HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
León

$526+ Cheap flights from St. Louis (STL) to León, Mexico (BJX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BJX
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to León with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to León

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to León (BJX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 16, 2025.

Round-trip from

$526
(Delta)

Popular in

October

Cheapest in

May

Average price

$570
From Lambert-St Louis to León Del Bajio
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from St. Louis to León

Cheapest flights from St. Louis to León
Explore the most affordable flight options available from St. Louis to León. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:00 amSTL - BJX
2 stops14h 20mDelta
Thu 10/2312:40 pmBJX - STL
2 stops10h 01mDelta
Deal found 8/13$526
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:22 amSTL - BJX
1 stop26h 13mMultiple Airlines
Thu 10/2311:59 pmBJX - STL
2 stops11h 01mMultiple Airlines
Deal found 8/13$538
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:01 pmSTL - BJX
2 stops15h 12mMultiple Airlines
Sat 9/610:15 amBJX - STL
1 stop30h 55mMultiple Airlines
Deal found 8/15$545
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:41 pmSTL - BJX
1 stop15h 04mAmerican Airlines
Mon 10/133:09 pmBJX - STL
1 stop7h 40mAmerican Airlines
Deal found 8/13$546
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:00 amSTL - BJX
2 stops9h 22mDelta
Mon 10/139:25 amBJX - STL
1 stop11h 03mDelta
Deal found 8/13$571
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:41 amSTL - BJX
1 stop15h 01mAmerican Airlines
Wed 11/54:07 pmBJX - STL
1 stop18h 30mAmerican Airlines
Deal found 8/14$691
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:43 pmSTL - BJX
2 stops19h 11mUnited Airlines
Wed 11/55:55 amBJX - STL
1 stop16h 04mUnited Airlines
Deal found 8/14$706
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2111:02 amSTL - BJX
2 stops12h 31mDelta
Mon 8/259:24 amBJX - STL
1 stop8h 43mDelta
Deal found 8/13$792
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:15 amSTL - BJX
1 stop5h 21mAmerican Airlines
Mon 8/255:09 amBJX - STL
1 stop12h 21mAmerican Airlines
Deal found 8/13$812
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:56 amSTL - BJX
1 stop9h 19mAmerican Airlines
Thu 1/16:09 amBJX - STL
1 stop12h 10mAmerican Airlines
Deal found 8/14$843

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to León that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2025.
Use the filters below to find and compare flights from St. Louis to León that are best for you.

Fly from

St. Louis

Fly to

León

Route

Depart

Return

Price

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Tue 10/14

6:00 am-7:20 pm

2 stops14h 20m

León Del Bajio

Thu 10/23

12:40 pm-11:41 pm

2 stops10h 01m

$526

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Tue 10/14

7:00 am-2:28 pm

1 stop8h 28m

León Del Bajio

Thu 10/23

5:09 am-8:51 pm

1 stop14h 42m

$526

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Tue 10/14

10:22 am-11:35 am

1 stop26h 13m

León Del Bajio

Thu 10/23

11:59 pm-12:00 pm

2 stops11h 01m

$538

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Mon 10/6

7:41 pm-9:45 am

1 stop15h 04m

León Del Bajio

Mon 10/13

3:09 pm-11:49 pm

1 stop7h 40m

$546

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Mon 10/6

6:00 am-2:22 pm

2 stops9h 22m

León Del Bajio

Mon 10/13

9:25 am-9:28 pm

1 stop11h 03m

$571

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Thu 10/30

8:41 am-10:42 pm

1 stop15h 01m

León Del Bajio

Wed 11/5

4:07 pm-10:37 am

1 stop18h 30m

$691

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Thu 10/30

4:43 pm-10:54 am

2 stops19h 11m

León Del Bajio

Wed 11/5

5:55 am-9:59 pm

1 stop16h 04m

$706

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Wed 12/24

11:56 am-9:15 pm

1 stop9h 19m

León Del Bajio

Thu 1/1

6:09 am-6:19 pm

1 stop12h 10m

$843

St. LouisLeón

STL - BJX

STLBJX

Lambert-St Louis

Wed 12/24

2:45 pm-11:54 am

2 stops21h 09m

León Del Bajio

Thu 1/1

3:50 pm-11:31 pm

1 stop7h 41m

$1,013

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from St. Louis to León

Have a flexible travel schedule? Discover the best time to fly to León from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to León

What is the cheapest month to book a flight from St. Louis to León, Guanajuato?

Currently, January is the cheapest month in which you can book a flight from St. Louis to León, Guanajuato (average of $355). Flying from St. Louis to León, Guanajuato in December is currently the most expensive (average of $726). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing León

Get insights into the airlines that provide service to León. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to León. Reviews last updated August 16, 2025.
Read reviews from past customers who have flown American Airlines from St. Louis to León. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Entertainment

6.9

Boarding

7.5

Food

6.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Entertainment

6.9

Boarding

7.5

Food

6.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to León. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from St. Louis to León, Guanajuato round-trip?

    According to our current data, American Airlines ($469), offers the cheapest pricing from St. Louis to León, Guanajuato. American Airlines is priced at 22% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from St. Louis to León that include hotel bookings?

    Yes. In addition to deals on St. Louis to León flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to León?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to León.

  • Can I find deals for business class flights from St. Louis to León?

    Yes. Cheapflights offers flight deals from St. Louis to León by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to León, Guanajuato?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to León, Guanajuato (average of $355). Flying from St. Louis to León, Guanajuato in December is currently the most expensive (average of $726). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to León

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to León flights
St. Louis to Santiago de Querétaro flights

Top airline flying from St. Louis to León

Discover the top airline that operate flights from St. Louis to León. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$469Average$566FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.