$136+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
Oct 12 — Oct 191
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 September 12, 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 September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/96:44 pm -
2 stops17h 29m
Wed 11/187:00 am -
1 stop10h 40m
Deal found 9/9![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/136:44 pm -
2 stops17h 29m
Wed 11/187:00 am -
1 stop10h 40m
Deal found 9/9![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/96:44 pm -
2 stops17h 29m
Fri 11/137:00 am -
1 stop10h 40m
Deal found 9/9![Multiple Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/38:10 pm -
1 stop22h 20m
Sat 10/1011:05 am -
1 stop11h 08m
Deal found 9/9![Multiple Airlines logo]()
$347
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.
Mon 10/52:29 pm -
2 stops32h 46m
Wed 10/148:45 pm -
1 stop16h 40m
Deal found 9/11![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/236:35 pm -
2 stops42h 28m
Fri 10/306:00 am -
1 stop10h 40m
Deal found 9/8![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:20 am -
1 stop13h 25m
Wed 10/710:50 pm -
2 stops41h 08m
Deal found 9/7![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/96:44 pm -
2 stops17h 29m
Tue 11/179:02 am -
1 stop30h 21m
Deal found 9/9![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/124:30 pm -
1 stop28h 15m
Mon 10/1911:05 am -
1 stop11h 08m
Deal found 9/7![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/136:44 pm -
2 stops17h 29m
Tue 11/179:02 am -
1 stop30h 21m
Deal found 9/9![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/107:42 pm -
1 stop21h 43m
Fri 10/166:00 am -
1 stop10h 40m
Deal found 9/9![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/96:44 pm -
2 stops17h 29m
Sat 11/149:02 am -
1 stop10h 12m
Deal found 9/9![Multiple Airlines logo]()
$373
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 September 12, 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 September 12, 2026.
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.
Mon 2/85:25 am -
1 stop8h 38m
Fri 2/122:11 pm -
1 stop6h 55m
Deal found 9/11![United Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/224:30 pm -
2 stops23h 57m
Thu 10/298:02 am -
1 stop14h 14m
Deal found 9/7![Multiple Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Sun 1/176:00 am -
1 stop9h 00m
Sun 1/2410:30 am -
2 stops12h 09m
Deal found 9/7![Delta logo]()
$478
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/265:05 am -
1 stop6h 45m
Mon 11/23:10 pm -
1 stop8h 40m
Deal found 9/11![Southwest logo]()
$478
This Volaris deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Wed 11/186:20 am -
1 stop17h 00m
Mon 11/2311:10 am -
1 stop12h 49m
Deal found 9/9![Volaris logo]()
$510
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/229:00 am -
1 stop12h 23m
Sun 1/316:05 am -
1 stop10h 23m
Deal found 9/10![American Airlines logo]()
$596
This CheapOair deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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.
Fri 10/238:00 pm -
2 stops33h 56m
Fri 10/307:07 pm -
2 stops23h 07m
Deal found 9/8![Frontier logo]()
$600
This Aeromexico 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/306:00 am -
1 stop7h 45m
Wed 12/26:04 am -
2 stops15h 34m
Deal found 9/11![Aeromexico logo]()
$605
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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
Fri 11/612:49 pm -
1 stop8h 37m
Deal found 9/7![United Airlines logo]()
$433
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.
Mon 10/197:00 am -
1 stop12h 55m
Wed 11/118:02 am -
2 stops16h 54m
Deal found 9/11![Delta logo]()
$486
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.
Sun 10/2512:16 pm -
1 stop29h 27m
Sun 11/12:36 pm -
2 stops27h 04m
Deal found 9/10![Multiple Airlines logo]()
$494
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/188:30 pm -
2 stops16h 35m
Wed 10/2111:00 am -
1 stop6h 45m
Deal found 9/8![Southwest logo]()
$515
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:00 am -
2 stops10h 32m
Wed 11/1812:49 pm -
1 stop8h 37m
Deal found 9/9![United Airlines logo]()
$478
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Sun 1/105:30 pm -
2 stops20h 10m
Wed 1/1312:50 pm -
2 stops23h 33m
Deal found 9/7![Delta logo]()
$493
This Volaris deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/231:30 pm -
1 stop13h 39m
Sun 10/258:02 am -
1 stop14h 11m
Deal found 9/7![Volaris logo]()
$588
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Sat 11/148:50 am -
Nonstop4h 10m
Wed 11/182:05 pm -
1 stop8h 00m
Deal found 9/9![Southwest logo]()
$538
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.
Sun 10/46:15 am -
2 stops12h 33m
Thu 10/812:35 pm -
1 stop11h 19m
Deal found 9/10![Delta logo]()
$510
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:48 am -
1 stop7h 05m
Sat 10/173:53 pm -
1 stop6h 49m
Deal found 9/11![American Airlines logo]()
$623
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.
Fri 10/236:35 pm -
2 stops19h 50m
Sun 10/253:35 pm -
1 stop24h 23m
Deal found 9/11![Frontier logo]()
$640
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:50 am -
2 stops9h 50m
Mon 11/22:05 pm -
1 stop7h 30m
Deal found 9/10![Southwest logo]()
$542
This Aeromexico deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Mon 1/119:00 am -
2 stops11h 27m
Sat 2/611:23 am -
2 stops12h 16m
Deal found 9/7![Aeromexico logo]()
$659
This Volaris 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/316:00 am -
1 stop13h 20m
Sat 2/67:36 am -
1 stop8h 51m
Deal found 9/11![Volaris logo]()
$612
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.
Mon 11/25:00 am -
1 stop9h 03m
Tue 11/32:11 pm -
2 stops25h 48m
Deal found 9/11![United Airlines logo]()
$557
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Sun 11/297:05 am -
1 stop12h 50m
Thu 12/312:16 pm -
2 stops12h 10m
Deal found 9/7![Delta logo]()
$510
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Wed 1/64:05 pm -
1 stop29h 55m
Mon 2/88:23 pm -
2 stops19h 03m
Deal found 9/9![Multiple Airlines logo]()
$641
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:40 am -
1 stop9h 15m
Fri 10/166:00 am -
1 stop7h 30m
Deal found 9/11![American Airlines logo]()
$665
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:01 pm -
2 stops19h 47m
Wed 10/211:44 pm -
2 stops20h 29m
Deal found 9/8![United Airlines logo]()
$557
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 1/196:00 am -
2 stops17h 30m
Mon 3/2211:35 am -
2 stops18h 37m
Deal found 9/9![Delta logo]()
$517
This Volaris deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/91:30 pm -
1 stop13h 39m
Fri 10/167:58 am -
1 stop10h 17m
Deal found 9/8![Volaris logo]()
$633
This Aeromexico deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Mon 10/510:05 am -
1 stop8h 39m
Thu 10/86:01 am -
2 stops16h 53m
Deal found 9/7![Aeromexico logo]()
$720
Last-minute flights from St. Louis to MexicoDiscover last-minute flight deals from St. Louis to Mexico. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Mexico. Data last updated September 12, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/28:10 pm -
1 stop22h 20m
Tue 10/64:10 pm -
2 stops20h 00m
Deal found 9/8![Multiple Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/22:29 pm -
2 stops33h 16m
Wed 10/78:45 pm -
1 stop16h 40m
Deal found 9/7![Multiple Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/38:10 pm -
1 stop22h 20m
Sat 10/1011:05 am -
1 stop11h 08m
Deal found 9/9![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:20 am -
1 stop13h 25m
Wed 10/710:50 pm -
2 stops41h 08m
Deal found 9/7![Multiple Airlines logo]()
$361
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.
Mon 10/52:29 pm -
2 stops32h 46m
Wed 10/148:45 pm -
1 stop16h 40m
Deal found 9/11![Multiple Airlines logo]()
$357
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 10/96:35 pm -
2 stops28h 40m
Thu 10/157:00 am -
1 stop8h 58m
Deal found 9/10![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/107:42 pm -
1 stop21h 43m
Fri 10/166:00 am -
1 stop10h 40m
Deal found 9/9![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/124:30 pm -
1 stop28h 15m
Mon 10/1911:05 am -
1 stop11h 08m
Deal found 9/7![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/126:35 pm -
2 stops29h 10m
Tue 10/208:40 am -
1 stop29h 44m
Deal found 9/8![Multiple Airlines logo]()
$384
This FlightHub deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/144:19 pm -
1 stop26h 11m
Wed 10/218:45 pm -
1 stop16h 40m
Deal found 9/8![Frontier logo]()
$374
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.
Mon 10/196:35 pm -
2 stops28h 40m
Wed 11/118:00 am -
1 stop7h 23m
Deal found 9/11![Multiple Airlines logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/236:35 pm -
2 stops42h 28m
Fri 10/306:00 am -
1 stop10h 40m
Deal found 9/8![Multiple Airlines logo]()
$361
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 September 12, 2026.
Search for one-way flight options from St. Louis to Mexico. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 -
2 stops26h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/126:35 pm -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$139
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.
Mon 11/96:44 pm -
3 stops37h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$160
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 10/306:44 pm -
3 stops43h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$162
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.
Fri 11/136:44 pm -
3 stops37h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$166
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.
Wed 10/146:35 pm -
3 stops24h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/216:35 pm -
2 stops25h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$174
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 11/116:44 pm -
3 stops44h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$176
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 11/116:44 pm -
3 stops46h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$177
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.
Mon 11/97:59 pm -
2 stops26h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$180
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 11/116:44 pm -
3 stops22h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$180
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.
Sat 11/147:59 pm -
2 stops26h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$182
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 September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $335 (Kiwi.com) |
One-way from | $136 (Kiwi.com) |
Popular in | September |
Cheapest in | April |
Average price | $755 |
Good round-trip deal | $531 or less |
Good one-way deal | $265 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 September 12, 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. LouisMexico City
STL Lambert-St Louis - MEX Mexico City Benito Juarez
STLMEX
Lambert-St Louis
Mon 10/12
6:35 pm-7:45 pm
2 stops26h 10m
Mexico City Benito Juarez
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$139
St. LouisPuerto Vallarta
STL Lambert-St Louis - PVR Puerto Vallarta Ordaz
STLPVR
Lambert-St Louis
Mon 11/9
6:44 pm-8:43 am
3 stops37h 59m
Puerto Vallarta Ordaz
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$160
St. LouisLeón
STL Lambert-St Louis - BJX León Del Bajio
STLBJX
Lambert-St Louis
Fri 10/30
6:44 pm-1:20 pm
3 stops43h 36m
León Del Bajio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$162
St. LouisSantiago de Querétaro
STL Lambert-St Louis - QRO Santiago de Querétaro
STLQRO
Lambert-St Louis
Mon 11/2
6:44 pm-2:08 pm
3 stops19h 24m
Santiago de Querétaro
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$168
St. LouisPuerto Vallarta
STL Lambert-St Louis - PVR Puerto Vallarta Ordaz
STLPVR
Lambert-St Louis
Wed 11/11
6:44 pm-3:13 pm
3 stops44h 29m
Puerto Vallarta Ordaz
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$176
St. LouisGuadalajara
STL Lambert-St Louis - GDL Guadalajara Miguel Hidal
STLGDL
Lambert-St Louis
Sat 10/10
7:42 pm-4:25 pm
1 stop21h 43m
Guadalajara Miguel Hidal
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$185
St. LouisGuadalajara
STL Lambert-St Louis - GDL Guadalajara Miguel Hidal
STLGDL
Lambert-St Louis
Thu 11/5
1:28 pm-4:20 pm
2 stops26h 52m
Guadalajara Miguel Hidal
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$191
St. LouisSan José del Cabo
STL Lambert-St Louis - SJD San José del Cabo Los Cabos
STLSJD
Lambert-St Louis
Mon 3/8
6:15 am-11:43 am
1 stop6h 28m
San José del Cabo Los Cabos
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$195
St. LouisSan José del Cabo
STL Lambert-St Louis - SJD San José del Cabo Los Cabos
STLSJD
Lambert-St Louis
Tue 3/9
6:00 am-2:10 pm
1 stop9h 10m
San José del Cabo Los Cabos
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$195
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
$195
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-MEX
STL-GDL
STL-SJD
STL-BJX
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-MEX
STL-GDL
STL-SJD
STL-BJX
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 $519). Flying from St. Louis to Mexico in September is currently the most expensive (average of $650). 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 September 12, 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 41 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 September 12, 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.
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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
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St. Louis and Mexico flights
Browse other St. Louis and Mexico flight options. Last updated on September 12, 2026.
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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 September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$519 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$187 | Average$441 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$195 | Average$550 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$196 | Average$456 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$224 | Average$450 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$398 | Average$671 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$404 | Average$545 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$405 | Average$643 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$431 | Average$663 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$527 | Average$590 | FlexibilityNo cancel fee | On-time75% |