Cheap flights from Monterrey to Illinois from $145

The cheapest month to fly to Illinois from Monterrey is in February. Flight prices, which tend to average around $268, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $331.

The cheapest day to depart from Monterrey to Illinois is on a Monday when prices can be found for as low as $343. Flights from Monterrey to Illinois on a Tuesday will generally be more expensive and average around $637. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Monterrey to Illinois during this time can be as low as $365. Flights at noon are often more expensive with an average ticket price of $615.

Fly from Monterrey Gen Mariano Escobedo to Chicago O'Hare Intl for the best Monterrey Gen Mariano Escobedo - Illinois flight prices

You are more likely to see cheaper flights to Illinois from Monterrey when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $420 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Monterrey for as low as $262 on momondo.

There are 3 cabin classes available to choose from on Monterrey to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Viva, Volaris, and Delta are the most popular carriers operating from Monterrey Gen Mariano Escobedo to Illinois

Viva, United Airlines and Delta are the top three most popular airlines that fly to Illinois from Monterrey according to our data. Viva is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

As of October 2026, there are 1 flights per day flying from Monterrey to Illinois. The most common time of day flights depart is 12:00PM, with 70% of flights taking off in the afternoon.

7 flights are operational weekly from Monterrey to Illinois as of October 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.