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

Flights from Cancun to Lambert-St Louis have been viewed 3 times in the past calendar month.

How long is the flight from Cancún to St. Louis?

There are many flights that can get you from Cancún to St. Louis in 24h 34m. Fly via Frontier to get the fastest option. Airlines will cover a distance of 1241 mi.

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

To fly one-way, consider booking your trip with Volaris, which is currently one of the cheapest options available, starting at $124. Frontier flights start at $164 while deals on Delta start at $193 one-way.

Weekly flight availability from Cancún to St. Louis

The most flights from CUN to STL are scheduled on a Monday (3 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (1 on average).

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

Looking at all options, your cheapest flight can be booked for $183. While the most popular route (Cancun - Lambert-St Louis) can be booked for $304 on average, our data indicates $274 when flying from Cancún to St. Louis.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Cancún to St. Louis on time: Frontier (85%), Southwest (84%), American Airlines (50%).

Most accurate provider : When it comes to deals on Cancún-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Cancún-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Cancún-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Cancún-St. Louis flights, Cheapflights users trust eDreams the most. eDreams 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 Cancún-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

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

$145+ Flights from Cancún to St. Louis

Q: How much does it cost to fly round-trip from Cancún to St. Louis?

Airfare is below average for this route at the moment. Cancún to St. Louis flights typically cost between $667 and $785 in February. The cheapest round-trip price found within the last 3 days was $325 on Multiple Airlines (Feb 4-Feb 18).

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Cheap flight deals from Cancún to St. Louis

Cheapest flights from Cancún to St. Louis
Explore the most affordable flight options available from Cancún to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.

Tue 12/3010:10 pmCUN - STL

1 stop18h 19mAir Canada

Tue 1/64:05 pmSTL - CUN

1 stop19h 50mAir Canada

Deal found 12/29

$400

Tue 12/3012:26 pmCUN - STL

Nonstop3h 21mMultiple Airlines

Tue 1/64:05 pmSTL - CUN

1 stop17h 45mMultiple Airlines

Deal found 12/29

$444

Tue 12/3012:26 pmCUN - STL

Nonstop3h 21mVolaris

Tue 1/66:00 amSTL - CUN

Nonstop3h 23mVolaris

Deal found 12/29

$520

Tue 12/308:39 amCUN - STL

1 stop8h 57mUnited Airlines

Tue 1/66:30 amSTL - CUN

2 stops10h 20mUnited Airlines

Deal found 12/29

$525

Tue 12/3012:05 pmCUN - STL

2 stops12h 37mDelta

Tue 1/67:10 amSTL - CUN

2 stops13h 00mDelta

Deal found 12/29

$530

Best flights from Cancún to St. Louis
Discover carefully curated flight deals from Cancún to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 29, 2025.

Tue 2/102:24 pmCUN - STL

1 stop24h 34mMultiple Airlines

Tue 2/173:49 pmSTL - CUN

1 stop16h 29mMultiple Airlines

Deal found 12/26

$288

Tue 2/102:24 pmCUN - STL

1 stop24h 34mFrontier

Tue 2/176:00 amSTL - CUN

Nonstop3h 30mFrontier

Deal found 12/26

$302

Wed 2/412:15 pmCUN - STL

1 stop9h 22mDelta

Wed 2/186:10 amSTL - CUN

1 stop9h 15mDelta

Deal found 12/27

$382

Wed 2/41:21 pmCUN - STL

2 stops35h 12mMultiple Airlines

Wed 2/188:17 pmSTL - CUN

1 stop11h 34mMultiple Airlines

Deal found 12/26

$324

Wed 2/41:29 pmCUN - STL

Nonstop3h 28mFrontier

Wed 2/188:17 pmSTL - CUN

1 stop11h 34mFrontier

Deal found 12/28

$345

Thu 2/1210:13 amCUN - STL

1 stop14h 46mMultiple Airlines

Thu 2/1910:11 pmSTL - CUN

2 stops36h 57mMultiple Airlines

Deal found 12/29

$372

Last-minute flights from Cancún to St. Louis
Discover last-minute flight deals from Cancún to St. Louis. Data last updated December 29, 2025 and is based on user searches.

Sun 1/188:39 amCUN - STL

1 stop14h 21mUnited Airlines

Sun 1/256:00 amSTL - CUN

1 stop6h 34mUnited Airlines

Deal found 12/28

$489

Sun 1/1812:05 pmCUN - STL

2 stops12h 34mDelta

Sun 1/256:35 amSTL - CUN

1 stop6h 25mDelta

Deal found 12/28

$492

One-way flights from Cancún to St. Louis
Search for one-way flight options from Cancún to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 29, 2025.

Sat 2/289:00 amCUN - STL

1 stop15h 59mFrontier

Deal found 12/29

$145

Sat 2/219:00 amCUN - STL

1 stop15h 59mFrontier

Deal found 12/29

$150

Fri 2/2712:24 pmCUN - STL

1 stop26h 32mFrontier

Deal found 12/29

$151

Tue 2/102:24 pmCUN - STL

1 stop24h 34mFrontier

Deal found 12/27

$152

Wed 2/1110:13 amCUN - STL

1 stop13h 14mMultiple Airlines

Deal found 12/28

$158

Thu 2/510:13 amCUN - STL

1 stop25h 10mMultiple Airlines

Deal found 12/28

$161

Fri 1/304:30 pmCUN - STL

1 stop15h 21mFrontier

Deal found 12/29

$164

Wed 3/1111:44 amCUN - STL

Nonstop3h 27mFrontier

Deal found 12/29

$166

Thu 2/1912:24 pmCUN - STL

1 stop25h 45mFrontier

Deal found 12/29

$168

Thu 2/2612:50 pmCUN - STL

3 stops33h 36mMultiple Airlines

Deal found 12/28

$171

Find flight deals from Cancún to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$325 (Kiwi.com)
One-way from	$145 (Trip.com)
Popular in	January
Cheapest in	September
Average price	$384
Good one-way deal	$224 or less

Provider with most accurate pricing for Cancun-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Cancun-Lambert-St Louis flights.

Search Deals

From Cancun to Lambert-St Louis

Search Deals

One-way flight from Cancun to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($58 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($29 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a one-way flight from Cancun to Lambert-St Louis.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Tue 2/10

2:24 pm-1:58 pm

1 stop24h 34m

Lambert-St Louis

Tue 2/17

3:49 pm-9:18 am

1 stop16h 29m

$288

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Tue 2/10

2:24 pm-1:58 pm

1 stop24h 34m

Lambert-St Louis

Tue 2/17

6:00 am-10:30 am

Nonstop3h 30m

$302

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Wed 2/4

1:21 pm-11:33 pm

2 stops35h 12m

Lambert-St Louis

Wed 2/18

8:17 pm-8:51 am

1 stop11h 34m

$324

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Wed 2/4

1:29 pm-3:57 pm

Nonstop3h 28m

Lambert-St Louis

Wed 2/18

8:17 pm-8:51 am

1 stop11h 34m

$345

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Thu 2/12

10:13 am-11:59 pm

1 stop14h 46m

Lambert-St Louis

Thu 2/19

10:11 pm-12:08 pm

2 stops36h 57m

$372

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Wed 2/4

12:15 pm-8:37 pm

1 stop9h 22m

Lambert-St Louis

Wed 2/18

6:10 am-4:25 pm

1 stop9h 15m

$382

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Thu 2/19

2:00 pm-12:27 am

2 stops35h 27m

$206

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Thu 4/2

3:58 pm-10:02 am

1 stop18h 04m

$214

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Wed 3/25

8:00 am-5:53 pm

1 stop9h 53m

$217

CancúnSt. Louis

CUN - STL

CUNSTL

Cancun

Wed 3/25

5:30 am-10:16 pm

1 stop16h 46m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 14 results

Compare providers for flights from Cancún to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cancún to St. Louis in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Priceline	Price Accuracy1 star	Trust 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 Cancún-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Cancún-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Cancún-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Cancún-St. Louis flights, Cheapflights users trust eDreams the most. eDreams 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 Cancún-St. Louis 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 Cancún to St. Louis

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

Prices

Airlines

What is the cheapest time of day to fly from CUN to STL?

When flying from Cancún to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The best insider tips for Cancún to St. Louis flights

Cheapflights partnered with top experts to bring you the best recommendations for your Cancún to St. Louis trip

Airports

CUN

CUN's terminals are crowded, so arrive early to navigate security lines and packed areas efficiently.

STL

Use the MetroLink from STL for a convenient, economical ride to downtown St. Louis in about 40 minutes.

Our travel experts

Taryn White

Expert on STL

Ramsey Qubein

Expert on CUN

Related info for your journey

How popular is this Cancún to St. Louis flight route?
Flights from Cancun to Lambert-St Louis have been viewed 3 times in the past calendar month.
How long is the flight from Cancún to St. Louis?
There are many flights that can get you from Cancún to St. Louis in 24h 34m. Fly via Frontier to get the fastest option. Airlines will cover a distance of 1241 mi.
What are the cheapest airlines to fly from Cancún to St. Louis one-way?
To fly one-way, consider booking your trip with Volaris, which is currently one of the cheapest options available, starting at $124. Frontier flights start at $164 while deals on Delta start at $193 one-way.
What are the most reliable airlines from Cancún to St. Louis?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Cancún to St. Louis on time: Frontier (85%), Southwest (84%), American Airlines (50%).
What are the cheapest flights from Cancún to St. Louis?
Looking at all options, your cheapest flight can be booked for $183. While the most popular route (Cancun - Lambert-St Louis) can be booked for $304 on average, our data indicates $274 when flying from Cancún to St. Louis.
Can I find deals for flights from Cancún to St. Louis that include hotel bookings?
Yes. In addition to deals on Cancún to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Cancún to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cancún to St. Louis.
Can I find deals for business class flights from Cancún to St. Louis?
Yes. Cheapflights offers flight deals from Cancún to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$145+ Cheap flights from Cancún (CUN) to St. Louis (STL)

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Cancún to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Cancún to St. Louis

Cheapest flights from Cancún to St. LouisExplore the most affordable flight options available from Cancún to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.

Explore the most affordable flight options available from Cancún to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.

Find flight deals from Cancún to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cancún to St. Louis that are best for you.

Compare providers for flights from Cancún to St. Louis

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 Cancún to St. Louis in December.

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Cancún with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Cancún to St. Louis

What is the cheapest time of day to fly from CUN to STL?

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

Weekly flight availability from Cancún to St. Louis

The best insider tips for Cancún to St. Louis flights

AI-powered summary based on content written by travel experts. AI can make mistakes.

Cheapflights partnered with top experts to bring you the best recommendations for your Cancún to St. Louis trip

Airports

CUN

STL

Our travel experts

Related info for your journey

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

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

How long is the flight from Cancún to St. Louis?

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

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

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

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

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

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

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Cheapest flights from Cancún to St. Louis
Explore the most affordable flight options available from Cancún to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.