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$250+ Cheap flights from Illinois 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.
ORD — OSL
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Illinois to Oslo

Keep the following information in mind while searching for Illinois to Oslo flight deals. Data was 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 Illinois to Oslo
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One-way flight from Illinois 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 Illinois to Oslo

Cheapest flights from Illinois to Oslo
Explore the most affordable flight options available from Illinois 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 Illinois to Oslo within your budget

Customize your flight search to find flights from Illinois 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

Illinois

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 48 results
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Best time to book a flight from Illinois to Oslo

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

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

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Oslo (average of $567). Flying from Illinois 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 IL to OSL?

Find hourly flight availability from Illinois 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.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Oslo as you normally would.

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.
To help decide which airline to fly from Illinois to Oslo, see what other customers have to say about Delta, KLM and Finnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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 Illinois 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 to fly from Illinois to Oslo one-way?

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $319. British Airways flights start at $432 while deals on KLM start at $449 one-way.

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

    When deciding which route to take from Illinois 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 Illinois to Oslo that include hotel bookings?

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Oslo (average of $567). Flying from Illinois 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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Alternative routes for Illinois to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Oslo Gardermoen flights
John F Kennedy Intl to Oslo Gardermoen flights
O'Hare Intl to Oslo Gardermoen flights
Seattle to Oslo Gardermoen flights
LaGuardia to Oslo Gardermoen flights
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Dulles Intl to Oslo Gardermoen flights
Los Angeles to Oslo Gardermoen flights
San Francisco to Oslo Gardermoen flights
Midway to Oslo Gardermoen flights
Boston to Oslo Gardermoen flights
Baltimore to Oslo Gardermoen flights
Reagan-National to Oslo Gardermoen flights
John F Kennedy Intl to Sandefjord flights
O'Hare Intl to Sandefjord flights
Hobby to Oslo Gardermoen flights
John F Kennedy Intl to Bergen flights
Miami to Oslo Gardermoen flights
Dallas/Fort Worth to Oslo Gardermoen flights
Newark to Bergen flights
Denver to Oslo Gardermoen flights
George Bush Intcntl to Oslo Gardermoen flights
Detroit to Oslo Gardermoen flights
Dulles Intl to Sandefjord flights
San Francisco to Sandefjord flights
Stewart to Oslo Gardermoen flights
LaGuardia to Bergen flights
Orlando to Oslo Gardermoen flights
Burbank to Oslo Gardermoen flights
Santa Ana to Oslo Gardermoen flights
Boston to Sandefjord flights
Philadelphia to Oslo Gardermoen flights
Los Angeles to Sandefjord flights
Newark to Sandefjord flights
Portland to Oslo Gardermoen flights
Seattle to Sandefjord flights
Atlanta to Oslo Gardermoen flights
Charlotte to Oslo Gardermoen flights
Oakland to Oslo Gardermoen flights
San Jose to Oslo Gardermoen flights
Minneapolis to Sandefjord flights
Sky Harbor Intl to Oslo Gardermoen flights
San Diego to Oslo Gardermoen flights
Austin to Oslo Gardermoen flights
Dulles Intl to Bergen flights
O'Hare Intl to Bergen flights
Kansas City to Oslo Gardermoen flights
Love Field to Oslo Gardermoen flights
Denver to Sandefjord flights
Asheville to Oslo Gardermoen flights

Top 10 airlines flying from Illinois to Oslo

Discover the top 10 airlines that operate flights from Illinois 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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