HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tulum

$124+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CUN
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 April or January, booked 87 days in advance, depart on a Sunday or Wednesday and return on a Sunday

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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$350
(Aeromexico)

One-way from

$124
(Cheapflightsfares)

Popular in

March

Cheapest in

April

Average price

$665
Provider with most accurate pricing for Lambert-St Louis-Cancun flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Cancun flights.
Search Deals
From Lambert-St Louis to Tulum
Search Deals
One-way flight from Lambert-St Louis to Tulum
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 31, 2025.

This Aeromexico 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:00 amSTL - CUN
1 stop6h 50mAeromexico
Tue 5/1311:00 amCUN - STL
1 stop9h 39mAeromexico
Deal found 3/30$350
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1810:10 amSTL - CUN
1 stop25h 03mSpirit Airlines
Fri 5/2312:18 pmCUN - STL
1 stop20h 57mSpirit Airlines
Deal found 3/30$356
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:00 amSTL - CUN
2 stops12h 42mDelta
Wed 6/412:30 pmCUN - STL
1 stop8h 19mDelta
Deal found 3/31$359
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:10 amSTL - CUN
Nonstop3h 12mFrontier
Mon 5/1212:37 pmCUN - STL
Nonstop3h 23mFrontier
Deal found 3/30$378
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/206:10 pmSTL - CUN
1 stop17h 00mMultiple Airlines
Sat 4/2610:46 amCUN - STL
2 stops24h 59mMultiple Airlines
Deal found 3/30$382
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/188:30 amSTL - CUN
1 stop10h 50mUnited Airlines
Wed 5/211:43 pmCUN - STL
1 stop8h 20mUnited Airlines
Deal found 3/30$391
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:00 amSTL - CUN
Nonstop3h 28mVolaris
Tue 4/1511:46 amCUN - STL
Nonstop3h 26mVolaris
Deal found 3/30$460
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.
Sun 7/205:20 amSTL - CUN
1 stop8h 55mSouthwest
Thu 7/2411:40 amCUN - STL
2 stops10h 00mSouthwest
Deal found 3/30$551
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/217:30 amSTL - CUN
1 stop7h 55mAir Canada
Wed 5/284:35 pmCUN - STL
1 stop20h 01mAir Canada
Deal found 3/30$580

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 March 31, 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

Tue 5/6

6:00 am-12:50 pm

1 stop6h 50m

Cancun

Tue 5/13

11:00 am-8:39 pm

1 stop9h 39m

$350

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 5/18

10:10 am-11:13 am

1 stop25h 03m

Cancun

Fri 5/23

12:18 pm-9:15 am

1 stop20h 57m

$356

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Wed 5/28

6:00 am-6:42 pm

2 stops12h 42m

Cancun

Wed 6/4

12:30 pm-8:49 pm

1 stop8h 19m

$359

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Thu 5/8

6:10 am-9:22 am

Nonstop3h 12m

Cancun

Mon 5/12

12:37 pm-4:00 pm

Nonstop3h 23m

$378

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 4/20

6:10 pm-11:10 am

1 stop17h 00m

Cancun

Sat 4/26

10:46 am-11:45 am

2 stops24h 59m

$382

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 5/18

8:30 am-7:20 pm

1 stop10h 50m

Cancun

Wed 5/21

1:43 pm-10:03 pm

1 stop8h 20m

$391

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 7/20

5:20 am-2:15 pm

1 stop8h 55m

Cancun

Thu 7/24

11:40 am-9:40 pm

2 stops10h 00m

$551

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Wed 5/21

7:30 am-3:25 pm

1 stop7h 55m

Cancun

Wed 5/28

4:35 pm-12:36 pm

1 stop20h 01m

$580

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sat 6/21

5:31 am-12:00 pm

1 stop6h 29m

Cancun

Sat 6/28

6:05 pm-12:15 am

1 stop6h 10m

$611

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Tue 4/15

6:10 pm-11:10 am

1 stop17h 00m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 17 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 March 28, 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 87 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 March 31, 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 March 30, 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.

Rainfall in Tulum by month

Plan your trip to Tulum by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Tulum ranges from 1.1 - 11.1 inches per month. October is typically the wettest month, when rainfall can reach 11.1 in. April is typically the driest time to visit Tulum when rainfall is around 1.1 in.

Temperature in Tulum by month

Plan your trip to Tulum by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Tulum, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 75.2 F).

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 March 31, 2025.
See what other customers who have flown with Southwest, Delta and Aeromexico from St. Louis to Tulum have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,275 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,275 reviews
Southwest
8.0
Very good
4,275 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,899 reviews
Southwest
8.0
Very good
4,275 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Aeromexico
7.5
Good
1,700 reviews
Southwest
8.0
Very good
4,275 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,614 reviews
Southwest
8.0
Very good
4,275 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,275 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 1 outbound flight to Tulum per day. You should also have plenty of airline options to choose from since 7 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 15 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 $124. Delta flights start at $164 while deals on Frontier start at $178 one-way.

  • What are the most reliable airlines from St. Louis to Tulum?

    Consider American Airlines (89%), Frontier (82%) or Southwest (81%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Tulum.

  • 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 $401, our data indicates the cheapest price to be $174. The most popular route (Lambert-St Louis - Cancun), is priced around $337.

  • 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

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.

Top 7 airlines flying from St. Louis to Tulum

Discover the top 7 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$175Average$382FlexibilityNo cancel feeOn-time79%
FrontierCheapest$285Average$496FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$331Average$523FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$370Average$522FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$387Average$595FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$425Average$589FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$517Average$690FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.