How does KAYAK find such low prices on flights from Illinois to Oslo Airport?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Oslo Airport. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Oslo Airport?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oslo Airport from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Oslo Airport?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Oslo Airport with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Oslo Airport?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Oslo Airport from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$220 CHEAP FLIGHTS from Illinois to Oslo Airport (OSL)

OSL

KAYAK searches hundreds of travel sites at once for deals on flights to Oslo Gardermoen Airport

...and more

Travelers love KAYAK

41 299 237 searches in the past 7 days on KAYAK

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Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$366

Overall average: $539

Icelandair

Mon 2/23Sun 3/8

ORD - OSL • 1 stop

Cheapest one-way

$220

Typical prices: $472-$542

Icelandair

Sat 5/2

ORD - OSL • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Oslo Gardermoen!

Flight Deals

Cheap Flights from Illinois to Oslo Gardermoen

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Oslo Gardermoen that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Oslo Gardermoen

Mon, Feb 23 - Sun, Mar 8

6:30 pm - 11:35 am

ORD

OSL

10h 05m

1 stop

9:30 pm - 6:20 pm

OSL

ORD

26h 50m

1 stop

$366Icelandair

Fri, Apr 17 - Fri, Apr 24

7:25 pm - 12:35 pm

ORD

OSL

10h 10m

1 stop

1:50 pm - 9:25 pm

OSL

ORD

14h 35m

1 stop

$395Icelandair

Fri, Feb 6 - Sun, Feb 8

6:30 pm - 11:35 am

ORD

OSL

10h 05m

1 stop

9:30 pm - 5:20 pm

OSL

ORD

26h 50m

1 stop

$397Icelandair

Wed, Mar 4 - Tue, Mar 10

7:10 pm - 12:10 pm

ORD

OSL

34h 00m

1 stop

6:45 pm - 4:00 pm

OSL

ORD

27h 15m

1 stop

$418TAP AIR PORTUGAL

Mon, Apr 20 - Wed, Apr 29

8:53 am - 4:20 pm

STL

OSL

24h 27m

2 stops

8:30 pm - 10:14 pm

OSL

STL

32h 44m

2 stops

$452British Airways

Mon, Apr 20 - Wed, Apr 29

8:53 am - 4:20 pm

STL

OSL

24h 27m

2 stops

11:35 am - 7:30 pm

OSL

STL

14h 55m

1 stop

$460British Airways

Sun, Mar 1 - Tue, Mar 17

7:00 am - 12:30 am

STL

OSL

34h 30m

2 stops

6:25 am - 7:29 pm

OSL

STL

19h 04m

2 stops

$470Multiple Airlines

Sun, Mar 1 - Tue, Mar 17

11:46 am - 8:10 pm

STL

OSL

25h 24m

2 stops

6:25 am - 8:55 am

OSL

STL

32h 30m

2 stops

$471Multiple Airlines

Mon, Feb 9 - Fri, Feb 27

2:54 pm - 6:40 pm

STL

OSL

20h 46m

2 stops

7:10 am - 9:12 pm

OSL

STL

21h 02m

2 stops

$479American Airlines

Sat, Jul 4 - Tue, Jul 14

6:51 pm - 11:30 pm

MLI

OSL

21h 39m

2 stops

7:45 am - 9:57 pm

OSL

MLI

21h 12m

2 stops

$827American Airlines

Useful Info

Low season	November
High season	June
Cheapest flight	$220

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 37% increase in price.

Flight from Chicago O'Hare Airport to Oslo Airport

How does KAYAK find such low prices on flights from Illinois to Oslo Airport?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Oslo Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Oslo Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oslo Airport from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Oslo Airport?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Oslo Airport with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Oslo Airport?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Oslo Airport from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Gardermoen

Lillehammer

Drammen

Fredrikstad

Everything you need to know for your flight to Oslo Gardermoen

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Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Oslo Airport (OSL)

OSL

$220 Find Cheap Flights from Illinois to Oslo Airport

KAYAK searches hundreds of travel sites at once for deals on flights to Oslo Gardermoen Airport

Everything you should know

Cheap Flights from Illinois to Oslo Gardermoen

Recent round-trip flight deals from Illinois to Oslo Gardermoen

Recent one-way flight deals from Illinois to Oslo Gardermoen

Recent last minute flight deals from Illinois to Oslo Gardermoen

Good to know

FAQs for booking Illinois to Oslo Airport flights

How does KAYAK find such low prices on flights from Illinois to Oslo Airport?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Oslo Airport.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Oslo Airport?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oslo Airport from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Oslo Airport?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Oslo Airport with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Oslo Airport?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Oslo Airport from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Oslo Gardermoen?

Everything you need to know for your flight to Oslo Gardermoen

Information on your arrival and departure airports

Cabin class types available on flights to Oslo Gardermoen

Complete your trip to Oslo Gardermoen with a hotel stay or car rental

Find direct flights for Oslo Gardermoen

Flights to other popular destinations

Flights from domestic origins to Illinois

Choose which airport to fly into in Oslo

Find deals for your return flight