$124+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CUN
May 2 — May 91
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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 Tuesday
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 April 2, 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 April 2, 2026.
This Priceline deal was found by Cheapflights users on 4/1. 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.
Wed 4/158:23 pm
STL
- CUN
1 stop18h 33m
Frontier
Sat 4/182:36 pm
CUN
- STL
1 stop8h 43m
Frontier
Deal found 4/1![Frontier logo]()
$341
This Frontier deal was found by Cheapflights users on 3/31. 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 4/188:17 pm
STL
- CUN
2 stops18h 39m
Frontier
Thu 4/231:01 pm
CUN
- STL
2 stops17h 49m
Frontier
Deal found 3/31![Frontier logo]()
$343
This Frontier deal was found by Cheapflights users on 4/1. 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.
Sun 5/38:06 pm
STL
- CUN
2 stops18h 50m
Frontier
Fri 5/81:14 pm
CUN
- STL
2 stops19h 41m
Frontier
Deal found 4/1![Frontier logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/17:01 pm
STL
- CUN
1 stop13h 36m
Multiple Airlines
Wed 5/611:13 am
CUN
- STL
Nonstop3h 26m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Sun 5/248:08 pm
STL
- CUN
1 stop15h 56m
Frontier
Wed 5/273:39 pm
CUN
- STL
1 stop27h 44m
Frontier
Deal found 3/30![Frontier logo]()
$346
This FlightHub deal was found by Cheapflights users on 3/31. 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.
Sat 5/98:08 pm
STL
- CUN
1 stop15h 56m
Frontier
Sat 5/1611:13 am
CUN
- STL
Nonstop3h 26m
Frontier
Deal found 3/31![Frontier logo]()
$347
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:23 pm
STL
- CUN
1 stop16h 23m
Frontier
Tue 4/2811:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/30![Frontier logo]()
$348
This Frontier deal was found by Cheapflights users on 3/31. 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 4/258:23 pm
STL
- CUN
2 stops15h 38m
Frontier
Mon 5/410:34 am
CUN
- STL
2 stops12h 45m
Frontier
Deal found 3/31![Frontier logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/188:23 pm
STL
- CUN
2 stops15h 38m
Frontier
Fri 4/244:07 pm
CUN
- STL
1 stop14h 43m
Frontier
Deal found 3/31![Frontier logo]()
$352
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:16 pm
STL
- CUN
1 stop15h 08m
Frontier
Mon 4/139:12 am
CUN
- STL
1 stop14h 13m
Frontier
Deal found 3/30![Frontier logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/178:06 pm
STL
- CUN
1 stop18h 33m
Frontier
Tue 4/2811:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/31![Frontier logo]()
$354
This Expedia deal was found by Cheapflights users on 4/1. 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 5/154:19 pm
STL
- CUN
1 stop23h 38m
Frontier
Fri 5/223:39 pm
CUN
- STL
1 stop27h 44m
Frontier
Deal found 4/1![Frontier logo]()
$355
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 April 2, 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 April 2, 2026.
This Delta deal was found by Cheapflights users on 4/1. 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 5/36:20 am
STL
- CUN
2 stops12h 15m
Delta
Tue 5/511:00 am
CUN
- STL
1 stop6h 44m
Delta
Deal found 4/1![Delta logo]()
$398
This Southwest deal was found by Cheapflights users on 3/29. 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.
Tue 4/287:35 am
STL
- CUN
1 stop7h 30m
Southwest
Tue 5/53:50 pm
CUN
- STL
Nonstop3h 10m
Southwest
Deal found 3/29![Southwest logo]()
$479
This Delta deal was found by Cheapflights users on 4/1. 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 5/49:59 am
STL
- CUN
1 stop10h 16m
Delta
Fri 5/89:14 am
CUN
- STL
2 stops14h 07m
Delta
Deal found 4/1![Delta logo]()
$398
This Delta deal was found by Cheapflights users on 4/1. 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 4/286:20 am
STL
- CUN
2 stops12h 15m
Delta
Tue 5/53:15 pm
CUN
- STL
1 stop6h 04m
Delta
Deal found 4/1![Delta logo]()
$398
This Delta deal was found by Cheapflights users on 4/1. 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 4/199:59 am
STL
- CUN
1 stop10h 16m
Delta
Thu 4/2312:25 pm
CUN
- STL
2 stops11h 11m
Delta
Deal found 4/1![Delta logo]()
$431
This Southwest deal was found by Cheapflights users on 3/30. 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.
Tue 4/1410:05 am
STL
- CUN
Nonstop3h 05m
Southwest
Thu 4/301:20 pm
CUN
- STL
1 stop7h 35m
Southwest
Deal found 3/30![Southwest logo]()
$607
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:00 am
STL
- CUN
2 stops12h 35m
Delta
Sat 5/211:30 am
CUN
- STL
2 stops12h 06m
Delta
Deal found 3/30![Delta logo]()
$515
This Southwest deal was found by Cheapflights users on 3/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:05 am
STL
- CUN
2 stops7h 55m
Southwest
Mon 9/141:40 pm
CUN
- STL
2 stops8h 25m
Southwest
Deal found 3/28![Southwest logo]()
$624
This Delta deal was found by Cheapflights users on 3/28. 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.
Thu 9/31:30 pm
STL
- CUN
1 stop6h 38m
Delta
Sat 9/1211:24 am
CUN
- STL
2 stops11h 37m
Delta
Deal found 3/28![Delta logo]()
$579
This Delta deal was found by Cheapflights users on 3/29. 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.
Wed 7/226:00 am
STL
- CUN
2 stops11h 30m
Delta
Fri 7/3112:35 pm
CUN
- STL
1 stop8h 02m
Delta
Deal found 3/29![Delta logo]()
$609
Last-minute flights from St. Louis to Playa del CarmenDiscover last-minute flight deals from St. Louis to Playa del Carmen. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Playa del Carmen. Data last updated April 2, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:16 pm
STL
- CUN
1 stop15h 08m
Frontier
Mon 4/139:12 am
CUN
- STL
1 stop14h 13m
Frontier
Deal found 3/30![Frontier logo]()
$353
This Priceline deal was found by Cheapflights users on 4/1. 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.
Wed 4/158:23 pm
STL
- CUN
1 stop18h 33m
Frontier
Sat 4/182:36 pm
CUN
- STL
1 stop8h 43m
Frontier
Deal found 4/1![Frontier logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/178:06 pm
STL
- CUN
1 stop18h 33m
Frontier
Thu 4/2311:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/31![Frontier logo]()
$354
This Frontier deal was found by Cheapflights users on 3/31. 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 4/188:17 pm
STL
- CUN
2 stops18h 39m
Frontier
Thu 4/231:01 pm
CUN
- STL
2 stops17h 49m
Frontier
Deal found 3/31![Frontier logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/188:23 pm
STL
- CUN
2 stops15h 38m
Frontier
Fri 4/244:07 pm
CUN
- STL
1 stop14h 43m
Frontier
Deal found 3/31![Frontier logo]()
$352
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:23 pm
STL
- CUN
1 stop16h 23m
Frontier
Tue 4/2811:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/30![Frontier logo]()
$348
This Frontier deal was found by Cheapflights users on 3/31. 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 4/258:23 pm
STL
- CUN
2 stops15h 38m
Frontier
Mon 5/410:34 am
CUN
- STL
2 stops12h 45m
Frontier
Deal found 3/31![Frontier logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/17:01 pm
STL
- CUN
1 stop13h 36m
Multiple Airlines
Wed 5/611:13 am
CUN
- STL
Nonstop3h 26m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$345
This Frontier deal was found by Cheapflights users on 4/1. 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.
Sun 5/38:06 pm
STL
- CUN
2 stops18h 50m
Frontier
Fri 5/81:14 pm
CUN
- STL
2 stops19h 41m
Frontier
Deal found 4/1![Frontier logo]()
$344
This FlightHub deal was found by Cheapflights users on 3/31. 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.
Sat 5/98:08 pm
STL
- CUN
1 stop15h 56m
Frontier
Sat 5/1611:13 am
CUN
- STL
Nonstop3h 26m
Frontier
Deal found 3/31![Frontier logo]()
$347
This Expedia deal was found by Cheapflights users on 4/1. 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 5/154:19 pm
STL
- CUN
1 stop23h 38m
Frontier
Fri 5/223:39 pm
CUN
- STL
1 stop27h 44m
Frontier
Deal found 4/1![Frontier logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Sun 5/248:08 pm
STL
- CUN
1 stop15h 56m
Frontier
Wed 5/273:39 pm
CUN
- STL
1 stop27h 44m
Frontier
Deal found 3/30![Frontier logo]()
$346
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 April 2, 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 April 2, 2026.
This Frontier deal was found by Cheapflights users on 3/31. 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 4/216:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 3/31![Frontier logo]()
$124
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:23 pm
STL
- CUN
1 stop16h 23m
Frontier
Deal found 3/30![Frontier logo]()
$126
This Frontier deal was found by Cheapflights users on 4/1. 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 4/226:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 4/1![Frontier logo]()
$133
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:23 pm
STL
- CUN
1 stop18h 33m
Frontier
Deal found 3/28![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/258:23 pm
STL
- CUN
2 stops15h 38m
Frontier
Deal found 3/31![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Mon 4/273:21 pm
STL
- CUN
1 stop17h 16m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Sun 5/248:08 pm
STL
- CUN
1 stop15h 56m
Frontier
Deal found 3/28![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 5/28:23 pm
STL
- CUN
1 stop18h 33m
Frontier
Deal found 3/31![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/3011:21 am
STL
- CUN
2 stops23h 17m
Frontier
Deal found 3/31![Frontier logo]()
$170
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 April 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $341 (Priceline) |
One-way from | $124 (Frontier) |
Popular in | March |
Cheapest in | September |
Average price | $459 |
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 April 2, 2026.
Use the filters below to find and compare flights from St. Louis to Playa del Carmen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 5/3
6:20 am-6:35 pm
2 stops12h 15m
Cancun
Tue 5/5
11:00 am-5:44 pm
1 stop6h 44m
$398
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Mon 5/4
9:59 am-8:15 pm
1 stop10h 16m
Cancun
Fri 5/8
9:14 am-11:21 pm
2 stops14h 07m
$398
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Tue 4/28
6:20 am-6:35 pm
2 stops12h 15m
Cancun
Tue 5/5
3:15 pm-9:19 pm
1 stop6h 04m
$398
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 4/19
9:59 am-8:15 pm
1 stop10h 16m
Cancun
Thu 4/23
12:25 pm-11:36 pm
2 stops11h 11m
$431
Quickest round-trip
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Tue 4/28
7:35 am-3:05 pm
1 stop7h 30m
Cancun
Tue 5/5
3:50 pm-7:00 pm
Nonstop3h 10m
$479
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Mon 4/27
6:00 am-6:35 pm
2 stops12h 35m
Cancun
Sat 5/2
11:30 am-11:36 pm
2 stops12h 06m
$515
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Thu 9/3
1:30 pm-8:08 pm
1 stop6h 38m
Cancun
Sat 9/12
11:24 am-11:01 pm
2 stops11h 37m
$579
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Tue 4/14
10:05 am-1:10 pm
Nonstop3h 05m
Cancun
Thu 4/30
1:20 pm-8:55 pm
1 stop7h 35m
$607
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Wed 7/22
6:00 am-5:30 pm
2 stops11h 30m
Cancun
Fri 7/31
12:35 pm-8:37 pm
1 stop8h 02m
$609
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Wed 9/9
7:05 am-3:00 pm
2 stops7h 55m
Cancun
Mon 9/14
1:40 pm-10:05 pm
2 stops8h 25m
$624
Showing 1-10 of 21 resultsSorted by cheapest first
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 March 13, 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, October is the cheapest month in which you can book a flight from St. Louis to Playa del Carmen (average of $186). Flying from St. Louis to Playa del Carmen in April is currently the most expensive (average of $292). 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 April 2, 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 April 2, 2026.
The most flights from STL to PL9 are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from St. Louis to Playa del Carmen?
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 April 2, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican 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.
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from St. Louis
Popular flights
Top destinations
Alternative routes for St. Louis to Playa del Carmen
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Playa del Carmen by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Playa del Carmen by cabin class
Find flights from St. Louis to Playa del Carmen, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Playa del Carmen flights
Browse other St. Louis and Playa del Carmen flight options. Last updated on April 2, 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 April 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Playa del Carmen flights
Consider these flights traveling from St. Louis to Playa del Carmen.
Top 8 airlines flying from St. Louis to Playa del Carmen
Discover the top 8 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 April 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$472 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$180 | Average$375 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$196 | Average$464 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$409 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$330 | Average$561 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$404 | Average$468 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$412 | Average$617 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$477 | Average$630 | FlexibilityNo cancel fee | On-time63% |