Cheap flights from Cancun to St. Louis

Cancun
CUN
Lambert-St. Louis
STL

Flight deals from Cancun to St. Louis

Below you can see the best deals on flights Cancun — St. Louis for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 10 September, from $238.

Top 10 cheap flights from Cancun to St. Louis

F9
F9
$ 238

Cancun — St. Louis

13:51—13:10
10 Sep 2026
23 h 19 m
1 stop
AM
AM
DL
DL
$ 256

Cancun — St. Louis

08:00—09:20
5 Sep 2026
25 h 20 m
3 stops
F9
DL
$ 263

Cancun — St. Louis

13:51—09:34
11 Sep 2026
19 h 43 m
1 stop
F9
DL
$ 263

Cancun — St. Louis

13:51—12:32
11 Sep 2026
22 h 41 m
1 stop
F9
DL
$ 263

Cancun — St. Louis

13:51—14:49
11 Sep 2026
24 h 58 m
1 stop
F9
DL
$ 263

Cancun — St. Louis

13:51—16:32
11 Sep 2026
26 h 41 m
1 stop
F9
DL
$ 263

Cancun — St. Louis

13:51—23:42
11 Sep 2026
33 h 51 m
1 stop
F9
DL
$ 274

Cancun — St. Louis

13:51—23:42
10 Sep 2026
9 h 51 m
1 stop
AC
AC
$ 274

Cancun — St. Louis

21:05—14:00
14 Sep 2026
16 h 55 m
1 stop
AC
AC
$ 274

Cancun — St. Louis

21:05—20:20
14 Sep 2026
23 h 15 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Cancun — St. Louis flight

Looking for cheap flights from Cancun to St. Louis? Compare fares from different airlines, check the flight schedule and travel time — and book your Cancun — St. Louis ticket online at the best price.

The route has direct flights — around 22 flights per week, flights are operated by Frontier Airlines, Southwest Airlines, American Airlines, Volaris, a nonstop flight takes about 3 h 19 min, the distance between the cities is around 1,962 km.

Planning your trip? You may find our St. Louis travel guide, how to get from the airport into town and St. Louis weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $238Min. price
SeptemberCheapest
MayPeak season
YesDirect flights
1,962 kmDistance
3 h 19 minTravel time
4Airlines
22 / wkFlights

Flight schedule from Cancun to St. Louis

The table shows direct flights from Cancun to St. Louis on the selected date. The flight takes approximately 3 h 19 min. Regular flights are operated by Frontier Airlines, Southwest Airlines, American Airlines and Volaris. Departures from Cancun International Airport airports, arrivals at Lambert-St. Louis International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 15 Aug 2026

Flight ticket prices by day: Cancun — St. Louis

Below is a calendar of the lowest flight ticket prices for Cancun — St. Louis by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $238 in September, and the most expensive are around $512 in May. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Cancun to St. Louis by month. Tickets are usually cheapest in September (around $240) and priciest in December (about $366) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$306mediumMay$276mediumSep$240low
Feb$312mediumJun$288mediumOct$246low
Mar$354highJul$336highNov$258low
Apr$342highAug$294mediumDec$366high

Some values are estimated based on seasonality.

When to fly

Weather in St. Louis: it is warmest in July (up to 31 °C on average) and coolest in January (around 5 °C). The driest month is September.

Tickets are usually cheapest in September and most expensive in May. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · St. Louis

Dry and wet days · St. Louis

Wind speed and direction · St. Louis

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How to get the best deal on a Cancun — St. Louis ticket

  • Book ahead: fares for Cancun — St. Louis are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Flights Cancun — St. Louis operate on Sundays, Mondays and Saturdays — keep that in mind when picking your travel dates.
  • The cheapest month to fly to St. Louis is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Cancun — St. Louis route are operated by 4 airlines; Frontier Airlines runs the most flights (around 64% of all flights). Compare carriers, flight shares and schedules below.

  • Frontier AirlinesF9
    5x/week
    WebsiteFleet: 15329M pax/year
    • Direct flight CUN → STL5x/week
      Duration
      3h 19m
      Days
      MTWTFSS
    63.6%Open →
  • Southwest AirlinesWN
    1x/week
    WebsiteFleet: 817140M pax/year
    • Direct flight CUN → STL1x/week
      Duration
      3h
      Days
      MTWTFSS
    18.2%Open →
  • American AirlinesAA
    1x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight CUN → STL1x/week
    13.6%Open →
  • VolarisY4
    1x/week
    WebsiteFleet: 15233.4M pax/year
    • Direct flight CUN → STL1x/week
    4.5%Open →

Cities and airports on the Cancun — St. Louis route

Flights Cancun — St. Louis depart from Cancun International Airport and arrive at Lambert-St. Louis International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Cancun

CUN
Mexico
About the cityHow to get thereWeatherAll about the country Mexico
Arrival

St. Louis

STL
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Cancun — St. Louis flight

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

A nonstop Cancun — St. Louis flight takes about 3 h 19 min — the distance between the cities is around 1,962 km.

How far is it from Cancun to St. Louis?

The distance from Cancun to St. Louis is about 1,962 km, which a nonstop flight covers in around 3 h 19 min.

Are there direct flights from Cancun to St. Louis?

Yes, there are nonstop flights Cancun — St. Louis — around 22 flights per week.

Which airlines fly from Cancun to St. Louis?

Airlines operating Cancun — St. Louis include Frontier Airlines, Southwest Airlines, American Airlines, Volaris. See the full list with schedules in the "Airlines" section on this page.

Which airports do Cancun — St. Louis flights use?

Flights from Cancun depart from Cancun International Airport, and arrive at Lambert-St. Louis International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Cancun to St. Louis?

The price of a Cancun — St. Louis ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in May. Tickets typically cost between $238 and $512. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Cancun — St. Louis?

Flights Cancun — St. Louis are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Cancun to St. Louis?

To catch a low fare Cancun — St. Louis, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Cancun

See all
Mexico CityMonterreyDallasNew York CityHoustonAtlantaGuadalajaraTorontoLos AngelesChicagoPanama CityMiamiCharlotteDenverBogotaSeattlePhiladelphiaMontrealSan FranciscoDetroitBostonQuerétaroLimaLeonPueblaFort LauderdaleVancouverWashington, D.C.Tuxtla GutierrezCalgaryVeracruzOttawaLondonFrankfurt am MainAustinSan Luis PotosíGuatemala CitySan JoséClevelandMinneapolis

Where else you can fly from St. Louis

See all
ChicagoDallasNew York CityAtlantaSeattleMinneapolisTorontoDenverHoustonCharlotteWashington, D.C.DetroitBostonPortlandOrlandoPhoenixPhiladelphiaSalt Lake CityMiamiMontrealLos AngelesLas VegasFort LauderdaleJonesboroSan FranciscoLondonTampaFrankfurt am MainPunta CanaQuincyManhattan

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