What is the cheapest airline that flies from Oslo Gardermoen to Illinois?

American Airlines, Icelandair, and TAP AIR PORTUGAL are the most popular carriers operating from Oslo Gardermoen to Illinois

When did momondo last update prices for flights from Oslo Gardermoen Airport to Illinois?

Prices for flights from Oslo Gardermoen Airport to Illinois were last updated today.

How many operators does momondo search for flights from Oslo Gardermoen Airport to Illinois?

As of August 2026, there is 1 operator available to choose from for flights from Oslo Gardermoen Airport to Illinois.

How old do you have to be to fly from Oslo Gardermoen Airport to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oslo Gardermoen Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$414 Cheap Flights from Oslo Gardermoen Airport to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Oslo Gardermoen Airport to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 4:45 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

15h 45m1 stop Kastrup Copenhagen

7:15 pm - 5:20 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

15h 05m1 stop Kastrup Copenhagen

$437Scandinavian Airlines

Thu, Dec 3 - Sun, Dec 6

1:10 pm - 5:20 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 10m1 stop Reykjavik Keflavik Intl

6:30 pm - 11:35 amORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 05m1 stop Reykjavik Keflavik Intl

$437Icelandair

Sat, Nov 21 - Sun, Nov 29

4:30 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

32h 45m1 stop Reykjavik Keflavik Intl

7:25 pm - 12:35 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 10m1 stop Reykjavik Keflavik Intl

$455Icelandair

Sat, Oct 3 - Mon, Oct 19

1:10 pm - 5:20 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 10m1 stop Reykjavik Keflavik Intl

6:30 pm - 11:35 amORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 05m1 stop Reykjavik Keflavik Intl

$467Icelandair

Sat, Jan 23 - Tue, Jan 26

1:10 pm - 5:20 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 10m1 stop Reykjavik Keflavik Intl

6:30 pm - 11:35 amORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 05m1 stop Reykjavik Keflavik Intl

$519Icelandair

Wed, Nov 4 - Thu, Nov 12

1:10 pm - 5:20 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 10m1 stop Reykjavik Keflavik Intl

6:30 pm - 11:35 amORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 05m1 stop Reykjavik Keflavik Intl

$519Icelandair

Thu, Nov 5 - Thu, Nov 12

5:05 pm - 12:30 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

26h 25m1 stop London Heathrow

8:50 pm - 11:40 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

19h 50m1 stop London Heathrow

$521Multiple Airlines

Mon, Oct 5 - Sun, Oct 18

7:45 am - 5:35 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

16h 50m1 stop London Heathrow

9:30 pm - 4:35 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

12h 05m1 stop Helsinki-Vantaa

$526Multiple Airlines

Mon, Oct 5 - Sun, Oct 18

1:50 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

10:25 pm - 3:25 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 00m1 stop Reykjavik Keflavik Intl

$530Icelandair

Tue, Sep 1 - Tue, Sep 8

8:00 am - 7:59 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

18h 59m2 stops Kastrup Copenhagen Boston Logan Intl

7:15 pm - 12:55 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 40m1 stop Kastrup Copenhagen

$569Scandinavian Airlines

Sat, Oct 3 - Mon, Oct 19

Cheap last minute flights

Enter your travel dates to find the best prices.

1:50 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

10:25 pm - 3:25 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 00m1 stop Reykjavik Keflavik Intl

$838Icelandair

Wed, Aug 19 - Sun, Aug 23

1:50 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

7:25 pm - 12:35 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 10m1 stop Reykjavik Keflavik Intl

$838Icelandair

Thu, Aug 20 - Sun, Aug 23

1:50 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

7:25 pm - 12:35 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 10m1 stop Reykjavik Keflavik Intl

$838Icelandair

Thu, Aug 20 - Mon, Aug 24

4:30 pm - 9:25 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 55m1 stop Reykjavik Keflavik Intl

7:25 pm - 12:35 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 10m1 stop Reykjavik Keflavik Intl

$838Icelandair

Wed, Aug 19 - Sat, Aug 22

1:50 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

10:25 pm - 3:25 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 00m1 stop Reykjavik Keflavik Intl

$838Icelandair

Fri, Aug 21 - Mon, Aug 24

1:50 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

7:25 pm - 12:35 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 10m1 stop Reykjavik Keflavik Intl

$838Icelandair

Wed, Aug 19 - Mon, Aug 24

1:50 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

7:25 pm - 12:35 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 10m1 stop Reykjavik Keflavik Intl

$838Icelandair

Thu, Aug 20 - Thu, Aug 27

1:50 pm - 6:15 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

10:25 pm - 3:25 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 00m1 stop Reykjavik Keflavik Intl

$838Icelandair

Fri, Aug 21 - Sun, Aug 23

7:55 am - 4:10 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

15h 15m1 stop Kastrup Copenhagen

7:15 pm - 12:55 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

10h 40m1 stop Kastrup Copenhagen

$932Scandinavian Airlines

Thu, Aug 20 - Tue, Aug 25

9:55 am - 4:10 pmOSL Oslo Gardermoen-ORD Chicago O'Hare Intl

13h 15m1 stop Kastrup Copenhagen

7:15 pm - 2:55 pmORD Chicago O'Hare Intl-OSL Oslo Gardermoen

12h 40m1 stop Kastrup Copenhagen

$932Scandinavian Airlines

Fri, Aug 21 - Tue, Aug 25

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Icelandair flights from Oslo Gardermoen Airport to Illinois

Our best Icelandair deals on Oslo Gardermoen Airport to Illinois flight tickets

Icelandair

Nov 21

OSL1:10 pmOslo Gardermoen

11h 10m

1 stop

ORD5:20 pmChicago O'Hare Intl

Nov 29

ORD6:30 pmChicago O'Hare Intl

10h 05m

1 stop

OSL11:35 amOslo Gardermoen

$437

Icelandair

Nov 21

OSL1:10 pmOslo Gardermoen

11h 10m

1 stop

ORD5:20 pmChicago O'Hare Intl

Nov 29

ORD6:30 pmChicago O'Hare Intl

10h 05m

1 stop

OSL11:35 amOslo Gardermoen

$438

Icelandair

Oct 3

OSL4:30 pmOslo Gardermoen

32h 45m

1 stop

ORD6:15 pmChicago O'Hare Intl

Oct 19

ORD7:25 pmChicago O'Hare Intl

10h 10m

1 stop

OSL12:35 pmOslo Gardermoen

$455

American Airlines flights from Oslo Gardermoen Airport to Illinois

Our best American Airlines deals on Oslo Gardermoen Airport to Illinois flight tickets

American Airlines

Oct 1

OSL11:40 amOslo Gardermoen

12h 35m

1 stop

ORD5:15 pmChicago O'Hare Intl

Oct 8

ORD5:00 pmChicago O'Hare Intl

23h 50m

1 stop

OSL11:50 pmOslo Gardermoen

$569

American Airlines

Oct 30

OSL7:10 amOslo Gardermoen

13h 35m

1 stop

ORD2:45 pmChicago O'Hare Intl

Nov 10

ORD10:31 amChicago O'Hare Intl

17h 24m

2 stops

OSL10:55 amOslo Gardermoen

$573

American Airlines

Nov 1

OSL12:30 pmOslo Gardermoen

17h 00m

2 stops

ORD10:30 pmChicago O'Hare Intl

Nov 8

ORD10:31 amChicago O'Hare Intl

17h 04m

2 stops

OSL10:35 amOslo Gardermoen

$574

momondo Fare Finder

Use the filters below to find and compare flights from Oslo Gardermoen Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Thu 12/3

8:00 am-4:45 pm

1 stop15h 45m

Chicago O'Hare Intl

Sun 12/6

7:15 pm-5:20 pm

1 stop15h 05m

$437

Quickest round-trip

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Sat 11/21

1:10 pm-5:20 pm

1 stop11h 10m

Chicago O'Hare Intl

Sun 11/29

6:30 pm-11:35 am

1 stop10h 05m

$437

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Sat 10/3

4:30 pm-6:15 pm

1 stop32h 45m

Chicago O'Hare Intl

Mon 10/19

7:25 pm-12:35 pm

1 stop10h 10m

$455

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Sat 1/23

1:10 pm-5:20 pm

1 stop11h 10m

Chicago O'Hare Intl

Tue 1/26

6:30 pm-11:35 am

1 stop10h 05m

$467

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Wed 11/4

1:10 pm-5:20 pm

1 stop11h 10m

Chicago O'Hare Intl

Thu 11/12

6:30 pm-11:35 am

1 stop10h 05m

$519

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Thu 11/5

1:10 pm-5:20 pm

1 stop11h 10m

Chicago O'Hare Intl

Thu 11/12

6:30 pm-11:35 am

1 stop10h 05m

$519

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Mon 10/5

5:05 pm-12:30 pm

1 stop26h 25m

Chicago O'Hare Intl

Sun 10/18

8:50 pm-11:40 pm

1 stop19h 50m

$521

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Mon 10/5

7:45 am-5:35 pm

1 stop16h 50m

Chicago O'Hare Intl

Sun 10/18

9:30 pm-4:35 pm

1 stop12h 05m

$526

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Tue 9/1

1:50 pm-6:15 pm

1 stop11h 25m

Chicago O'Hare Intl

Tue 9/8

10:25 pm-3:25 pm

1 stop10h 00m

$530

OsloChicago

OSL Oslo Gardermoen - ORD Chicago O'Hare Intl

OSLORD

Oslo Gardermoen

Sat 10/3

8:00 am-7:59 pm

2 stops18h 59m

Chicago O'Hare Intl

Mon 10/19

7:15 pm-12:55 pm

1 stop10h 40m

$569

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Oslo Gardermoen Airport to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Oslo Gardermoen Airport is in January. Flight prices, which tend to average around $477, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $478.

How far in advance should I book a flight from Oslo Gardermoen Airport to Illinois?

You are more likely to see cheaper flights to Illinois from Oslo Gardermoen Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $611 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Oslo Gardermoen Airport for as low as $407 on momondo.

Can stopping save me money on Oslo Gardermoen Airport to Illinois flights?

You could potentially save up to 31% on your flight if you consider stops on a Oslo Gardermoen Airport to Illinois flight.

Cheap Oslo Gardermoen Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oslo Gardermoen Airport to Illinois

Best Price Found	$447
Fastest flight time	11h 10m
Direct flights	None

The best one-way flight to Illinois from Oslo Gardermoen Airport in the past 72 hours is $447. The best round-trip flight deal from Oslo Gardermoen Airport to Illinois found on momondo in the last 72 hours is $437.

The fastest flight from Oslo Gardermoen Airport to Illinois takes 11h 10m

There are no direct flights from Oslo Gardermoen Airport to Illinois. There are no popular flight routes from Oslo Gardermoen Airport to Illinois.

Search flight deals

Frequently asked questions about flying from Oslo Gardermoen Airport to Illinois

When did momondo last update prices for flights from Oslo Gardermoen Airport to Illinois?
Prices for flights from Oslo Gardermoen Airport to Illinois were last updated today.
How many operators does momondo search for flights from Oslo Gardermoen Airport to Illinois?
As of August 2026, there is 1 operator available to choose from for flights from Oslo Gardermoen Airport to Illinois.
How old do you have to be to fly from Oslo Gardermoen Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oslo Gardermoen Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Oslo Gardermoen Airport to Illinois

Compare and see reviews for airlines that fly from Oslo Gardermoen Airport to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $614	Free Cancellation	Rating 7.4 1,949 reviews		Search Scandinavian Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Oslo to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Oslo to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Oslo to Illinois with flexible booking policies on momondo?

Flights from Oslo to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Oslo to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oslo to Illinois.

I’m not ready to book a flight from Oslo to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Oslo and alert you when they change.