Flights from Saint Louis to Cancun with American Airlines

Recent searches for flights from Saint Louis to Cancun

DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

Popular flights with American Airlines

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*Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

Earn up to a $200 statement credit + 40,000 bonus miles. Plus, first checked bag is free on domestic American Airlines itineraries. Terms apply. Opens in a new browser. 

Flights from Saint Louis to Cancun with American Airlines

Find deals on Saint Louis to Cancun flights

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Saint Louis (STL)to

Cancun (CUN)
02/22/26 - 02/27/26

Round trip

Economy

from
$546Fare subject to changes
Updated: 9 hours ago

Saint Louis (STL)to

Cancun (CUN)
02/17/26 - 02/21/26

Round trip

Economy

from
$576Fare subject to changes
Updated: 10 hours ago

Saint Louis (STL)to

Cancun (CUN)
05/17/26 - 05/23/26

Round trip

Economy

from
$581Fare subject to changes
Updated: 8 hours ago

Saint Louis (STL)to

Cancun (CUN)
05/21/26 - 05/25/26

Round trip

Economy

from
$930Fare subject to changes
Updated: 35 minutes ago

Saint Louis (STL)to

Cancun (CUN)
06/19/26 - 06/23/26

Round trip

Economy

from
$1,186Fare subject to changes
Updated: 1 hour ago

Saint Louis (STL)to

Cancun (CUN)
06/17/26 - 06/21/26

Round trip

Economy

from
$1,198Fare subject to changes
Updated: 44 minutes ago

Saint Louis (STL)to

Cancun (CUN)
06/18/26 - 06/22/26

Round trip

Economy

from
$1,216Fare subject to changes
Updated: 37 minutes ago

*Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.