Cheap flights from Chicago to Calgary from C$ 172

The cheapest month to fly to Calgary from Chicago is in January. Flight prices, which tend to average around C$ 321, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Calgary from Chicago during May instead. Flights to Calgary in May, while not as cheap as those in January, still average around C$ 429.

The cheapest day to depart on your flight to Calgary is on a Monday when prices can be found for as low as C$ 234. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 771.

Our data shows that the cheapest Chicago to Calgary flights are usually those with departure times at noon. Our users have found flights to Calgary at noon for as low as C$ 249. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 523 on average. Flights to Calgary from Chicago in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Chicago O'Hare Intl to Calgary for the best Chicago - Calgary flight prices

You are more likely to see cheaper flights to Calgary from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around C$ 511 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from Chicago for as low as C$ 444 on momondo.

There is only 1 cabin class available to choose from on Chicago to Calgary flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 32% on your flight if you consider stops on a Chicago to Calgary flight.

As of October 2026, prices for Chicago to Calgary flights are approximately 23% cheaper when compared to flights at the same time last year.

Historically, on average around 26% of flights between Chicago and Calgary have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

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

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

According to our data, United Airlines has had the least delays on this route over the last 12 months, with about 24% of their flights experiencing any sort of delay.

As of October 2026, there are 2 flights per day flying from Chicago to Calgary. The most common time of day flights depart is 10:00a.m., with 86% of flights taking off at noon.

As of October 2026, 14 flights take off from Chicago and land in Calgary each week. The most common flight departure day for this route is Sun, with 29% of weekly flights taking off on this day.