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STL - CUN

Find cheap flights from St. Louis to Cancun from $119

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Cancún departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 5/16
Thu 5/23

Search hundreds of travel sites at once for deals on flights to Cancun

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Cancún.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Cancún.
In the last 7 days travelers have searched 43,990,755 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from St. Louis to Cancún (STL-CUN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Cancún that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:04 pm - 2:16 pmSTL-CUN
18h 12m2 stops
10:02 am - 7:08 amCUN-STL
21h 06m1 stop
$215Frontier
Find Deal
Sat, May 11 - Thu, May 23
10:34 am - 5:14 pmSTL-CUN
6h 40m1 stop
10:02 am - 7:08 amCUN-STL
21h 06m1 stop
Tue, May 14 - Thu, May 23
7:30 pm - 8:25 amSTL-CUN
12h 55m1 stop
10:02 am - 7:08 amCUN-STL
21h 06m1 stop
Sun, May 12 - Thu, May 16
8:04 pm - 2:16 pmSTL-CUN
18h 12m2 stops
9:10 am - 6:40 pmCUN-STL
9h 30m1 stop
Sat, May 11 - Thu, May 16
7:30 pm - 8:25 amSTL-CUN
12h 55m1 stop
9:10 am - 6:40 pmCUN-STL
9h 30m1 stop
$244Spirit Airlines
Find Deal
Sun, May 12 - Thu, May 16
8:04 pm - 2:16 pmSTL-CUN
18h 12m2 stops
9:31 am - 7:08 amCUN-STL
21h 37m2 stops
$250Frontier
Find Deal
Sat, May 11 - Sat, May 18
7:30 pm - 8:28 amSTL-CUN
12h 58m1 stop
1:36 pm - 9:47 amCUN-STL
20h 11m2 stops
Thu, May 2 - Tue, May 7
7:30 pm - 8:25 amSTL-CUN
12h 55m1 stop
6:05 pm - 5:29 pmCUN-STL
23h 24m1 stop
$273Spirit Airlines
Find Deal
Sun, May 12 - Wed, May 15
11:51 am - 7:53 pmSTL-CUN
8h 02m1 stop
1:52 pm - 9:31 pmCUN-STL
7h 39m1 stop
$400Delta
Find Deal
Sun, Sep 15 - Thu, Sep 19
5:35 pm - 12:52 pmSTL-CUN
19h 17m1 stop
8:15 am - 11:35 pmCUN-STL
15h 20m1 stop
$406Delta
Find Deal
Sat, Sep 14 - Wed, Sep 18

Flights from St. Louis to Cancún - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Cancún to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Cancún?

The average price of all flights from St. Louis to Cancún clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Cancún on a Monday and more expensive on a Saturday. On your return trip to St. Louis, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Cancún, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Cancún is January, where tickets cost $378 on average. On the other hand, the most expensive months are March and June, where the average cost of tickets is $516 and $500 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Cancún, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Cancún, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 2 days before departure.

Which airlines provide the cheapest flights from St. Louis to Cancún?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $119. KAYAK users also found St. Louis to Cancún round-trip flights on Frontier from $215 and on Spirit Airlines from $244.

Which airlines fly non-stop between St. Louis and Cancún?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from St. Louis to Cancún.
There are 2 airlines that fly nonstop from St. Louis to Cancún. They are Frontier and Southwest. The cheapest airline for this route is Frontier, with the best one-way deal found costing $225. On average, the best prices for this route can be found at Frontier.

How many flights are there between St. Louis and Cancún per day?

Each day, there are between 2 and 3 nonstop flights that take off from St. Louis and land in Cancún, with an average flight time of 3h 16m. The most common departure time is 11:00 am and most flights take off in the morning. Each week, there are 15 flights. The most frequent day of departure is Saturday, when 20% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between St. Louis and Cancún?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from St. Louis to Cancún take?

The average nonstop flight takes 3h 19m, covering a distance of 1,241 miles.

What’s the earliest departure time from St. Louis to Cancun?

Early birds can take the earliest flight from St. Louis at 8:45 am and will be landing in Cancún at 11:50 am.

What’s the latest departure time from St. Louis to Cancun?

If you prefer to fly at night, the latest flight from St. Louis to Cancún jets off at 12:00 pm and lands at 3:05 pm.

Good to know

Low season

September

High season

March

Cheapest flight

$119
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from St. Louis to Cancún

When to book flights from St. Louis to Cancún

Are your dates flexible? Find out the best times to travel from St. Louis to Cancún based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Cancun

  • How can I get into the city center of Cancun from CUN?

    There is a bus stop in Terminal 2 of CUN where you can catch an ADO bus into the city center of Cancun. This journey will take you approximately 30min. These buses tend to leave the airport about every 30min. From CUN, you can also take a Cancun Shuttle or a Jayride shuttle into the city. This trip will take approximately 20min.

  • Is there a USO lounge at STL?

    Active-duty US military service members and their family members can take advantage of the James S. McDonnell USO at STL. This lounge is open 24h, 7 days a week, every day of the year. It can be found on the lower level of Terminal 1 opposite the M6 baggage claim. Everything in the USO is offered without charge, such as beverages, snacks, computers, laptops, TV, and so much more. There is even an area where you can sleep.

  • Does STL have a chapel or prayer room?

    STL has two inter-faith chapels. One is located in Terminal 1, on the lower level. The other is located near gate E-40. These quiet spaces for reflection and meditation are open every day, for 24h. These rooms, which can be quite places of sanctuary, also provide prayer, prayer rugs, spiritual guidance, religious services, and empathetic listening.

  • How can I fly from STL to CUN?

    Frontier and Southwest operate non-stop flights from STL to CUN. United Airlines and American Airlines are among the carriers that operate one-stop flights. These flights often stop in cities such as Houston (IAH), Charlotte (CLT), or Chicago (ORD).

  • What is the cheapest flight from St. Louis to Cancún?

    In the last 3 days, the lowest price for a flight from St. Louis to Cancún was $119 for a one-way ticket and $215 for a round-trip.

  • Do I need a passport to fly between St. Louis and Cancún?

    Yes

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Cancun?

    American Airlines, Delta, JetBlue, and Aeromexico offer inflight Wi-Fi service on the St. Louis to Cancun flight route.

  • Which aircraft models fly most regularly from St. Louis to Cancun?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the St. Louis to Cancun flight route.

  • On which days can I fly direct from St. Louis to Cancun?

    There are nonstop flights from St. Louis to Cancun on a daily basis.

  • Which is the best airline for flights from St. Louis to Cancún, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Cancún are Delta and United Airlines. With an average price for the route of $482 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $556 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Cancun?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Cancun.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Cancun?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cancun from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Cancun?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cancun with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and CUN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Cancun?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cancun from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from STL to Cancun

  • Looking for a cheap flight? 25% of our users found flights on this route for $225 or less one-way and $471 or less round-trip.
  • As a part of an arts and culture initiative at the Lambert St. Louis International Airport (STL), Terminal 1 features a piano and a player. As a result, travelers get to enjoy live music as they head through the airport.
  • Parking lots for long-term parking are available in Lots B and D at STL. Complimentary shuttles can take you to your terminal, and these run approximately every 10min. Generally, payment is due at the time that you leave the lot when you have returned from your trip.
  • At STL, traveling mothers can take advantage of lactation suites if they want to breastfeed in private or need to pump while they are in the airport. Each lactation suite is a quiet calm, sanitized space that has a sink, a comfortable chair, a table, an outlet, an ottoman, and a bench. The suites are designed with enough room for luggage, a stroller, and other family members. These lactation suites can be found at Gates A10, E33, and C9.
  • There are many currency exchange counters throughout Cancun International Airport (CUN) in Terminals 2, 3, and 4. You also have the option of exchanging money somewhere in town or online to perhaps get a better exchange rate.
  • CUN has a designated restaurant and waiting area called The Meeting Point, designed specifically for international passengers to meet up with people when they land. There is one located in Terminal 2 and another in Arrival Terminal 3. This is the ideal place to meet someone at the airport once you have arrived.
See more tips

Prefer to fly non-stop from St. Louis to Cancún?

Find which airlines fly direct from Lambert-St Louis to Cancun, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Cancun

Monday

Frontier, Southwest

Frontier, Southwest

Tuesday

Frontier, Southwest

Frontier, Southwest

Wednesday

Frontier, Southwest

Frontier, Southwest

Thursday

Frontier, Southwest

Frontier, Southwest

Friday

Frontier, Southwest

Frontier, Southwest

Saturday

Frontier, Southwest

Frontier, Southwest

Sunday

Frontier, Southwest

Frontier, Southwest

See more direct flights

Nonstop returns

Cancun to Lambert-St Louis

Monday

Frontier, Southwest

Frontier, Southwest

Tuesday

Frontier, Southwest

Frontier, Southwest

Wednesday

Frontier, Southwest

Frontier, Southwest

Thursday

Frontier, Southwest

Frontier, Southwest

Friday

Frontier, Southwest

Frontier, Southwest

Saturday

Frontier, Southwest

Frontier, Southwest

Sunday

Frontier, Southwest

Frontier, Southwest

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to Cancún

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Cancún. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Cancún? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 11123 reviews
8.0entertainment
8.2boarding
7.9comfort
8.6crew
7.5food
Airline reviews

The crew, food, and entertainment were all good. But my screen had some sort of bug where if I turned it off, it would turn back on after 2-5 minutes. At full brightness. It made it very hard to get any shut-eye on the overnight flight. Also, the older Boeing plane, while nicely cared for (and no doors fell off 😅👏) doesn't have the nice air quality of newer planes. So I felt a bit greasy by the time we landed in Sweden.

8.0 ExcellentDaniel, Apr 2024JFK - ARN
Read more about Delta reviews

The crew, food, and entertainment were all good. But my screen had some sort of bug where if I turned it off, it would turn back on after 2-5 minutes. At full brightness. It made it very hard to get any shut-eye on the overnight flight. Also, the older Boeing plane, while nicely cared for (and no doors fell off 😅👏) doesn't have the nice air quality of newer planes. So I felt a bit greasy by the time we landed in Sweden.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

Boarding was good, was able to get on early and get settled in . Loved the glass of wine before take off. Once in the air the service was amazing, from the snacks, drinks and the food was good. The flight attendants were very good and attentive. Love flying with Delta..

Seats in first class on the E175 recline too far back. I was in 2A, and the man in 1A fully reclined almost the entire flight. It took 6-7 inches of space away from me and made it very difficult to work on my laptop.

On 2 different flights the wifi was horrible and there was no drink or snack service.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

the flight from Tampa departed with a delay. The food on board was poor, usually on international airlines alcoholic beverages are offered free of charge , but here it was for a fee, the cutlery was wooden, there were no hot drinks (tea, coffee). Unfortunately, I didn't take pictures of the portions of food, but it wouldn't have been enough for a child either.And in the future, I will try not to use the services of this airline

they made me check my carryon. There was space in the overhead bins.

Nice flight, nice crew but no cookie or napkin with my seltzer.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

I liked everything about the flight. The service was excellent!

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

I arrived to the airport 2 hours before my American Airlines flight was scheduled to take off. I have TSA pre-check. The airport was crazy packed when I arrived. After momentarily standing in the pre-check line, the TSA agent said that I am not pre-check. Of course I said that I am because I entered my KTN number on all my traveling sites and programs. I had to get out of line and go back to the AA counter to discover that American Airlines did not add my KTN to my boarding pass. I had to call TSA to find out my number, then have AA enter it onto my boarding pass. The emblem would not load onto my boarding pass. By this time, I decided to use my Clear in order to get through TSA but the line was ridiculous long. By the time I made through TSA, I missed my 11:08am flight and was re-booked for the 5:30pm. This is after the AA employee told me I should have gotten to the airport early. AA use to be a dependable airline not I use them only if I have too.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

Flight from SBP to DFW 1. They rerouted us through PHX 2. Delayed flight out of SBP for 3 hrs so we missed our connection Downgrade on rerouted flight. Back of the plane, center seats, didn't sit together 4. Return flight out of DFW same exact thing. Delayed, missed connection, Downgrade + they lost our luggage! A complete mess.

On the new 319 NEO? seatback entertainment system did not work even when the flight attendant rebooted it. At least I had my cell phone to connect with wifi.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Do not eat the bagel! Otherwise, good albeit late, breakfast in first. Boarding downgrade only because flight was delayed due to plane change due to undisclosed problem with original aircraft. I did not use entertainment.

Because I can’t stand very long in one place, I was allowed to reword.

It was a good flight. Of course it was full, but it went well.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Service of the person who gave us the boarding pass

Overall good but we had a minor scare when a wind shear caused the plane to re take off on the first landing attempt. The crew handled it well and we landed safely on the second attempt

It was unfortunate that I paid more than $120 one way to carry on my luggage to only have to have them checked baggage. We board the flight and there’s a lot of overhead space. They checked our bags in Group 2 but Group 3 was able to board with their luggage. I would not fly Volaris again. The flight attendance on the plane was very nice but the employees at the gate prior to boarding was very rude.

For the price, you pretty much can't beat this airlines. As far as comfort, you could do a lot better, but it'll cost you. Over all cheapest way to get from point A to point B.

To many extra fees, poor customer service and very uncomfortable flight. No leg room and seat wont recline.

I am disabled and was unable to get any assistance from Volaris. I had to wait in line at front desk for 45 minutes, I am by myself, and unable to stand. When I got to front desk check in, they had no assistance for me. I did however, have wheelchair assistance when I arrived in Mexico City. Thank God for that!

It was horrible, our flight back was overbooked and had to take a flight 12hours later in the day but to LAX. Volaris is horrible.

necesitan mejorar el entretenimiento, en vuelos de mas de 3 horas

The whole experience was good. We left a little late but that seems pretty normal we it’s anybairline these days. No free snacks or drinks provided.

Our flight got overbooked and we missed one day of our trip.

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Terrible. Seats are bad and the baggage policy is inconsistent

Flight delayed 3 times, resulting in late arrival, rental car place gave car away resulting in increased BS charges because I was late. Frontier blows.

I paid for extra leg room. The flimsy plastic seat underneath the floatation seat did not line up with the arm rests. It seemed as if the plastic part was zip tied on but immovable. This caused severe uncomfortable for the duration of the flight.

Left Denver late, then sat on tarmac 30 min after arrival

Better than I expected but I did pay for a seat and carry on bags ahead of time.

Crew members are very rude and not cooperate with passengers.

30 minute delay due to boarding and settling of a family.

Book cheap flights from St. Louis to Cancun

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Cancún found on KAYAK in the last 72 hours.
5/17Fri
1 stopFrontier
16h 14mSTL-CUN
$119
5/9Thu
1 stopSpirit Airlines
12h 55mSTL-CUN
$142
5/9Thu
2 stops
20h 36mSTL-CUN
$143
5/20Mon
1 stopFrontier
16h 55mSTL-CUN
$145
4/25Thu
2 stops
20h 36mSTL-CUN
$156
7/30Tue
1 stopAmerican Airlines
7h 05mSTL-CUN
$188
7/30Tue
2 stopsDelta
12h 48mSTL-CUN
$190
8/3Sat
1 stopDelta
16h 38mSTL-CUN
$203
8/6Tue
2 stopsAmerican Airlines
15h 38mSTL-CUN
$249
8/5Mon
2 stopsUnited Airlines
21h 07mSTL-CUN
$256

Search by stops

Search by airline

Search by price

Last minute flights from St. Louis to Cancún

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Cancún that are departing in the next 10 days.
4/21Sun
multi-stopSpirit Airlines
12h 58mSTL-CUN
5/2Thu
multi-stopSpirit Airlines
9h 30mCUN-STL
$286
4/21Sun
multi-stop
12h 58mSTL-CUN
5/3Fri
multi-stop
20h 11mCUN-STL
$295
4/21Sun
multi-stop
12h 58mSTL-CUN
5/1Wed
multi-stop
18h 41mCUN-STL
$305
4/21Sun
multi-stop
12h 58mSTL-CUN
4/30Tue
multi-stop
17h 50mCUN-STL
$318
4/21Sun
nonstopFrontier
3h 29mSTL-CUN
5/3Fri
multi-stopFrontier
15h 55mCUN-STL
$399
4/21Sun
nonstopFrontier
3h 29mSTL-CUN
5/1Wed
nonstopFrontier
3h 31mCUN-STL
$471
4/17Wed
multi-stopDelta
8h 15mSTL-CUN
4/27Sat
multi-stopDelta
10h 05mCUN-STL
$762
4/20Sat
multi-stopAeromexico
5h 31mSTL-CUN
5/3Fri
multi-stopAeromexico
9h 46mCUN-STL
$960
4/20Sat
multi-stopAeromexico
5h 31mSTL-CUN
4/30Tue
multi-stopAeromexico
6h 31mCUN-STL
$1,030
4/20Sat
multi-stopUnited Airlines
16h 39mSTL-CUN
5/2Thu
multi-stopUnited Airlines
21h 01mCUN-STL
$1,049

Search by stops

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Search by price

St. Louis - Cancún Flights

Departure:

St. Louis (STL)United States

Destination:

Cancun (CUN)Mexico

Return flight deals:

Cancun - St. Louis

Cabin classes:

$419
$233

Browse destinations: