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Tulum

$128+ 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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CUN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Tulum are usually found in September or October, booked 54 days in advance, depart on a Monday or Wednesday 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 October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$292
(Kiwi.com)

One-way from

$128
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$431
Provider with most accurate pricing for Lambert-St Louis-Cancun flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Cancun flights.
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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. 7% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 amSTL - CUN
Nonstop3h 23mFrontier
Sat 12/1311:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/30$278
This Frontier deal was found by Cheapflights users on 10/29. 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.
Tue 12/26:00 amSTL - CUN
Nonstop3h 23mFrontier
Sat 12/611:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/29$299
This Frontier deal was found by Cheapflights users on 10/29. 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.
Sat 12/66:00 amSTL - CUN
Nonstop3h 23mFrontier
Tue 12/911:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/29$318
This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:15 amSTL - CUN
Nonstop3h 18mFrontier
Sat 12/611:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/30$329
This Delta deal was found by Cheapflights users on 10/30. 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 12/86:00 amSTL - CUN
1 stop8h 33mDelta
Tue 12/168:00 amCUN - STL
1 stop11h 33mDelta
Deal found 10/30$330
This Frontier deal was found by Cheapflights users on 10/29. 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.
Sat 12/66:00 amSTL - CUN
Nonstop3h 23mFrontier
Mon 12/811:28 amCUN - STL
Nonstop3h 22mFrontier
Deal found 10/29$336
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:30 amSTL - CUN
1 stop10h 50mMultiple Airlines
Thu 12/1111:28 amCUN - STL
Nonstop3h 22mMultiple Airlines
Deal found 10/28$339
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 amSTL - CUN
Nonstop3h 23mMultiple Airlines
Thu 12/1110:10 pmCUN - STL
1 stop18h 19mMultiple Airlines
Deal found 10/30$340
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/210:17 amSTL - CUN
Nonstop3h 13mVolaris
Thu 11/63:45 pmCUN - STL
Nonstop3h 15mVolaris
Deal found 10/28$346
This Trip.com deal was found by Cheapflights users on 10/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:00 amSTL - CUN
Nonstop3h 23mMultiple Airlines
Fri 12/511:28 amCUN - STL
Nonstop3h 22mMultiple Airlines
Deal found 10/30$347
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Thu 11/137:02 pmSTL - CUN
1 stop17h 33mMultiple Airlines
Tue 11/1812:31 pmCUN - STL
2 stops21h 36mMultiple Airlines
Deal found 10/27$351

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 October 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

Wed 1/28

9:59 am-4:45 pm

1 stop5h 46m

Cancun

Wed 2/4

4:40 pm-11:39 pm

1 stop7h 59m

$330

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Mon 12/8

6:15 am-3:59 pm

1 stop8h 44m

Cancun

Fri 12/12

4:51 pm-9:58 pm

1 stop6h 07m

$330

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Tue 12/2

2:11 pm-9:20 pm

1 stop6h 09m

Cancun

Fri 12/5

11:17 am-11:42 pm

2 stops13h 25m

$330

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Wed 1/21

7:10 am-8:00 pm

2 stops11h 50m

Cancun

Wed 1/28

3:13 pm-11:39 pm

1 stop9h 26m

$330

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Mon 12/8

6:00 am-3:33 pm

1 stop8h 33m

Cancun

Tue 12/16

8:00 am-6:33 pm

1 stop11h 33m

$330

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sat 1/24

5:33 pm-9:58 am

1 stop15h 25m

Cancun

Wed 1/28

1:43 pm-8:45 pm

1 stop8h 02m

$330

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Thu 1/22

6:35 am-2:00 pm

1 stop6h 25m

Cancun

Wed 1/28

1:40 pm-8:39 pm

1 stop7h 59m

$348

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Tue 1/27

6:00 am-4:45 pm

1 stop9h 45m

Cancun

Sat 1/31

8:00 am-7:27 pm

1 stop12h 27m

$348

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Mon 1/26

5:11 pm-9:10 am

1 stop14h 59m

$136

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Tue 12/23

6:00 am-10:23 am

Nonstop3h 23m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 20 results
1
2

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 October 24, 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 54 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 $172). Flying from St. Louis to Tulum in December is currently the most expensive (average of $301). 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 October 30, 2025.

It’s optimal to fly from St. Louis to Tulum in the evening. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight at noon.

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 October 26, 2025.

Travelers seeking maximum savings on their St. Louis to Tulum flight should consider departing on Sunday 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.

How much does it cost to fly round-trip from St. Louis to Tulum?

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 October 30, 2025.
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.
Southwest
8.0
Very good
4,243 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,996 reviews
Southwest
8.0
Very good
4,243 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,034 reviews
Southwest
8.0
Very good
4,243 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Volaris
6.7
Okay
1,151 reviews
Southwest
8.0
Very good
4,243 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,123 reviews
Southwest
8.0
Very good
4,243 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 0 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 22 times in the past calendar month.

  • How long is the flight from St. Louis to Tulum?

    A quick flight from St. Louis to Tulum can take about 5h 46m. Delta provides one of the quickest options available for as low as $330. Airlines will cover a distance of 1241 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $298, our data indicates the cheapest price to be $184. The most popular route (Lambert-St Louis - Cancun), is priced around $292.

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Tulum (average of $172). Flying from St. Louis to Tulum in December is currently the most expensive (average of $301). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$130Average$293FlexibilityNo cancel feeOn-time65%
VolarisCheapest$175Average$374FlexibilityNo cancel feeOn-time79%
FrontierCheapest$243Average$437FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$252Average$509FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$315Average$523FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$376Average$598FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$476Average$636FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$512Average$663FlexibilityNo cancel feeOn-time63%

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