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Cheap flights from Illinois to Oslo from $241

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Oslo departing on 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
7:25 pm - 3:25 pm
ORD
-
OSL
13h 00m
1 stop
Icelandair Logo
4:30 pm - 9:25 pm
OSL
-
ORD
11h 55m
1 stop
$504Icelandair
Mon, Aug 10 - Mon, Aug 24
Scandinavian Airlines Logo
7:15 pm - 1:10 pm
ORD
-
OSL
10h 55m
1 stop
Scandinavian Airlines Logo
9:05 pm - 4:45 pm
OSL
-
ORD
26h 40m
1 stop
$506Scandinavian Airlines
Tue, Dec 1 - Sun, Dec 6
Icelandair Logo
7:25 pm - 12:35 pm
ORD
-
OSL
10h 10m
1 stop
Icelandair Logo
4:30 pm - 6:15 pm
OSL
-
ORD
32h 45m
1 stop
$509Icelandair
Mon, Aug 10 - Mon, Aug 24
Delta Logo
1:51 pm - 11:50 am
MDW
-
OSL
14h 59m
2 stops
Delta Logo
6:30 am - 6:01 pm
OSL
-
MDW
18h 31m
2 stops
$746Delta
Wed, Aug 19 - Wed, Aug 26
Delta Logo
6:42 pm - 4:20 pm
MDW
-
OSL
14h 38m
2 stops
Delta Logo
6:30 am - 6:33 pm
OSL
-
MDW
19h 03m
2 stops
$750Delta
Wed, Aug 12 - Thu, Aug 20
United Airlines Logo
12:59 pm - 5:55 pm
STL
-
OSL
21h 56m
2 stops
United Airlines Logo
6:35 am - 1:25 pm
OSL
-
STL
13h 50m
1 stop
$809United Airlines
Sun, Aug 16 - Wed, Aug 26
Air Canada Logo
12:10 pm - 5:55 pm
STL
-
OSL
22h 45m
2 stops
Air Canada Logo
6:35 am - 6:42 pm
OSL
-
STL
43h 07m
2 stops
$810Air Canada
Mon, Aug 17 - Wed, Aug 26
United Airlines Logo
8:50 am - 2:50 pm
STL
-
OSL
23h 00m
2 stops
United Airlines Logo
6:35 am - 6:42 pm
OSL
-
STL
19h 07m
2 stops
$812United Airlines
Sun, Aug 16 - Wed, Aug 26
Lufthansa Logo
6:54 pm - 6:25 pm
STL
-
OSL
40h 31m
2 stops
Lufthansa Logo
6:35 am - 1:25 pm
OSL
-
STL
13h 50m
1 stop
$836Lufthansa
Sat, Aug 15 - Wed, Aug 26
Lufthansa Logo
6:54 pm - 6:25 pm
STL
-
OSL
40h 31m
2 stops
Lufthansa Logo
6:35 am - 10:59 pm
OSL
-
STL
23h 24m
2 stops
$841Lufthansa
Sat, Aug 15 - Wed, Aug 26

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Icelandair flights from Illinois to Oslo Gardermoen Airport

Our best Icelandair deals on Illinois to Oslo Gardermoen Airport flight tickets
Icelandair
Aug 10
ORD7:25 pmChicago O'Hare Intl
13h 00m
1 stop
OSL3:25 pmOslo Gardermoen
Aug 24
OSL4:30 pmOslo Gardermoen
11h 55m
1 stop
ORD9:25 pmChicago O'Hare Intl
$504
Icelandair
Aug 10
ORD7:25 pmChicago O'Hare Intl
10h 10m
1 stop
OSL12:35 pmOslo Gardermoen
Aug 24
OSL4:30 pmOslo Gardermoen
32h 45m
1 stop
ORD6:15 pmChicago O'Hare Intl
$509
Icelandair
Nov 30
ORD6:30 pmChicago O'Hare Intl
10h 05m
1 stop
OSL11:35 amOslo Gardermoen
Dec 7
OSL1:10 pmOslo Gardermoen
11h 10m
1 stop
ORD5:20 pmChicago O'Hare Intl
$517

Scandinavian Airlines flights from Illinois to Oslo Gardermoen Airport

Our best Scandinavian Airlines deals on Illinois to Oslo Gardermoen Airport flight tickets
Scandinavian Airlines
Dec 1
ORD7:15 pmChicago O'Hare Intl
10h 55m
1 stop
OSL1:10 pmOslo Gardermoen
Dec 6
OSL9:05 pmOslo Gardermoen
26h 40m
1 stop
ORD4:45 pmChicago O'Hare Intl
$506
Scandinavian Airlines
Nov 30
ORD7:15 pmChicago O'Hare Intl
10h 55m
1 stop
OSL1:10 pmOslo Gardermoen
Dec 5
OSL8:00 amOslo Gardermoen
15h 45m
1 stop
ORD4:45 pmChicago O'Hare Intl
$518
Scandinavian Airlines
Nov 15
ORD7:15 pmChicago O'Hare Intl
12h 00m
1 stop
OSL2:15 pmOslo Gardermoen
Nov 30
OSL9:05 pmOslo Gardermoen
26h 40m
1 stop
ORD4:45 pmChicago O'Hare Intl
$538

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Oslo Gardermoen Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 3, 2026.
Use the filters below to find and compare flights from Illinois to Oslo Gardermoen Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 8/10

7:25 pm-3:25 pm

1 stop13h 00m

Oslo Gardermoen

Mon 8/24

4:30 pm-9:25 pm

1 stop11h 55m

$504

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Tue 12/1

7:15 pm-1:10 pm

1 stop10h 55m

Oslo Gardermoen

Sun 12/6

9:05 pm-4:45 pm

1 stop26h 40m

$506

ChicagoOslo

ORD - OSL

ORDOSL

Chicago O'Hare Intl

Mon 8/10

7:25 pm-12:35 pm

1 stop10h 10m

Oslo Gardermoen

Mon 8/24

4:30 pm-6:15 pm

1 stop32h 45m

$509

ChicagoOslo

MDW - OSL

MDWOSL

Chicago Midway

Wed 8/19

1:51 pm-11:50 am

2 stops14h 59m

Oslo Gardermoen

Wed 8/26

6:30 am-6:01 pm

2 stops18h 31m

$746

ChicagoOslo

MDW - OSL

MDWOSL

Chicago Midway

Wed 8/12

6:42 pm-4:20 pm

2 stops14h 38m

Oslo Gardermoen

Thu 8/20

6:30 am-6:33 pm

2 stops19h 03m

$750

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/16

12:59 pm-5:55 pm

2 stops21h 56m

Oslo Gardermoen

Wed 8/26

6:35 am-1:25 pm

1 stop13h 50m

$809

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 8/17

12:10 pm-5:55 pm

2 stops22h 45m

Oslo Gardermoen

Wed 8/26

6:35 am-6:42 pm

2 stops43h 07m

$810

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/16

8:50 am-2:50 pm

2 stops23h 00m

Oslo Gardermoen

Wed 8/26

6:35 am-6:42 pm

2 stops19h 07m

$812

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 8/15

6:54 pm-6:25 pm

2 stops40h 31m

Oslo Gardermoen

Wed 8/26

6:35 am-1:25 pm

1 stop13h 50m

$836

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 8/15

6:54 pm-6:25 pm

2 stops40h 31m

Oslo Gardermoen

Wed 8/26

6:35 am-10:59 pm

2 stops23h 24m

$841

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Oslo from

How to get the cheapest flight ticket from Illinois to Oslo Gardermoen Airport

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

What is the cheapest month to fly to Oslo Gardermoen Airport?

The cheapest month to fly to Oslo Gardermoen Airport from Illinois is in September. Flight prices, which tend to average around $225, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Oslo Gardermoen Airport from Illinois during March instead. Flights to Oslo Gardermoen Airport in March, while not as cheap as those in September, still average around $236.

How far in advance should I book a flight from Illinois to Oslo Gardermoen Airport?

You are more likely to see cheaper flights to Oslo Gardermoen Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo Gardermoen Airport for around $612 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo Gardermoen Airport from Illinois for as low as $558 on momondo.

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

You could potentially save up to 65% on your flight if you consider stops on a Illinois to Oslo Gardermoen Airport flight.

Cheap Illinois to Oslo Gardermoen Airport flight deals and tips

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

Fastest flight time

11h 05m

Direct flights

None
The fastest flight from Illinois to Oslo Gardermoen Airport takes 11h 05m
There are no direct flights from Illinois to Oslo Gardermoen Airport. There are no popular flight routes from Illinois to Oslo Gardermoen Airport.
Search flight deals

Frequently asked questions about flying from Illinois to Oslo Gardermoen Airport

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

    Prices for flights from Illinois to Oslo Gardermoen Airport refresh daily.

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

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

    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 Gardermoen Airport.

  • What documentation or ID do you need to fly to Oslo Gardermoen Airport?

    The travel and health documents required for your trip to Oslo Gardermoen Airport 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 Gardermoen Airport. 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 Gardermoen Airport

Compare and see reviews for airlines that fly from Illinois to Oslo Gardermoen Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $387Free CancellationRating
7.4
1,861 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $394Free CancellationRating
7.0
695 reviews
Search Icelandair flights
LufthansaPriceFrom $494Free CancellationRating
6.8
8,109 reviews
Search Lufthansa flights
American AirlinesPriceFrom $505Free CancellationRating
7.1
11,766 reviews
Search American Airlines flights
DeltaPriceFrom $510Free CancellationRating
7.8
8,452 reviews
Search Delta flights
KLMPriceFrom $516Free CancellationRating
7.8
1,532 reviews
Search KLM flights
United AirlinesPriceFrom $527Free CancellationRating
7.4
9,926 reviews
Search United Airlines flights

Traveling to a place near Oslo?

Book flights to Oslo if you plan to visit one of these locations
Gardermoen
Fredrikstad
Lillehammer
Drammen

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. All flights to Oslo from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

If you are not ready to book a flight from Illinois to Oslo now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Oslo and let you know when they change.

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