$141+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — STL
juin 1 — juin 81
Round-trip
1 adult, Economy
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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 mai 2, 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 mai 2, 2026.
This Aeromexico deal was found by Cheapflights users on 4/30. 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. 6/2512:35 pm
CUN
- STL
1 stop11h 21m
Aeromexico
lun. 6/298:00 am
STL
- CUN
1 stop6h 39m
Aeromexico
Deal found 4/30![Aeromexico logo]()
$309
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/2512:55 pm
CUN
- STL
1 stop23h 16m
United Airlines
lun. 6/296:00 am
STL
- CUN
1 stop7h 10m
United Airlines
Deal found 4/29![United Airlines logo]()
$310
This Priceline deal was found by Cheapflights users on 4/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/14:07 pm
CUN
- STL
1 stop14h 43m
Frontier
dim. 5/36:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 4/27![Frontier logo]()
$338
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/78:00 am
CUN
- STL
1 stop8h 15m
Delta
lun. 5/187:05 am
STL
- CUN
1 stop13h 11m
Delta
Deal found 4/29![Delta logo]()
$352
This Priceline deal was found by Cheapflights users on 4/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/133:35 pm
CUN
- STL
1 stop27h 18m
Frontier
sam. 6/207:38 pm
STL
- CUN
1 stop17h 10m
Frontier
Deal found 4/29![Frontier logo]()
$360
This Priceline deal was found by Cheapflights users on 5/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/73:22 pm
CUN
- STL
1 stop17h 33m
Frontier
dim. 5/176:55 pm
STL
- CUN
1 stop19h 12m
Frontier
Deal found 5/1![Frontier logo]()
$364
This Expedia deal was found by Cheapflights users on 5/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 6/1711:11 am
CUN
- STL
Nonstop3h 26m
Frontier
mer. 6/248:08 pm
STL
- CUN
1 stop16h 40m
Frontier
Deal found 5/2![Frontier logo]()
$370
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/75:22 pm
CUN
- STL
2 stops15h 17m
United Airlines
lun. 5/187:45 am
STL
- CUN
1 stop6h 41m
United Airlines
Deal found 4/29![United Airlines logo]()
$373
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/3011:05 am
MEX
- STL
1 stop12h 04m
Frontier
sam. 8/293:33 pm
STL
- MEX
1 stop8h 12m
Frontier
Deal found 4/28![Frontier logo]()
$387
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/2511:02 am
CUN
- STL
1 stop7h 16m
Frontier
lun. 6/296:30 am
STL
- CUN
Nonstop3h 19m
Frontier
Deal found 4/28![Frontier logo]()
$389
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 6/1011:02 am
CUN
- STL
1 stop7h 16m
Frontier
mer. 6/176:30 am
STL
- CUN
Nonstop3h 19m
Frontier
Deal found 4/28![Frontier logo]()
$392
This Frontier deal was found by Cheapflights users on 4/30. 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. 8/258:40 am
MEX
- STL
1 stop9h 43m
Frontier
mer. 8/263:33 pm
STL
- MEX
1 stop8h 12m
Frontier
Deal found 4/30![Frontier logo]()
$421
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 mai 2, 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 mai 2, 2026.
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/2512:11 pm
CUN
- STL
1 stop9h 15m
United Airlines
lun. 6/294:48 pm
STL
- CUN
2 stops21h 30m
United Airlines
Deal found 4/29![United Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 4/28. 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.
mer. 6/1012:39 pm
CUN
- STL
2 stops11h 17m
Delta
mer. 6/171:39 pm
STL
- CUN
1 stop6h 46m
Delta
Deal found 4/28![Delta logo]()
$311
This Expedia deal was found by Cheapflights users on 5/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/133:35 pm
CUN
- STL
1 stop27h 18m
Frontier
sam. 6/207:38 pm
STL
- CUN
1 stop17h 10m
Frontier
Deal found 5/1![Frontier logo]()
$381
This Air Canada deal was found by Cheapflights users on 4/30. 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.
dim. 6/141:45 pm
CUN
- STL
2 stops22h 21m
Air Canada
dim. 6/211:20 pm
STL
- CUN
2 stops20h 30m
Air Canada
Deal found 4/30![Air Canada logo]()
$412
This CheapOair deal was found by Cheapflights users on 4/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/1611:05 am
MEX
- STL
1 stop12h 04m
Multiple Airlines
dim. 6/211:20 pm
STL
- MEX
1 stop11h 35m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$440
This Volaris deal was found by Cheapflights users on 4/29. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/611:05 am
MEX
- STL
1 stop11h 54m
Volaris
lun. 8/103:34 pm
STL
- MEX
1 stop8h 11m
Volaris
Deal found 4/29![Volaris logo]()
$520
This American Airlines deal was found by Cheapflights users on 5/2. 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. 6/1611:58 am
MLM
- STL
1 stop11h 01m
American Airlines
mar. 6/239:42 am
STL
- MLM
1 stop26h 21m
American Airlines
Deal found 5/2![American Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 5/2. 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. 6/178:45 am
CUN
- STL
1 stop14h 50m
United Airlines
mer. 6/246:00 am
STL
- CUN
1 stop8h 26m
United Airlines
Deal found 5/2![United Airlines logo]()
$311
This Aeromexico deal was found by Cheapflights users on 4/30. 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.
ven. 5/2912:08 pm
BJX
- STL
2 stops10h 51m
Aeromexico
lun. 6/16:00 am
STL
- BJX
2 stops12h 14m
Aeromexico
Deal found 4/30![Aeromexico logo]()
$703
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/2511:11 am
CUN
- STL
Nonstop3h 26m
Frontier
lun. 6/296:30 am
STL
- CUN
Nonstop3h 19m
Frontier
Deal found 4/28![Frontier logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
lun. 5/2511:30 am
MTY
- STL
1 stop26h 18m
Multiple Airlines
mer. 6/35:27 pm
STL
- MTY
2 stops31h 18m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 4/28. 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.
mer. 6/103:52 pm
CZM
- STL
2 stops15h 49m
United Airlines
mer. 6/178:35 am
STL
- CZM
1 stop7h 07m
United Airlines
Deal found 4/28![United Airlines logo]()
$495
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/191:00 pm
BJX
- STL
2 stops9h 37m
Delta
mar. 8/256:00 am
STL
- BJX
1 stop13h 10m
Delta
Deal found 4/27![Delta logo]()
$548
This Volaris deal was found by Cheapflights users on 5/1. 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.
lun. 6/158:40 am
MEX
- STL
1 stop9h 13m
Volaris
lun. 6/226:30 am
STL
- MEX
1 stop11h 10m
Volaris
Deal found 5/1![Volaris logo]()
$563
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/207:25 am
BJX
- STL
2 stops15h 12m
Delta
mar. 8/2511:51 am
STL
- BJX
1 stop7h 19m
Delta
Deal found 4/27![Delta logo]()
$548
This United Airlines deal was found by Cheapflights users on 5/2. 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. 6/173:52 pm
CZM
- STL
1 stop17h 15m
United Airlines
mer. 6/248:35 am
STL
- CZM
1 stop7h 07m
United Airlines
Deal found 5/2![United Airlines logo]()
$531
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/187:25 am
BJX
- STL
2 stops15h 12m
Delta
jeu. 8/201:30 pm
STL
- BJX
2 stops9h 09m
Delta
Deal found 4/27![Delta logo]()
$548
This United Airlines deal was found by Cheapflights users on 4/28. 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.
ven. 9/43:52 pm
CZM
- STL
2 stops15h 45m
United Airlines
sam. 9/126:55 pm
STL
- CZM
2 stops20h 47m
United Airlines
Deal found 4/28![United Airlines logo]()
$532
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/1111:58 am
MLM
- STL
1 stop11h 01m
American Airlines
jeu. 6/187:24 pm
STL
- MLM
1 stop16h 39m
American Airlines
Deal found 4/27![American Airlines logo]()
$767
This Delta deal was found by Cheapflights users on 4/30. 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.
mar. 6/303:10 pm
MEX
- STL
1 stop8h 33m
Delta
jeu. 7/99:24 am
STL
- MEX
2 stops13h 41m
Delta
Deal found 4/30![Delta logo]()
$578
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/133:52 pm
CZM
- STL
1 stop5h 53m
United Airlines
sam. 6/205:41 pm
STL
- CZM
2 stops22h 01m
United Airlines
Deal found 4/29![United Airlines logo]()
$538
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
jeu. 6/113:45 pm
MLM
- STL
2 stops25h 33m
Multiple Airlines
jeu. 6/186:30 am
STL
- MLM
1 stop13h 34m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$718
This Delta deal was found by Cheapflights users on 4/30. 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.
jeu. 8/66:45 am
MEX
- STL
2 stops12h 52m
Delta
lun. 8/107:20 am
STL
- MEX
2 stops9h 00m
Delta
Deal found 4/30![Delta logo]()
$578
This United Airlines deal was found by Cheapflights users on 4/28. 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.
jeu. 5/141:55 pm
PVR
- STL
1 stop26h 02m
United Airlines
mar. 5/196:00 am
STL
- PVR
1 stop6h 10m
United Airlines
Deal found 4/28![United Airlines logo]()
$539
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 7/26:45 am
MEX
- STL
2 stops14h 33m
Delta
lun. 7/66:00 am
STL
- MEX
2 stops10h 20m
Delta
Deal found 4/27![Delta logo]()
$579
This United Airlines deal was found by Cheapflights users on 4/27. 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.
mer. 9/26:25 am
AGU
- STL
1 stop6h 43m
United Airlines
dim. 9/68:30 pm
STL
- AGU
2 stops16h 29m
United Airlines
Deal found 4/27![United Airlines logo]()
$564
This United Airlines deal was found by Cheapflights users on 4/27. 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.
mar. 8/1811:47 am
BJX
- STL
1 stop21h 22m
United Airlines
ven. 8/216:14 am
STL
- BJX
1 stop8h 29m
United Airlines
Deal found 4/27![United Airlines logo]()
$579
This Delta deal was found by Cheapflights users on 5/1. 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.
mer. 10/2112:35 pm
MTY
- STL
2 stops10h 04m
Delta
dim. 10/259:00 am
STL
- MTY
2 stops10h 58m
Delta
Deal found 5/1![Delta logo]()
$696
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 6/75:00 am
BJX
- STL
1 stop11h 42m
United Airlines
mar. 7/146:14 am
STL
- BJX
1 stop8h 29m
United Airlines
Deal found 4/29![United Airlines logo]()
$581
This Aeromexico deal was found by Cheapflights users on 5/2. 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.
mer. 6/174:02 pm
CZM
- STL
2 stops30h 54m
Aeromexico
mer. 6/2410:51 am
STL
- CZM
2 stops28h 49m
Aeromexico
Deal found 5/2![Aeromexico logo]()
$1,348
Last-minute flights from Mexico to St. LouisDiscover last-minute flight deals from Mexico to St. Louis. Data last updated mai 2, 2026 and is based on user searches.
Discover last-minute flight deals from Mexico to St. Louis. Data last updated mai 2, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 4/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/14:07 pm
CUN
- STL
1 stop14h 43m
Frontier
dim. 5/36:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 4/27![Frontier logo]()
$338
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/78:00 am
CUN
- STL
1 stop8h 15m
Delta
lun. 5/187:05 am
STL
- CUN
1 stop13h 11m
Delta
Deal found 4/29![Delta logo]()
$352
This Priceline deal was found by Cheapflights users on 5/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/73:22 pm
CUN
- STL
1 stop17h 33m
Frontier
dim. 5/176:55 pm
STL
- CUN
1 stop19h 12m
Frontier
Deal found 5/1![Frontier logo]()
$364
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/75:22 pm
CUN
- STL
2 stops15h 17m
United Airlines
lun. 5/187:45 am
STL
- CUN
1 stop6h 41m
United Airlines
Deal found 4/29![United Airlines logo]()
$373
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 6/1011:02 am
CUN
- STL
1 stop7h 16m
Frontier
mer. 6/176:30 am
STL
- CUN
Nonstop3h 19m
Frontier
Deal found 4/28![Frontier logo]()
$392
This Priceline deal was found by Cheapflights users on 4/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/133:35 pm
CUN
- STL
1 stop27h 18m
Frontier
sam. 6/207:38 pm
STL
- CUN
1 stop17h 10m
Frontier
Deal found 4/29![Frontier logo]()
$360
This Travelocity deal was found by Cheapflights users on 4/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/1611:05 am
MEX
- STL
1 stop12h 04m
Multiple Airlines
dim. 6/211:20 pm
STL
- MEX
1 stop11h 35m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$429
This Expedia deal was found by Cheapflights users on 5/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 6/1711:11 am
CUN
- STL
Nonstop3h 26m
Frontier
mer. 6/248:08 pm
STL
- CUN
1 stop16h 40m
Frontier
Deal found 5/2![Frontier logo]()
$370
This Aeromexico deal was found by Cheapflights users on 4/30. 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. 6/2512:35 pm
CUN
- STL
1 stop11h 21m
Aeromexico
lun. 6/298:00 am
STL
- CUN
1 stop6h 39m
Aeromexico
Deal found 4/30![Aeromexico logo]()
$309
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/2512:55 pm
CUN
- STL
1 stop23h 16m
United Airlines
lun. 6/296:00 am
STL
- CUN
1 stop7h 10m
United Airlines
Deal found 4/29![United Airlines logo]()
$310
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/2511:02 am
CUN
- STL
1 stop7h 16m
Frontier
lun. 6/296:30 am
STL
- CUN
Nonstop3h 19m
Frontier
Deal found 4/28![Frontier logo]()
$389
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/3011:05 am
MEX
- STL
1 stop12h 04m
Frontier
sam. 8/293:33 pm
STL
- MEX
1 stop8h 12m
Frontier
Deal found 4/28![Frontier logo]()
$387
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 mai 2, 2026.
Search for one-way flight options from Mexico to St. Louis. Find affordable one-way fares based on user searches. Data last updated mai 2, 2026.
This Frontier deal was found by Cheapflights users on 4/30. 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.
sam. 5/2311:05 am
CUN
- STL
1 stop8h 26m
Frontier
Deal found 4/30![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
jeu. 6/2511:02 am
CUN
- STL
1 stop7h 16m
Frontier
Deal found 4/27![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
sam. 6/2711:02 am
CUN
- STL
1 stop7h 32m
Frontier
Deal found 4/27![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 4/30. 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. 5/2610:19 am
CUN
- STL
2 stops22h 36m
Frontier
Deal found 4/30![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
dim. 5/243:39 pm
CUN
- STL
2 stops17h 16m
Frontier
Deal found 4/30![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
mer. 5/271:14 pm
CUN
- STL
2 stops28h 19m
Frontier
Deal found 4/28![Frontier logo]()
$187
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 6/2412:36 pm
CUN
- STL
1 stop8h 03m
Delta
Deal found 4/29![Delta logo]()
$193
This Delta deal was found by Cheapflights users on 4/28. 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.
jeu. 5/2811:10 am
CUN
- STL
1 stop12h 49m
Delta
Deal found 4/28![Delta logo]()
$194
This Trip.com deal was found by Cheapflights users on 4/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 6/1911:02 am
CUN
- STL
1 stop7h 16m
Frontier
Deal found 4/27![Frontier logo]()
$195
This Aeromexico deal was found by Cheapflights users on 4/29. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/287:00 am
CUN
- STL
2 stops14h 38m
Aeromexico
Deal found 4/29![Aeromexico logo]()
$197
This Delta deal was found by Cheapflights users on 5/1. 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.
mar. 6/3012:36 pm
CUN
- STL
2 stops21h 52m
Delta
Deal found 5/1![Delta logo]()
$198
This United Airlines deal was found by Cheapflights users on 4/27. 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.
jeu. 6/252:49 pm
CUN
- STL
2 stops21h 22m
United Airlines
Deal found 4/27![United Airlines logo]()
$200
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 mai 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (Aeromexico) |
One-way from | $141 (Frontier) |
Popular in | April |
Cheapest in | May |
Average price | $498 |
Good round-trip deal | $397 or less |
Good one-way deal | $284 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 mai 2, 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
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
jeu. 6/25
12:11 pm-9:26 pm
1 stop9h 15m
Lambert-St Louis
lun. 6/29
4:48 pm-2:18 pm
2 stops21h 30m
$310
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
mer. 6/10
12:39 pm-11:56 pm
2 stops11h 17m
Lambert-St Louis
mer. 6/17
1:39 pm-8:25 pm
1 stop6h 46m
$311
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
mer. 6/17
8:45 am-11:35 pm
1 stop14h 50m
Lambert-St Louis
mer. 6/24
6:00 am-2:26 pm
1 stop8h 26m
$311
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
sam. 6/13
3:35 pm-6:53 pm
1 stop27h 18m
Lambert-St Louis
sam. 6/20
7:38 pm-12:48 pm
1 stop17h 10m
$381
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
dim. 6/14
1:45 pm-12:06 pm
2 stops22h 21m
Lambert-St Louis
dim. 6/21
1:20 pm-9:50 am
2 stops20h 30m
$412
Quickest round-trip
CancúnSt. Louis
CUN - STL
CUNSTL
Cancun
jeu. 6/25
11:11 am-2:37 pm
Nonstop3h 26m
Lambert-St Louis
lun. 6/29
6:30 am-9:49 am
Nonstop3h 19m
$420
Mexico CitySt. Louis
MEX - STL
MEXSTL
Mexico City Benito Juarez
mar. 6/16
11:05 am-12:09 am
1 stop12h 04m
Lambert-St Louis
dim. 6/21
1:20 pm-11:55 pm
1 stop11h 35m
$440
MonterreySt. Louis
MTY - STL
MTYSTL
Monterrey Gen Mariano Escobedo
lun. 5/25
11:30 am-2:48 pm
1 stop26h 18m
Lambert-St Louis
mer. 6/3
5:27 pm-11:45 pm
2 stops31h 18m
$476
CozumelSt. Louis
CZM - STL
CZMSTL
Cozumel
mer. 6/10
3:52 pm-8:41 am
2 stops15h 49m
Lambert-St Louis
mer. 6/17
8:35 am-2:42 pm
1 stop7h 07m
$495
Mexico CitySt. Louis
MEX - STL
MEXSTL
Mexico City Benito Juarez
jeu. 8/6
11:05 am-11:59 pm
1 stop11h 54m
Lambert-St Louis
lun. 8/10
3:34 pm-10:45 pm
1 stop8h 11m
$520
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.
CUN-STL
MEX-STL
MLM-STL
BJX-STL
MTY-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
CUN-STL
MEX-STL
MLM-STL
BJX-STL
What is the cheapest month to book a flight from Mexico to St. Louis?
Currently, September is the cheapest month in which you can book a flight from Mexico to St. Louis (average of $200). Flying from Mexico to St. Louis in October is currently the most expensive (average of $506). 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 mai 2, 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 mai 2, 2026.
See what other customers who have flown with United Airlines 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.
Crew
8.1
Overall
7.4
Boarding
7.7
Entertainment
7.1
Comfort
7.3
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Crew
8.1
Overall
7.4
Boarding
7.7
Entertainment
7.1
Comfort
7.3
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
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
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
Browse thousands of different 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 mai 2, 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 mai 2, 2026.
Mexico to St. Louis flights
Consider these flights traveling from Mexico to St. Louis.
Top airline flying from Mexico to St. Louis
Discover the top airline 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 mai 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$466 | Average$607 | FlexibilityNo cancel fee | On-time69% |