
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $359 (Ticket) |
One-way from | $252 (TAP AIR PORTUGAL) |
Popular in | June |
Cheapest in | November |
Average price | $612 |
Fly from
Fly to
Route
Depart
Return
Price
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Tue 1/20
10:40 am-9:20 am
2 stops15h 40m
Oslo Gardermoen
Sun 1/25
11:05 am-4:55 pm
1 stop12h 50m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Thu 1/22
6:30 pm-11:35 am
1 stop10h 05m
Oslo Gardermoen
Thu 1/29
1:10 pm-5:20 pm
1 stop11h 10m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Wed 2/25
6:30 pm-11:35 am
1 stop10h 05m
Oslo Gardermoen
Mon 3/16
1:10 pm-6:20 pm
1 stop11h 10m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Sat 2/28
6:30 pm-11:35 am
1 stop10h 05m
Oslo Gardermoen
Sun 3/15
9:30 pm-6:20 pm
1 stop26h 50m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Wed 1/21
10:29 am-9:20 am
2 stops15h 51m
Oslo Gardermoen
Wed 1/28
5:55 am-4:45 pm
1 stop17h 50m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Thu 2/19
7:20 pm-1:10 pm
1 stop10h 50m
Oslo Gardermoen
Sun 3/8
11:05 am-5:45 pm
1 stop12h 40m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Thu 1/8
4:10 pm-12:10 pm
1 stop13h 00m
Oslo Gardermoen
Wed 1/21
6:05 am-3:20 pm
1 stop16h 15m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Tue 2/24
6:30 pm-11:35 am
1 stop10h 05m
Oslo Gardermoen
Tue 3/17
1:10 pm-6:20 pm
1 stop11h 10m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Wed 2/11
5:55 pm-10:55 pm
1 stop22h 00m
Oslo Gardermoen
Tue 2/17
11:50 am-6:25 pm
1 stop13h 35m
ChicagoOslo
ORD - OSL
ORDOSL
Chicago O'Hare Intl
Tue 2/24
6:30 pm-11:35 am
1 stop10h 05m
Oslo Gardermoen
Sun 3/15
9:30 pm-6:20 pm
1 stop26h 50m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Chicago to Oslo Gardermoen Airport, you should look to book at least 60 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, December is the cheapest month in which you can book a flight from Chicago to Oslo Gardermoen Airport (average of $377). Flying from Chicago to Oslo Gardermoen Airport in June is currently the most expensive (average of $621). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
A simple way to save on the total cost of your ticket is to fly from Chicago to Oslo Gardermoen Airport in the morning. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight at noon.
Copenhagen (CPH) – chosen by Cheapflights users on 44% of 1-stop itineraries from Chicago to Oslo Gardermoen Airport on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $545.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 06m.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 19m.
About 40% of weekly flights between Chicago and Oslo have experienced delays in the past year, with the average delay time being 244 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Atlas Air have had the lowest number of delays on this route, with just 50% of flights being delayed.
Food
Entertainment
Boarding
Crew
Overall
Comfort
Reviews
Kent,Aug 2025
CPH - SEA
Food
Entertainment
Boarding
Crew
Overall
Comfort
Reviews
Kent,Aug 2025
CPH - SEA
Food
Entertainment
Boarding
Crew
Overall
Comfort
Reviews
Kent,Aug 2025
CPH - SEA
Food
Entertainment
Boarding
Crew
Overall
Comfort
Reviews
Kent,Aug 2025
CPH - SEA
Food
Entertainment
Boarding
Crew
Overall
Comfort
Reviews
Kent,Aug 2025
CPH - SEA
Food
Entertainment
Boarding
Crew
Overall
Comfort
Reviews
Kent,Aug 2025
CPH - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$388 | Average$782 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$417 | Average$604 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$494 | Average$614 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$505 | Average$570 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$513 | Average$634 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$521 | Average$629 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$530 | Average$684 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$532 | Average$644 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$544 | Average$775 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$544 | Average$747 | FlexibilityNo cancel fee | On-time75% |