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$252+ Cheap flights from Chicago (CHI) to Oslo

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — OSL
Jan 10 — Jan 171
Sat 1/10
Sat 1/17
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Oslo are usually found in November or October, booked 60 days in advance, depart on a Sunday or Wednesday and return on a Thursday

Cheap flight deals from Chicago to Oslo

Cheapest flights from Chicago to Oslo
Explore the most affordable flight options available from Chicago to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 11, 2025.

This Expedia deal was found by Cheapflights users on 12/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:50 pmORD - OSL
1 stop34h 20mMultiple Airlines
Fri 12/129:35 amOSL - ORD
1 stop12h 45mMultiple Airlines
Deal found 12/9$488
This Cheapflightsfares deal was found by Cheapflights users on 12/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:10 pmORD - OSL
2 stops14h 30mLufthansa
Fri 12/129:35 amOSL - ORD
1 stop12h 45mLufthansa
Deal found 12/9$517
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1411:51 amORD - OSL
2 stops22h 19mUnited Airlines
Tue 12/161:45 pmOSL - ORD
2 stops26h 51mUnited Airlines
Deal found 12/10$541
This Cheapflightsfares deal was found by Cheapflights users on 12/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:10 pmORD - OSL
2 stops16h 30mLufthansa
Fri 12/129:35 amOSL - ORD
1 stop12h 45mLufthansa
Deal found 12/9$577
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:10 pmORD - OSL
1 stop34h 00mMultiple Airlines
Thu 6/118:35 amOSL - ORD
1 stop16h 15mMultiple Airlines
Deal found 12/9$580
This KAYAK deal was found by Cheapflights users on 12/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:50 pmORD - OSL
2 stops35h 20mSWISS
Wed 1/71:00 pmOSL - ORD
1 stop30h 45mSWISS
Deal found 12/9$651
This KAYAK deal was found by Cheapflights users on 12/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:45 pmORD - OSL
2 stops37h 25mSWISS
Tue 1/61:00 pmOSL - ORD
2 stops56h 10mSWISS
Deal found 12/9$671
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:50 pmORD - OSL
1 stop12h 50mUnited Airlines
Wed 1/711:50 amOSL - ORD
2 stops32h 55mUnited Airlines
Deal found 12/9$677
This Delta deal was found by Cheapflights users on 12/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1010:49 amMDW - OSL
2 stops14h 51mDelta
Thu 6/116:30 amOSL - MDW
2 stops18h 35mDelta
Deal found 12/9$896
This oojo deal was found by Cheapflights users on 12/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:20 pmORD - TRF
1 stop11h 45mScandinavian Airlines
Fri 12/122:35 pmTRF - ORD
1 stop33h 10mScandinavian Airlines
Deal found 12/9$1,288
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:55 pmORD - TRF
2 stops14h 15mMultiple Airlines
Mon 1/59:40 amTRF - ORD
1 stop17h 15mMultiple Airlines
Deal found 12/9$1,527
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:20 pmORD - TRF
1 stop11h 25mMultiple Airlines
Sun 1/47:05 pmTRF - ORD
2 stops50h 16mMultiple Airlines
Deal found 12/10$1,616

Find flight deals from Chicago to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Oslo (OS1). 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 December 11, 2025.

Round-trip from

$362
(Ticket)

One-way from

$252
(TAP AIR PORTUGAL)

Popular in

June

Cheapest in

November

Average price

$612
From Chicago (CHI) to Oslo
Search Deals
One-way flight from Chicago (CHI) to Oslo
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Oslo 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 December 11, 2025.
Use the filters below to find and compare flights from Chicago to Oslo that are best for you.

Fly from

Chicago

Fly to

Oslo

Route

Depart

Return

Price

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 2/18

6:30 pm-11:35 am

1 stop10h 05m

Oslo Gardermoen

Fri 3/6

1:10 pm-5:20 pm

1 stop11h 10m

$420

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Fri 1/23

10:29 am-9:20 am

2 stops15h 51m

Oslo Gardermoen

Fri 1/30

8:00 am-4:55 pm

1 stop15h 55m

$430

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Fri 2/20

7:20 pm-1:10 pm

1 stop10h 50m

Oslo Gardermoen

Fri 3/6

12:10 pm-4:55 pm

1 stop11h 45m

$463

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Thu 2/19

7:20 pm-1:10 pm

1 stop10h 50m

Oslo Gardermoen

Sun 3/8

11:05 am-5:45 pm

1 stop12h 40m

$463

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 2/23

7:20 pm-1:10 pm

1 stop10h 50m

Oslo Gardermoen

Sat 3/14

10:00 am-5:45 pm

1 stop13h 45m

$463

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 4/15

9:40 pm-6:00 pm

1 stop13h 20m

Oslo Gardermoen

Mon 4/27

1:05 pm-7:55 pm

1 stop13h 50m

$489

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 4/15

3:45 pm-6:00 pm

2 stops19h 15m

Oslo Gardermoen

Mon 4/27

1:05 pm-7:55 pm

1 stop13h 50m

$493

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 1/13

11:00 am-9:20 am

2 stops15h 20m

Oslo Gardermoen

Fri 1/23

11:05 am-10:29 pm

2 stops18h 24m

$500

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 4/1

2:15 pm-1:45 pm

2 stops16h 30m

Oslo Gardermoen

Tue 4/7

6:30 am-2:15 pm

1 stop14h 45m

$505

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 4/15

4:40 pm-7:15 pm

2 stops19h 35m

Oslo Gardermoen

Mon 4/27

8:30 pm-5:43 pm

2 stops52h 13m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to Oslo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Oslo. Price data was last updated on December 5, 2025.

Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Oslo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago to Oslo?

Currently, December is the cheapest month in which you can book a flight from Chicago to Oslo (average of $377). Flying from Chicago to Oslo in June is currently the most expensive (average of $621). 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 CHI to OSL?

Find hourly flight availability from Chicago to Oslo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Chicago to Oslo in the morning. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight at noon.

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

How often are flights from Chicago to Oslo delayed?

About 40% of weekly flights between Chicago and Oslo have experienced delays in the past year, with the average delay time being 244 minutes.

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

Historically, flights departing in the morning 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?

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

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

Over the last year, Atlas Air have had the lowest number of delays on this route, with just 50% of flights being delayed.

Reviews of airlines servicing Oslo

Get insights into the airlines that provide service to Oslo. 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 Oslo. Reviews last updated December 11, 2025.
Read through reviews of airlines operating flights from Chicago to Oslo, such as Scandinavian Airlines, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,605 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Scandinavian Airlines
7.4
Good
1,605 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
United Airlines
7.4
Good
9,094 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
American Airlines
7.2
Good
11,049 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Icelandair
7.0
Good
589 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
British Airways
6.7
Okay
7,571 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Related info for your journey

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

    There are many flights that can get you from Chicago to Oslo in 10h 05m. Fly via Icelandair, Scandinavian Airlines, or Delta to get the fastest option. Chicago and Oslo are separated by a distance of 4039 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Chicago to Oslo round-trip?

    Scandinavian Airlines, at $388, was found to be the cheapest airline from Chicago to Oslo.Alternate airlines to your destination round-trip include Icelandair and Lufthansa. You may be able to fly from Chicago to Oslo for 36% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $222. Users have also found prices from $328 and $387 on Lufthansa and SWISS, respectively.

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

    When deciding which route to take from Chicago to Oslo consider Chicago O'Hare Intl - Oslo Gardermoen, Chicago Midway - Oslo Gardermoen or Chicago O'Hare Intl - Oslo Sandefjord as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago to Oslo 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 Chicago to Oslo?

    Currently, December is the cheapest month in which you can book a flight from Chicago to Oslo (average of $377). Flying from Chicago to Oslo in June is currently the most expensive (average of $621). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Chicago to Oslo

Discover the top 10 airlines that operate flights from Chicago to Oslo. 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 December 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$388Average$782FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$417Average$604FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$494Average$614FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$505Average$570FlexibilityNo cancel feeOn-time71%
SWISSCheapest$513Average$634FlexibilityNo cancel feeOn-time79%
FinnairCheapest$521Average$629FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$530Average$684FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$532Average$644FlexibilityNo cancel feeOn-time69%
DeltaCheapest$544Average$775FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$544Average$747FlexibilityNo cancel feeOn-time75%

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