$125+ Cheap flights from St. Louis (STL) to Mexico
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
Nov 14 — Nov 211
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Mexico with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Mexico
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Cheapest flights from St. Louis to MexicoExplore the most affordable flight options available from St. Louis to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 15, 2026.
Explore the most affordable flight options available from St. Louis to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:59 pm -
1 stop20h 51m
Wed 11/185:50 am -
2 stops36h 49m
Deal found 10/14![Multiple Airlines logo]()
$353
This deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:30 am -
Nonstop3h 09m
Fri 10/3011:23 am -
Nonstop3h 15m
Deal found 10/13![Frontier logo]()
$364
This Mytrip deal was found by Cheapflights users on 10/10. 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.
Fri 11/136:34 pm -
2 stops17h 39m
Mon 11/167:00 am -
2 stops16h 16m
Deal found 10/10![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:59 pm -
1 stop20h 51m
Tue 11/175:50 am -
2 stops35h 52m
Deal found 10/14![Multiple Airlines logo]()
$369
This Priceline deal was found by Cheapflights users on 10/12. 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.
Tue 12/156:00 am -
1 stop17h 20m
Tue 1/126:45 am -
1 stop9h 42m
Deal found 10/12![Frontier logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:59 pm -
1 stop20h 51m
Wed 11/185:50 am -
2 stops36h 49m
Deal found 10/14![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:34 pm -
2 stops28h 21m
Mon 11/168:00 am -
1 stop11h 14m
Deal found 10/14![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:59 pm -
1 stop21h 29m
Sun 11/2210:18 am -
2 stops31h 22m
Deal found 10/14![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:18 pm -
1 stop24h 32m
Wed 11/185:50 am -
2 stops36h 49m
Deal found 10/14![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:34 pm -
2 stops28h 21m
Sat 11/148:00 am -
1 stop11h 14m
Deal found 10/14![Multiple Airlines logo]()
$393
This FlightHub deal was found by Cheapflights users on 10/12. 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.
Wed 12/26:13 pm -
1 stop25h 32m
Mon 12/77:55 pm -
1 stop20h 38m
Deal found 10/12![Frontier logo]()
$396
This Justfly.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:13 pm -
1 stop25h 32m
Mon 12/711:10 am -
1 stop13h 02m
Deal found 10/14![Frontier logo]()
$401
Best flights from St. Louis to MexicoDiscover carefully curated flight deals from St. Louis to Mexico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 15, 2026.
Discover carefully curated flight deals from St. Louis to Mexico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 15, 2026.
This Mytrip deal was found by Cheapflights users on 10/10. 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.
Fri 11/136:34 pm -
2 stops17h 39m
Mon 11/167:00 am -
2 stops16h 16m
Deal found 10/10![Multiple Airlines logo]()
$368
This FlightHub deal was found by Cheapflights users on 10/10. 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.
Thu 11/512:14 pm -
1 stop10h 31m
Mon 11/99:45 pm -
1 stop17h 01m
Deal found 10/10![Volaris logo]()
$467
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Mon 1/46:15 am -
1 stop6h 28m
Mon 1/112:11 pm -
1 stop7h 19m
Deal found 10/11![United Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 10/12. 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.
Fri 11/276:00 am -
1 stop6h 08m
Fri 12/41:14 pm -
2 stops9h 20m
Deal found 10/12![American Airlines logo]()
$502
This Delta deal was found by Cheapflights users on 10/12. 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 12/212:36 pm -
1 stop7h 32m
Wed 12/911:21 am -
2 stops13h 44m
Deal found 10/12![Delta logo]()
$526
This Southwest deal was found by Cheapflights users on 10/12. 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.
Sun 11/85:45 am -
1 stop6h 55m
Fri 11/132:30 pm -
Nonstop3h 15m
Deal found 10/12![Southwest logo]()
$536
This Justfly.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/32:47 pm -
1 stop30h 23m
Mon 12/711:10 am -
1 stop13h 02m
Deal found 10/14![Frontier logo]()
$572
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/273:54 pm -
2 stops23h 52m
Mon 2/12:00 pm -
2 stops24h 56m
Deal found 10/10![Alaska Airlines logo]()
$598
This Aeromexico deal was found by Cheapflights users on 10/10. 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.
Tue 1/199:00 am -
2 stops11h 51m
Tue 2/165:55 am -
2 stops17h 44m
Deal found 10/10![Aeromexico logo]()
$601
This Booking.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/244:05 pm -
1 stop22h 45m
Mon 11/302:45 pm -
1 stop23h 41m
Deal found 10/14![Air Canada logo]()
$635
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/67:59 pm -
1 stop21h 56m
Tue 11/108:44 pm -
2 stops20h 58m
Deal found 10/12![Multiple Airlines logo]()
$442
This Volaris deal was found by Cheapflights users on 10/12. 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.
Fri 11/206:00 am -
1 stop17h 20m
Tue 11/246:45 am -
1 stop9h 40m
Deal found 10/12![Volaris logo]()
$501
This Mytrip deal was found by Cheapflights users on 10/12. 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.
Thu 11/265:15 pm -
3 stops27h 25m
Thu 12/34:47 pm -
3 stops18h 10m
Deal found 10/12![Multiple Airlines logo]()
$458
This Southwest deal was found by Cheapflights users on 10/10. 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.
Fri 12/189:50 pm -
2 stops18h 10m
Wed 12/234:30 pm -
1 stop7h 20m
Deal found 10/10![Southwest logo]()
$537
This Delta deal was found by Cheapflights users on 10/11. 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.
Sat 12/52:33 pm -
1 stop5h 35m
Tue 12/812:26 pm -
2 stops12h 00m
Deal found 10/11![Delta logo]()
$571
This United Airlines deal was found by Cheapflights users on 10/12. 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 1/55:02 am -
1 stop9h 01m
Thu 1/142:11 pm -
1 stop7h 19m
Deal found 10/12![United Airlines logo]()
$573
This Volaris deal was found by Cheapflights users on 10/10. 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.
Fri 11/69:49 am -
1 stop12h 56m
Fri 11/138:00 am -
1 stop11h 14m
Deal found 10/10![Volaris logo]()
$525
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/269:09 am -
1 stop7h 17m
Thu 12/36:05 am -
2 stops29h 12m
Deal found 10/12![Multiple Airlines logo]()
$483
This American Airlines deal was found by Cheapflights users on 10/10. 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.
Tue 1/198:47 am -
1 stop5h 59m
Tue 2/167:24 am -
1 stop12h 52m
Deal found 10/10![American Airlines logo]()
$601
This FlightHub deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:04 pm -
2 stops25h 53m
Sun 11/2211:59 pm -
2 stops17h 41m
Deal found 10/13![Frontier logo]()
$602
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1612:36 pm -
1 stop7h 32m
Sun 12/2012:10 pm -
2 stops12h 45m
Deal found 10/14![Delta logo]()
$576
This Aeromexico deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:03 am -
2 stops11h 02m
Mon 12/72:10 pm -
1 stop9h 55m
Deal found 10/14![Aeromexico logo]()
$635
This Southwest deal was found by Cheapflights users on 10/11. 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.
Mon 10/265:25 am -
2 stops8h 45m
Sun 11/13:10 pm -
1 stop8h 40m
Deal found 10/11![Southwest logo]()
$592
This Volaris deal was found by Cheapflights users on 10/11. 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.
Tue 11/249:09 am -
1 stop13h 36m
Fri 11/2711:10 am -
1 stop12h 49m
Deal found 10/11![Volaris logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:59 pm -
1 stop22h 26m
Fri 11/137:34 pm -
2 stops23h 40m
Deal found 10/13![Multiple Airlines logo]()
$496
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Mon 11/96:50 pm -
2 stops18h 05m
Fri 11/201:57 pm -
1 stop7h 43m
Deal found 10/12![United Airlines logo]()
$605
This Delta deal was found by Cheapflights users on 10/10. 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.
Sat 1/99:00 am -
1 stop6h 30m
Wed 1/1312:05 pm -
2 stops12h 13m
Deal found 10/10![Delta logo]()
$576
This American Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/183:45 pm -
1 stop19h 16m
Mon 1/256:00 am -
1 stop8h 55m
Deal found 10/12![American Airlines logo]()
$642
This Volaris deal was found by Cheapflights users on 10/11. 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.
Fri 11/206:00 am -
1 stop17h 20m
Mon 11/2311:10 am -
1 stop12h 49m
Deal found 10/11![Volaris logo]()
$540
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Mon 11/25:00 am -
2 stops10h 32m
Tue 11/33:39 pm -
2 stops25h 26m
Deal found 10/12![United Airlines logo]()
$607
Last-minute flights from St. Louis to MexicoDiscover last-minute flight deals from St. Louis to Mexico. Data last updated October 15, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Mexico. Data last updated October 15, 2026 and is based on user searches.
This deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:30 am -
Nonstop3h 09m
Fri 10/3011:23 am -
Nonstop3h 15m
Deal found 10/13![Frontier logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:59 pm -
1 stop20h 51m
Wed 11/185:50 am -
2 stops36h 49m
Deal found 10/14![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:59 pm -
1 stop20h 51m
Wed 11/185:50 am -
2 stops36h 49m
Deal found 10/14![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:59 pm -
1 stop20h 51m
Tue 11/175:50 am -
2 stops35h 52m
Deal found 10/14![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:34 pm -
2 stops28h 21m
Mon 11/168:00 am -
1 stop11h 14m
Deal found 10/14![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:34 pm -
2 stops28h 21m
Fri 11/2011:10 am -
1 stop12h 49m
Deal found 10/14![Multiple Airlines logo]()
$393
This Frontier deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:14 pm -
1 stop10h 31m
Thu 11/1911:10 am -
1 stop12h 06m
Deal found 10/14![Frontier logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:18 pm -
1 stop24h 32m
Wed 11/185:50 am -
2 stops36h 49m
Deal found 10/14![Multiple Airlines logo]()
$391
This Mytrip deal was found by Cheapflights users on 10/10. 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.
Fri 11/136:34 pm -
2 stops17h 39m
Mon 11/167:00 am -
2 stops16h 16m
Deal found 10/10![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:59 pm -
1 stop21h 29m
Sun 11/2210:18 am -
2 stops31h 22m
Deal found 10/14![Multiple Airlines logo]()
$390
This Mytrip deal was found by Cheapflights users on 10/12. 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.
Thu 11/265:15 pm -
3 stops27h 25m
Thu 12/34:47 pm -
2 stops18h 30m
Deal found 10/12![Multiple Airlines logo]()
$408
This FlightHub deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:15 pm -
1 stop29h 30m
Tue 12/19:00 am -
1 stop15h 12m
Deal found 10/14![Frontier logo]()
$410
One-way flights from St. Louis to MexicoSearch for one-way flight options from St. Louis to Mexico. Find affordable one-way fares based on user searches. Data last updated October 15, 2026.
Search for one-way flight options from St. Louis to Mexico. Find affordable one-way fares based on user searches. Data last updated October 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 1/117:02 pm -
2 stops45h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 12/412:02 pm -
2 stops37h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 11/136:34 pm -
3 stops44h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 11/116:34 pm -
3 stops44h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:54 pm -
1 stop20h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$159
This Priceline deal was found by Cheapflights users on 10/12. 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.
Tue 12/156:00 am -
1 stop15h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Frontier logo]()
$160
This Travelocity deal was found by Cheapflights users on 10/12. 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.
Wed 12/96:00 am -
1 stop10h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Frontier logo]()
$161
This Priceline deal was found by Cheapflights users on 10/12. 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.
Wed 12/96:00 am -
1 stop17h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 11/236:35 pm -
3 stops50h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$162
This FlightHub deal was found by Cheapflights users on 10/12. 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 12/86:00 am -
1 stop17h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 12/912:02 pm -
3 stops32h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/26:44 pm -
3 stops48h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Multiple Airlines logo]()
$166
Find flight deals from St. Louis to Mexico
Keep the following information in mind while searching for St. Louis to Mexico flight deals. Data was last updated October 15, 2026.
Round-trip from | $334 (Kiwi.com) |
|---|---|
One-way from | $125 (Kiwi.com) |
Good round-trip deal | $553 or less |
Good one-way deal | $240 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Mexico 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 7,457,451 searches. Data last updated October 15, 2026.
Use the filters below to find and compare flights from St. Louis to Mexico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisMonterrey
STL Lambert-St Louis - MTY Monterrey Gen Mariano Escobedo
STLMTY
Lambert-St Louis
Tue 12/15
6:00 am-9:13 pm
1 stop15h 13m
Monterrey Gen Mariano Escobedo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$160
St. LouisGuadalajara
STL Lambert-St Louis - GDL Guadalajara Miguel Hidal
STLGDL
Lambert-St Louis
Mon 11/23
6:35 pm-8:40 pm
3 stops50h 05m
Guadalajara Miguel Hidal
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$162
St. LouisMonterrey
STL Lambert-St Louis - MTY Monterrey Gen Mariano Escobedo
STLMTY
Lambert-St Louis
Mon 11/16
7:59 pm-6:25 pm
1 stop22h 26m
Monterrey Gen Mariano Escobedo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$173
St. LouisMexico City
STL Lambert-St Louis - MEX Mexico City Benito Juarez
STLMEX
Lambert-St Louis
Fri 11/6
6:34 pm-10:55 pm
2 stops28h 21m
Mexico City Benito Juarez
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
St. LouisMorelia
STL Lambert-St Louis - MLM Morelia
STLMLM
Lambert-St Louis
Thu 11/26
5:15 pm-4:57 pm
2 stops23h 42m
Morelia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$191
St. LouisMexico City
STL Lambert-St Louis - NLU Mexico City Felipe Ángeles Intl
STLNLU
Lambert-St Louis
Mon 11/2
2:00 pm-9:17 am
3 stops43h 17m
Mexico City Felipe Ángeles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$196
St. LouisMonterrey
STL Lambert-St Louis - MTY Monterrey Gen Mariano Escobedo
STLMTY
Lambert-St Louis
Fri 10/23
2:00 pm-7:31 am
3 stops42h 31m
Monterrey Gen Mariano Escobedo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$198
St. LouisMexico City
STL Lambert-St Louis - NLU Mexico City Felipe Ángeles Intl
STLNLU
Lambert-St Louis
Wed 11/4
6:44 pm-2:47 pm
3 stops20h 03m
Mexico City Felipe Ángeles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$198
St. LouisSan José del Cabo
STL Lambert-St Louis - SJD San José del Cabo Los Cabos
STLSJD
Lambert-St Louis
Sun 1/17
7:20 am-2:00 pm
1 stop7h 40m
San José del Cabo Los Cabos
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$205
St. LouisSan José del Cabo
STL Lambert-St Louis - SJD San José del Cabo Los Cabos
STLSJD
Lambert-St Louis
Mon 11/9
5:00 am-2:32 pm
2 stops10h 32m
San José del Cabo Los Cabos
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$205
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Mexico
Have a flexible travel schedule? Discover the best time to fly to Mexico from St. Louis with our price prediction graph.
STL-GDL
STL-MEX
STL-SJD
STL-CUN
STL-PVR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Mexico
STL-MX0
STL-GDL
STL-MEX
STL-SJD
STL-CUN
What is the cheapest month to book a flight from St. Louis to Mexico?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Mexico (average of $533). Flying from St. Louis to Mexico in September is currently the most expensive (average of $666). 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 STL to MX?
Find hourly flight availability from St. Louis to Mexico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 15, 2026.
When flying from St. Louis to Mexico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How far ahead should I book a flight from St. Louis to Mexico?
The best time to book flights from St. Louis to Mexico is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Mexico
Get insights into the airlines that provide service to Mexico. 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 Mexico. Reviews last updated October 15, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican Airlines from St. Louis to Mexico. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Mexico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Mexico
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Complete your trip
Complete your trip to Mexico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Mexico by cabin class
Find flights from St. Louis to Mexico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Mexico flights
Browse other St. Louis and Mexico flight options. Last updated on October 15, 2026.
Popular flight searches
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St. Louis to Mexico flights
Consider these flights traveling from St. Louis to Mexico.
Fly to Mexico regions
Consider these flights traveling to Mexico regions.
Top 10 airlines flying from St. Louis to Mexico
Discover the top 10 airlines that operate flights from St. Louis to Mexico. 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 7,457,451 searches. Data last updated October 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$520 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$184 | Average$437 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$196 | Average$477 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$230 | Average$475 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$259 | Average$526 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$371 | Average$644 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$398 | Average$682 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$404 | Average$545 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$459 | Average$668 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$527 | Average$590 | FlexibilityNo cancel fee | On-time75% |