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$250+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — OSL
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Chicago to Oslo are usually found in November or March, booked 47 days in advance, depart on a Sunday or Wednesday and return on a Thursday

Cheap 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 febrero 20, 2025.

Round-trip from

$475
(Gotogate)

One-way from

$250
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$560
From Chicago (CHI) to Oslo
Search Deals
One-way flight from Chicago (CHI) to Oslo
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($188 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find 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 febrero 20, 2025.

This Gotogate deal was found by Cheapflights users on 2/20. 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.
dom. 3/28:25 pmORD - OSL
1 stop14h 30mTAP AIR PORTUGAL
jue. 3/136:45 pmOSL - ORD
1 stop27h 45mTAP AIR PORTUGAL
Deal found 2/20$475
This oojo deal was found by Cheapflights users on 2/20. 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.
mar. 4/157:30 pmORD - OSL
1 stop12h 55mIcelandair
mié. 4/234:30 pmOSL - ORD
1 stop11h 45mIcelandair
Deal found 2/20$476
This Mytrip deal was found by Cheapflights users on 2/20. 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.
mar. 4/16:45 amORD - OSL
3 stops22h 50mMultiple Airlines
mar. 4/81:50 pmOSL - ORD
2 stops24h 13mMultiple Airlines
Deal found 2/20$517
This oojo deal was found by Cheapflights users on 2/20. 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.
lun. 3/1710:45 pmORD - OSL
1 stop13h 50mBritish Airways
mié. 3/266:50 amOSL - ORD
1 stop18h 55mBritish Airways
Deal found 2/20$527
This American Airlines deal was found by Cheapflights users on 2/20. 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.
mar. 4/111:42 amORD - OSL
2 stops15h 53mAmerican Airlines
mar. 4/87:45 amOSL - ORD
1 stop16h 15mAmerican Airlines
Deal found 2/20$529
This oojo deal was found by Cheapflights users on 2/20. 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.
mar. 9/27:50 pmORD - OSL
1 stop32h 10mTurkish Airlines
mar. 9/166:40 pmOSL - ORD
1 stop34h 20mTurkish Airlines
Deal found 2/20$533
This Mytrip deal was found by Cheapflights users on 2/20. 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.
jue. 2/204:00 pmORD - OSL
2 stops18h 55mAir Canada
dom. 3/29:35 amOSL - ORD
2 stops56h 19mAir Canada
Deal found 2/20$538
This Ticket deal was found by Cheapflights users on 2/20. 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.
dom. 3/308:05 pmORD - OSL
1 stop21h 05mScandinavian Airlines
mar. 4/157:10 amOSL - ORD
1 stop16h 00mScandinavian Airlines
Deal found 2/20$554
This Delta deal was found by Cheapflights users on 2/20. 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.
vie. 11/75:20 pmORD - OSL
2 stops18h 30mDelta
mar. 11/2512:40 pmOSL - ORD
1 stop32h 50mDelta
Deal found 2/20$558
This United Airlines deal was found by Cheapflights users on 2/20. 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.
lun. 3/177:20 amORD - OSL
2 stops23h 25mUnited Airlines
mié. 3/266:20 amOSL - ORD
2 stops34h 34mUnited Airlines
Deal found 2/20$561
This SWISS deal was found by Cheapflights users on 2/20. 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.
dom. 11/27:05 pmORD - OSL
1 stop34h 05mSWISS
mar. 11/251:00 pmOSL - ORD
1 stop34h 15mSWISS
Deal found 2/20$565
This Delta deal was found by Cheapflights users on 2/20. 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.
mar. 4/17:09 pmMDW - OSL
2 stops14h 11mDelta
mar. 4/86:30 amOSL - MDW
2 stops18h 32mDelta
Deal found 2/20$572

Find flights from Chicago to Oslo within your budget

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 febrero 20, 2025.

Fly from

Chicago

Fly to

Oslo

Route

Depart

Return

Price

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

dom. 3/2

8:25 pm-5:55 pm

1 stop14h 30m

Oslo Gardermoen

jue. 3/13

6:45 pm-4:30 pm

1 stop27h 45m

$475

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

mar. 4/15

7:30 pm-3:25 pm

1 stop12h 55m

Oslo Gardermoen

mié. 4/23

4:30 pm-9:15 pm

1 stop11h 45m

$476

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

mar. 4/1

6:45 am-12:35 pm

3 stops22h 50m

Oslo Gardermoen

mar. 4/8

1:50 pm-7:03 am

2 stops24h 13m

$517

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

lun. 3/17

10:45 pm-6:35 pm

1 stop13h 50m

Oslo Gardermoen

mié. 3/26

6:50 am-7:45 pm

1 stop18h 55m

$527

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

mar. 4/1

11:42 am-10:35 am

2 stops15h 53m

Oslo Gardermoen

mar. 4/8

7:45 am-5:00 pm

1 stop16h 15m

$529

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

dom. 3/30

8:05 pm-12:10 am

1 stop21h 05m

Oslo Gardermoen

mar. 4/15

7:10 am-4:10 pm

1 stop16h 00m

$554

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

dom. 3/2

4:25 pm-10:20 pm

1 stop22h 55m

Oslo Gardermoen

vie. 3/14

6:30 am-3:30 pm

1 stop15h 00m

$560

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

lun. 3/17

7:20 am-12:45 pm

2 stops23h 25m

Oslo Gardermoen

mié. 3/26

6:20 am-10:54 am

2 stops34h 34m

$561

ChicagoOslo

MDW - OSL

MDWOSL

Chicago Midway

mar. 4/1

7:09 pm-4:20 pm

2 stops14h 11m

Oslo Gardermoen

mar. 4/8

6:30 am-6:02 pm

2 stops18h 32m

$572

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

dom. 3/2

4:58 pm-4:25 pm

2 stops16h 27m

Oslo Gardermoen

jue. 3/13

6:30 am-8:53 pm

2 stops20h 23m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 36 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.

Travel insights for flights from Chicago to Oslo

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

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 February 14, 2025.

Booking 47 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, November is the cheapest month in which you can book a flight from Chicago to Oslo (average of $567). Flying from Chicago to Oslo in June is currently the most expensive (average of $1,134). 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 febrero 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Chicago to Oslo at noon. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Chicago to Oslo?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Oslo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to Oslo flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Oslo by month

Plan your trip to Oslo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oslo ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo when rainfall is around 1.6 in.

Temperature in Oslo by month

Plan your trip to Oslo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oslo, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

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 febrero 20, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Chicago to Oslo. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,274 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    TAP AIR PORTUGAL, at $475, was found to be the cheapest airline from Chicago to Oslo.Alternate airlines to your destination round-trip include Icelandair and British Airways. You may be able to fly from Chicago to Oslo for 24% 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 TAP AIR PORTUGAL. According to our data, you can fly for as low as $319. Users have also found prices from $432 and $449 on British Airways and KLM, 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.

  • Where are the most common layover locations when flying from Chicago to Oslo?

    Chicago to Oslo flights have a layover in Reykjavik most often.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Reykjavik travelers tend to visit Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool more than anywhere else. Travelers on a layover in Reykjavik can visit Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool, by traveling 23.2 mi, 23.3 mi, and 24.6 mi, respectively after landing at Reykjavik Keflavik Intl. Those looking to explore during their layover in Reykjavik can rent a car from Reykjavik Keflavik Intl for about $54 per day.

  • Where are the least popular layover locations for Chicago to Oslo flights?

    Chicago to Oslo flights have a layover in Copenhagen the least frequently.

  • 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, November is the cheapest month in which you can book a flight from Chicago to Oslo (average of $567). Flying from Chicago to Oslo in June is currently the most expensive (average of $1,134). 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

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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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$427Average$683FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$431Average$781FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$503Average$683FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$516Average$614FlexibilityNo cancel feeOn-time71%
FinnairCheapest$520Average$652FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$533Average$877FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$540Average$820FlexibilityNo cancel feeOn-time77%
KLMCheapest$546Average$668FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$550Average$660FlexibilityNo cancel feeOn-time69%
DeltaCheapest$582Average$752FlexibilityNo cancel feeOn-timeN/A
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