple stops.

  • 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
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Lansing
Hammond
Benton Harbor
Porter
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.
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