$127+ Cheap flights from Mexico to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — STL
Oct 15 — Oct 221
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
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 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 September 15, 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 September 15, 2026.
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:20 pm -
1 stop29h 21m
Mon 10/198:55 am -
1 stop24h 55m
Deal found 9/14![Air Canada logo]()
$368
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:08 am -
Nonstop3h 17m
Mon 10/266:30 am -
Nonstop3h 09m
Deal found 9/10![Frontier logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/98:45 pm -
1 stop16h 40m
Mon 10/126:35 pm -
2 stops28h 40m
Deal found 9/11![Multiple Airlines logo]()
$381
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:55 pm -
1 stop18h 51m
Mon 11/912:14 pm -
1 stop10h 31m
Deal found 9/11![Frontier logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 10/38:40 am -
1 stop9h 37m
Wed 10/72:29 pm -
2 stops30h 16m
Deal found 9/11![Multiple Airlines logo]()
$391
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:50 pm -
1 stop25h 36m
Mon 12/74:05 pm -
1 stop20h 50m
Deal found 9/14![Air Canada logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/296:01 am -
2 stops34h 39m
Thu 11/512:14 pm -
1 stop28h 12m
Deal found 9/14![Multiple Airlines logo]()
$409
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop8h 23m
Wed 11/44:05 pm -
1 stop17h 35m
Deal found 9/13![Air Canada logo]()
$418
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/2212:40 pm -
2 stops11h 14m
Mon 10/2610:14 am -
1 stop9h 41m
Deal found 9/10![Delta logo]()
$430
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:51 am -
1 stop6h 19m
Mon 10/197:01 pm -
2 stops24h 18m
Deal found 9/14![United Airlines logo]()
$447
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am -
1 stop8h 58m
Mon 10/195:53 pm -
2 stops17h 52m
Deal found 9/10![Frontier logo]()
$450
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 11/48:40 am -
2 stops26h 39m
Sun 11/812:14 pm -
1 stop10h 31m
Deal found 9/13![Multiple Airlines logo]()
$467
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 September 15, 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 September 15, 2026.
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:20 pm -
1 stop29h 21m
Mon 10/198:55 am -
1 stop24h 55m
Deal found 9/14![Air Canada logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:45 pm -
1 stop16h 40m
Mon 10/126:35 pm -
2 stops28h 40m
Deal found 9/15![Multiple Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/2212:40 pm -
2 stops11h 14m
Mon 10/2610:14 am -
1 stop9h 41m
Deal found 9/10![Delta logo]()
$430
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:51 am -
1 stop6h 19m
Mon 10/197:01 pm -
2 stops24h 18m
Deal found 9/14![United Airlines logo]()
$447
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am -
1 stop8h 58m
Mon 10/195:53 pm -
2 stops17h 52m
Deal found 9/10![Frontier logo]()
$450
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop8h 23m
Wed 11/44:05 pm -
1 stop17h 35m
Deal found 9/13![Air Canada logo]()
$418
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:52 pm -
1 stop6h 38m
Sat 10/2411:35 am -
2 stops27h 07m
Deal found 9/10![United Airlines logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 11/47:00 am -
1 stop28h 19m
Mon 11/912:14 pm -
1 stop10h 31m
Deal found 9/13![Multiple Airlines logo]()
$512
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/29:54 am -
2 stops10h 55m
Tue 2/96:00 am -
2 stops12h 21m
Deal found 9/13![Delta logo]()
$533
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 12/184:50 pm -
2 stops29h 18m
Mon 12/285:08 pm -
2 stops21h 34m
Deal found 9/12![United Airlines logo]()
$514
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Wed 11/47:00 am -
1 stop28h 19m
Mon 11/912:14 pm -
1 stop10h 31m
Deal found 9/10![Frontier logo]()
$588
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 11/184:50 pm -
2 stops29h 50m
Mon 11/306:15 am -
1 stop8h 27m
Deal found 9/11![United Airlines logo]()
$516
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/277:07 am -
1 stop8h 21m
Tue 11/36:00 am -
1 stop8h 44m
Deal found 9/11![Delta logo]()
$612
This Justfly.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/211:14 pm -
2 stops40h 20m
Mon 10/126:35 pm -
2 stops26h 48m
Deal found 9/14![Frontier logo]()
$625
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:52 pm -
1 stop6h 38m
Sat 10/241:25 pm -
2 stops25h 17m
Deal found 9/14![United Airlines logo]()
$528
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/146:11 am -
2 stops28h 20m
Fri 10/165:53 pm -
1 stop6h 39m
Deal found 9/12![Multiple Airlines logo]()
$658
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:31 pm -
2 stops18h 59m
Mon 12/76:55 pm -
2 stops18h 11m
Deal found 9/14![United Airlines logo]()
$530
This Frontier deal was found by Cheapflights users on 9/14. 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 10/126:00 am -
2 stops16h 13m
Fri 10/165:53 pm -
2 stops15h 55m
Deal found 9/14![Frontier logo]()
$669
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/22:03 pm -
1 stop29h 20m
Tue 2/95:25 am -
1 stop8h 02m
Deal found 9/13![United Airlines logo]()
$533
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am -
1 stop9h 58m
Sun 11/11:28 pm -
2 stops16h 30m
Deal found 9/10![Frontier logo]()
$677
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/812:19 pm -
2 stops30h 22m
Mon 10/129:04 am -
2 stops27h 06m
Deal found 9/14![United Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/277:00 am -
2 stops28h 38m
Tue 11/311:00 am -
1 stop8h 22m
Deal found 9/12![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2112:46 pm -
2 stops21h 05m
Mon 1/256:15 am -
1 stop5h 50m
Deal found 9/14![United Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:30 am -
1 stop6h 40m
Mon 10/191:36 pm -
1 stop8h 34m
Deal found 9/10![United Airlines logo]()
$590
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:25 am -
2 stops14h 56m
Mon 10/196:15 am -
1 stop5h 33m
Deal found 9/14![United Airlines logo]()
$611
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/2110:00 am -
2 stops9h 36m
Sun 10/256:15 am -
1 stop27h 30m
Deal found 9/11![United Airlines logo]()
$613
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/72:50 pm -
1 stop6h 40m
Sun 10/113:11 pm -
2 stops23h 32m
Deal found 9/11![United Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:50 am -
1 stop12h 26m
Mon 10/126:15 am -
1 stop12h 58m
Deal found 9/14![United Airlines logo]()
$689
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:50 am -
1 stop14h 40m
Thu 10/291:40 pm -
2 stops29h 42m
Deal found 9/10![United Airlines logo]()
$705
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:50 am -
1 stop14h 40m
Fri 10/166:15 am -
1 stop12h 58m
Deal found 9/14![United Airlines logo]()
$748
Last-minute flights from Mexico to St. LouisDiscover last-minute flight deals from Mexico to St. Louis. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Mexico to St. Louis. Data last updated September 15, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 9/258:40 am -
1 stop9h 37m
Mon 10/52:29 pm -
2 stops32h 46m
Deal found 9/11![Multiple Airlines logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 10/38:40 am -
1 stop9h 37m
Wed 10/72:29 pm -
2 stops30h 16m
Deal found 9/11![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/98:45 pm -
1 stop16h 40m
Mon 10/126:35 pm -
2 stops28h 40m
Deal found 9/11![Multiple Airlines logo]()
$381
This Frontier deal was found by Cheapflights users on 9/14. 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 10/126:00 am -
1 stop9h 58m
Fri 10/165:53 pm -
2 stops15h 55m
Deal found 9/14![Frontier logo]()
$483
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:20 pm -
1 stop29h 21m
Mon 10/198:55 am -
1 stop24h 55m
Deal found 9/14![Air Canada logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:51 am -
1 stop6h 19m
Mon 10/197:01 pm -
2 stops24h 18m
Deal found 9/14![United Airlines logo]()
$447
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am -
1 stop8h 58m
Mon 10/195:53 pm -
2 stops17h 52m
Deal found 9/10![Frontier logo]()
$450
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:08 am -
Nonstop3h 17m
Mon 10/266:30 am -
Nonstop3h 09m
Deal found 9/10![Frontier logo]()
$376
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/2212:40 pm -
2 stops11h 14m
Mon 10/2610:14 am -
1 stop9h 41m
Deal found 9/10![Delta logo]()
$430
This Gotogate deal was found by Cheapflights users on 9/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:50 pm -
1 stop25h 33m
Tue 11/34:05 pm -
2 stops22h 40m
Deal found 9/12![Air Canada logo]()
$490
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop8h 23m
Wed 11/44:05 pm -
1 stop17h 35m
Deal found 9/13![Air Canada logo]()
$418
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/296:01 am -
2 stops34h 39m
Thu 11/512:14 pm -
1 stop28h 12m
Deal found 9/14![Multiple Airlines logo]()
$409
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 September 15, 2026.
Search for one-way flight options from Mexico to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Tue 10/610:26 am -
3 stops36h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/710:57 am -
3 stops53h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sat 10/102:39 pm -
3 stops44h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$164
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:30 pm -
1 stop18h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Air Canada logo]()
$192
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/139:30 pm -
1 stop18h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Air Canada logo]()
$193
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:48 am -
1 stop6h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Fri 10/95:45 pm -
2 stops28h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$215
This Justfly.com deal was found by Cheapflights users on 9/14. 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 10/151:20 pm -
1 stop29h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Air Canada logo]()
$216
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:00 am -
1 stop8h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Air Canada logo]()
$217
This Justfly.com deal was found by Cheapflights users on 9/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:35 am -
1 stop28h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Air Canada logo]()
$221
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:05 pm -
1 stop23h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Air Canada logo]()
$222
This Air Canada deal was found by Cheapflights users on 9/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/149:30 pm -
1 stop18h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Air Canada logo]()
$223
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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $368 (Air Canada) |
One-way from | $127 (Kiwi.com) |
Popular in | April |
Cheapest in | May |
Average price | $589 |
Good one-way deal | $346 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 7,457,451 searches. Data last updated September 15, 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 Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Thu 10/15
9:05 pm-6:41 pm
2 stops21h 36m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$226
CancúnSt. Louis
CUN Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Wed 10/14
2:20 pm-10:30 pm
1 stop8h 10m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$246
Puerto VallartaSt. Louis
PVR Puerto Vallarta Ordaz - STL Lambert-St Louis
PVRSTL
Puerto Vallarta Ordaz
Fri 12/11
1:50 pm-3:26 pm
1 stop25h 36m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$247
CancúnSt. Louis
CUN Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Wed 11/11
8:20 am-5:20 pm
2 stops10h 00m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$250
CancúnSt. Louis
CUN Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Tue 10/13
11:15 pm-5:40 pm
3 stops18h 25m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$257
CancúnSt. Louis
CUN Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Tue 1/12
12:15 pm-11:39 pm
2 stops12h 24m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$266
CancúnSt. Louis
CUN Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Fri 11/13
4:55 pm-10:12 am
1 stop18h 17m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$266
CancúnSt. Louis
CUN Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Fri 12/11
6:16 pm-2:26 pm
2 stops21h 10m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$267
CancúnSt. Louis
CUN Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Thu 11/12
3:00 pm-3:26 pm
2 stops25h 26m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$278
CancúnSt. Louis
CUN Cancun - STL Lambert-St Louis
CUNSTL
Cancun
Wed 3/10
4:25 pm-11:39 pm
1 stop8h 14m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$279
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
PVR-STL
MEX-STL
CZM-STL
AGU-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
PVR-STL
MEX-STL
CZM-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 $504). Flying from Mexico to St. Louis in April is currently the most expensive (average of $757). 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 September 15, 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 September 15, 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.
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentElizabeth,Sep 2023
MEX - ATL
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentElizabeth,Sep 2023
MEX - ATL
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentElizabeth,Sep 2023
MEX - ATL
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
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 locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
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 September 15, 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 September 15, 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$298 | Average$588 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$466 | Average$613 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$521 | Average$676 | FlexibilityNo cancel fee | On-timeN/A |