$93+ Cheap flights from St. Louis (STL) to Tulum, 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CUN
Feb 27 — Mar 61
1 adult, Economy
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Find cheap flights from St. Louis to Tulum 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 Tulum are usually found in September or October, booked 18 days in advance, depart on a Monday or Wednesday and return on a Thursday
Cheap flight deals from St. Louis to Tulum
Cheapest flights from St. Louis to TulumExplore the most affordable flight options available from St. Louis to Tulum. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.
Explore the most affordable flight options available from St. Louis to Tulum. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/203:49 pm
STL
- CUN
1 stop15h 01m
Multiple Airlines
Wed 2/2510:13 am
CUN
- STL
1 stop13h 14m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$322
This Expedia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia 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
Mon 3/912:15 pm
CUN
- STL
1 stop11h 04m
Frontier
Deal found 1/27![Frontier logo]()
$328
This CheapOair deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:13 pm
STL
- CUN
1 stop16h 13m
Frontier
Wed 4/2911:44 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 1/27![Frontier logo]()
$329
This Priceline deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/203:49 pm
STL
- CUN
1 stop15h 01m
Frontier
Wed 2/2511:42 am
CUN
- STL
Nonstop3h 27m
Frontier
Deal found 1/27![Frontier logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/68:22 pm
STL
- CUN
1 stop17h 58m
Frontier
Fri 2/132:47 pm
CUN
- STL
1 stop17h 04m
Frontier
Deal found 1/26![Frontier logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/233:49 pm
STL
- CUN
1 stop16h 29m
Multiple Airlines
Mon 3/22:47 pm
CUN
- STL
2 stops32h 40m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/173:49 pm
STL
- CUN
1 stop16h 29m
Multiple Airlines
Tue 2/242:00 pm
CUN
- STL
2 stops33h 27m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$336
This FlightHub deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
- CUN
1 stop11h 34m
Frontier
Sat 3/72:22 pm
CUN
- STL
1 stop16h 35m
Frontier
Deal found 1/27![Frontier logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
- CUN
1 stop11h 34m
Multiple Airlines
Wed 3/119:13 am
CUN
- STL
1 stop14h 06m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$342
Find flight deals from St. Louis to Tulum
Keep the following information in mind while searching for St. Louis to Tulum flight deals. Data was last updated January 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $322 (Kiwi.com) |
One-way from | $93 (Super.com) |
Popular in | March |
Cheapest in | September |
Average price | $415 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Tulum 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 January 28, 2026.
Use the filters below to find and compare flights from St. Louis to Tulum that are best for you.
Fly from
St. Louis
Fly to
Tulum
Route
Depart
Return
Price
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 3/8
6:00 am-9:30 am
Nonstop3h 30m
Cancun
Sat 3/14
11:14 am-2:41 pm
Nonstop3h 27m
$365
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 4/19
7:25 am-8:14 pm
1 stop12h 49m
Cancun
Thu 4/23
9:15 am-11:13 pm
2 stops13h 58m
$384
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 4/5
6:29 am-6:40 pm
2 stops12h 11m
Cancun
Thu 4/9
3:10 pm-11:25 pm
1 stop8h 15m
$412
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sat 2/28
7:45 am-11:55 am
Nonstop3h 10m
Cancun
Thu 3/5
9:50 am-12:00 pm
Nonstop3h 10m
$416
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Sun 3/1
11:45 am-4:00 pm
Nonstop3h 15m
Cancun
Fri 3/6
9:50 am-12:00 pm
Nonstop3h 10m
$419
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Wed 5/20
6:00 am-8:03 pm
1 stop14h 03m
Cancun
Fri 5/22
8:05 am-11:38 pm
2 stops15h 33m
$434
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Wed 2/18
8:17 pm-8:51 am
1 stop11h 34m
$126
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Thu 5/7
8:12 pm-2:39 pm
1 stop18h 27m
$165
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Mon 5/4
11:43 am-11:20 am
2 stops23h 37m
$182
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
Wed 4/29
6:00 am-12:40 pm
1 stop6h 40m
$182
Showing 1-10 of 17 results
Best time to book a flight from St. Louis to Tulum
Have a flexible travel schedule? Discover the best time to fly to Tulum from St. Louis with our price prediction graph.
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 Tulum
How far ahead should I book a flight from St. Louis to Tulum?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Tulum. Price data was last updated on January 23, 2026.
The price you pay for your flight from St. Louis to Tulum may vary depending on when you book. For the best chance of a lower fare, look to book 18 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 Tulum?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Tulum (average of $156). Flying from St. Louis to Tulum in July is currently the most expensive (average of $226). 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 TU9?
Find hourly flight availability from St. Louis to Tulum. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 28, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Tulum as you normally would.
Weekly flight availability from St. Louis to Tulum
Explore weekly flight availability from St. Louis to Tulum. 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 January 28, 2026.
The most flights from STL to TU9 are scheduled on a Monday (2 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
Reviews of airlines servicing Tulum
Get insights into the airlines that provide service to Tulum. 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 Tulum. Reviews last updated January 28, 2026.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from St. Louis to Tulum to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
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 Tulum. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Tulum
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from St. Louis to Tulum
Discover the top 8 airlines that operate flights from St. Louis to Tulum. 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 January 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$130 | Average$292 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$174 | Average$370 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$196 | Average$408 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$196 | Average$481 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$239 | Average$506 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$330 | Average$587 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$416 | Average$645 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$505 | Average$646 | FlexibilityNo cancel fee | On-time63% |