How many flights depart from St. Louis to Cancún on average per day?

As of July 2025, there are 3 flights per day flying from St. Louis to Cancún. The most common time of day flights depart is 6:00AM, with 95% of flights taking off at noon.

Which layover airport has the shortest connection time from St. Louis to Cancún?

Atlanta (ATL) has the shortest average layover time for this route: 2h 16m.

Which layover airport has the shortest travel time from St. Louis to Cancún?

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 3h 51m.

What airlines fly to Cancún?

Frontier, American Airlines and Southwest are the top three most popular airlines that fly to Cancún from St. Louis according to our data. Frontier is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Cancún. Keep in mind that there are 8 different airlines that fly to Cancún on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between St. Louis and Cancún?

Atlanta (ATL) was the most common stop: 57% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from St. Louis to Cancún?

Flights via Denver (DEN) offer the lowest average round-trip price of $118.

What is the cheapest airline that flies from Lambert-St Louis to Cancun?

Frontier, Spirit Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Cancun

How many flights depart from St. Louis to Cancún on average per week?

21 flights are operational weekly from St. Louis to Cancún as of July 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

When did momondo last update prices for flights from Lambert-St Louis Airport to Cancun Airport?

Prices for flights from Lambert-St Louis Airport to Cancun Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Cancun Airport?

As of July 2025, there are 8 operators available to choose from for flights from Lambert-St Louis Airport to Cancun Airport.

How old do you have to be to fly from Lambert-St Louis Airport to Cancun Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Cancun Airport.

What documentation or ID do you need to fly to Cancun Airport?

The travel and health documents required for your trip to Cancun Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cancun Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$115 Cheap Flights from St. Louis to Cancún in 2025

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Find the cheapest flights from St. Louis to Cancún

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

10:22 am - 1:35 pmSTL-CUN

3h 13mnonstop

3:50 pm - 6:07 pmCUN-STL

3h 17mnonstop

$255Frontier

Find Deal

lun., oct. 27 - lun., nov. 3

10:21 am - 1:34 pmSTL-CUN

3h 13mnonstop

2:49 pm - 6:10 pmCUN-STL

3h 21mnonstop

$258Frontier

Find Deal

lun., sep. 22 - lun., sep. 29

10:22 am - 2:35 pmSTL-CUN

3h 13mnonstop

3:50 pm - 6:07 pmCUN-STL

3h 17mnonstop

$264Frontier

Find Deal

lun., nov. 3 - jue., nov. 6

10:21 am - 1:34 pmSTL-CUN

3h 13mnonstop

2:49 pm - 6:10 pmCUN-STL

3h 21mnonstop

$266Frontier

Find Deal

dom., sep. 14 - lun., sep. 22

10:26 am - 1:46 pmSTL-CUN

3h 20mnonstop

2:49 pm - 6:10 pmCUN-STL

3h 21mnonstop

$267Frontier

Find Deal

dom., ago. 31 - dom., sep. 7

10:22 am - 2:35 pmSTL-CUN

3h 13mnonstop

3:50 pm - 6:07 pmCUN-STL

3h 17mnonstop

$272Frontier

Find Deal

jue., nov. 13 - dom., nov. 16

10:35 am - 12:59 pmSTL-CUN

26h 24m1 stop

9:40 am - 10:50 amCUN-STL

25h 10m1 stop

$303Spirit Airlines

Find Deal

dom., sep. 7 - sáb., sep. 13

5:26 pm - 11:20 amSTL-CUN

17h 54m1 stop

1:42 pm - 9:40 amCUN-STL

19h 58m1 stop

$316Spirit Airlines

Find Deal

dom., ago. 10 - mié., ago. 20

12:05 pm - 8:11 amSTL-CUN

20h 06m2 stops

2:07 pm - 10:50 amCUN-STL

20h 43m2 stops

$317Spirit Airlines

Find Deal

dom., sep. 7 - sáb., sep. 13

9:47 am - 12:33 pmSTL-CUN

26h 46m2 stops

2:50 pm - 6:07 pmCUN-STL

3h 17mnonstop

$323

Find Deal

jue., oct. 23 - lun., oct. 27

Spirit Airlines flights from St. Louis to Cancún

Our best Spirit Airlines deals on St. Louis to Cancún flight tickets

Spirit Airlines

Sep 7

STL10:35 amLambert-St Louis

26h 24m

1 stop

CUN12:59 pmCancun

Sep 13

CUN9:40 amCancun

25h 10m

1 stop

STL10:50 amLambert-St Louis

$303

Find similar

Spirit Airlines

Aug 10

STL5:26 pmLambert-St Louis

17h 54m

1 stop

CUN11:20 amCancun

Aug 20

CUN1:42 pmCancun

19h 58m

1 stop

STL9:40 amLambert-St Louis

$316

Find similar

Spirit Airlines

Sep 7

STL12:05 pmLambert-St Louis

20h 06m

2 stops

CUN8:11 amCancun

Sep 13

CUN2:07 pmCancun

20h 43m

2 stops

STL10:50 amLambert-St Louis

$317

Find similar

Frontier flights from St. Louis to Cancún

Our best Frontier deals on St. Louis to Cancún flight tickets

Frontier

Oct 27

STL10:22 amLambert-St Louis

3h 13m

CUN1:35 pmCancun

Nov 3

CUN3:50 pmCancun

3h 17m

STL6:07 pmLambert-St Louis

$255

Find similar

Frontier

Sep 22

STL10:21 amLambert-St Louis

3h 13m

CUN1:34 pmCancun

Sep 29

CUN2:49 pmCancun

3h 21m

STL6:10 pmLambert-St Louis

$258

Find similar

Frontier

Nov 3

STL10:22 amLambert-St Louis

3h 13m

CUN2:35 pmCancun

Nov 6

CUN3:50 pmCancun

3h 17m

STL6:07 pmLambert-St Louis

$264

Find similar

How to get the cheapest flight ticket from St. Louis to Cancún

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between St. Louis and Cancún?

What is the cheapest month to fly to Cancún?

If you don’t want to visit Cancún in April, then you should wait until August to fly from St. Louis, when ticket prices are also cheap, with an average price of $475.

What is the cheapest day to depart on your flight to Cancún?

The cheapest day to depart from St. Louis to Cancún is on a Tuesday when prices can be found for as low as $474. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $546. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

What is the cheapest time of day to depart on your flight to Cancún?

Our most recent data shows that the best time of day to fly to Cancún is in the evening. Flights from St. Louis to Cancún during this time can be as low as $367. Flights to Cancún are more costly at noon, with an average ticket price of $864. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Lambert-St Louis to Cancun flight route?

Fly from Lambert-St Louis to Cancun for the best Lambert-St Louis - Cancun flight prices

How far in advance should I book a flight to Cancún?

You are more likely to see cheaper flights to Cancún from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around $522 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from St. Louis for as low as $465 on momondo.

What cabin class options are available on Lambert-St Louis to Cancun flights?

There are 2 cabin classes available to choose from on Lambert-St Louis to Cancun flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Cancún flights?

You could potentially save up to 7% on your flight if you consider stops on a St. Louis to Cancún flight.

How have St. Louis to Cancún flight prices changed over time?

As of July 2025, prices for St. Louis to Cancún flights are approximately 13% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Cancún

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Cancún according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Cancún (STL to CUN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Cancún

Best Price Found	$115
Fastest flight time	3h 13m
Direct flights	Every day
Airports in Cancún	1 airport

The best one-way flight to Cancún from St. Louis in the past 72 hours is $115. The best round-trip flight deal from St. Louis to Cancún found on momondo in the last 72 hours is $255.

The fastest flight from St. Louis to Cancún takes 3h 13m

Direct flights go from St. Louis to Cancún every day.

There is 1 airport near Cancún: Cancun (CUN)

Search flight deals

How far is Lambert-St Louis to Cancun by plane?
Cancun is 1222.8 mi away from Lambert-St Louis. Typically, this will take 3h 13m by plane in normal conditions.
When did momondo last update prices for flights from Lambert-St Louis Airport to Cancun Airport?
Prices for flights from Lambert-St Louis Airport to Cancun Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Cancun Airport?
As of July 2025, there are 8 operators available to choose from for flights from Lambert-St Louis Airport to Cancun Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Cancun Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Cancun Airport.
What documentation or ID do you need to fly to Cancun Airport?
The travel and health documents required for your trip to Cancun Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cancun Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from St. Louis to Cancún?
Based on momondo bookings for flights between St. Louis and Cancún, the leading plane model is Boeing 737 MAX 8, making up 31.05% of the total bookings. Other popular models include Airbus A320neo with 25.85%, Airbus A321neo with 18.42%, and Boeing 737-700 Passenger/BBJ1 (winglets) with 8.17%.
What is the most popular airline from St. Louis to Cancún?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Cancún is Frontier, representing 46% of all bookings. The subsequent popular airlines are Southwest at 16%, American Airlines at 15%, and Volaris at 8%.

Best airlines flying from St. Louis to Cancún

Compare and see reviews for airlines that fly from St. Louis to Cancún with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $132	Free Cancellation	Rating 6.3 8,035 reviews	Search Spirit Airlines flights
Volaris	PriceFrom $174	Free Cancellation	Rating 6.6 1,163 reviews	Search Volaris flights
Frontier	PriceFrom $293	Free Cancellation	Rating 5.9 3,238 reviews	Search Frontier flights
Aeromexico	PriceFrom $346	Free Cancellation	Rating 7.5 1,719 reviews	Search Aeromexico flights
Delta	PriceFrom $358	Free Cancellation	Rating 8.0 7,975 reviews	Search Delta flights
United Airlines	PriceFrom $449	Free Cancellation	Rating 7.4 8,892 reviews	Search United Airlines flights
American Airlines	PriceFrom $468	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $510	Free Cancellation	Rating 8.0 4,237 reviews	Search Southwest flights

Southwest Flights From St. Louis to Cancún
Across 14 Southwest flights from St. Louis to Cancún this week, the average price was $671, with the best Southwest deals starting from $510 round-trip. 4,237 users have rated Southwest on momondo, with an average score of 8.0/10.
Frontier Flights From St. Louis to Cancún
The best Frontier deal for St. Louis to Cancún flight tickets found on momondo in the last 72 hours was $293, round-trip. It should be noted that an average Frontier flight deal for this route in this time was higher, at $483 round-trip. Frontier operates 7 flights out of St. Louis into Cancún in an average week, so prices vary by time and availability. 3,238 Frontier reviews by users on momondo have scored the airline at 5.9/10.

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Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Cancún?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cancún from St. Louis.

Can I find flights from St. Louis to Cancún with flexible booking policies on momondo?

All flight searches from St. Louis to Cancún on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Cancún?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cancún from St. Louis.

I’m not ready to book a flight from St. Louis to Cancún right now. Can momondo alert me if prices change?

Price alerts on flights to Cancún from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Flights to Mexico Cityfrom $162

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Flights to León, Guanajuatofrom $186

Flights to Monterreyfrom $193

Flights to Méridafrom $175

Flights to Santiago de Querétarofrom $116

Flights to Moreliafrom $128

Flights to Puerto Escondidofrom $232

Cheap flights from St. Louis to Cancún from $115

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Cancún departing on 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Spirit Airlines flights from St. Louis to Cancún

Our best Spirit Airlines deals on St. Louis to Cancún flight tickets

Frontier flights from St. Louis to Cancún

Our best Frontier deals on St. Louis to Cancún flight tickets

See travel insights to Cancún from

How to get the cheapest flight ticket from St. Louis to Cancún

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Cancún?

What is the cheapest month to fly to Cancún?

If you don’t want to visit Cancún in April, then you should wait until August to fly from St. Louis, when ticket prices are also cheap, with an average price of $475.

What is the cheapest day to depart on your flight to Cancún?

What is the cheapest time of day to depart on your flight to Cancún?

What is the cheapest Lambert-St Louis to Cancun flight route?

Fly from Lambert-St Louis to Cancun for the best Lambert-St Louis - Cancun flight prices

How far in advance should I book a flight to Cancún?

What cabin class options are available on Lambert-St Louis to Cancun flights?

There are 2 cabin classes available to choose from on Lambert-St Louis to Cancun flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Cancún flights?

You could potentially save up to 7% on your flight if you consider stops on a St. Louis to Cancún flight.

How have St. Louis to Cancún flight prices changed over time?

As of July 2025, prices for St. Louis to Cancún flights are approximately 13% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Lambert-St Louis to Cancun?

Frontier, Spirit Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Cancun

What airlines fly to Cancún?

Which airport is the most popular layover for flights between St. Louis and Cancún?

Atlanta (ATL) was the most common stop: 57% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from St. Louis to Cancún?

Flights via Denver (DEN) offer the lowest average round-trip price of $118.

Which layover airport has the shortest travel time from St. Louis to Cancún?

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 3h 51m.

Which layover airport has the shortest connection time from St. Louis to Cancún?

Atlanta (ATL) has the shortest average layover time for this route: 2h 16m.

How many flights depart from St. Louis to Cancún on average per day?

As of July 2025, there are 3 flights per day flying from St. Louis to Cancún. The most common time of day flights depart is 6:00AM, with 95% of flights taking off at noon.

How many flights depart from St. Louis to Cancún on average per week?

21 flights are operational weekly from St. Louis to Cancún as of July 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

When to book flights from St. Louis to Cancún

Cheap St. Louis to Cancún (STL to CUN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Cancún

Best Price Found

Fastest flight time

Direct flights

Airports in Cancún

How far is Lambert-St Louis to Cancun by plane?

When did momondo last update prices for flights from Lambert-St Louis Airport to Cancun Airport?

How many operators does momondo search for flights from Lambert-St Louis Airport to Cancun Airport?

How old do you have to be to fly from Lambert-St Louis Airport to Cancun Airport?

What documentation or ID do you need to fly to Cancun Airport?

What is the most popular plane model from St. Louis to Cancún?

What is the most popular airline from St. Louis to Cancún?

Best airlines flying from St. Louis to Cancún

Compare and see reviews for airlines that fly from St. Louis to Cancún with momondo

Southwest Flights From St. Louis to Cancún

Frontier Flights From St. Louis to Cancún

Traveling to a place near Cancún?

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Cancún?

Can I find flights from St. Louis to Cancún with flexible booking policies on momondo?

How can momondo help me find flights from St. Louis to Cancún?

I’m not ready to book a flight from St. Louis to Cancún right now. Can momondo alert me if prices change?

An easier way to manage your Cancún trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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