Cheap flights from Chicago to Oslo from $333

The month of September is, on average, the cheapest month to fly to Oslo from Chicago, with most prices found around $225. If you’re not able to fly to Oslo in September, then March is your next best option. Flight prices from Chicago to Oslo during March average around $236.

You are more likely to see cheaper flights to Oslo from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo for around $596 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo from Chicago for as low as $509 on momondo.

Delta, Lufthansa, and Aer Lingus are the most popular carriers operating from Chicago to Oslo

Icelandair, Scandinavian Airlines and United Airlines are the top three most popular airlines that fly to Oslo from Chicago according to our data. Icelandair is the first choice among our users, with 54% 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.

Historically, on average around 35% of flights between Chicago and Oslo have experienced a delay on any given week. The average delay length over the past 12 months has been 242 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, Atlas Air have had the least number of delays on this route over the last 12 months; with about 41% of their flights experiencing any sort of delay.