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

Finnair, British Airways, and Icelandair 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 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.

$316 Cheap Flights from Oslo Gardermoen Airport to Illinois in 2026

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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.

1:50 pm - 9:25 pm

OSL

ORD

14h 35m

1 stop

10:25 pm - 12:35 pm

ORD

OSL

31h 10m

1 stop

$458Icelandair

Fri, Apr 10 - Sun, Apr 26

1:50 pm - 9:25 pm

OSL

ORD

14h 35m

1 stop

10:25 pm - 12:35 pm

ORD

OSL

31h 10m

1 stop

$470Icelandair

Fri, Apr 10 - Sun, Apr 26

9:20 am - 6:40 pm

OSL

MDW

16h 20m

2 stops

7:16 pm - 8:40 pm

MDW

OSL

18h 24m

2 stops

$541Delta

Sat, Apr 4 - Mon, Apr 20

8:00 am - 6:36 pm

OSL

MDW

17h 36m

2 stops

7:16 pm - 4:20 pm

MDW

OSL

14h 04m

2 stops

$563Delta

Tue, Apr 28 - Tue, May 5

6:35 am - 7:22 pm

OSL

STL

19h 47m

2 stops

3:30 pm - 9:05 am

STL

OSL

34h 35m

1 stop

$656United Airlines

Wed, Apr 1 - Sun, Apr 5

6:35 am - 11:11 pm

OSL

STL

23h 36m

2 stops

1:10 pm - 3:35 pm

STL

OSL

19h 25m

2 stops

$681Lufthansa

Wed, Apr 1 - Sun, Apr 5

6:55 am - 9:47 pm

OSL

STL

21h 52m

2 stops

11:15 am - 5:15 pm

STL

OSL

23h 00m

2 stops

$688United Airlines

Tue, Mar 31 - Sat, Apr 4

6:35 am - 7:22 pm

OSL

STL

19h 47m

2 stops

6:55 pm - 9:05 am

STL

OSL

31h 10m

2 stops

$697Lufthansa

Wed, Apr 1 - Sun, Apr 5

10:40 am - 1:25 pm

OSL

STL

33h 45m

3 stops

4:05 pm - 1:45 pm

STL

OSL

14h 40m

2 stops

$1,426Multiple Airlines

Tue, Mar 31 - Sat, Apr 4

1:50 pm - 3:25 pm

OSL

STL

32h 35m

3 stops

9:45 am - 3:50 pm

STL

OSL

23h 05m

3 stops

$2,037Multiple Airlines

Wed, Apr 1 - Sun, Apr 5

Icelandair flights from Oslo Gardermoen Airport to Illinois

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

Icelandair

Apr 10

OSL1:50 pmOslo Gardermoen

14h 35m

1 stop

ORD9:25 pmChicago O'Hare Intl

Apr 26

ORD10:25 pmChicago O'Hare Intl

31h 10m

1 stop

OSL12:35 pmOslo Gardermoen

$458

Icelandair

Apr 10

OSL1:50 pmOslo Gardermoen

14h 35m

1 stop

ORD9:25 pmChicago O'Hare Intl

Apr 26

ORD10:25 pmChicago O'Hare Intl

31h 10m

1 stop

OSL12:35 pmOslo Gardermoen

$470

Icelandair

Apr 10

OSL1:50 pmOslo Gardermoen

11h 25m

1 stop

ORD6:15 pmChicago O'Hare Intl

Apr 26

ORD10:25 pmChicago O'Hare Intl

31h 10m

1 stop

OSL12:35 pmOslo Gardermoen

$471

American Airlines flights from Oslo Gardermoen Airport to Illinois

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

American Airlines

Apr 29

OSL12:50 pmOslo Gardermoen

12h 00m

1 stop

ORD5:50 pmChicago O'Hare Intl

May 6

ORD11:22 amChicago O'Hare Intl

16h 23m

2 stops

OSL10:45 amOslo Gardermoen

$538

American Airlines

Apr 29

OSL12:50 pmOslo Gardermoen

12h 00m

1 stop

ORD5:50 pmChicago O'Hare Intl

May 6

ORD11:22 amChicago O'Hare Intl

16h 23m

2 stops

OSL10:45 amOslo Gardermoen

$542

American Airlines

Apr 13

OSL7:45 amOslo Gardermoen

16h 50m

1 stop

ORD5:35 pmChicago O'Hare Intl

May 7

ORD11:22 amChicago O'Hare Intl

16h 33m

2 stops

OSL10:55 amOslo Gardermoen

$550

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 - ORD

OSLORD

Oslo Gardermoen

Fri 4/10

1:50 pm-9:25 pm

1 stop14h 35m

Chicago O'Hare Intl

Sun 4/26

10:25 pm-12:35 pm

1 stop31h 10m

$458

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Fri 4/10

1:50 pm-9:25 pm

1 stop14h 35m

Chicago O'Hare Intl

Sun 4/26

10:25 pm-12:35 pm

1 stop31h 10m

$470

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Sat 4/4

9:20 am-6:40 pm

2 stops16h 20m

Chicago Midway

Mon 4/20

7:16 pm-8:40 pm

2 stops18h 24m

$541

Quickest round-trip

OsloChicago

OSL - MDW

OSLMDW

Oslo Gardermoen

Tue 4/28

8:00 am-6:36 pm

2 stops17h 36m

Chicago Midway

Tue 5/5

7:16 pm-4:20 pm

2 stops14h 04m

$563

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 4/1

6:35 am-7:22 pm

2 stops19h 47m

Lambert-St Louis

Sun 4/5

3:30 pm-9:05 am

1 stop34h 35m

$656

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 4/1

6:35 am-11:11 pm

2 stops23h 36m

Lambert-St Louis

Sun 4/5

1:10 pm-3:35 pm

2 stops19h 25m

$681

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Tue 3/31

6:55 am-9:47 pm

2 stops21h 52m

Lambert-St Louis

Sat 4/4

11:15 am-5:15 pm

2 stops23h 00m

$688

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 4/1

6:35 am-7:22 pm

2 stops19h 47m

Lambert-St Louis

Sun 4/5

6:55 pm-9:05 am

2 stops31h 10m

$697

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Tue 3/31

10:40 am-1:25 pm

3 stops33h 45m

Lambert-St Louis

Sat 4/4

4:05 pm-1:45 pm

2 stops14h 40m

$1,426

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 4/1

1:50 pm-3:25 pm

3 stops32h 35m

Lambert-St Louis

Sun 4/5

9:45 am-3:50 pm

3 stops23h 05m

$2,037

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 $454, 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 September is also cheap. Prices for this month can be found on momondo for an average of $470.

How far in advance should I book a flight 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 $584 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 $409 on momondo.

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

You could potentially save up to 6% 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

Fastest flight time	11h 25m
Direct flights	None

The fastest flight from Oslo Gardermoen Airport to Illinois takes 11h 25m

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

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 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.

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.