$167 Find Cheap Flights from León to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from León to Illinois departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from León to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from León to Illinois, as well as popular online travel agencies
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Cheap Flights from León to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$275
St. Louis
St. Louis1 stop$463
Chicago
Chicago1 stop$275
St. Louis
St. Louis1 stop$463

Book Cheap León to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from León to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from León to Illinois

Tue, Jan 20 - Mon, Jan 26
Viva Logo
8:05 pm - 11:50 pm
BJX
-
ORD
27h 45m1 stop
Viva Logo
1:20 am - 9:35 am
ORD
-
BJX
8h 15m1 stop
$275Viva
Fri, Mar 13 - Mon, Mar 16
Frontier Logo
5:57 pm - 10:48 pm
BJX
-
ORD
3h 51mnonstop
Frontier Logo
1:00 am - 4:18 am
ORD
-
BJX
4h 18mnonstop
$281Frontier
Thu, Feb 12 - Wed, Feb 18
Aeromexico Logo
12:09 pm - 11:00 pm
BJX
-
ORD
10h 51m1 stop
Aeromexico Logo
1:11 am - 9:11 am
ORD
-
BJX
8h 00m1 stop
$284Aeromexico
Wed, Jan 28 - Mon, Feb 9
Delta Logo
3:35 pm - 11:00 pm
BJX
-
ORD
7h 25m1 stop
Delta Logo
7:05 am - 7:19 pm
ORD
-
BJX
12h 14m2 stops
$294Delta
Wed, Mar 18 - Sun, Mar 22
Frontier Logo
5:57 pm - 10:48 pm
BJX
-
ORD
3h 51mnonstop
Frontier Logo
1:00 am - 4:18 am
ORD
-
BJX
4h 18mnonstop
$295Frontier
Wed, Jan 28 - Mon, Feb 9
Delta Logo
11:56 am - 10:22 pm
BJX
-
MDW
10h 26m2 stops
Delta Logo
6:00 am - 4:14 pm
MDW
-
BJX
10h 14m2 stops
$299Delta
Thu, Feb 26 - Mon, Mar 2
Aeromexico Logo
9:56 am - 10:31 pm
BJX
-
MDW
12h 35m1 stop
Aeromexico Logo
6:00 am - 4:21 pm
MDW
-
BJX
10h 21m1 stop
$300Aeromexico
Fri, Mar 20 - Mon, Mar 23
Viva Logo
1:40 pm - 12:45 am
BJX
-
ORD
10h 05m1 stop
Viva Logo
2:20 am - 9:30 am
ORD
-
BJX
8h 10m1 stop
$312Viva
Wed, Mar 4 - Mon, Mar 9
United Airlines Logo
5:55 am - 3:38 pm
BJX
-
STL
9h 43m1 stop
United Airlines Logo
6:00 am - 5:44 pm
STL
-
BJX
12h 44m1 stop
$463United Airlines
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
5:55 am - 8:26 pm
BJX
-
STL
14h 31m2 stops
United Airlines Logo
7:00 am - 6:44 pm
STL
-
BJX
11h 44m2 stops
$486United Airlines
Booking Insights

KAYAK's insights & trends for León to Illinois flights

Get data-powered insights and trends into flights from León to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest León to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from León found in the last 72 hours was to Chicago, at $160 round-trip. The most popular route is from León (BJX) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $160.

Can I save money by flying with a layover from León to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $407, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from León to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from León to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from León to Illinois is May, when tickets cost $268 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $401 and $367 respectively.

What’s the cheapest day of the week to fly from León to Illinois?

The average price of all round-trip flights from León to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from León to Illinois. For your return ticket, we recommend flying on a Tuesday and avoiding Wednesdays for the best deals.

How far in advance should I book a flight from León to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from León to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from León to Illinois, you should book around 13 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$171
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from León to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from León to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from León to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from León to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from León to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from León to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from León to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from León to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from León to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $295 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $376.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from León to the following destinations at these prices or less: Chicago $216 one-way - $281 round-trip

Reviews of the top 3 airlines serving from León to Illinois

 
See real verified KAYAK customer reviews for airlines flying from León to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from León to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9123 reviews
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

The staff was nice, however boarding taking 2 hours. That’s insane. Overall very bad experience, a lot of turbulence and when landed in Chicago was horrible. I don’t think I’ll flight with UA again.

4.0 OkayAnonymous, Dec 2025
LIR - ORD
Read more United Airlines reviews

The staff was nice, however boarding taking 2 hours. That’s insane. Overall very bad experience, a lot of turbulence and when landed in Chicago was horrible. I don’t think I’ll flight with UA again.

An international flight on an apron is pretty unusual in my 40 years of traveling. Departure delay. Luggage despite over an hour connection did not make it to the flight. Actually still in Germany. My luggage was not moved until I reached my final destination despite knowing it to be left in Germany upon my arrival in Chicago. The service left me a little off, both going and returning from Europe. Light on in the cabin even during a night flight and lots of traffic no matter what. Maybe passengers want more service? As a frequent traveler i just want to be able to sleep, the food will be better at the destination anyway. So since the cabin crew woke me up I asked for a cocktail, I did not get the best response although sitting in row 20 premium economy. I usually fly premium economy or business and my 2 flight to Europe in 2025 with United both had luggage delays and other minor issues. American flights to Australia, Canada and Europe went smoothly and Premium plus feels very much like business light. Is United Club becoming a waste and Silver/Gold levels another waste??

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

United has come a long way, it’s been a fantastic experience traveling with them.

This flight leg was fantastic - super comfortable and a great selection of things to watch on the TV. Staff were excellent, really above and beyond.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Staff especially Alan Hernandez was a great help with arrangements for my partner and me sit together. This made the trip do much more enjoyable. Thanks so much.

One of the flight was delayed an hour. We then boarded a new flight. We were told to unboard after some other time. To wait for the next flight for another hour. I paid for a short flight that turned in to half a day of travel.

No entertainment, charging, nor wifi on board but I napped for basically the entire time so it was alright. Was allowed to switch seats because the flight was not full but everyone was assigned to the back. Comfortable seats and we got moved to the emergency exit so the extra room was nice.

Painless trip. Only downside: No entertainment system (which we know with Viva & Volaris) and very small seat space. I'm petite and felt squizzed. I'm not sure how most overweight passengers do.

I was charge $90 for my bag more then the fight crazy!! And the plain hit a couple of birds on the take off bird strikes we returned back and had to change planes bad customer service everyone has an attitude problem!!! Bad experience!!!

The bad thing is they didnt send me the deatils about how much alowed bagage ehight 1 carryon or cheacking bag Also they just send in spanishlanfuage i couldnt understand emails

The boarding process was ridiculous. The boarded groups into a walkway just before the aerobridge (about 20 mins late), whilst we watch the crew stroll casually onto the plane, running late. And then they made us line up on then aerobridge with no aircon for 10 minutes before we boarded. Staff are just as ghetto as the customers. Wouldn’t fly again

They closed the gate over 25 minutes before departure and I didn’t get to board.

No empathy for my situation, arriving at the check-in counter 5 minutes after the deadline to deposit baggage due to a very delayed incoming intercontinental flight. The attendant simply stared past my shoulder and picked up the microphone to announce a "reminder that all passengers must arrive at least one hour before the flight" before speaking to the passenger behind me. I understand that there are rules above deadlines but at least show some damn empathy. It was Christmas morning and I'd been travelling for 20 hours for goodness sake!

They no longer offer anything free to eat or drink, everything is sold, not even a bottle of water is offered for free.

Unfortunately it was not a good flight got canceled had to be at the airport all night long to get a different flight to another airport my first flight with Volaris was very bad. Poor services

The boarding , and it would be nice if they would let us know head of time about flight changes

The flight was delayed by two hours. I had paid for extended leg room. Due to the delay, the plane was different and I didn't end up having extended leg room. I finally was able to reach Volaris on Whats App and they gave me an airline credit. I wanted a refund to the credit card since I hardly ever fly Volaris. Other than that, it was a very comfortable flight.

In Mexico charges too much for my luggage and I ask for help and nothing one lady she just disappeared 😡😡😡😡😡never going to fly there

The check-in is either at a kiosk that didn’t allow me to check-in because my middle name was not on the reservation or at an agent that cost $15.

Better communication about delayed flight. I am thankful for a small credit for late flight.

Liked on time, rear entry and exit from plane Dislike the use of duct tape to repair seat rests

Terrible. And they charged over $400 just for luggage. And threatened that I would loose my flight if I didn’t pay. So I didn’t have another choice but to pay.

They check you everything before entering to waiting room, if you have any liquid they take it away even if you buy it inside the airport, no recommend volaris, for mi know Alaska airline is better

They don’t give anything for free you have to pay for everything which it’s expected but at least give out water and a snack as a courtesy for flying with them.

Everything you need to know for your flight from León to Illinois

Information on your arrival and departure airports