What airlines fly to Oslo?

Icelandair, Scandinavian Airlines and United Airlines are the top three most popular airlines that fly to Oslo from Illinois according to our data. Icelandair is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 9 different airlines that fly to Oslo on a routine basis, so you have a few additional options to choose from.

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

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

How long does it take to fly to Oslo?

Flight times vary depending on what airport in Illinois you fly out of and what airport in Oslo you fly into. For example, flying from Chicago to Oslo Gardermoen Airport takes 12h 02m on average. On the other hand, flying from Peoria to Oslo Gardermoen Airport takes 18h 27m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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

Prices for flights from Illinois to Oslo refresh daily.

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

As of August 2025, there are 10 operators available to choose from for flights from Illinois to Oslo.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Oslo.

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

The travel and health documents required for your trip to Oslo can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oslo. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$254 Cheap Flights from Illinois to Oslo in 2025

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Find the cheapest flights from Illinois to Oslo

Round-trip

One-way

Last minute

Cheap round-trip flights

7:20 pm - 7:15 pmORD-OSL

16h 55m1 stop

5:10 pm - 4:45 pmOSL-ORD

30h 35m1 stop

$376Scandinavian Airlines

Find Deal

Thu, Nov 6 - Wed, Nov 12

7:20 pm - 7:15 pmORD-OSL

16h 55m1 stop

12:10 pm - 4:45 pmOSL-ORD

11h 35m1 stop

$387Scandinavian Airlines

Find Deal

Thu, Nov 6 - Wed, Nov 12

6:30 pm - 11:35 amORD-OSL

10h 05m1 stop

1:05 pm - 5:20 pmOSL-ORD

11h 15m1 stop

$391Icelandair

Find Deal

Thu, Nov 13 - Sun, Nov 16

6:30 pm - 11:35 amORD-OSL

10h 05m1 stop

1:05 pm - 5:20 pmOSL-ORD

11h 15m1 stop

$392Icelandair

Find Deal

Thu, Nov 13 - Sun, Nov 16

6:30 pm - 11:35 amORD-OSL

10h 05m1 stop

1:05 pm - 5:20 pmOSL-ORD

11h 15m1 stop

$393Icelandair

Find Deal

Fri, Nov 7 - Sun, Nov 9

11:48 am - 10:55 amORD-OSL

16h 07m2 stops

7:20 am - 3:25 pmOSL-ORD

15h 05m1 stop

$475British Airways

Find Deal

Tue, Nov 4 - Tue, Nov 18

4:05 pm - 2:10 pmORD-OSL

15h 05m2 stops

7:20 am - 5:38 pmOSL-ORD

17h 18m2 stops

$491British Airways

Find Deal

Tue, Nov 4 - Tue, Nov 18

10:40 am - 2:10 pmORD-OSL

20h 30m2 stops

5:40 am - 3:55 pmOSL-ORD

17h 15m1 stop

$497

Find Deal

Wed, Sep 3 - Wed, Sep 10

7:05 pm - 1:05 pmORD-OSL

35h 00m1 stop

6:35 am - 8:11 pmOSL-ORD

20h 36m2 stops

$509

Find Deal

Sun, Sep 14 - Mon, Sep 22

4:20 pm - 2:10 pmORD-OSL

14h 50m1 stop

2:55 pm - 1:20 pmOSL-ORD

29h 25m1 stop

$518Austrian Airlines

Find Deal

Mon, Sep 29 - Wed, Oct 8

Icelandair flights from Illinois to Oslo

Our best Icelandair deals on Illinois to Oslo flight tickets

Icelandair

Nov 13

ORD6:30 pmChicago O'Hare Intl

10h 05m

1 stop

OSL11:35 amOslo Gardermoen

Nov 16

OSL1:05 pmOslo Gardermoen

11h 15m

1 stop

ORD5:20 pmChicago O'Hare Intl

$391

Find similar

Icelandair

Nov 13

ORD6:30 pmChicago O'Hare Intl

10h 05m

1 stop

OSL11:35 amOslo Gardermoen

Nov 16

OSL1:05 pmOslo Gardermoen

11h 15m

1 stop

ORD5:20 pmChicago O'Hare Intl

$392

Find similar

Icelandair

Nov 7

ORD6:30 pmChicago O'Hare Intl

10h 05m

1 stop

OSL11:35 amOslo Gardermoen

Nov 9

OSL1:05 pmOslo Gardermoen

11h 15m

1 stop

ORD5:20 pmChicago O'Hare Intl

$393

Find similar

United Airlines flights from Illinois to Oslo

Our best United Airlines deals on Illinois to Oslo flight tickets

United Airlines

Aug 24

ORD3:35 pmChicago O'Hare Intl

12h 15m

1 stop

OSL10:50 amOslo Gardermoen

Sep 6

OSL6:35 amOslo Gardermoen

15h 20m

1 stop

ORD2:55 pmChicago O'Hare Intl

$534

Find similar

United Airlines

Aug 21

ORD6:25 pmChicago O'Hare Intl

22h 25m

1 stop

OSL11:50 pmOslo Gardermoen

Aug 30

OSL1:00 pmOslo Gardermoen

13h 55m

1 stop

ORD7:55 pmChicago O'Hare Intl

$563

Find similar

United Airlines

Aug 24

ORD3:35 pmChicago O'Hare Intl

12h 15m

1 stop

OSL10:50 amOslo Gardermoen

Sep 5

OSL6:35 amOslo Gardermoen

20h 13m

2 stops

ORD7:48 pmChicago O'Hare Intl

$569

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Thu 11/6

7:20 pm-7:15 pm

1 stop16h 55m

Oslo Gardermoen

Wed 11/12

5:10 pm-4:45 pm

1 stop30h 35m

$376

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Thu 11/6

7:20 pm-7:15 pm

1 stop16h 55m

Oslo Gardermoen

Wed 11/12

12:10 pm-4:45 pm

1 stop11h 35m

$387

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Thu 11/13

6:30 pm-11:35 am

1 stop10h 05m

Oslo Gardermoen

Sun 11/16

1:05 pm-5:20 pm

1 stop11h 15m

$391

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Thu 11/13

6:30 pm-11:35 am

1 stop10h 05m

Oslo Gardermoen

Sun 11/16

1:05 pm-5:20 pm

1 stop11h 15m

$392

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Fri 11/7

6:30 pm-11:35 am

1 stop10h 05m

Oslo Gardermoen

Sun 11/9

1:05 pm-5:20 pm

1 stop11h 15m

$393

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 11/4

11:48 am-10:55 am

2 stops16h 07m

Oslo Gardermoen

Tue 11/18

7:20 am-3:25 pm

1 stop15h 05m

$475

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 11/4

4:05 pm-2:10 pm

2 stops15h 05m

Oslo Gardermoen

Tue 11/18

7:20 am-5:38 pm

2 stops17h 18m

$491

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Wed 9/3

10:40 am-2:10 pm

2 stops20h 30m

Oslo Gardermoen

Wed 9/10

5:40 am-3:55 pm

1 stop17h 15m

$497

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Sun 9/14

7:05 pm-1:05 pm

1 stop35h 00m

Oslo Gardermoen

Mon 9/22

6:35 am-8:11 pm

2 stops20h 36m

$509

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 9/29

4:20 pm-2:10 pm

1 stop14h 50m

Oslo Gardermoen

Wed 10/8

2:55 pm-1:20 pm

1 stop29h 25m

$518

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 Illinois to Oslo

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

Other information

What is the cheapest month to fly to Oslo?

The month of November is, on average, the cheapest month to fly to Oslo from Illinois, with most prices found around $507. If you’re not able to fly to Oslo in November, then October is your next best option. Flight prices from Illinois to Oslo during October average around $530.

What is the cheapest day to depart on your flight to Oslo?

The cheapest day to depart on your flight to Oslo is on a Sunday when prices can be found for as low as $668. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Oslo for around $755.

What is the cheapest time of day to depart on your flight to Oslo?

Flying to Oslo from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $587 when looking at flights departing at noon. Try not to purchase tickets in the morning because they tend to be around $730. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Oslo?

You are more likely to see cheaper flights to Oslo from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo for around $640 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo from Illinois for as low as $579 on momondo.

Cheap Illinois to Oslo flight deals and tips

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

Best Price Found	$254
Fastest flight time	10h 05m
Direct flights	None
Airports in Oslo	2 airports

The best one-way flight to Oslo from Illinois in the past 72 hours is $254. The best round-trip flight deal from Illinois to Oslo found on momondo in the last 72 hours is $376.

The fastest flight from Illinois to Oslo takes 10h 05m

There are no direct flights from Illinois to Oslo. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - Oslo Gardermoen Airport, Chicago Midway Airport - Oslo Gardermoen Airport and Chicago O'Hare Intl Airport - Oslo Sandefjord Airport.

There are 2 airports near Oslo: Oslo Gardermoen (OSL), Oslo Sandefjord (TRF)

Search flight deals

When did momondo last update prices for flights from Illinois to Oslo?
Prices for flights from Illinois to Oslo refresh daily.
How many operators does momondo search for flights from Illinois to Oslo?
As of August 2025, there are 10 operators available to choose from for flights from Illinois to Oslo.
How old do you have to be to fly from Illinois to Oslo?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Oslo.
What documentation or ID do you need to fly to Oslo?
The travel and health documents required for your trip to Oslo can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oslo. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Illinois to Oslo

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

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $408	Free Cancellation	Rating 7.0 526 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $432	Free Cancellation	Rating 7.4 1,468 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $515	Free Cancellation	Rating 6.8 7,317 reviews	Search Lufthansa flights
American Airlines	PriceFrom $532	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
British Airways	PriceFrom $540	Free Cancellation	Rating 6.6 7,266 reviews	Search British Airways flights
KLM	PriceFrom $550	Free Cancellation	Rating 7.8 1,381 reviews	Search KLM flights
United Airlines	PriceFrom $550	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
Finnair	PriceFrom $552	Free Cancellation	Rating 7.6 1,321 reviews	Search Finnair flights
Delta	PriceFrom $562	Free Cancellation	Rating 8.0 7,980 reviews	Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oslo from Illinois.

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

Yes. momondo allows you to filter the results for Illinois to Oslo flights to just show those with flexible booking policies.

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

Once all potential Illinois to Oslo flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Illinois to Oslo flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.