Cheap flights from Chicago to Cancún from $99

If you don’t want to visit Cancún in September, then you should wait until January to fly from Chicago, when ticket prices are also cheap, with an average price of $388.

The cheapest day to depart from Chicago to Cancún is on a Monday when prices can be found for as low as $429. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $504. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

Our most recent data shows that the best time of day to fly to Cancún is in the afternoon. Flights from Chicago to Cancún during this time can be as low as $445. Flights to Cancún are more costly at noon, with an average ticket price of $693. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Cancún from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around $450 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from Chicago for as low as $374 on momondo.

There are 4 cabin classes available to choose from on Chicago to Cancun flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Chicago to Cancún.

As of March 2026, prices for Chicago to Cancún flights are approximately 32% more expensive when compared to flights at the same time last year.

Southwest, United Airlines, and Delta are the most popular carriers operating from Chicago to Cancun

American Airlines, United Airlines and Spirit Airlines are the top three most popular airlines that fly to Cancún from Chicago according to our data. American Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Cancún. Keep in mind that there are 11 different airlines that fly to Cancún on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% of flights between Chicago and Cancún have experienced a delay on any given week. The average delay length over the past 12 months has been 155 minutes.

Generally, flights departing at night 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, Spirit Airlines have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

Atlanta (ATL) was the most common stop: 48% of momondo users choosing 1-stop flights on this route connected there.

Flights via León (BJX) offer the lowest average round-trip price of $281.

Flights connecting via St. Louis (STL) have the shortest average one-way travel time: 5h 10m.

Dallas (DFW) has the shortest average layover time for this route: 1h 22m.

As of March 2026, 8 flights take off from Chicago and land in Cancún each day. The most common flight departure time for this route is 7:00AM, with 88% of daily flights taking off at noon.

As of March 2026, 60 flights take off from Chicago and land in Cancún each week. The most common flight departure day for this route is Sat, with 28% of weekly flights taking off on this day.