Cheap flights from Illinois to Mexico from $109

If you’re not able to fly to Mexico in September, then January is your next best option. Flight prices from Illinois to Mexico during January average around $381.

The cheapest day to depart on your flight to Mexico is on a Sunday when prices can be found for as low as $434. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $496. These prices are subject to change though, so be sure to set up a Price Alert for flights to Mexico.

Our data shows that the cheapest Illinois to Mexico flights are usually those with departure times in the morning. Our users have found flights to Mexico in the morning for as low as $465. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $557 on average. Flights to Mexico from Illinois in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Mexico from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Mexico for around $453 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Mexico from Illinois for as low as $355 on momondo.

Viva, Volaris, and Frontier are the most popular carriers operating from Illinois to Mexico

Volaris, American Airlines and Viva are the top three most popular airlines that fly to Mexico from Illinois according to our data. Volaris is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Mexico. Keep in mind that there are 12 different airlines that fly to Mexico on a routine basis, so you have a few additional options to choose from.

As of May 2026, 38 flights take off from Illinois and land in Mexico each day. The most common flight departure time for this route is 3:00PM, with 52% of daily flights taking off at noon.

The number of flights available between Illinois and Mexico is 269 per week as of May 2026. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.