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$100+ Cheap flights from St. Louis (STL) to Cancún (CUN)

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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CUN
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Lambert-St Louis to Cancun are usually found in January or February, booked 49 days in advance, depart on a Sunday or Tuesday and return on a Monday

Cheap flight deals from St. Louis to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Cancún (CUN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$337
(CheapOair)

One-way from

$100
(Expedia)

Popular in

March

Cheapest in

January

Average price

$533
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 Cancun
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One-way flight from Lambert-St Louis to Cancun
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High demand for flights, 0% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from St. Louis to Cancún

Cheapest flights from St. Louis to Cancún
Explore the most affordable flight options available from St. Louis to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/18. 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 12/314:27 pmSTL - CUN
1 stop18h 51mMultiple Airlines
Thu 1/912:19 pmCUN - STL
Nonstop3h 15mMultiple Airlines
Deal found 12/18$426
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 12/306:00 amSTL - CUN
Nonstop3h 26mFrontier
Thu 1/912:19 pmCUN - STL
Nonstop3h 15mFrontier
Deal found 12/18$446
This CheapOair deal was found by Cheapflights users on 12/18. 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 12/314:27 pmSTL - CUN
2 stops15h 47mSpirit Airlines
Tue 1/710:25 amCUN - STL
1 stop5h 56mSpirit Airlines
Deal found 12/18$536
This Delta deal was found by Cheapflights users on 12/17. 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 12/246:04 amSTL - CUN
1 stop8h 11mDelta
Sun 12/2912:45 pmCUN - STL
1 stop10h 21mDelta
Deal found 12/17$651
This United deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:00 amSTL - CUN
1 stop13h 18mUnited Airlines
Wed 1/14:49 pmCUN - STL
1 stop8h 10mUnited Airlines
Deal found 12/17$676
This American Airlines deal was found by Cheapflights users on 12/18. 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.
Wed 12/255:21 amSTL - CUN
1 stop8h 47mAmerican Airlines
Wed 1/111:40 amCUN - STL
1 stop13h 11mAmerican Airlines
Deal found 12/18$736
This Southwest deal was found by Cheapflights users on 12/17. 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 12/188:50 amSTL - CUN
Nonstop3h 20mSouthwest
Sat 12/2111:55 amCUN - STL
Nonstop3h 35mSouthwest
Deal found 12/17$870

Find flights from St. Louis to Cancún within your budget

Customize your flight search to find flights from St. Louis to Cancún 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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 1/26

6:25 am-10:50 am

Nonstop3h 25m

Cancun

Wed 1/29

1:10 pm-2:43 pm

1 stop26h 33m

$337

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sat 2/22

6:54 pm-1:55 pm

1 stop18h 01m

Cancun

Sat 3/1

10:15 am-11:43 pm

1 stop14h 28m

$341

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Thu 1/23

4:28 pm-9:13 am

2 stops39h 45m

Cancun

Mon 1/27

1:10 pm-2:43 pm

1 stop26h 33m

$379

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Wed 1/22

6:00 am-11:38 pm

2 stops16h 38m

Cancun

Tue 1/28

1:09 pm-11:37 pm

2 stops11h 28m

$387

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Mon 1/13

6:30 am-2:10 pm

1 stop6h 40m

Cancun

Wed 3/12

5:30 am-8:54 pm

1 stop15h 24m

$429

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 3/2

6:00 am-5:15 pm

1 stop10h 15m

Cancun

Fri 3/7

7:59 am-8:01 pm

2 stops13h 02m

$476

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sat 1/25

7:09 pm-1:20 pm

1 stop17h 11m

$100

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Sun 1/26

4:28 pm-12:05 pm

1 stop18h 37m

$123

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Wed 2/19

5:20 pm-9:09 am

1 stop14h 49m

$136

St. LouisCancún

STL - CUN

STLCUN

Lambert-St Louis

Wed 2/26

7:15 am-4:30 pm

1 stop8h 15m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 16 results
1
2

Compare providers for flights from St. Louis to Cancún

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Cancún in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Cancún flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Cancún flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Cancún flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Cancún flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Cancún flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún 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.

Travel insights for flights from St. Louis to Cancún

Get recent, data-driven insights about flights from St. Louis to Cancún including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Cancún?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Cancún. Price data was last updated on December 13, 2024.

The price you pay for your flight from St. Louis to Cancún may vary depending on when you book. For the best chance of a lower fare, look to book 49 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 Cancún?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Cancún (average of $360). Flying from St. Louis to Cancún in June is currently the most expensive (average of $462). 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 CUN?

Find hourly flight availability from St. Louis to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

Unlike in the morning, when flights are generally more expensive, you can save up to 42% on flights from St. Louis to Cancún by exploring options for tickets at noon.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Cancún. Price data was last updated on December 16, 2024.

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

Weekly flight availability from St. Louis to Cancún

Explore weekly flight availability from St. Louis to Cancún. 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 December 18, 2024.

The most flights from STL to CUN 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).

Rainfall in Cancún by month

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

In terms of precipitation, rainfall in Cancún 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 Cancún when rainfall is around 1.1 in.

Temperature in Cancún by month

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

If weather is an important factor for your trip to Cancún, 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 Cancún

Get insights into the airlines that provide service to Cancún. 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 Cancún. Reviews last updated December 18, 2024.
Get a feel of what it's like to fly with Frontier, United Airlines and Spirit Airlines from St. Louis to Cancún by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Aeromexico
7.5
Good
1,930 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Cancún. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from St. Louis to Cancún?

    Booking a flight from Lambert-St Louis (STL) to Cancun (CUN) is your only option if you wish to fly from St. Louis to Cancún. On a typical day, there is 1 flight from Lambert-St Louis to Cancun, all of which are around 3h 05m for a nonstop flight. You can also purchase a plane ticket from 8 airlines when you book a flight from Lambert-St Louis to Cancún.

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

    Within the past month, 16 users have taken a look at flights from Lambert-St Louis to Cancun.

  • What are the cheapest airlines flying from St. Louis to Cancún round-trip?

    Our cheapest airline available from St. Louis to Cancún is Frontier. Our recent data shows that you can find tickets from as low as $341 on this airline. Additional options worth looking into are Delta and Spirit Airlines, starting at $387 and $393 round-trip. Frontier is 33% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $100 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $123 and Delta from $176 one-way.

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

    No one likes to see their flight delayed. When booking a flight from St. Louis to Cancún consider choosing Southwest (95%), Frontier (88%) or American Airlines (83%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for $175. While the most popular route (Lambert-St Louis - Cancun) can be booked for $270 on average our data indicates $370 when flying from St. Louis to Cancún.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Cancún 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 Cancún?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Cancún (average of $360). Flying from St. Louis to Cancún in June is currently the most expensive (average of $462). 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

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Top 8 airlines flying from St. Louis to Cancún

Discover the top 8 airlines that operate flights from St. Louis to Cancún. 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$100Average$271FlexibilityNo cancel feeOn-time65%
VolarisCheapest$225Average$452FlexibilityNo cancel feeOn-time79%
FrontierCheapest$287Average$492FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$382Average$476FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$415Average$518FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$419Average$566FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$442Average$612FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$473Average$677FlexibilityNo cancel feeOn-time63%
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