$226 Find Cheap Flights from Chicago to Oslo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Oslo departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Oslo.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Oslo.
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Everything you should know

Cheapest round-trip
$598
Typical prices: $517-$766
Icelandair
Thu 9/17Sat 9/26
ORD - OSL • 1 stop
Cheapest one-way
$226
Typical prices: $358-$495
Icelandair
Thu 8/20
ORD - OSL • 1 stop
Top airlines
Cheapest • from $598 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Avoid delays
Most punctual • 44% on-time
Best time • Fewest delays
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Flight Deals

Cheap Flights from Chicago to Oslo (CHI-OSL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Oslo 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.

Recent round-trip flight deals from Chicago to Oslo

Thu, Sep 17 - Sat, Sep 26
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
$598Icelandair
Tue, Oct 27 - Tue, Nov 3
Icelandair Logo
7:30 pm - 11:35 am
ORD
-
OSL
10h 05m
1 stop
Icelandair Logo
1:10 pm - 5:20 pm
OSL
-
ORD
11h 10m
1 stop
$599Icelandair
Sat, Aug 29 - Wed, Sep 9
Icelandair Logo
10:25 pm - 3:25 pm
ORD
-
OSL
10h 00m
1 stop
Icelandair Logo
1:50 pm - 9:25 pm
OSL
-
ORD
14h 35m
1 stop
$600Icelandair
Wed, Sep 16 - Sat, Sep 26
Icelandair Logo
7:25 pm - 12:15 pm
ORD
-
OSL
9h 50m
1 stop
Icelandair Logo
4:30 pm - 6:15 pm
OSL
-
ORD
32h 45m
1 stop
$602Icelandair
Fri, Nov 6 - Wed, Nov 11
Scandinavian Airlines Logo
7:15 pm - 1:10 pm
ORD
-
OSL
10h 55m
1 stop
Scandinavian Airlines Logo
12:10 pm - 4:45 pm
OSL
-
ORD
11h 35m
1 stop
$609Scandinavian Airlines
Mon, Aug 24 - Mon, Aug 31
Multiple Airlines Logo
10:25 pm - 3:25 pm
ORD
-
OSL
10h 00m
1 stop
Multiple Airlines Logo
7:05 am - 5:50 pm
OSL
-
ORD
41h 45m
2 stops
$616Multiple Airlines
Mon, Aug 10 - Mon, Aug 31
Multiple Airlines Logo
7:25 pm - 12:35 pm
ORD
-
OSL
10h 10m
1 stop
Multiple Airlines Logo
7:05 am - 5:50 pm
OSL
-
ORD
41h 45m
2 stops
$618Multiple Airlines
Mon, Sep 7 - Sun, Nov 15
Scandinavian Airlines Logo
7:15 pm - 12:25 am
ORD
-
TRF
22h 10m
1 stop
Scandinavian Airlines Logo
2:35 pm - 4:45 pm
TRF
-
ORD
33h 10m
1 stop
$737Scandinavian Airlines
Tue, Nov 10 - Fri, Nov 13
Delta Logo
9:55 am - 1:50 pm
MDW
-
OSL
20h 55m
2 stops
Delta Logo
6:15 am - 4:25 pm
OSL
-
MDW
17h 10m
2 stops
$742Delta
Mon, Nov 9 - Fri, Nov 13
Delta Logo
5:25 pm - 4:10 pm
MDW
-
OSL
15h 45m
2 stops
Delta Logo
6:15 am - 4:25 pm
OSL
-
MDW
17h 10m
2 stops
$749Delta
Booking Insights

KAYAK's insights & trends for Chicago to Oslo flights

Get data-powered insights and trends into flights from Chicago to Oslo to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago to Oslo?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago to Oslo departing in September.

What is the cheapest month to fly from Chicago to Oslo?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Oslo, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to Oslo is September, where tickets cost $225 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $424 and $397 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to Oslo, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to Oslo, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Cheapest flight$226
Flight from Chicago O'Hare Airport to Oslo Airport

When to book flights from Chicago to Oslo

Are your dates flexible? Find out the best times to travel from Chicago to Oslo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to Oslo

  • What is the cheapest flight from Chicago to Oslo?

    In the last 5 days, the lowest price for a flight from Chicago to Oslo was $234 for a one-way ticket and $598 for a round-trip.

  • Do I need a passport to fly between Chicago and Oslo?

    A passport is required to fly from Chicago to Oslo.

  • Which airports will I be using when flying from Chicago to Oslo?

    There are 2 airports in Chicago (Chicago Midway and Chicago O'Hare Intl) and 2 airports in Oslo (Oslo Gardermoen and Oslo Sandefjord). The cheapest flights are generally found on the Chicago O'Hare Airport to Oslo Airport flight route.

  • Which aircraft models fly most regularly from Chicago to Oslo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago to Oslo?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Chicago and Oslo, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Oslo from Chicago?

    Reykjavik is the most popular layover city among KAYAK users traveling from Chicago to Oslo.

  • How does KAYAK find such low prices on flights from Chicago 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 Chicago to Oslo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oslo from Chicago 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 Chicago 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 Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago 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 Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Chicago to Oslo

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Oslo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Oslo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1530 reviews
8.4Crew
7.7Comfort
7.2Entertainment
7.8Boarding
7.3Food
Airline reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

8.0 ExcellentAnonymous, Jun 2026
LHR - AMS
Read more KLM reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

Brand new plane lots of room the snack was very flavourful and enjoyable

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Old plane, food not that great - lacked taste. Crew was nice but strict.

Terrible airlines, kept lying to me about the fact that my connection flight was cancelled. Left me hanging until last min. NEVER AGAIN

Mediocre. Maybe due to Economy light. Staff was great. Space shrunk, not for me, and definitely not for Vikings. Food was decent. Assistance lagging. There was a possibility to upgrade to Premium economy, however my bid was immediately classified as low and not even considered (though well over minimum bid). Thus I was no bleeding dry.

Upon departing and landing, the man seating in front of me had his seat leaning back. Taking off nobody told him anything. Landing someone from the crew said something but the passenger ignored him and nobody followed up. Felt a bit unsecured. If this that is some of the basics are missed, what else was overlooked?

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

Every flight got canceled or delayed. Customer service was awful.

They lost my luggage and can’t find it. My trip is ruined. Online tracking of lost luggage doesn’t work

No free Wi-Fi. I have SkyMiles but not a high status, having an account has been enough for Wi-Fi on other flights, but this one was going to charge me to use it. Also turbulence was really bad toward the end, but I didn't count this in my ratings since I know Delta cannot control the weather - it's 2026 and lack of WiFi alone is enough for a poor rating.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

Smooth travel. Immediate update prior flight delay so I can arrange myself properly without too rush.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

The flight was cancelled, so why are you asking me how the flight was?

We sat in our seats on the tarmac for almost 3 hours due to storms. They would not give us water or a snack. We were to depart at 7.30 pm and it was about 10.30 when we took off. No dinner until much after that. Beef type noodle dish was terrible with about a teaspoon of beef in it. The breakfast sweet waffle with egg and sausage inside was horrible. An English muffin sandwich would have been much better. Food was the worst in all of our years of traveling the world.

Our screen kept turning off ...3 times...had to get crew attention to turn it on again

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Everything you need to know for your flight from Chicago to Oslo

Cabin class types available on flights from Chicago to Oslo

Cabin classes available on flights from Chicago to Oslo. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.