$181+ Cheap flights from St. Louis (STL) to Mexico City (MEX)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
May 26 — Haz 21
Round-trip
1 adult, Economy
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Cheapest flights from St. Louis to Mexico CityExplore the most affordable flight options available from St. Louis to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Nisan 26, 2026.
Explore the most affordable flight options available from St. Louis to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Nisan 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Sal 6/23:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Pzt 6/810:05 am
MEX
- STL
2 stops30h 25m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$359
This Expedia deal was found by Cheapflights users on 4/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cmt 6/63:25 pm
STL
- MEX
1 stop8h 20m
Frontier
Cmt 6/1311:05 am
MEX
- STL
1 stop12h 04m
Frontier
Deal found 4/25![Frontier logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Sal 6/23:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Çar 6/107:00 am
MEX
- STL
1 stop10h 18m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$375
This Priceline deal was found by Cheapflights users on 4/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cmt 5/238:08 pm
STL
- MEX
1 stop22h 22m
Frontier
Cmt 5/3011:05 am
MEX
- STL
1 stop11h 52m
Frontier
Deal found 4/25![Frontier logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Per 6/43:30 pm
STL
- MEX
1 stop8h 15m
Multiple Airlines
Sal 6/97:00 am
MEX
- STL
1 stop10h 24m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Sal 6/23:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Cmt 6/67:00 am
MEX
- STL
1 stop11h 31m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Per 5/143:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Sal 5/1911:05 am
MEX
- STL
2 stops20h 50m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Per 5/143:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Cmt 5/1611:05 am
MEX
- STL
2 stops23h 36m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cmt 5/238:08 pm
STL
- MEX
1 stop22h 22m
Multiple Airlines
Cum 5/2910:05 am
MEX
- STL
2 stops21h 50m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Pzt 5/118:08 pm
STL
- MEX
1 stop22h 22m
Multiple Airlines
Sal 5/1911:05 am
MEX
- STL
2 stops20h 50m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$413
Best flights from St. Louis to Mexico CityDiscover carefully curated flight deals from St. Louis to Mexico City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated Nisan 26, 2026.
Discover carefully curated flight deals from St. Louis to Mexico City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated Nisan 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Per 6/43:30 pm
STL
- MEX
1 stop8h 15m
Multiple Airlines
Sal 6/98:45 pm
MEX
- STL
2 stops20h 33m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$420
This Volaris deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Paz 7/193:34 pm
STL
- MEX
1 stop8h 11m
Volaris
Paz 7/268:45 pm
MEX
- STL
1 stop16h 38m
Volaris
Deal found 4/24![Volaris logo]()
$528
This Aeromexico deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Per 7/306:00 am
STL
- MEX
2 stops17h 45m
Aeromexico
Çar 8/56:55 am
MEX
- STL
2 stops15h 58m
Aeromexico
Deal found 4/21![Aeromexico logo]()
$624
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Çar 9/26:30 am
STL
- MEX
1 stop7h 10m
Delta
Per 10/18:40 am
MEX
- STL
1 stop13h 57m
Delta
Deal found 4/23![Delta logo]()
$624
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Per 10/156:15 am
STL
- MEX
1 stop5h 30m
United Airlines
Pzt 10/196:30 am
MEX
- STL
1 stop9h 31m
United Airlines
Deal found 4/26![United Airlines logo]()
$624
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Paz 5/244:19 pm
STL
- MEX
2 stops26h 11m
Multiple Airlines
Sal 5/267:00 am
MEX
- STL
1 stop6h 48m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$486
This Volaris deal was found by Cheapflights users on 4/25. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sal 6/23:33 pm
STL
- MEX
1 stop8h 12m
Volaris
Paz 6/78:40 am
MEX
- STL
1 stop9h 43m
Volaris
Deal found 4/25![Volaris logo]()
$548
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Per 6/259:21 am
STL
- MEX
1 stop13h 29m
Delta
Pzt 6/293:30 pm
MEX
- STL
1 stop7h 26m
Delta
Deal found 4/22![Delta logo]()
$624
This Volaris deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Çar 5/66:00 am
STL
- MEX
1 stop11h 40m
Volaris
Çar 5/138:45 pm
MEX
- STL
1 stop16h 54m
Volaris
Deal found 4/23![Volaris logo]()
$568
This eDestinos deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Pzt 5/184:19 pm
STL
- MEX
1 stop28h 26m
Multiple Airlines
Pzt 5/258:40 am
MEX
- STL
2 stops31h 53m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$604
This eDestinos deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Pzt 5/186:00 am
STL
- MEX
1 stop11h 40m
Volaris
Pzt 5/258:40 am
MEX
- STL
1 stop9h 43m
Volaris
Deal found 4/21![Volaris logo]()
$595
Last-minute flights from St. Louis to Mexico CityDiscover last-minute flight deals from St. Louis to Mexico City. Data last updated Nisan 26, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Mexico City. Data last updated Nisan 26, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Pzt 5/118:08 pm
STL
- MEX
1 stop22h 22m
Multiple Airlines
Sal 5/1911:05 am
MEX
- STL
2 stops20h 50m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Per 5/143:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Sal 5/1911:05 am
MEX
- STL
2 stops20h 50m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Per 5/143:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Cmt 5/1611:05 am
MEX
- STL
2 stops23h 36m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Per 5/143:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Cum 5/2211:05 pm
MEX
- STL
2 stops19h 26m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Per 5/144:19 pm
STL
- MEX
2 stops26h 11m
Multiple Airlines
Per 5/217:00 am
MEX
- STL
1 stop6h 31m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$450
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Pzt 5/184:19 pm
STL
- MEX
2 stops31h 26m
Multiple Airlines
Per 5/287:00 am
MEX
- STL
1 stop6h 31m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$447
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Sal 5/196:51 pm
STL
- MEX
2 stops23h 39m
Multiple Airlines
Per 5/287:00 am
MEX
- STL
1 stop6h 31m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$427
This Priceline deal was found by Cheapflights users on 4/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cmt 5/238:08 pm
STL
- MEX
1 stop22h 22m
Frontier
Cmt 5/3011:05 am
MEX
- STL
1 stop11h 52m
Frontier
Deal found 4/25![Frontier logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cmt 5/238:08 pm
STL
- MEX
1 stop22h 22m
Multiple Airlines
Cum 5/2910:05 am
MEX
- STL
2 stops21h 50m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$410
This Expedia deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cmt 5/237:05 am
STL
- MEX
1 stop29h 05m
Multiple Airlines
Cmt 5/3011:05 am
MEX
- STL
1 stop11h 52m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Paz 5/318:08 pm
STL
- MEX
1 stop22h 22m
Multiple Airlines
Çar 6/107:00 am
MEX
- STL
1 stop10h 18m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$451
One-way flights from St. Louis to Mexico CitySearch for one-way flight options from St. Louis to Mexico City. Find affordable one-way fares based on user searches. Data last updated Nisan 26, 2026.
Search for one-way flight options from St. Louis to Mexico City. Find affordable one-way fares based on user searches. Data last updated Nisan 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Sal 6/167:03 pm
STL
- MEX
1 stop28h 42m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$181
This Priceline deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Sal 6/164:17 pm
STL
- MEX
1 stop28h 28m
Frontier
Deal found 4/22![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Pzt 6/18:08 pm
STL
- MEX
1 stop22h 22m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cmt 5/28:17 pm
STL
- MEX
1 stop22h 13m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Çar 7/17:03 pm
STL
- MEX
2 stops25h 57m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$211
This Travelocity deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Pzt 6/151:05 pm
STL
- MEX
1 stop12h 30m
Air Canada
Deal found 4/24![Air Canada logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Cum 5/17:01 pm
STL
- MEX
2 stops23h 29m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Pzt 5/185:27 pm
STL
- MEX
2 stops43h 53m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Çar 6/177:03 pm
STL
- MEX
2 stops28h 42m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$231
Find flight deals from St. Louis to Mexico City
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Mexico City (MEX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated Nisan 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $359 (Kiwi.com) |
One-way from | $181 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $572 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Mexico City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Nisan 26, 2026.
Use the filters below to find and compare flights from St. Louis to Mexico City that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Per 6/4
3:30 pm-10:45 pm
1 stop8h 15m
Mexico City Benito Juarez
Sal 6/9
8:45 pm-6:18 pm
2 stops20h 33m
$420
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Paz 5/24
4:19 pm-5:30 pm
2 stops26h 11m
Mexico City Benito Juarez
Sal 5/26
7:00 am-2:48 pm
1 stop6h 48m
$486
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Paz 7/19
3:34 pm-10:45 pm
1 stop8h 11m
Mexico City Benito Juarez
Paz 7/26
8:45 pm-2:23 pm
1 stop16h 38m
$528
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Sal 6/2
3:33 pm-10:45 pm
1 stop8h 12m
Mexico City Benito Juarez
Paz 6/7
8:40 am-7:23 pm
1 stop9h 43m
$548
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Çar 5/6
6:00 am-4:40 pm
1 stop11h 40m
Mexico City Benito Juarez
Çar 5/13
8:45 pm-2:39 pm
1 stop16h 54m
$568
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Pzt 5/18
6:00 am-4:40 pm
1 stop11h 40m
Mexico City Benito Juarez
Pzt 5/25
8:40 am-7:23 pm
1 stop9h 43m
$595
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Pzt 5/18
4:19 pm-7:45 pm
1 stop28h 26m
Mexico City Benito Juarez
Pzt 5/25
8:40 am-5:33 pm
2 stops31h 53m
$604
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Per 7/30
6:00 am-10:45 pm
2 stops17h 45m
Mexico City Benito Juarez
Çar 8/5
6:55 am-11:53 pm
2 stops15h 58m
$624
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Çar 9/2
6:30 am-12:40 pm
1 stop7h 10m
Mexico City Benito Juarez
Per 10/1
8:40 am-11:37 pm
1 stop13h 57m
$624
Quickest round-trip
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Per 10/15
6:15 am-10:45 am
1 stop5h 30m
Mexico City Benito Juarez
Pzt 10/19
6:30 am-5:01 pm
1 stop9h 31m
$624
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Mexico City
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Mexico City in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Mexico City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Mexico City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Mexico City flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Mexico City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Mexico City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Mexico City
Have a flexible travel schedule? Discover the best time to fly to Mexico City from St. Louis with our price prediction graph.
STL-MEX
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 City
How far ahead should I book a flight from St. Louis to Mexico City?
The price you pay for your flight from St. Louis to Mexico City may vary depending on when you book. For the best chance of a lower fare, look to book 6 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from St. Louis to Mexico City?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Mexico City (average of $562). Flying from St. Louis to Mexico City in December is currently the most expensive (average of $875). 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.
How much does it cost to fly round-trip from St. Louis to Mexico City?
Reviews of airlines servicing Mexico City
Get insights into the airlines that provide service to Mexico City. 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 City. Reviews last updated Nisan 26, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from St. Louis to Mexico City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Mexico City. 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 Mexico City?
Book flights to Mexico City if you plan to visit one of these locationsTaxco
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Complete your trip
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Search flights from St. Louis to Mexico City by cabin class
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Other flights to Mexico City
Explore flights to Mexico City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on Nisan 26, 2026.
St. Louis and Mexico City flights
Browse other St. Louis and Mexico City flight options. Last updated on Nisan 26, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on Nisan 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from St. Louis to Mexico City
Discover the top 4 airlines that operate flights from St. Louis to Mexico City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Nisan 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$469 | Average$587 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$476 | Average$500 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$487 | Average$653 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$541 | Average$684 | FlexibilityNo cancel fee | On-time71% |