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

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. 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?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oslo 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?

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 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?

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 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>

$208 CHEAP FLIGHTS from Illinois to Oslo

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

...and more

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

Cheapest round-trip

$368

Typical prices: $448-$579

Icelandair

Sat 2/14Sun 3/1

ORD - OSL • 1 stop

Cheapest one-way

$208

Typical prices: $472-$542

Icelandair

Tue 5/12

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!

Flight Deals

Cheap Flights from Illinois to Oslo

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

Sat, Feb 14 - Sun, Mar 1

6:30 pm - 11:35 am

ORD

OSL

10h 05m

1 stop

9:30 pm - 5:20 pm

OSL

ORD

26h 50m

1 stop

$368Icelandair

Wed, Mar 4 - Wed, Mar 11

6:30 pm - 11:35 am

ORD

OSL

10h 05m

1 stop

1:10 pm - 6:20 pm

OSL

ORD

11h 10m

1 stop

$391Icelandair

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

$398TAP AIR PORTUGAL

Sat, Apr 25 - Sat, May 2

6:15 pm - 12:00 pm

ORD

OSL

34h 45m

1 stop

1:00 pm - 4:00 pm

OSL

ORD

34h 00m

1 stop

$405TAP AIR PORTUGAL

Sun, May 3 - Wed, May 13

9:40 pm - 10:30 am

STL

OSL

29h 50m

1 stop

7:45 am - 7:30 pm

OSL

STL

18h 45m

1 stop

$515British Airways

Tue, May 5 - Wed, May 13

11:44 am - 4:25 pm

STL

OSL

21h 41m

2 stops

7:45 am - 10:14 pm

OSL

STL

21h 29m

2 stops

$518British Airways

Tue, May 5 - Wed, May 13

3:36 pm - 4:25 pm

STL

OSL

17h 49m

2 stops

12:50 pm - 10:14 pm

OSL

STL

16h 24m

2 stops

$521American Airlines

Wed, Apr 1 - Thu, Apr 30

6:20 am - 10:45 am

BMI

OSL

21h 25m

2 stops

12:50 pm - 11:49 pm

OSL

BMI

17h 59m

2 stops

$521American Airlines

Mon, Apr 27 - Mon, May 4

7:16 pm - 6:45 pm

MDW

OSL

16h 29m

2 stops

6:30 am - 5:58 pm

OSL

MDW

18h 28m

2 stops

$521Delta

Tue, May 5 - Tue, May 12

1:02 pm - 1:45 pm

STL

OSL

17h 43m

2 stops

6:30 am - 11:38 pm

OSL

STL

24h 08m

2 stops

$522Delta

Useful Info

Cheapest flight	$208

Flight from Chicago O'Hare Airport to Oslo Airport

How does KAYAK find such low prices on flights from Illinois to Oslo?
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.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Oslo?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oslo 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?
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 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?
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 from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Oslo

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Illinois

First Class flights to Oslo

Business Class flights to Oslo

Premium Economy Class flights to Oslo

Economy Class flights to Oslo

$208 Find Cheap Flights from Illinois to Oslo

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

Everything you should know

Cheap Flights from Illinois to Oslo

Recent round-trip flight deals from Illinois to Oslo

Recent one-way flight deals from Illinois to Oslo

Recent last minute flight deals from Illinois to Oslo

Good to know

FAQs for booking flights from Illinois to Oslo

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

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.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oslo 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?

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 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?

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 from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Oslo

Cabin class types available on flights to Illinois

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

Find direct flights for Oslo

Flights to other popular destinations

Flights from domestic origins to Oslo

Choose which airport to fly into in Oslo

Find deals for your return flight