Cheap flights from Illinois to El Paso from $75

The cheapest month to fly to El Paso from Illinois is in August. Flight prices, which tend to average around $284, are often lower during this time because this is during the off-season. If you’re not able to fly to El Paso in August, then September is your next best option. Flight prices from Illinois to El Paso during September average around $311.

The cheapest day to depart on your flight to El Paso is on a Wednesday when prices can be found for as low as $342. This is often the case because there is less demand to fly during this day of the week. Flights from Illinois to El Paso on a Monday will generally be more expensive and average around $517. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to El Paso is in the afternoon. momondo users have found flights departing from Illinois to El Paso in the afternoon for as low as $356. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to El Paso are more costly in the evening, with an average ticket price of $412. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Chicago O'Hare Intl to El Paso for the best Illinois - El Paso flight prices

You are more likely to see cheaper flights to El Paso from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to El Paso for around $354 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to El Paso from Illinois for as low as $302 on momondo.

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

Frontier, United Airlines, and Southwest are the most popular carriers operating from Illinois to El Paso

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to El Paso from Illinois according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to El Paso. Keep in mind that there are 4 different airlines that fly to El Paso on a routine basis, so you have a few additional options to choose from.

The number of flights available between Illinois and El Paso is 5 per day as of February 2026. The most frequent departure time is 8:00PM, with 85% of daily flights leaving in the evening.

40 flights are operational weekly from Illinois to El Paso as of February 2026. The most popular departure day for this route is Thu, with 18% of flights per week taking off on this day.