$121+ Cheap flights from St. Louis (STL) to Playa del Carmen, Mexico
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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CUN
Mar 13 — Mar 201
1 adult, Economy
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Find cheap flights from St. Louis to Playa del Carmen 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.Cheapflights Tip: The best prices from Lambert-St Louis to Playa del Carmen are usually found in September or October, booked 42 days in advance, depart on a Monday or Wednesday and return on a Saturday
Cheap flight deals from St. Louis to Playa del Carmen
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to Playa del CarmenExplore the most affordable flight options available from St. Louis to Playa del Carmen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.
Explore the most affordable flight options available from St. Louis to Playa del Carmen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.
This Frontier deal was found by Cheapflights users on 2/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
- CUN
1 stop11h 34m
Frontier
Sat 3/72:22 pm
CUN
- STL
1 stop9h 57m
Frontier
Deal found 2/9![Frontier logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
- CUN
1 stop16h 29m
Multiple Airlines
Thu 3/51:25 pm
CUN
- STL
2 stops18h 37m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$337
This Frontier deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Tue 5/1911:44 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 2/11![Frontier logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/278:22 pm
STL
- CUN
1 stop11h 44m
Multiple Airlines
Wed 3/410:13 am
CUN
- STL
1 stop13h 14m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/278:22 pm
STL
- CUN
1 stop11h 44m
Multiple Airlines
Thu 3/510:13 am
CUN
- STL
1 stop14h 46m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:22 pm
STL
- CUN
3 stops36h 26m
Multiple Airlines
Wed 3/411:42 am
CUN
- STL
Nonstop3h 27m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$346
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:21 pm
STL
- CUN
1 stop14h 40m
Frontier
Wed 3/1111:44 am
CUN
- STL
Nonstop3h 27m
Frontier
Deal found 2/11![Frontier logo]()
$347
This Orbitz deal was found by Cheapflights users on 2/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:12 pm
STL
- CUN
1 stop18h 27m
Frontier
Sat 4/252:36 pm
CUN
- STL
1 stop8h 43m
Frontier
Deal found 2/10![Frontier logo]()
$348
This Frontier deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Wed 4/2911:44 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 2/10![Frontier logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 4/208:12 pm
STL
- CUN
1 stop18h 27m
Multiple Airlines
Tue 4/281:00 pm
CUN
- STL
2 stops17h 50m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:21 pm
STL
- CUN
1 stop14h 40m
Frontier
Thu 3/129:11 am
CUN
- STL
1 stop22h 11m
Frontier
Deal found 2/11![Frontier logo]()
$353
Best flights from St. Louis to Playa del CarmenDiscover carefully curated flight deals from St. Louis to Playa del Carmen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 11, 2026.
Discover carefully curated flight deals from St. Louis to Playa del Carmen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 11, 2026.
This Southwest deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:35 am
STL
- CUN
1 stop7h 35m
Southwest
Tue 5/193:50 pm
CUN
- STL
Nonstop3h 10m
Southwest
Deal found 2/11![Southwest logo]()
$375
This Delta deal was found by Cheapflights users on 2/8. 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.
Sun 4/197:25 am
STL
- CUN
1 stop12h 49m
Delta
Thu 4/2311:00 am
CUN
- STL
1 stop12h 34m
Delta
Deal found 2/8![Delta logo]()
$386
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:25 am
STL
- CUN
Nonstop3h 00m
Southwest
Fri 5/81:20 pm
CUN
- STL
1 stop10h 20m
Southwest
Deal found 2/8![Southwest logo]()
$381
This Delta deal was found by Cheapflights users on 2/8. 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.
Sun 3/16:10 am
STL
- CUN
2 stops11h 37m
Delta
Wed 3/412:42 pm
CUN
- STL
2 stops11h 54m
Delta
Deal found 2/8![Delta logo]()
$386
This Delta deal was found by Cheapflights users on 2/8. 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.
Tue 4/286:00 am
STL
- CUN
2 stops12h 35m
Delta
Tue 5/51:50 pm
CUN
- STL
1 stop9h 44m
Delta
Deal found 2/8![Delta logo]()
$386
This Southwest deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:45 am
STL
- CUN
2 stops7h 35m
Southwest
Tue 5/191:20 pm
CUN
- STL
1 stop9h 15m
Southwest
Deal found 2/11![Southwest logo]()
$390
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/87:03 am
STL
- CUN
1 stop13h 17m
Delta
Wed 3/1110:00 am
CUN
- STL
1 stop7h 53m
Delta
Deal found 2/9![Delta logo]()
$386
This Delta deal was found by Cheapflights users on 2/8. 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.
Sun 4/56:29 am
STL
- CUN
2 stops12h 11m
Delta
Thu 4/94:10 pm
CUN
- STL
1 stop7h 15m
Delta
Deal found 2/8![Delta logo]()
$386
This Southwest deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/38:20 am
STL
- CUN
1 stop11h 40m
Southwest
Wed 4/83:50 pm
CUN
- STL
Nonstop3h 10m
Southwest
Deal found 2/9![Southwest logo]()
$451
Last-minute flights from St. Louis to Playa del CarmenDiscover last-minute flight deals from St. Louis to Playa del Carmen. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Playa del Carmen. Data last updated February 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:22 pm
STL
- CUN
3 stops36h 26m
Multiple Airlines
Wed 3/411:42 am
CUN
- STL
Nonstop3h 27m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/278:22 pm
STL
- CUN
1 stop11h 44m
Multiple Airlines
Wed 3/410:13 am
CUN
- STL
1 stop13h 14m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/278:22 pm
STL
- CUN
1 stop11h 44m
Multiple Airlines
Thu 3/510:13 am
CUN
- STL
1 stop14h 46m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$345
This Super.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:22 pm
STL
- CUN
1 stop11h 44m
Frontier
Tue 3/32:27 pm
CUN
- STL
1 stop26h 26m
Frontier
Deal found 2/11![Frontier logo]()
$355
This Frontier deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:00 am
STL
- CUN
Nonstop3h 30m
Frontier
Thu 3/511:42 am
CUN
- STL
Nonstop3h 27m
Frontier
Deal found 2/11![Frontier logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
- CUN
1 stop16h 29m
Multiple Airlines
Thu 3/51:25 pm
CUN
- STL
2 stops18h 37m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$337
This Frontier deal was found by Cheapflights users on 2/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
- CUN
1 stop11h 34m
Frontier
Sat 3/72:22 pm
CUN
- STL
1 stop9h 57m
Frontier
Deal found 2/9![Frontier logo]()
$330
This Frontier deal was found by Cheapflights users on 2/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
- CUN
1 stop11h 34m
Frontier
Thu 3/511:42 am
CUN
- STL
Nonstop3h 27m
Frontier
Deal found 2/9![Frontier logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/48:17 pm
STL
- CUN
1 stop11h 34m
Frontier
Fri 3/612:14 pm
CUN
- STL
Nonstop3h 27m
Frontier
Deal found 2/9![Frontier logo]()
$354
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:21 pm
STL
- CUN
1 stop14h 40m
Frontier
Wed 3/1111:44 am
CUN
- STL
Nonstop3h 27m
Frontier
Deal found 2/11![Frontier logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:21 pm
STL
- CUN
1 stop14h 40m
Frontier
Thu 3/129:11 am
CUN
- STL
1 stop22h 11m
Frontier
Deal found 2/11![Frontier logo]()
$353
One-way flights from St. Louis to Playa del CarmenSearch for one-way flight options from St. Louis to Playa del Carmen. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
Search for one-way flight options from St. Louis to Playa del Carmen. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This Super.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 2/11![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:15 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 2/11![Frontier logo]()
$122
This Expedia deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 2/11![Frontier logo]()
$123
This Orbitz deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 am
STL
- CUN
Nonstop3h 30m
Frontier
Deal found 2/11![Frontier logo]()
$126
This Trip.com deal was found by Cheapflights users on 2/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:12 pm
STL
- CUN
1 stop18h 27m
Frontier
Deal found 2/9![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
- CUN
1 stop11h 34m
Frontier
Deal found 2/11![Frontier logo]()
$131
This Travelocity deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:12 pm
STL
- CUN
1 stop18h 27m
Frontier
Deal found 2/11![Frontier logo]()
$134
This Expedia deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:12 pm
STL
- CUN
1 stop18h 27m
Frontier
Deal found 2/11![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 5/28:12 pm
STL
- CUN
1 stop18h 27m
Frontier
Deal found 2/10![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/33:49 pm
STL
- CUN
1 stop16h 29m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$141
Find flight deals from St. Louis to Playa del Carmen
Keep the following information in mind while searching for St. Louis to Playa del Carmen flight deals. Data was last updated February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $330 (Frontier) |
One-way from | $121 (Super.com) |
Popular in | March |
Cheapest in | September |
Average price | $489 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Playa del Carmen 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 February 11, 2026.
Use the filters below to find and compare flights from St. Louis to Playa del Carmen that are best for you.
Fly from
St. Louis
Fly to
Playa del Carmen
Route
Depart
Return
Price
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Tue 5/12
6:35 am-2:10 pm
1 stop7h 35m
Cancun
Tue 5/19
3:50 pm-7:00 pm
Nonstop3h 10m
$375
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 5/3
11:25 am-2:25 pm
Nonstop3h 00m
Cancun
Fri 5/8
1:20 pm-11:40 pm
1 stop10h 20m
$381
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 4/19
7:25 am-8:14 pm
1 stop12h 49m
Cancun
Thu 4/23
11:00 am-11:34 pm
1 stop12h 34m
$386
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 3/1
6:10 am-6:47 pm
2 stops11h 37m
Cancun
Wed 3/4
12:42 pm-11:36 pm
2 stops11h 54m
$386
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Tue 4/28
6:00 am-6:35 pm
2 stops12h 35m
Cancun
Tue 5/5
1:50 pm-11:34 pm
1 stop9h 44m
$386
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 3/8
7:03 am-8:20 pm
1 stop13h 17m
Cancun
Wed 3/11
10:00 am-5:53 pm
1 stop7h 53m
$386
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 4/5
6:29 am-6:40 pm
2 stops12h 11m
Cancun
Thu 4/9
4:10 pm-11:25 pm
1 stop7h 15m
$386
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Tue 4/28
5:45 am-1:20 pm
2 stops7h 35m
Cancun
Tue 5/19
1:20 pm-10:35 pm
1 stop9h 15m
$390
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Fri 4/3
8:20 am-8:00 pm
1 stop11h 40m
Cancun
Wed 4/8
3:50 pm-7:00 pm
Nonstop3h 10m
$451
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sat 4/18
8:12 pm-2:39 pm
1 stop18h 27m
$171
Showing 1-10 of 18 results
Best time to book a flight from St. Louis to Playa del Carmen
Have a flexible travel schedule? Discover the best time to fly to Playa del Carmen from St. Louis with our price prediction graph.
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 Playa del Carmen
STL-PL9
STL-CUN
How far ahead should I book a flight from St. Louis to Playa del Carmen?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Playa del Carmen. Price data was last updated on February 6, 2026.
Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Playa del Carmen. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from St. Louis to Playa del Carmen?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Playa del Carmen (average of $175). Flying from St. Louis to Playa del Carmen in January is currently the most expensive (average of $240). 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 PL9?
Find hourly flight availability from St. Louis to Playa del Carmen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 11, 2026.
When flying from St. Louis to Playa del Carmen, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from St. Louis to Playa del Carmen
Explore weekly flight availability from St. Louis to Playa del Carmen. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 11, 2026.
The most flights from STL to PL9 are scheduled on a Monday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).
Reviews of airlines servicing Playa del Carmen
Get insights into the airlines that provide service to Playa del Carmen. 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 Playa del Carmen. Reviews last updated February 11, 2026.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from St. Louis to Playa del Carmen. 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.
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Playa del Carmen. 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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St. Louis and Playa del Carmen flights
Browse other St. Louis and Playa del Carmen flight options. Last updated on February 11, 2026.
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St. Louis to Playa del Carmen flights
Consider these flights traveling from St. Louis to Playa del Carmen.
Top 7 airlines flying from St. Louis to Playa del Carmen
Discover the top 7 airlines that operate flights from St. Louis to Playa del Carmen. 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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$506 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$174 | Average$372 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$199 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$201 | Average$403 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$314 | Average$566 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$412 | Average$637 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$500 | Average$640 | FlexibilityNo cancel fee | On-time63% |