$158+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Mexico City 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
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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 City
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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 June 11, 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 June 11, 2026.
This Priceline deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:30 am
STL
- MEX
1 stop17h 40m
Frontier
Tue 7/78:45 pm
MEX
- STL
1 stop16h 38m
Frontier
Deal found 6/10![Frontier logo]()
$363
This Frontier deal was found by Cheapflights users on 6/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:33 pm
STL
- MEX
1 stop8h 12m
Frontier
Wed 9/28:40 am
MEX
- STL
1 stop9h 43m
Frontier
Deal found 6/8![Frontier logo]()
$368
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:08 pm
STL
- MEX
1 stop22h 22m
Frontier
Tue 7/288:45 pm
MEX
- STL
1 stop16h 38m
Frontier
Deal found 6/9![Frontier logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 8/193:33 pm
STL
- MEX
1 stop8h 12m
Multiple Airlines
Tue 8/257:00 am
MEX
- STL
1 stop6h 48m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 7/17:46 pm
STL
- MEX
1 stop25h 19m
Multiple Airlines
Wed 7/811:00 am
MEX
- STL
1 stop30h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 6/292:56 pm
STL
- MEX
1 stop30h 09m
Multiple Airlines
Wed 7/811:00 am
MEX
- STL
1 stop30h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 7/17:46 pm
STL
- MEX
1 stop25h 19m
Multiple Airlines
Tue 7/711:00 am
MEX
- STL
1 stop30h 05m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/32:56 pm
STL
- MEX
1 stop31h 49m
Multiple Airlines
Mon 7/611:00 am
MEX
- STL
1 stop30h 05m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 6/292:56 pm
STL
- MEX
1 stop30h 09m
Multiple Airlines
Fri 7/1011:00 am
MEX
- STL
1 stop30h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 6/307:46 pm
STL
- MEX
1 stop25h 19m
Multiple Airlines
Fri 7/1011:00 am
MEX
- STL
1 stop30h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 8/193:33 pm
STL
- MEX
2 stops29h 27m
Multiple Airlines
Wed 8/267:00 am
MEX
- STL
1 stop6h 48m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$419
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 June 11, 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 June 11, 2026.
This Volaris deal was found by Cheapflights users on 6/8. 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.
Mon 7/66:34 am
STL
- MEX
1 stop17h 36m
Volaris
Mon 7/138:45 pm
MEX
- STL
1 stop16h 38m
Volaris
Deal found 6/8![Volaris logo]()
$483
This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 10/512:00 pm
STL
- MEX
1 stop10h 10m
Delta
Mon 10/128:40 am
MEX
- STL
1 stop13h 59m
Delta
Deal found 6/10![Delta logo]()
$636
This Volaris deal was found by Cheapflights users on 6/8. 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.
Wed 7/296:34 am
STL
- MEX
1 stop17h 36m
Volaris
Sun 8/28:45 pm
MEX
- STL
1 stop16h 38m
Volaris
Deal found 6/8![Volaris logo]()
$483
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/303:41 pm
STL
- MEX
1 stop8h 04m
Volaris
Wed 8/58:40 am
MEX
- STL
1 stop9h 43m
Volaris
Deal found 6/10![Volaris logo]()
$508
This Volaris deal was found by Cheapflights users on 6/9. 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.
Tue 6/236:30 am
STL
- MEX
1 stop11h 10m
Volaris
Fri 6/2611:05 am
MEX
- STL
1 stop11h 44m
Volaris
Deal found 6/9![Volaris logo]()
$518
This Delta deal was found by Cheapflights users on 6/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:30 am
STL
- MEX
2 stops12h 00m
Delta
Wed 8/57:00 am
MEX
- STL
2 stops10h 55m
Delta
Deal found 6/8![Delta logo]()
$640
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 9/76:30 am
STL
- MEX
2 stops12h 55m
Delta
Mon 9/147:55 am
MEX
- STL
2 stops10h 49m
Delta
Deal found 6/7![Delta logo]()
$640
This FlightHub deal was found by Cheapflights users on 6/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/73:33 pm
STL
- MEX
1 stop8h 12m
Volaris
Mon 9/147:00 am
MEX
- STL
1 stop9h 44m
Volaris
Deal found 6/7![Volaris logo]()
$572
Last-minute flights from St. Louis to Mexico CityDiscover last-minute flight deals from St. Louis to Mexico City. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Mexico City. Data last updated June 11, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/281:20 pm
STL
- MEX
1 stop11h 35m
Multiple Airlines
Wed 7/18:45 pm
MEX
- STL
1 stop16h 52m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 6/292:56 pm
STL
- MEX
1 stop30h 09m
Multiple Airlines
Wed 7/811:00 am
MEX
- STL
1 stop30h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 6/292:56 pm
STL
- MEX
1 stop30h 09m
Multiple Airlines
Fri 7/1011:00 am
MEX
- STL
1 stop30h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 6/307:46 pm
STL
- MEX
1 stop25h 19m
Multiple Airlines
Fri 7/1011:00 am
MEX
- STL
1 stop30h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 7/17:46 pm
STL
- MEX
1 stop25h 19m
Multiple Airlines
Wed 7/811:00 am
MEX
- STL
1 stop30h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 7/17:46 pm
STL
- MEX
1 stop25h 19m
Multiple Airlines
Tue 7/711:00 am
MEX
- STL
1 stop30h 05m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 7/17:46 pm
STL
- MEX
1 stop25h 19m
Multiple Airlines
Thu 7/96:20 am
MEX
- STL
2 stops10h 17m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/32:56 pm
STL
- MEX
1 stop31h 49m
Multiple Airlines
Mon 7/611:00 am
MEX
- STL
1 stop30h 05m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/32:56 pm
STL
- MEX
1 stop31h 49m
Multiple Airlines
Tue 7/216:20 am
MEX
- STL
2 stops25h 37m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$435
This Priceline deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:30 am
STL
- MEX
1 stop17h 40m
Frontier
Tue 7/78:45 pm
MEX
- STL
1 stop16h 38m
Frontier
Deal found 6/10![Frontier logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:56 pm
STL
- MEX
2 stops17h 29m
Multiple Airlines
Tue 7/711:00 am
MEX
- STL
1 stop30h 05m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$426
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:08 pm
STL
- MEX
1 stop22h 22m
Frontier
Tue 7/288:45 pm
MEX
- STL
1 stop16h 38m
Frontier
Deal found 6/9![Frontier logo]()
$381
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 June 11, 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 June 11, 2026.
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:30 am
STL
- MEX
1 stop11h 10m
Frontier
Deal found 6/8![Frontier logo]()
$158
This Priceline deal was found by Cheapflights users on 6/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/283:41 pm
STL
- MEX
1 stop8h 04m
Frontier
Deal found 6/7![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 6/307:46 pm
STL
- MEX
1 stop25h 19m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sun 7/57:10 pm
STL
- MEX
1 stop27h 35m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 7/67:10 pm
STL
- MEX
1 stop25h 55m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 8/177:10 pm
STL
- MEX
1 stop25h 55m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sat 7/42:56 pm
STL
- MEX
2 stops17h 29m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$182
This Mytrip deal was found by Cheapflights users on 6/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:03 pm
STL
- MEX
1 stop27h 42m
Frontier
Deal found 6/8![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Tue 7/76:34 pm
STL
- MEX
2 stops28h 41m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$187
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (Priceline) |
One-way from | $158 (Orbitz) |
Popular in | December |
Cheapest in | April |
Average price | $698 |
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 June 11, 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
Mon 7/6
6:34 am-11:10 pm
1 stop17h 36m
Mexico City Benito Juarez
Mon 7/13
8:45 pm-2:23 pm
1 stop16h 38m
$483
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Wed 7/29
6:34 am-11:10 pm
1 stop17h 36m
Mexico City Benito Juarez
Sun 8/2
8:45 pm-2:23 pm
1 stop16h 38m
$483
Quickest round-trip
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Thu 7/30
3:41 pm-10:45 pm
1 stop8h 04m
Mexico City Benito Juarez
Wed 8/5
8:40 am-7:23 pm
1 stop9h 43m
$508
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Tue 6/23
6:30 am-4:40 pm
1 stop11h 10m
Mexico City Benito Juarez
Fri 6/26
11:05 am-11:49 pm
1 stop11h 44m
$518
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Mon 9/7
3:33 pm-10:45 pm
1 stop8h 12m
Mexico City Benito Juarez
Mon 9/14
7:00 am-5:44 pm
1 stop9h 44m
$572
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Mon 10/5
12:00 pm-9:10 pm
1 stop10h 10m
Mexico City Benito Juarez
Mon 10/12
8:40 am-11:39 pm
1 stop13h 59m
$636
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Thu 7/30
6:30 am-5:30 pm
2 stops12h 00m
Mexico City Benito Juarez
Wed 8/5
7:00 am-6:55 pm
2 stops10h 55m
$640
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Mon 9/7
6:30 am-6:25 pm
2 stops12h 55m
Mexico City Benito Juarez
Mon 9/14
7:55 am-7:44 pm
2 stops10h 49m
$640
Cheapest one-way
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Mon 8/17
4:57 pm-9:55 pm
3 stops53h 58m
$181
St. LouisMexico City
STL - MEX
STLMEX
Lambert-St Louis
Tue 7/7
6:34 pm-10:15 pm
2 stops28h 41m
$187
Showing 1-10 of 15 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | 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 9 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, April is the cheapest month in which you can book a flight from St. Louis to Mexico City (average of $572). 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 June 11, 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.
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Complete your trip to Mexico City by adding a car rental and/or hotel reservation to your travel itinerary.
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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 June 11, 2026.
St. Louis and Mexico City flights
Browse other St. Louis and Mexico City flight options. Last updated on June 11, 2026.
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Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from St. Louis to Mexico City
Discover the top 3 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$469 | Average$684 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$550 | Average$667 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$562 | Average$693 | FlexibilityNo cancel fee | On-time71% |