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$138+ Cheap flights from Mexico to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — STL
janv. 26 — févr. 21
dim. 1/26
dim. 2/2
1 adult, Economy
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Cheap flight deals from Mexico to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Mexico (MX0) to St. Louis (STL). 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 janvier 21, 2025.

Round-trip from

$298
(Booking.com)

One-way from

$138
(Orbitz)

Good round-trip deal

$229 or less

Good one-way deal

$192 or less
From Mexico to Lambert-St Louis
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One-way flight from Mexico to Lambert-St Louis
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Price to beat on a round-trip flight from Mexico to Lambert-St Louis.
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Price to beat on a one-way flight from Mexico to Lambert-St Louis.
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Find flight deals from Mexico to St. Louis

Cheapest flights from Mexico to St. Louis
Explore the most affordable flight options available from Mexico to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 21, 2025.

This Booking.com deal was found by Cheapflights users on 1/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/2012:21 pmCUN - STL
Nonstop3h 23mFrontier
ven. 2/215:20 pmSTL - CUN
1 stop14h 40mFrontier
Deal found 1/21$298
This OneTravel deal was found by Cheapflights users on 1/21. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/192:55 pmMTY - STL
2 stops41h 14mFrontier
lun. 6/26:55 pmSTL - MTY
1 stop22h 25mFrontier
Deal found 1/21$352
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
mar. 2/411:10 amMEX - STL
1 stop12h 21mMultiple Airlines
lun. 2/107:09 pmSTL - MEX
1 stop23h 36mMultiple Airlines
Deal found 1/21$388
This Frontier deal was found by Cheapflights users on 1/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/411:10 amMEX - STL
2 stops22h 06mFrontier
jeu. 2/66:25 amSTL - MEX
1 stop12h 20mFrontier
Deal found 1/21$409
This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/59:24 amCUN - STL
3 stops30h 19mMultiple Airlines
mar. 2/113:48 pmSTL - CUN
2 stops18h 53mMultiple Airlines
Deal found 1/21$422
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
mer. 2/195:50 pmMTY - STL
1 stop20h 54mMultiple Airlines
lun. 2/2412:15 pmSTL - MTY
2 stops8h 50mMultiple Airlines
Deal found 1/21$432
This United Airlines deal was found by Cheapflights users on 1/21. 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.
mer. 2/58:39 amCUN - STL
2 stops15h 51mUnited Airlines
mar. 2/118:00 amSTL - CUN
2 stops8h 50mUnited Airlines
Deal found 1/21$448
This United Airlines deal was found by Cheapflights users on 1/21. 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.
mar. 5/207:35 amMTY - STL
2 stops12h 26mUnited Airlines
lun. 6/25:27 pmSTL - MTY
2 stops16h 10mUnited Airlines
Deal found 1/21$463
This Aeromexico deal was found by Cheapflights users on 1/21. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/208:59 amCUN - STL
2 stops15h 38mAeromexico
ven. 2/216:00 amSTL - CUN
2 stops15h 44mAeromexico
Deal found 1/21$474
This United Airlines deal was found by Cheapflights users on 1/21. 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.
lun. 3/101:25 pmCZM - STL
1 stop6h 29mUnited Airlines
lun. 3/175:33 pmSTL - CZM
2 stops19h 50mUnited Airlines
Deal found 1/21$477
This United Airlines deal was found by Cheapflights users on 1/19. 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.
ven. 4/117:00 amAGU - STL
1 stop25h 56mUnited Airlines
dim. 4/275:35 pmSTL - AGU
2 stops18h 58mUnited Airlines
Deal found 1/19$486
This American Airlines deal was found by Cheapflights users on 1/20. 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.
mar. 2/116:00 amAGU - STL
1 stop9h 10mAmerican Airlines
ven. 2/147:04 amSTL - AGU
1 stop14h 50mAmerican Airlines
Deal found 1/20$495

Find flights from Mexico to St. Louis within your budget

Customize your flight search to find flights from Mexico to St. Louis 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 janvier 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

jeu. 2/20

12:21 pm-2:44 pm

Nonstop3h 23m

Lambert-St Louis

ven. 2/21

5:20 pm-9:00 am

1 stop14h 40m

$298

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

lun. 5/19

2:55 pm-9:09 am

2 stops41h 14m

Lambert-St Louis

lun. 6/2

6:55 pm-4:20 pm

1 stop22h 25m

$352

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

mar. 2/4

11:10 am-11:31 pm

1 stop12h 21m

Lambert-St Louis

lun. 2/10

7:09 pm-6:45 pm

1 stop23h 36m

$388

Mexico CitySt. Louis

MEX - STL

MEXSTL

Mexico City Benito Juarez

mar. 2/4

11:10 am-9:16 am

2 stops22h 06m

Lambert-St Louis

jeu. 2/6

6:25 am-6:45 pm

1 stop12h 20m

$409

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

mer. 2/5

9:24 am-2:43 pm

3 stops30h 19m

Lambert-St Louis

mar. 2/11

3:48 pm-11:41 am

2 stops18h 53m

$422

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

mer. 2/19

5:50 pm-2:44 pm

1 stop20h 54m

Lambert-St Louis

lun. 2/24

12:15 pm-9:05 pm

2 stops8h 50m

$432

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

mer. 2/5

8:39 am-8:43 pm

2 stops13h 04m

Lambert-St Louis

mar. 2/11

6:15 am-5:50 pm

1 stop10h 35m

$448

MonterreySt. Louis

MTY - STL

MTYSTL

Monterrey Gen Mariano Escobedo

mar. 5/20

7:35 am-9:01 pm

2 stops12h 26m

Lambert-St Louis

lun. 6/2

5:27 pm-8:37 am

2 stops16h 10m

$463

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

jeu. 2/20

8:59 am-11:37 pm

2 stops15h 38m

Lambert-St Louis

ven. 2/21

6:00 am-10:44 pm

2 stops15h 44m

$474

CozumelSt. Louis

CZM - STL

CZMSTL

Cozumel

lun. 3/10

1:25 pm-8:54 pm

1 stop6h 29m

Lambert-St Louis

lun. 3/17

5:33 pm-12:23 pm

2 stops19h 50m

$477

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 53 results
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Best time to book a flight from Mexico to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Mexico 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.

Travel insights for flights from Mexico to St. Louis

Get recent, data-driven insights about flights from Mexico to St. Louis including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Mexico to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Mexico to St. Louis (average of $311). Flying from Mexico to St. Louis in March is currently the most expensive (average of $356). 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.

What is the cheapest time of day to fly from MX to STL?

Find hourly flight availability from Mexico to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated janvier 21, 2025.

When flying from Mexico to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Mexico to St. Louis

Explore weekly flight availability from Mexico to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated janvier 21, 2025.

The most flights from MX0 to STL are scheduled on a Monday (3 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated janvier 21, 2025.
Peruse reviews from past customers who have flown with Frontier, United Airlines and Aeromexico from Mexico to St. Louis to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Aeromexico
7.5
Good
1,849 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

  • What airport do you fly into for flights to St. Louis from Mexico?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Mexico.

  • How popular is this Mexico to St. Louis flight route?

    This flight path from Mexico to Lambert-St Louis was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Mexico to St. Louis one-way?

    One-way options have recently been found by users for as low as $138 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $158 and Aeromexico from $217 one-way.

  • What are the most popular routes from Mexico to St. Louis?

    The most popular flight routes from Mexico to St. Louis are Mexico City Benito Juarez - Lambert-St Louis, Monterrey Gen Mariano Escobedo - Lambert-St Louis and Cancun - Lambert-St Louis.

  • What are the most reliable airlines from Mexico to St. Louis?

    No one likes to see their flight delayed. When booking a flight from Mexico to St. Louis consider choosing Frontier (79%), Southwest (73%) or American Airlines (67%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Mexico to St. Louis?

    Looking at all options, your cheapest flight can be booked for $124. While the most popular route (Mexico City Benito Juarez - Lambert-St Louis) can be booked for $387 on average our data indicates $216 when flying from Mexico to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Mexico to St. Louis 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 Mexico to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Mexico to St. Louis (average of $311). Flying from Mexico to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Mexico?

Book flights to Mexico if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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Alternative routes for Mexico to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Mexico to St. Louis

Discover the top 3 airlines that operate flights from Mexico to St. Louis. 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 janvier 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$413Average$563FlexibilityNo cancel feeOn-time69%
DeltaCheapest$433Average$485FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$458Average$676FlexibilityNo cancel feeOn-time71%
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