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

Finnair, American Airlines, and British Airways 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 May 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.

$373 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

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

$559Icelandair

Tue, Jun 2 - Sun, Jun 7

4:30 pm - 6:15 pm

OSL

ORD

32h 45m

1 stop

10:25 pm - 12:35 pm

ORD

OSL

31h 10m

1 stop

$572Icelandair

Mon, Jun 1 - Tue, Jun 16

7:20 am - 11:53 pm

OSL

ORD

22h 33m

2 stops

9:40 pm - 11:35 pm

ORD

OSL

19h 55m

1 stop

$606American Airlines

Mon, Oct 26 - Thu, Oct 29

7:45 am - 3:00 pm

OSL

ORD

14h 15m

1 stop

8:50 pm - 11:20 pm

ORD

OSL

19h 30m

1 stop

$611Multiple Airlines

Mon, Jun 1 - Tue, Jun 16

7:20 am - 11:53 pm

OSL

ORD

22h 33m

2 stops

9:40 pm - 10:30 am

ORD

OSL

30h 50m

1 stop

$613American Airlines

Mon, Oct 26 - Thu, Oct 29

6:35 am - 8:25 pm

OSL

STL

20h 50m

2 stops

2:15 pm - 5:15 pm

STL

OSL

20h 00m

2 stops

$641Air Canada

Wed, Jun 3 - Sun, Jun 7

6:25 am - 8:25 pm

OSL

STL

21h 00m

2 stops

2:15 pm - 12:15 pm

STL

OSL

15h 00m

2 stops

$664Air Canada

Fri, Jun 5 - Tue, Jun 9

6:35 am - 1:25 pm

OSL

STL

13h 50m

1 stop

1:05 pm - 3:15 pm

STL

OSL

19h 10m

2 stops

$694Multiple Airlines

Wed, Jun 3 - Sun, Jun 7

6:35 am - 1:25 pm

OSL

STL

13h 50m

1 stop

3:30 pm - 12:05 am

STL

OSL

25h 35m

1 stop

$733Lufthansa

Wed, Jun 3 - Sun, Jun 7

6:25 am - 1:25 pm

OSL

STL

14h 00m

1 stop

3:30 pm - 12:15 pm

STL

OSL

13h 45m

1 stop

$736Lufthansa

Fri, Jun 5 - Tue, Jun 9

Icelandair flights from Oslo Gardermoen Airport to Illinois

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

Icelandair

Jun 2

OSL1:50 pmOslo Gardermoen

14h 35m

1 stop

ORD9:25 pmChicago O'Hare Intl

Jun 7

ORD10:25 pmChicago O'Hare Intl

31h 10m

1 stop

OSL12:35 pmOslo Gardermoen

$559

Icelandair

Jun 1

OSL4:30 pmOslo Gardermoen

32h 45m

1 stop

ORD6:15 pmChicago O'Hare Intl

Jun 16

ORD10:25 pmChicago O'Hare Intl

31h 10m

1 stop

OSL12:35 pmOslo Gardermoen

$572

Icelandair

Sep 9

OSL4:30 pmOslo Gardermoen

11h 55m

1 stop

ORD9:25 pmChicago O'Hare Intl

Sep 13

ORD7:25 pmChicago O'Hare Intl

10h 10m

1 stop

OSL12:35 pmOslo Gardermoen

$579

Lufthansa flights from Oslo Gardermoen Airport to Illinois

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

Lufthansa

Jul 7

OSL7:00 pmOslo Gardermoen

23h 00m

1 stop

ORD11:00 amChicago O'Hare Intl

Jul 14

ORD9:40 pmChicago O'Hare Intl

17h 25m

1 stop

OSL10:05 pmOslo Gardermoen

$663

Lufthansa

Jul 8

OSL7:00 pmOslo Gardermoen

23h 00m

1 stop

ORD11:00 amChicago O'Hare Intl

Jul 22

ORD9:40 pmChicago O'Hare Intl

17h 25m

1 stop

OSL10:05 pmOslo Gardermoen

$697

Lufthansa

Jun 3

OSL6:35 amOslo Gardermoen

13h 50m

1 stop

STL1:25 pmLambert-St Louis

Jun 7

STL3:30 pmLambert-St Louis

25h 35m

1 stop

OSL12:05 amOslo Gardermoen

$733

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

Tue 6/2

1:50 pm-9:25 pm

1 stop14h 35m

Chicago O'Hare Intl

Sun 6/7

10:25 pm-12:35 pm

1 stop31h 10m

$559

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 6/1

4:30 pm-6:15 pm

1 stop32h 45m

Chicago O'Hare Intl

Tue 6/16

10:25 pm-12:35 pm

1 stop31h 10m

$572

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 10/26

7:20 am-11:53 pm

2 stops22h 33m

Chicago O'Hare Intl

Thu 10/29

9:40 pm-11:35 pm

1 stop19h 55m

$606

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 6/1

7:45 am-3:00 pm

1 stop14h 15m

Chicago O'Hare Intl

Tue 6/16

8:50 pm-11:20 pm

1 stop19h 30m

$611

OsloChicago

OSL - ORD

OSLORD

Oslo Gardermoen

Mon 10/26

7:20 am-11:53 pm

2 stops22h 33m

Chicago O'Hare Intl

Thu 10/29

9:40 pm-10:30 am

1 stop30h 50m

$613

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 6/3

6:35 am-8:25 pm

2 stops20h 50m

Lambert-St Louis

Sun 6/7

2:15 pm-5:15 pm

2 stops20h 00m

$641

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Fri 6/5

6:25 am-8:25 pm

2 stops21h 00m

Lambert-St Louis

Tue 6/9

2:15 pm-12:15 pm

2 stops15h 00m

$664

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 6/3

6:35 am-1:25 pm

1 stop13h 50m

Lambert-St Louis

Sun 6/7

1:05 pm-3:15 pm

2 stops19h 10m

$694

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 6/3

6:35 am-1:25 pm

1 stop13h 50m

Lambert-St Louis

Sun 6/7

3:30 pm-12:05 am

1 stop25h 35m

$733

Quickest round-trip

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Fri 6/5

6:25 am-1:25 pm

1 stop14h 00m

Lambert-St Louis

Tue 6/9

3:30 pm-12:15 pm

1 stop13h 45m

$736

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 February. Flight prices, which tend to average around $304, 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 February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $306.

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 $582 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 $359 on momondo.

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

You could potentially save up to 40% 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 10m
Direct flights	None

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 May 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 1,783 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.