$191+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — STL
Aug 28 — Sep 41
Round-trip
1 adult, Economy
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Find cheap flights from Mexico to St. Louis 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
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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 Mexico to St. Louis
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Cheapest flights from Mexico to St. LouisExplore 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 July 29, 2026.
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 July 29, 2026.
This Orbitz deal was found by Cheapflights users on 7/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am
MEX
- STL
1 stop8h 31m
Frontier
Thu 9/1710:20 am
STL
- MEX
1 stop13h 25m
Frontier
Deal found 7/27![Frontier logo]()
$338
This Air Canada deal was found by Cheapflights users on 7/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:05 pm
CUN
- STL
1 stop16h 55m
Air Canada
Thu 9/248:55 am
STL
- CUN
1 stop11h 15m
Air Canada
Deal found 7/28![Air Canada logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/3111:30 am
MTY
- STL
1 stop28h 01m
Multiple Airlines
Sun 9/65:27 pm
STL
- MTY
1 stop23h 53m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$390
This Aeromexico deal was found by Cheapflights users on 7/25. 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.
Thu 8/272:10 pm
CUN
- STL
1 stop9h 48m
Aeromexico
Mon 8/316:00 am
STL
- CUN
2 stops14h 32m
Aeromexico
Deal found 7/25![Aeromexico logo]()
$393
This Frontier deal was found by Cheapflights users on 7/25. 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.
Thu 10/157:00 am
MEX
- STL
1 stop9h 46m
Frontier
Mon 10/198:34 pm
STL
- MEX
2 stops21h 56m
Frontier
Deal found 7/25![Frontier logo]()
$394
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/277:51 am
CUN
- STL
1 stop9h 59m
United Airlines
Mon 8/316:15 am
STL
- CUN
1 stop8h 22m
United Airlines
Deal found 7/24![United Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/105:22 pm
CUN
- STL
2 stops16h 50m
United Airlines
Mon 9/216:53 pm
STL
- CUN
2 stops15h 13m
United Airlines
Deal found 7/24![United Airlines logo]()
$402
This PocketFare deal was found by Cheapflights users on 7/26. 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 PocketFare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:40 am
MEX
- STL
1 stop9h 35m
Frontier
Tue 10/206:10 am
STL
- MEX
1 stop18h 00m
Frontier
Deal found 7/26![Frontier logo]()
$402
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/265:22 pm
CUN
- STL
1 stop16h 48m
United Airlines
Wed 9/211:15 am
STL
- CUN
1 stop8h 04m
United Airlines
Deal found 7/27![United Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/218:40 am
MEX
- STL
1 stop9h 33m
Multiple Airlines
Fri 8/286:17 pm
STL
- MEX
2 stops28h 58m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Thu 10/157:00 am
MEX
- STL
1 stop9h 46m
Multiple Airlines
Mon 10/1910:35 am
STL
- MEX
2 stops36h 40m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Thu 10/157:00 am
MEX
- STL
1 stop9h 46m
Multiple Airlines
Tue 10/2010:35 am
STL
- MEX
2 stops36h 40m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$433
Best flights from Mexico to St. LouisDiscover carefully curated flight deals from Mexico to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
Discover carefully curated flight deals from Mexico to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
This Orbitz deal was found by Cheapflights users on 7/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am
MEX
- STL
1 stop8h 31m
Frontier
Thu 9/1710:20 am
STL
- MEX
1 stop13h 25m
Frontier
Deal found 7/27![Frontier logo]()
$338
This Aeromexico deal was found by Cheapflights users on 7/25. 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.
Thu 8/273:22 pm
CUN
- STL
1 stop8h 36m
Aeromexico
Mon 8/316:00 am
STL
- CUN
1 stop8h 22m
Aeromexico
Deal found 7/25![Aeromexico logo]()
$393
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/241:43 pm
CUN
- STL
1 stop8h 47m
United Airlines
Mon 9/287:01 pm
STL
- CUN
2 stops15h 05m
United Airlines
Deal found 7/28![United Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Thu 9/106:20 am
MEX
- STL
2 stops29h 50m
Multiple Airlines
Thu 9/1710:20 am
STL
- MEX
1 stop13h 25m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$438
This Air Canada deal was found by Cheapflights users on 7/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:20 am
MTY
- STL
1 stop10h 02m
Air Canada
Thu 9/108:55 am
STL
- MTY
1 stop12h 25m
Air Canada
Deal found 7/26![Air Canada logo]()
$515
This Delta deal was found by Cheapflights users on 7/26. 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 10/151:10 pm
MEX
- STL
2 stops10h 34m
Delta
Tue 10/2012:28 pm
STL
- MEX
2 stops10h 52m
Delta
Deal found 7/26![Delta logo]()
$549
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/2012:50 pm
AGU
- STL
1 stop9h 52m
American Airlines
Fri 8/286:36 am
STL
- AGU
1 stop15h 51m
American Airlines
Deal found 7/29![American Airlines logo]()
$620
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/277:51 am
CUN
- STL
1 stop9h 59m
United Airlines
Mon 8/316:15 am
STL
- CUN
1 stop8h 22m
United Airlines
Deal found 7/24![United Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/101:43 pm
CUN
- STL
1 stop8h 47m
United Airlines
Mon 9/213:13 pm
STL
- CUN
1 stop20h 49m
United Airlines
Deal found 7/24![United Airlines logo]()
$402
This PocketFare deal was found by Cheapflights users on 7/25. 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 PocketFare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am
MEX
- STL
1 stop9h 46m
Frontier
Mon 10/198:10 pm
STL
- MEX
1 stop22h 20m
Frontier
Deal found 7/25![Frontier logo]()
$445
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/267:51 am
CUN
- STL
2 stops15h 08m
United Airlines
Wed 9/28:35 am
STL
- CUN
1 stop10h 44m
United Airlines
Deal found 7/27![United Airlines logo]()
$404
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:09 am
BJX
- STL
2 stops27h 01m
Frontier
Fri 9/118:10 pm
STL
- BJX
2 stops33h 46m
Frontier
Deal found 7/28![Frontier logo]()
$490
This Delta deal was found by Cheapflights users on 7/26. 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 12/179:00 am
MEX
- STL
2 stops11h 51m
Delta
Tue 1/59:00 am
STL
- MEX
2 stops12h 15m
Delta
Deal found 7/26![Delta logo]()
$549
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Sun 9/63:48 pm
MLM
- STL
2 stops47h 43m
Multiple Airlines
Sun 9/1310:20 am
STL
- MLM
1 stop10h 49m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$553
This Aeromexico deal was found by Cheapflights users on 7/24. 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.
Thu 8/278:02 am
BJX
- STL
2 stops14h 56m
Aeromexico
Mon 8/3112:52 pm
STL
- BJX
2 stops11h 25m
Aeromexico
Deal found 7/24![Aeromexico logo]()
$580
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 9/117:51 am
CUN
- STL
1 stop15h 47m
United Airlines
Fri 9/181:36 pm
STL
- CUN
1 stop23h 22m
United Airlines
Deal found 7/27![United Airlines logo]()
$440
This Delta deal was found by Cheapflights users on 7/28. 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 10/159:15 am
MEX
- STL
2 stops13h 39m
Delta
Mon 10/1910:14 am
STL
- MEX
2 stops10h 06m
Delta
Deal found 7/28![Delta logo]()
$549
This Justfly.com deal was found by Cheapflights users on 7/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:05 am
MEX
- STL
2 stops37h 10m
Frontier
Mon 11/98:10 pm
STL
- MEX
2 stops26h 00m
Frontier
Deal found 7/26![Frontier logo]()
$544
This Booking.com deal was found by Cheapflights users on 7/27. 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.
Wed 8/199:20 am
MTY
- STL
1 stop27h 42m
Air Canada
Sat 8/2212:10 pm
STL
- MTY
2 stops33h 10m
Air Canada
Deal found 7/27![Air Canada logo]()
$663
This Delta deal was found by Cheapflights users on 7/25. 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.
Wed 12/234:35 pm
MEX
- STL
1 stop7h 04m
Delta
Sat 1/27:20 am
STL
- MEX
2 stops9h 35m
Delta
Deal found 7/25![Delta logo]()
$577
This Delta deal was found by Cheapflights users on 7/24. 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 10/19:05 am
MEX
- STL
2 stops13h 37m
Delta
Fri 10/912:00 pm
STL
- MEX
2 stops11h 10m
Delta
Deal found 7/24![Delta logo]()
$578
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 9/13:52 pm
CZM
- STL
1 stop6h 35m
United Airlines
Sat 9/53:13 pm
STL
- CZM
1 stop23h 29m
United Airlines
Deal found 7/28![United Airlines logo]()
$530
This PocketFare deal was found by Cheapflights users on 7/27. 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 PocketFare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:12 pm
MTY
- STL
1 stop20h 22m
Frontier
Sun 10/256:10 am
STL
- MTY
1 stop16h 00m
Frontier
Deal found 7/27![Frontier logo]()
$613
This Delta deal was found by Cheapflights users on 7/24. 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 8/258:02 am
BJX
- STL
2 stops14h 19m
Delta
Mon 8/316:00 am
STL
- BJX
1 stop12h 10m
Delta
Deal found 7/24![Delta logo]()
$580
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 9/1912:19 pm
PVR
- STL
2 stops20h 53m
United Airlines
Wed 9/234:40 pm
STL
- PVR
2 stops19h 30m
United Airlines
Deal found 7/28![United Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 7/24. 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 9/812:16 pm
MTY
- STL
1 stop10h 26m
Delta
Tue 9/152:30 pm
STL
- MTY
2 stops9h 39m
Delta
Deal found 7/24![Delta logo]()
$591
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/173:52 pm
CZM
- STL
1 stop6h 38m
United Airlines
Thu 9/246:15 am
STL
- CZM
1 stop8h 27m
United Airlines
Deal found 7/28![United Airlines logo]()
$556
This United Airlines deal was found by Cheapflights users on 7/26. 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 9/312:19 pm
PVR
- STL
2 stops19h 20m
United Airlines
Thu 9/171:36 pm
STL
- PVR
2 stops22h 34m
United Airlines
Deal found 7/26![United Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/113:52 pm
CZM
- STL
2 stops20h 11m
United Airlines
Fri 9/185:30 pm
STL
- CZM
2 stops21h 12m
United Airlines
Deal found 7/28![United Airlines logo]()
$557
This Delta deal was found by Cheapflights users on 7/25. 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.
Wed 10/215:48 am
MTY
- STL
2 stops14h 35m
Delta
Sun 10/256:00 am
STL
- MTY
2 stops12h 54m
Delta
Deal found 7/25![Delta logo]()
$679
Last-minute flights from Mexico to St. LouisDiscover last-minute flight deals from Mexico to St. Louis. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from Mexico to St. Louis. Data last updated July 29, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Sun 8/168:45 pm
MEX
- STL
1 stop16h 38m
Multiple Airlines
Wed 8/196:45 pm
STL
- MEX
1 stop28h 00m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/218:40 am
MEX
- STL
1 stop9h 33m
Multiple Airlines
Fri 8/286:17 pm
STL
- MEX
2 stops28h 58m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 8/227:51 am
CUN
- STL
2 stops14h 09m
United Airlines
Sat 8/298:30 am
STL
- CUN
2 stops10h 49m
United Airlines
Deal found 7/25![United Airlines logo]()
$497
This Volaris deal was found by Cheapflights users on 7/27. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
MEX
- STL
1 stop8h 31m
Volaris
Sun 9/1310:20 am
STL
- MEX
1 stop13h 25m
Volaris
Deal found 7/27![Volaris logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 8/236:20 am
MEX
- STL
2 stops34h 02m
Multiple Airlines
Sun 9/1310:20 am
STL
- MEX
1 stop13h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$490
This Orbitz deal was found by Cheapflights users on 7/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am
MEX
- STL
1 stop8h 31m
Frontier
Thu 9/1710:20 am
STL
- MEX
1 stop13h 25m
Frontier
Deal found 7/27![Frontier logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/257:55 pm
MEX
- STL
2 stops43h 36m
Multiple Airlines
Thu 9/1710:20 am
STL
- MEX
1 stop13h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/267:51 am
CUN
- STL
2 stops15h 08m
United Airlines
Wed 9/28:35 am
STL
- CUN
1 stop10h 44m
United Airlines
Deal found 7/27![United Airlines logo]()
$404
This Aeromexico deal was found by Cheapflights users on 7/25. 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.
Thu 8/272:10 pm
CUN
- STL
1 stop9h 48m
Aeromexico
Mon 8/316:00 am
STL
- CUN
2 stops14h 32m
Aeromexico
Deal found 7/25![Aeromexico logo]()
$393
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/277:51 am
CUN
- STL
1 stop9h 59m
United Airlines
Mon 8/316:15 am
STL
- CUN
1 stop8h 22m
United Airlines
Deal found 7/24![United Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/3111:30 am
MTY
- STL
1 stop28h 01m
Multiple Airlines
Sun 9/65:27 pm
STL
- MTY
1 stop23h 53m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/3111:30 am
MTY
- STL
1 stop28h 01m
Multiple Airlines
Sat 9/56:45 pm
STL
- MTY
2 stops22h 35m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$456
One-way flights from Mexico to St. LouisSearch for one-way flight options from Mexico to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
Search for one-way flight options from Mexico to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/2510:00 am
PVR
- STL
3 stops54h 22m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Wed 8/2610:20 am
PVR
- STL
3 stops54h 02m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/282:34 pm
PVR
- STL
3 stops49h 48m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/186:00 am
MEX
- STL
3 stops58h 22m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Sat 8/224:32 pm
CUN
- STL
3 stops48h 50m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$217
This Volaris deal was found by Cheapflights users on 7/24. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:45 am
MEX
- STL
1 stop8h 07m
Volaris
Deal found 7/24![Volaris logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 8/187:14 pm
CUN
- STL
3 stops46h 08m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Wed 9/238:35 am
PVR
- STL
3 stops51h 35m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sat 8/2910:23 am
CUN
- STL
2 stops30h 59m
Frontier
Deal found 7/27![Frontier logo]()
$226
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:10 pm
CUN
- STL
Nonstop3h 05m
Southwest
Deal found 7/27![Southwest logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sun 9/271:51 pm
CUN
- STL
1 stop23h 19m
Frontier
Deal found 7/28![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 8/2710:00 am
PVR
- STL
2 stops53h 11m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$231
Find flight deals from Mexico to St. Louis
Keep the following information in mind while searching for Mexico to St. Louis flight deals. Data was last updated July 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $338 (Orbitz) |
One-way from | $191 (Kiwi.com) |
Popular in | April |
Cheapest in | May |
Average price | $611 |
Good round-trip deal | $550 or less |
Good one-way deal | $262 or less |
Cheapflights Fare Finder
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 July 29, 2026.
Use the filters below to find and compare flights from Mexico to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Mexico CitySt. Louis
MEX - STL
MEXSTL
Mexico City Benito Juarez
Tue 8/25
7:00 am-4:31 pm
1 stop8h 31m
Lambert-St Louis
Thu 9/17
10:20 am-10:45 pm
1 stop13h 25m
$338
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
Thu 8/27
3:22 pm-11:58 pm
1 stop8h 36m
Lambert-St Louis
Mon 8/31
6:00 am-2:22 pm
1 stop8h 22m
$393
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
Thu 9/24
1:43 pm-10:30 pm
1 stop8h 47m
Lambert-St Louis
Mon 9/28
7:01 pm-10:06 am
2 stops15h 05m
$393
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
Thu 8/27
7:51 am-5:50 pm
1 stop9h 59m
Lambert-St Louis
Mon 8/31
6:15 am-2:37 pm
1 stop8h 22m
$401
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
Thu 9/10
1:43 pm-10:30 pm
1 stop8h 47m
Lambert-St Louis
Mon 9/21
3:13 pm-12:02 pm
1 stop20h 49m
$402
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
Wed 8/26
7:51 am-10:59 pm
2 stops15h 08m
Lambert-St Louis
Wed 9/2
8:35 am-7:19 pm
1 stop10h 44m
$404
Mexico CitySt. Louis
MEX - STL
MEXSTL
Mexico City Benito Juarez
Thu 9/10
6:20 am-1:10 pm
2 stops29h 50m
Lambert-St Louis
Thu 9/17
10:20 am-10:45 pm
1 stop13h 25m
$438
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
Fri 9/11
7:51 am-11:38 pm
1 stop15h 47m
Lambert-St Louis
Fri 9/18
1:36 pm-12:58 pm
1 stop23h 22m
$440
Mexico CitySt. Louis
MEX - STL
MEXSTL
Mexico City Benito Juarez
Thu 10/15
7:00 am-5:46 pm
1 stop9h 46m
Lambert-St Louis
Mon 10/19
8:10 pm-5:30 pm
1 stop22h 20m
$445
LeónSt. Louis
BJX - STL
BJXSTL
León Del Bajio
Tue 9/8
9:09 am-1:10 pm
2 stops27h 01m
Lambert-St Louis
Fri 9/11
8:10 pm-4:56 am
2 stops33h 46m
$490
Showing 1-10 of 60 resultsSorted by cheapest first
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.
MEX-STL
MTY-STL
CUN-STL
AGU-STL
BJX-STL
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 Mexico to St. Louis
MX0-STL
MEX-STL
MTY-STL
CUN-STL
AGU-STL
What is the cheapest month to book a flight from Mexico to St. Louis?
Currently, May is the cheapest month in which you can book a flight from Mexico to St. Louis (average of $499). Flying from Mexico to St. Louis in March is currently the most expensive (average of $778). 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 July 29, 2026.
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.
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 July 29, 2026.
See what other customers who have flown with Delta,United Airlines, andFrontier from Mexico to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentElizabeth,Sep 2023
MEX - ATL
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentElizabeth,Sep 2023
MEX - ATL
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentElizabeth,Sep 2023
MEX - ATL
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentElizabeth,Sep 2023
MEX - ATL
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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.
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Alternative routes for Mexico to St. Louis
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Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Mexico to St. Louis by cabin class
Find flights from Mexico to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Mexico and St. Louis flights
Browse other Mexico and St. Louis flight options. Last updated on July 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 29, 2026.
Mexico to St. Louis flights
Consider these flights traveling from Mexico to St. Louis.
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 July 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$298 | Average$588 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$466 | Average$626 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$521 | Average$676 | FlexibilityNo cancel fee | On-timeN/A |