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Oslo

$282+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OSL
abr. 27 — may. 41
dom. 4/27
dom. 5/4
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 abril 22, 2025.

Round-trip from

$575
(Gotogate)

One-way from

$316
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$611
From Illinois to Oslo
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One-way flight from Illinois to Oslo
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Highest demand for flights based on searches. 19% potential increase in price ($155 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 22, 2025.

This British Airways deal was found by Cheapflights users on 4/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/3111:53 amORD - OSL
2 stops16h 42mBritish Airways
sáb. 11/88:45 amOSL - ORD
2 stops17h 35mBritish Airways
Deal found 4/22$559
This United Airlines deal was found by Cheapflights users on 4/22. 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.
vie. 10/3110:25 pmORD - OSL
1 stop19h 05mUnited Airlines
sáb. 11/86:20 amOSL - ORD
2 stops21h 05mUnited Airlines
Deal found 4/22$566
This Gotogate deal was found by Cheapflights users on 4/22. 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.
lun. 5/58:40 amORD - OSL
2 stops21h 25mMultiple Airlines
mié. 5/146:50 amOSL - ORD
2 stops20h 22mMultiple Airlines
Deal found 4/22$569
This American Airlines deal was found by Cheapflights users on 4/22. 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. 8/127:10 pmORD - OSL
1 stop21h 15mAmerican Airlines
mié. 8/207:40 amOSL - ORD
2 stops16h 57mAmerican Airlines
Deal found 4/22$572
This KLM deal was found by Cheapflights users on 4/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/74:20 pmORD - OSL
1 stop21h 35mKLM
lun. 8/187:15 pmOSL - ORD
1 stop25h 55mKLM
Deal found 4/22$580
This Delta deal was found by Cheapflights users on 4/22. 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. 8/155:10 pmORD - OSL
1 stop11h 40mDelta
lun. 8/256:30 amOSL - ORD
2 stops19h 10mDelta
Deal found 4/22$585
This Delta deal was found by Cheapflights users on 4/22. 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.
lun. 8/111:00 pmMDW - OSL
2 stops15h 50mDelta
jue. 8/216:30 amOSL - MDW
2 stops18h 58mDelta
Deal found 4/22$590
This oojo deal was found by Cheapflights users on 4/21. 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. 9/87:15 pmORD - TRF
1 stop12h 05mScandinavian Airlines
mié. 9/172:55 pmTRF - ORD
1 stop32h 15mScandinavian Airlines
Deal found 4/21$598
This Air Canada deal was found by Cheapflights users on 4/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/1312:00 pmORD - OSL
2 stops18h 05mAir Canada
jue. 5/229:50 amOSL - ORD
2 stops17h 22mAir Canada
Deal found 4/22$606
This SWISS deal was found by Cheapflights users on 4/22. 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.
vie. 5/92:20 pmORD - OSL
1 stop26h 35mSWISS
dom. 5/185:40 amOSL - ORD
1 stop13h 30mSWISS
Deal found 4/22$607
This Finnair deal was found by Cheapflights users on 4/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/165:40 pmORD - OSL
1 stop21h 50mFinnair
dom. 5/258:35 amOSL - ORD
1 stop16h 15mFinnair
Deal found 4/22$614
This oojo deal was found by Cheapflights users on 4/22. 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.
dom. 8/37:15 pmORD - OSL
1 stop10h 40mScandinavian Airlines
jue. 8/145:15 pmOSL - ORD
1 stop29h 55mScandinavian Airlines
Deal found 4/22$649

Cheapflights Fare Finder

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 abril 22, 2025.
Use the filters below to find and compare flights from Illinois to Oslo that are best for you.

Fly from

Illinois

Fly to

Oslo

Route

Depart

Return

Price

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

vie. 8/15

4:55 pm-10:30 pm

1 stop22h 35m

Oslo Gardermoen

lun. 8/25

8:00 am-3:55 pm

1 stop14h 55m

$564

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

lun. 5/5

8:40 am-1:05 pm

2 stops21h 25m

Oslo Gardermoen

mié. 5/14

6:50 am-8:12 pm

2 stops20h 22m

$569

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

mar. 8/12

7:10 pm-11:25 pm

1 stop21h 15m

Oslo Gardermoen

mié. 8/20

7:40 am-5:37 pm

2 stops16h 57m

$572

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

jue. 8/7

4:20 pm-8:55 pm

1 stop21h 35m

Oslo Gardermoen

lun. 8/18

7:15 pm-2:10 pm

1 stop25h 55m

$580

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

vie. 8/15

5:10 pm-11:50 am

1 stop11h 40m

Oslo Gardermoen

lun. 8/25

6:30 am-6:40 pm

2 stops19h 10m

$585

ChicagoOslo

MDW - OSL

MDWOSL

Chicago Midway

lun. 8/11

1:00 pm-11:50 am

2 stops15h 50m

Oslo Gardermoen

jue. 8/21

6:30 am-6:28 pm

2 stops18h 58m

$590

ChicagoOslo

ORD - TRF

ORDTRF

Chicago O'Hare Intl

lun. 9/8

7:15 pm-2:20 pm

1 stop12h 05m

Oslo Sandefjord

mié. 9/17

2:55 pm-4:10 pm

1 stop32h 15m

$598

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

vie. 10/17

9:40 pm-6:05 pm

1 stop13h 25m

Oslo Gardermoen

sáb. 10/25

6:35 am-8:11 pm

2 stops20h 36m

$601

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

mar. 5/13

12:00 pm-1:05 pm

2 stops18h 05m

Oslo Gardermoen

jue. 5/22

9:50 am-8:12 pm

2 stops17h 22m

$606

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

vie. 5/9

2:20 pm-11:55 pm

1 stop26h 35m

Oslo Gardermoen

dom. 5/18

5:40 am-12:10 pm

1 stop13h 30m

$607

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 53 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Oslo

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 $1,101). 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 abril 22, 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 abril 22, 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
7,920 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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 Icelandair, which is currently one of the cheapest options available, starting at $365. Lufthansa flights start at $496 while deals on TAP AIR PORTUGAL start at $503 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 $1,101). 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
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John F Kennedy Intl to Sandefjord flights
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Los Angeles to Oslo Gardermoen flights
Miami to Oslo Gardermoen flights
Boston to Oslo Gardermoen flights
Midway to Oslo Gardermoen flights
Baltimore to Oslo Gardermoen flights
Reagan-National to Oslo Gardermoen flights
Atlanta to Oslo Gardermoen flights
O'Hare Intl to Sandefjord flights
John F Kennedy Intl to Bergen flights
Newark to Bergen flights
Dulles Intl to Sandefjord flights
Hobby to Oslo Gardermoen flights
Boston to Sandefjord flights
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Seattle to Sandefjord flights
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Top 9 airlines flying from Illinois to Oslo

Discover the top 9 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 abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$401Average$649FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$444Average$787FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$503Average$690FlexibilityNo cancel feeOn-time70%
FinnairCheapest$520Average$676FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$532Average$663FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$533Average$821FlexibilityNo cancel feeOn-time76%
KLMCheapest$546Average$668FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$549Average$682FlexibilityNo cancel feeOn-time69%
DeltaCheapest$582Average$647FlexibilityNo cancel feeOn-timeN/A

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