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$353+ Cheap flights from Oslo to Illinois

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — ORD
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Oslo to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Oslo (OS1) to Illinois (USIL). 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 November 20, 2024.

Find flight deals from Oslo to Illinois

Cheapest flights from Oslo to Illinois
Explore the most affordable flight options available from Oslo to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This lastminute.com deal was found by Cheapflights users on 11/19. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/263:00 pmOSL - ORD
1 stop30h 30mMultiple Airlines
Wed 1/810:00 pmORD - OSL
1 stop17h 40mMultiple Airlines
Deal found 11/19$442
This Flightnetwork deal was found by Cheapflights users on 11/19. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/273:00 pmOSL - ORD
1 stop30h 30mIberia
Sun 12/14:45 pmORD - OSL
1 stop14h 35mIberia
Deal found 11/19$450
This Lufthansa deal was found by Cheapflights users on 11/20. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/266:30 amOSL - ORD
1 stop13h 55mLufthansa
Wed 1/89:25 pmORD - OSL
1 stop19h 05mLufthansa
Deal found 11/20$468
This Gotogate deal was found by Cheapflights users on 11/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/276:20 amOSL - ORD
2 stops15h 25mAir Canada
Sun 12/17:20 amORD - OSL
2 stops22h 25mAir Canada
Deal found 11/19$569
This Delta deal was found by Cheapflights users on 11/20. 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.
Wed 11/276:30 amOSL - ORD
2 stops17h 39mDelta
Sun 12/14:25 pmORD - OSL
1 stop16h 50mDelta
Deal found 11/20$572
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/267:00 amOSL - ORD
2 stops22h 05mAmerican Airlines
Wed 1/810:00 pmORD - OSL
1 stop17h 40mAmerican Airlines
Deal found 11/19$577
This Air Canada deal was found by Cheapflights users on 11/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:20 amOSL - STL
2 stops39h 46mMultiple Airlines
Tue 12/243:50 pmSTL - OSL
2 stops16h 05mMultiple Airlines
Deal found 11/19$578
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/86:20 amOSL - STL
1 stop14h 35mUnited Airlines
Tue 12/241:05 pmSTL - OSL
2 stops18h 50mUnited Airlines
Deal found 11/19$582
This British Airways deal was found by Cheapflights users on 11/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/87:15 amOSL - STL
2 stops21h 38mBritish Airways
Mon 12/236:23 pmSTL - OSL
2 stops17h 12mBritish Airways
Deal found 11/19$678
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:50 amOSL - STL
2 stops22h 15mAmerican Airlines
Wed 12/2512:41 pmSTL - OSL
2 stops18h 34mAmerican Airlines
Deal found 11/19$686
This Travelis deal was found by Cheapflights users on 11/19. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2810:00 amOSL - ORD
1 stop12h 50mScandinavian Airlines
Fri 1/37:10 pmORD - OSL
1 stop10h 00mScandinavian Airlines
Deal found 11/19$727
This Mytrip deal was found by Cheapflights users on 11/20. 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.
Thu 12/269:05 amTRF - ORD
2 stops15h 50mMultiple Airlines
Wed 1/89:00 pmORD - TRF
2 stops31h 50mMultiple Airlines
Deal found 11/20$799

Find flights from Oslo to Illinois within your budget

Customize your flight search to find flights from Oslo to Illinois 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

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Route

Depart

Return

Price

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Tue 1/14

7:25 pm-5:38 pm

2 stops29h 13m

Chicago O'Hare Intl

Wed 1/22

4:22 pm-2:15 pm

2 stops14h 53m

$399

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Fri 1/10

11:30 am-3:50 pm

1 stop11h 20m

Chicago O'Hare Intl

Thu 1/23

7:10 pm-1:05 pm

1 stop10h 55m

$411

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Tue 1/14

9:20 am-6:14 pm

2 stops15h 54m

Chicago Midway

Wed 1/22

2:08 pm-11:55 am

2 stops14h 47m

$427

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Tue 1/14

9:20 am-8:53 pm

2 stops18h 33m

Chicago O'Hare Intl

Wed 1/22

2:35 pm-1:50 pm

2 stops16h 15m

$429

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Tue 1/14

6:30 am-6:14 pm

2 stops18h 44m

Chicago Midway

Wed 1/22

2:08 pm-1:50 pm

2 stops16h 42m

$429

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Fri 1/10

3:00 pm-5:28 pm

2 stops33h 28m

Chicago O'Hare Intl

Thu 1/23

12:30 pm-10:55 am

2 stops15h 25m

$434

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 12/26

3:00 pm-2:30 pm

1 stop30h 30m

Chicago O'Hare Intl

Wed 1/8

10:00 pm-10:40 pm

1 stop17h 40m

$442

OsloChicago

TRF - ORD

TRFORD

Oslo Sandefjord

Fri 1/10

1:00 pm-3:50 pm

1 stop33h 50m

Chicago O'Hare Intl

Thu 1/23

7:10 pm-12:35 pm

1 stop10h 25m

$448

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 12/26

3:00 pm-2:30 pm

1 stop30h 30m

Chicago O'Hare Intl

Wed 1/8

6:35 pm-10:40 pm

1 stop21h 05m

$452

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Thu 12/26

6:30 am-1:25 pm

1 stop13h 55m

Chicago O'Hare Intl

Wed 1/8

9:25 pm-11:30 pm

1 stop19h 05m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 35 results
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Best time to book a flight from Oslo to Illinois

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

Travel insights for flights from Oslo to Illinois

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

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

Currently, September is the cheapest month in which you can book a flight from Oslo to Illinois (average of $232). Flying from Oslo to Illinois in June is currently the most expensive (average of $308). 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 OSL to IL?

Find hourly flight availability from Oslo to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

When flying from Oslo to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 20, 2024.
Get a feel of what it's like to fly with British Airways, Iberia and LOT from Oslo to Illinois by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LOT
7.6
Good
1,165 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,523 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Oslo to Illinois. 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 Oslo to Illinois one-way?

    One-way options have recently been found by users for as low as $406 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $419 and Scandinavian Airlines from $434 one-way.

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

    While some choose either Oslo Gardermoen - Chicago Midway or Oslo Sandefjord - Chicago O'Hare Intl, Oslo Gardermoen - Chicago O'Hare Intl is the most popular route from Oslo to Illinois.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Oslo to Illinois (average of $232). Flying from Oslo to Illinois in June is currently the most expensive (average of $308). 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 Oslo to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Oslo Gardermoen to Newark flights
Oslo Gardermoen to John F Kennedy Intl flights
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Sandefjord to John F Kennedy Intl flights
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Top 3 airlines flying from Oslo to Illinois

Discover the top 3 airlines that operate flights from Oslo to Illinois. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$377Average$561FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$417Average$513FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$429Average$542FlexibilityNo cancel feeOn-time69%
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