Cheap flights from St. Louis to Cancún from $121
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 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from St. Louis to Cancún
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from St. Louis to Cancún
All round-trip flight deals from St. Louis to Cancún
Frontier flights from St. Louis to Cancún
Our best Frontier deals on St. Louis to Cancún flight tickets
Aeromexico flights from St. Louis to Cancún
Our best Aeromexico 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 cheapest month to fly to Cancún?
If you don’t want to visit Cancún in January, then you should wait until February to fly from St. Louis, when ticket prices are also cheap, with an average price of $479.
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 Wednesday when prices can be found for as low as $487. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $529. 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 at noon. Flights from St. Louis to Cancún during this time can be as low as $301. Flights to Cancún are more costly in the morning, with an average ticket price of $511. Departure times in the morning 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 4 weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around $516 when searching 4 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 $493 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.
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?
Frontier, American Airlines and United Airlines 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 51% 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.
How many flights depart from St. Louis to Cancún on average per day?
As of January 2025, there are 2 flights per day flying from St. Louis to Cancún. The most common time of day flights depart is 6:00AM, with 72% of flights taking off at noon.
How many flights depart from St. Louis to Cancún on average per week?
14 flights are operational weekly from St. Louis to Cancún as of January 2025. The most popular departure day for this route is Mon, with 21% 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
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 12m 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 January 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 Airbus A321neo, making up 26.26% of the total bookings. Other popular models include Boeing 737 MAX 8 with 24.98%, Boeing 737-700 Passenger/BBJ1 (winglets) with 17.02%, and Airbus A320neo with 12.08%.
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 48% of all bookings. The subsequent popular airlines are American Airlines at 23%, Southwest at 8%, and Volaris at 6%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $100 | Free Cancellation | Rating 6.3 8,115 reviews | |||
| PriceFrom $227 | Free Cancellation | Rating 6.6 1,249 reviews | |||
| PriceFrom $302 | Free Cancellation | Rating 6.0 3,443 reviews | |||
| PriceFrom $382 | Free Cancellation | Rating 7.5 1,849 reviews | |||
| PriceFrom $408 | Free Cancellation | Rating 8.0 8,521 reviews | |||
| PriceFrom $422 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $448 | Free Cancellation | Rating 7.4 8,985 reviews | |||
| PriceFrom $491 | Free Cancellation | Rating 8.1 4,662 reviews |
Southwest Flights From St. Louis to Cancún
Across 7 Southwest flights from St. Louis to Cancún this week, the average price was $704, with the best Southwest deals starting from $491 round-trip. 4,662 users have rated Southwest on momondo, with an average score of 8.1/10.
American Airlines Flights From St. Louis to Cancún
The best American Airlines deal for St. Louis to Cancún flight tickets found on momondo in the last 72 hours was $422, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $573 round-trip. American Airlines operates 1 flight out of St. Louis into Cancún in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.
Traveling to a place near Cancún?
Book flights to Cancún if you plan to visit one of these locationsWhy 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.