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$315+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — CHI
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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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 January 19, 2026.

Round-trip from

$315
(Ticket)

Popular in

July

Cheapest in

November

Average price

$479
From Oslo to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($88 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).
Search Deals
Average for round-trip flights in January 2026
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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 January 19, 2026.

This Ticket deal was found by Cheapflights users on 1/17. 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.
Tue 3/314:30 pm
OSL
-
ORD
1 stop32h 45m
Icelandair
Wed 4/87:25 pm
ORD
-
OSL
1 stop10h 10m
Icelandair
Deal found 1/17$315
This Ticket deal was found by Cheapflights users on 1/17. 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.
Sun 2/19:30 pm
OSL
-
ORD
1 stop26h 50m
Icelandair
Sun 2/156:30 pm
ORD
-
OSL
1 stop10h 05m
Icelandair
Deal found 1/17$323
This Ticket deal was found by Cheapflights users on 1/17. 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.
Tue 3/314:30 pm
OSL
-
ORD
1 stop32h 45m
Icelandair
Thu 4/97:25 pm
ORD
-
OSL
1 stop10h 10m
Icelandair
Deal found 1/17$347
This Ticket deal was found by Cheapflights users on 1/19. 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.
Sun 2/19:30 pm
OSL
-
ORD
1 stop26h 50m
Icelandair
Sat 2/146:30 pm
ORD
-
OSL
1 stop19h 05m
Icelandair
Deal found 1/19$371
This Mytrip deal was found by Cheapflights users on 1/18. 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 4/131:50 pm
OSL
-
ORD
1 stop11h 25m
Icelandair
Sun 4/2610:25 pm
ORD
-
OSL
1 stop31h 10m
Icelandair
Deal found 1/18$372
This Travelis deal was found by Cheapflights users on 1/17. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/19:30 pm
OSL
-
ORD
1 stop26h 50m
Icelandair
Tue 2/176:30 pm
ORD
-
OSL
1 stop10h 05m
Icelandair
Deal found 1/17$378
This Mytrip deal was found by Cheapflights users on 1/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/31:10 pm
OSL
-
ORD
1 stop11h 10m
Icelandair
Tue 3/107:30 pm
ORD
-
OSL
1 stop10h 05m
Icelandair
Deal found 1/17$397
This Travelis deal was found by Cheapflights users on 1/17. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:30 pm
OSL
-
ORD
1 stop25h 20m
Multiple Airlines
Wed 7/2910:35 pm
ORD
-
OSL
1 stop17h 50m
Multiple Airlines
Deal found 1/17$398
This Ticket deal was found by Cheapflights users on 1/17. 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.
Fri 3/136:15 am
OSL
-
ORD
1 stop16h 05m
Lufthansa
Tue 3/2410:50 pm
ORD
-
OSL
1 stop12h 50m
Lufthansa
Deal found 1/17$412
This Cheapflightsfares deal was found by Cheapflights users on 1/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/155:05 pm
OSL
-
ORD
1 stop26h 25m
Multiple Airlines
Sun 6/219:15 pm
ORD
-
OSL
1 stop19h 25m
Multiple Airlines
Deal found 1/18$419
This Ticket deal was found by Cheapflights users on 1/17. 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.
Tue 3/39:25 am
OSL
-
MDW
2 stops15h 12m
KLM
Tue 3/101:10 pm
MDW
-
OSL
2 stops13h 30m
KLM
Deal found 1/17$491
This Delta deal was found by Cheapflights users on 1/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:30 am
OSL
-
MDW
2 stops18h 24m
Delta
Thu 4/91:10 pm
MDW
-
OSL
2 stops14h 55m
Delta
Deal found 1/17$498

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 January 19, 2026.
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 3/31

4:30 pm-6:15 pm

1 stop32h 45m

Chicago O'Hare Intl

Wed 4/8

7:25 pm-12:35 pm

1 stop10h 10m

$315

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Tue 3/31

4:30 pm-6:15 pm

1 stop32h 45m

Chicago O'Hare Intl

Thu 4/9

7:25 pm-12:35 pm

1 stop10h 10m

$347

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 6/15

5:05 pm-12:30 pm

1 stop26h 25m

Chicago O'Hare Intl

Sun 6/21

9:15 pm-11:40 pm

1 stop19h 25m

$424

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 4/13

6:45 am-2:55 pm

2 stops15h 10m

Chicago O'Hare Intl

Sun 4/26

2:20 pm-1:15 pm

1 stop15h 55m

$477

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 2/5

1:10 pm-5:20 pm

1 stop11h 10m

Chicago O'Hare Intl

Mon 2/9

6:30 pm-11:35 am

1 stop10h 05m

$477

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 4/13

6:30 am-2:30 pm

1 stop15h 00m

Chicago O'Hare Intl

Mon 4/27

8:28 pm-6:45 pm

2 stops15h 17m

$480

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Tue 3/31

6:30 am-6:31 pm

2 stops19h 01m

Chicago O'Hare Intl

Wed 4/8

8:30 pm-6:45 pm

2 stops15h 15m

$487

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Tue 3/3

9:25 am-5:37 pm

2 stops15h 12m

Chicago Midway

Tue 3/10

1:10 pm-8:40 am

2 stops13h 30m

$491

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Sun 2/1

7:20 am-5:00 pm

1 stop16h 40m

Chicago O'Hare Intl

Sun 2/15

8:35 pm-10:40 pm

1 stop19h 05m

$492

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 4/13

6:30 am-6:04 pm

2 stops18h 34m

Chicago O'Hare Intl

Sun 4/26

8:50 am-8:45 am

2 stops16h 55m

$497

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

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 January 16, 2026.

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 80 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, April is the cheapest month in which you can book a flight from Oslo to Chicago (average of $338). Flying from Oslo to Chicago in July is currently the most expensive (average of $565). 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.

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

How often are flights from Oslo to Chicago delayed?

About 50% of weekly flights between Oslo and Chicago have experienced delays in the past year, with the average delay time being 29 minutes.

What is the most punctual flight time for Oslo to Chicago flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Oslo to Chicago flights?

Over the last year, Qatar Airways have had the lowest number of delays on this route, with just 100% of flights being delayed.

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 January 19, 2026.
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
7.3
Good
1,655 reviews

Crew

8.0

Entertainment

6.6

Overall

7.3

Comfort

7.3

Boarding

7.6

Food

6.6

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
7.3
Good
1,655 reviews
Scandinavian Airlines
7.3
Good
1,655 reviews

Crew

8.0

Entertainment

6.6

Overall

7.3

Comfort

7.3

Boarding

7.6

Food

6.6

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
7.1
Good
597 reviews
Scandinavian Airlines
7.3
Good
1,655 reviews

Crew

8.0

Entertainment

6.6

Overall

7.3

Comfort

7.3

Boarding

7.6

Food

6.6

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
7,731 reviews
Scandinavian Airlines
7.3
Good
1,655 reviews

Crew

8.0

Entertainment

6.6

Overall

7.3

Comfort

7.3

Boarding

7.6

Food

6.6

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 $491, Icelandair can have you in Chicago from Oslo in 15h 12m. Oslo and Chicago are separated by a distance of 4045 mi. This flight may include one or multiple stops.

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

    $398 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Icelandair and Scandinavian Airlines, with prices starting from $437 and $502, 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, April is the cheapest month in which you can book a flight from Oslo to Chicago (average of $338). Flying from Oslo to Chicago in July is currently the most expensive (average of $565). 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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Lansing
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Hammond
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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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