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Tulum

$120+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CUN
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Tulum are usually found in April or August, booked 59 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap 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 July 30, 2025.

Round-trip from

$303
(FlightHub)

One-way from

$120
(Cheapflightsfares)

Popular in

March

Cheapest in

April

Average price

$517
From Lambert-St Louis to Tulum
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One-way flight from Lambert-St Louis to Tulum
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Highest demand for flights based on searches. 2% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from St. Louis to Tulum

Cheapest flights from St. Louis to Tulum
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 July 30, 2025.

This FlightHub deal was found by Cheapflights users on 7/30. 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.
Sun 9/1410:35 amSTL - CUN
1 stop26h 24mSpirit Airlines
Sat 9/209:40 amCUN - STL
1 stop25h 10mSpirit Airlines
Deal found 7/30$303
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:21 amSTL - CUN
Nonstop3h 13mFrontier
Sun 9/212:49 pmCUN - STL
Nonstop3h 21mFrontier
Deal found 7/29$304
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:15 amSTL - CUN
1 stop5h 40mAmerican Airlines
Fri 8/2210:45 amCUN - STL
1 stop13h 14mAmerican Airlines
Deal found 7/30$362
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/1410:21 amSTL - CUN
Nonstop3h 13mMultiple Airlines
Wed 9/172:07 pmCUN - STL
2 stops20h 43mMultiple Airlines
Deal found 7/30$370

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 July 30, 2025.
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 9/14

10:35 am-12:59 pm

1 stop26h 24m

Cancun

Sat 9/20

9:40 am-10:50 am

1 stop25h 10m

$303

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 9/14

10:21 am-1:34 pm

Nonstop3h 13m

Cancun

Sun 9/21

2:49 pm-6:10 pm

Nonstop3h 21m

$304

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Tue 8/19

5:15 am-10:55 am

1 stop5h 40m

Cancun

Fri 8/22

10:45 am-11:59 pm

1 stop13h 14m

$362

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 9/14

10:21 am-1:34 pm

Nonstop3h 13m

Cancun

Wed 9/17

2:07 pm-10:50 am

2 stops20h 43m

$370

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Tue 10/28

7:37 pm-11:33 am

1 stop15h 56m

$120

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Mon 10/20

10:22 am-1:35 pm

Nonstop3h 13m

$129

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Thu 10/16

9:47 am-8:55 am

1 stop23h 08m

$146

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Mon 9/29

6:01 am-11:25 am

1 stop5h 24m

$188

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Tue 9/30

6:20 am-4:00 pm

2 stops9h 40m

$191

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Mon 9/1

10:20 am-12:59 am

2 stops14h 39m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 11 results
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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 July 25, 2025.

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 59 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, January is the cheapest month in which you can book a flight from St. Louis to Tulum (average of $360). Flying from St. Louis to Tulum in March is currently the most expensive (average of $492). 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 July 30, 2025.

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.

What is the cheapest day to fly from St. Louis to Tulum?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Tulum. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their St. Louis to Tulum flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 30, 2025.

The most flights from STL to TU9 are scheduled on a Monday (3 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 July 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and Aeromexico 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.
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Aeromexico
7.5
Good
1,721 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

  • What airport do you fly from for flights from St. Louis to Tulum?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Tulum. You should not have trouble finding flights to Tulum from Lambert-St Louis; the airport handles an average of 2 outbound flights to Tulum per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the St. Louis airport to Tulum. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • How popular is this St. Louis to Tulum flight route?

    Flights from Lambert-St Louis to Tulum have been viewed 21 times in the past calendar month.

  • What are the cheapest airlines to fly from St. Louis to Tulum one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $120. Frontier flights start at $129 while deals on Delta start at $188 one-way.

  • What are the cheapest flights from St. Louis to Tulum?

    Looking for the cheapest flight from St. Louis to Tulum? While on average our users pay $404, our data indicates the cheapest price to be $183. The most popular route (Lambert-St Louis - Cancun), is priced around $303.

  • Can I find deals for flights from St. Louis to Tulum that include hotel bookings?

    Yes. In addition to deals on St. Louis to Tulum flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Tulum?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Tulum.

  • Can I find deals for business class flights from St. Louis to Tulum?

    Yes. Cheapflights offers flight deals from St. Louis to Tulum by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Tulum?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Tulum (average of $360). Flying from St. Louis to Tulum in March is currently the most expensive (average of $492). 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.

See more FAQs

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$132Average$293FlexibilityNo cancel feeOn-time65%
VolarisCheapest$174Average$367FlexibilityNo cancel feeOn-time79%
FrontierCheapest$293Average$483FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$346Average$524FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$358Average$517FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$387Average$605FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$440Average$624FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$510Average$671FlexibilityNo cancel feeOn-time63%

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