$144+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
Nov 30 — Dec 71
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 31, 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 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:02 pm -
2 stops34h 53m
Tue 12/88:00 am -
1 stop27h 04m
Deal found 10/30![Multiple Airlines logo]()
$320
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:09 am -
1 stop11h 06m
Tue 12/12:09 pm -
2 stops20h 57m
Deal found 10/26![Multiple Airlines logo]()
$357
This Justfly.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:00 am -
1 stop17h 20m
Sat 12/127:55 pm -
1 stop20h 45m
Deal found 10/30![Frontier logo]()
$379
This Aeromexico deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:00 am -
1 stop7h 59m
Mon 12/211:57 pm -
1 stop8h 58m
Deal found 10/30![Aeromexico logo]()
$391
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:08 am -
1 stop7h 17m
Mon 12/710:16 am -
2 stops12h 49m
Deal found 10/26![Delta logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:04 pm -
1 stop25h 46m
Thu 12/38:00 am -
1 stop26h 57m
Deal found 10/27![Multiple Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:18 pm -
2 stops20h 35m
Thu 12/102:04 pm -
1 stop9h 01m
Deal found 10/28![Delta logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:04 pm -
1 stop25h 46m
Fri 12/47:00 am -
2 stops27h 57m
Deal found 10/27![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:58 pm -
1 stop20h 52m
Sun 12/66:10 am -
1 stop10h 30m
Deal found 10/30![Multiple Airlines logo]()
$416
This FlightHub deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:05 pm -
1 stop25h 40m
Wed 12/27:55 pm -
1 stop20h 33m
Deal found 10/27![Frontier logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:09 am -
2 stops31h 41m
Thu 12/38:00 am -
1 stop26h 57m
Deal found 10/27![Multiple Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:00 am -
1 stop8h 12m
Tue 12/112:58 pm -
1 stop9h 51m
Deal found 10/27![American Airlines logo]()
$425
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 31, 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 31, 2026.
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/46:15 am -
1 stop6h 28m
Mon 1/112:11 pm -
1 stop7h 19m
Deal found 10/26![United Airlines logo]()
$387
This Aeromexico deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/176:00 am -
1 stop9h 27m
Sun 1/243:24 pm -
1 stop7h 02m
Deal found 10/30![Aeromexico logo]()
$391
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/236:00 am -
2 stops12h 39m
Sat 1/3011:55 am -
2 stops10h 44m
Deal found 10/29![Delta logo]()
$423
This FlightHub deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/277:02 pm -
1 stop22h 26m
Sat 2/278:51 pm -
2 stops37h 29m
Deal found 10/29![Frontier logo]()
$475
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/175:29 am -
2 stops9h 01m
Sun 1/243:55 pm -
1 stop7h 00m
Deal found 10/26![American Airlines logo]()
$481
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:04 pm -
1 stop24h 49m
Mon 11/238:00 am -
1 stop15h 59m
Deal found 10/28![Multiple Airlines logo]()
$518
This Volaris deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:00 am -
1 stop10h 13m
Fri 12/48:10 am -
1 stop8h 18m
Deal found 10/30![Volaris logo]()
$534
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3012:20 pm -
Nonstop3h 05m
Fri 12/412:35 pm -
1 stop10h 40m
Deal found 10/29![Southwest logo]()
$536
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:30 am -
1 stop7h 33m
Sat 12/122:11 pm -
2 stops18h 38m
Deal found 10/29![United Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:03 am -
1 stop6h 56m
Tue 12/86:02 am -
2 stops14h 36m
Deal found 10/28![Delta logo]()
$514
This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:26 pm -
2 stops23h 27m
Tue 11/172:09 pm -
2 stops25h 14m
Deal found 10/30![Multiple Airlines logo]()
$521
This FlightHub deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/196:00 am -
1 stop10h 38m
Tue 2/167:44 pm -
2 stops45h 14m
Deal found 10/26![Frontier logo]()
$563
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:03 am -
1 stop6h 56m
Thu 12/102:27 pm -
1 stop9h 19m
Deal found 10/28![Delta logo]()
$514
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/155:59 pm -
1 stop17h 06m
Tue 1/192:11 pm -
1 stop7h 23m
Deal found 10/28![United Airlines logo]()
$516
This Volaris deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/159:42 am -
1 stop10h 03m
Sun 1/176:45 am -
1 stop9h 42m
Deal found 10/26![Volaris logo]()
$578
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:43 am -
1 stop11h 37m
Tue 12/87:00 am -
1 stop11h 46m
Deal found 10/25![American Airlines logo]()
$588
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2910:50 pm -
2 stops14h 10m
Thu 12/31:45 pm -
2 stops8h 25m
Deal found 10/25![Southwest logo]()
$589
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:05 pm -
2 stops11h 40m
Fri 12/49:28 pm -
1 stop19h 12m
Deal found 10/30![Multiple Airlines logo]()
$551
This Aeromexico deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/196:00 am -
2 stops12h 49m
Tue 2/1611:56 am -
2 stops11h 43m
Deal found 10/26![Aeromexico logo]()
$621
This Volaris deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Volaris 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 11/911:10 am -
1 stop12h 06m
Deal found 10/26![Volaris logo]()
$583
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/38:20 am -
2 stops7h 50m
Fri 1/89:40 am -
2 stops11h 30m
Deal found 10/30![Southwest logo]()
$600
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 10/26![American Airlines logo]()
$621
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/36:20 am -
1 stop8h 50m
Sun 1/173:10 pm -
1 stop8h 26m
Deal found 10/29![Delta logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/277:02 pm -
1 stop22h 26m
Mon 2/15:55 pm -
1 stop22h 32m
Deal found 10/26![Multiple Airlines logo]()
$602
This Volaris deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/206:00 am -
1 stop10h 13m
Sat 1/98:10 am -
1 stop8h 23m
Deal found 10/28![Volaris logo]()
$603
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:00 am -
1 stop7h 06m
Fri 12/185:37 pm -
2 stops17h 05m
Deal found 10/29![United Airlines logo]()
$629
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:20 pm -
2 stops18h 25m
Fri 12/181:40 pm -
1 stop11h 15m
Deal found 10/27![Southwest logo]()
$629
This Aeromexico deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
2 stops12h 05m
Mon 12/79:00 am -
2 stops15h 05m
Deal found 10/30![Aeromexico logo]()
$697
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/196:00 am -
2 stops10h 14m
Tue 2/169:10 am -
1 stop14h 29m
Deal found 10/26![Delta logo]()
$598
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:05 am -
1 stop8h 53m
Tue 12/16:00 am -
2 stops29h 06m
Deal found 10/26![Multiple Airlines logo]()
$603
Last-minute flights from St. Louis to MexicoDiscover last-minute flight deals from St. Louis to Mexico. Data last updated October 31, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Mexico. Data last updated October 31, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:59 pm -
2 stops20h 58m
Thu 12/38:13 am -
2 stops27h 04m
Deal found 10/28![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:20 am -
Nonstop3h 14m
Wed 11/2511:44 am -
1 stop6h 56m
Deal found 10/28![Frontier logo]()
$452
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:09 am -
1 stop11h 06m
Tue 12/12:09 pm -
2 stops20h 57m
Deal found 10/26![Multiple Airlines logo]()
$357
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:00 am -
1 stop8h 12m
Tue 12/112:58 pm -
1 stop9h 51m
Deal found 10/27![American Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:04 pm -
1 stop25h 46m
Thu 12/38:00 am -
1 stop26h 57m
Deal found 10/27![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:04 pm -
1 stop25h 46m
Fri 12/47:00 am -
2 stops27h 57m
Deal found 10/27![Multiple Airlines logo]()
$404
This FlightHub deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:05 pm -
1 stop25h 40m
Wed 12/27:55 pm -
1 stop20h 33m
Deal found 10/27![Frontier logo]()
$419
This FlightHub deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:05 pm -
1 stop25h 40m
Tue 12/15:55 am -
2 stops29h 11m
Deal found 10/27![Frontier logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:04 pm -
1 stop25h 46m
Wed 12/26:10 am -
1 stop10h 18m
Deal found 10/27![Multiple Airlines logo]()
$452
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:09 am -
2 stops31h 41m
Thu 12/38:00 am -
1 stop26h 57m
Deal found 10/27![Multiple Airlines logo]()
$421
This Cheapflightsfares deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/296:00 am -
Nonstop3h 14m
Thu 12/32:08 pm -
Nonstop3h 20m
Deal found 10/29![Frontier logo]()
$433
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:08 am -
1 stop7h 17m
Mon 12/710:16 am -
2 stops12h 49m
Deal found 10/26![Delta logo]()
$397
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 31, 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 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/152:00 pm -
2 stops32h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$144
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/233:04 pm -
2 stops29h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$147
This Frontier deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier 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 10/29![Frontier logo]()
$162
This Frontier deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/126:00 am -
1 stop13h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:02 pm -
2 stops34h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$163
This Aeromexico deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/306:00 am -
1 stop9h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Aeromexico logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:02 pm -
2 stops34h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:02 pm -
3 stops19h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$182
This Priceline deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am -
1 stop11h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:02 pm -
2 stops10h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 10/29![Multiple Airlines logo]()
$184
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:59 pm -
2 stops20h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$194
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 31, 2026.
Round-trip from | $320 (Kiwi.com) |
|---|---|
One-way from | $144 (Kiwi.com) |
Good round-trip deal | $544 or less |
Good one-way deal | $210 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 31, 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. LouisSantiago de Querétaro
STL Lambert-St Louis - QRO Santiago de Querétaro
STLQRO
Lambert-St Louis
Mon 11/23
3:04 pm-8:15 pm
2 stops29h 11m
Santiago de Querétaro
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$147
St. LouisMorelia
STL Lambert-St Louis - MLM Morelia
STLMLM
Lambert-St Louis
Tue 1/12
6:00 am-7:00 pm
1 stop13h 00m
Morelia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$162
St. LouisSan José del Cabo
STL Lambert-St Louis - SJD San José del Cabo Los Cabos
STLSJD
Lambert-St Louis
Wed 12/30
6:00 am-2:12 pm
1 stop9h 12m
San José del Cabo Los Cabos
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$166
St. LouisSan José del Cabo
STL Lambert-St Louis - SJD San José del Cabo Los Cabos
STLSJD
Lambert-St Louis
Wed 12/2
12:05 pm-4:31 pm
3 stops29h 26m
San José del Cabo Los Cabos
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$198
St. LouisMorelia
STL Lambert-St Louis - MLM Morelia
STLMLM
Lambert-St Louis
Mon 12/7
12:02 pm-8:45 pm
2 stops32h 43m
Morelia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$198
St. LouisMorelia
STL Lambert-St Louis - MLM Morelia
STLMLM
Lambert-St Louis
Mon 1/11
11:06 am-8:45 pm
3 stops33h 39m
Morelia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$202
St. LouisGuadalajara
STL Lambert-St Louis - GDL Guadalajara Miguel Hidal
STLGDL
Lambert-St Louis
Thu 11/26
5:15 pm-10:45 pm
1 stop29h 30m
Guadalajara Miguel Hidal
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$205
St. LouisMorelia
STL Lambert-St Louis - MLM Morelia
STLMLM
Lambert-St Louis
Wed 1/13
7:02 pm-9:26 am
2 stops38h 24m
Morelia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$207
St. LouisGuadalajara
STL Lambert-St Louis - GDL Guadalajara Miguel Hidal
STLGDL
Lambert-St Louis
Wed 11/25
3:04 pm-8:01 pm
3 stops28h 57m
Guadalajara Miguel Hidal
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$210
St. LouisMonterrey
STL Lambert-St Louis - MTY Monterrey Gen Mariano Escobedo
STLMTY
Lambert-St Louis
Sat 12/12
6:00 am-9:13 pm
1 stop15h 13m
Monterrey Gen Mariano Escobedo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$215
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-SJD
STL-GDL
STL-QRO
STL-MTY
STL-CUN
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-SJD
STL-GDL
STL-QRO
STL-MTY
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 $526). Flying from St. Louis to Mexico in December is currently the most expensive (average of $688). 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 31, 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 31, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited 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.
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.4
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.4
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.4
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.4
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.4
Food
7.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.4
Food
7.0
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 31, 2026.
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St. Louis to Mexico flights
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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 October 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$183 | Average$556 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$184 | Average$437 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$196 | Average$481 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$248 | Average$483 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$259 | Average$526 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$371 | Average$652 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$398 | Average$685 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$404 | Average$608 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$459 | Average$667 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$527 | Average$590 | FlexibilityNo cancel fee | On-time75% |