Flights from St. Louis, MO to Cancun, MX

Promo Code

Best Deals on Flights From St. Louis, MO (STL) to Cancun, MX (CUN)

Oct 2026
from$310*
Last seen: 8 hours ago
One-way/Economy
Nov 2026
from$213*
Last seen: 15 hours ago
One-way/Economy
Dec 2026
from$254*
Last seen: 4 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $213
cmp-daily-histogram-bars-legend-max-price-aria-label $382
Displaying fares for October-2026
  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    16

    Fri

    OCT

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    18

    Sun

  • STL–CUN, Oct 19, 2026: from $357
    19

    Mon

  • STL–CUN, Oct 20, 2026: from $357
    20

    Tue

  • STL–CUN, Oct 21, 2026: from $357
    21

    Wed

  • STL–CUN, Oct 22, 2026: from $335
    22

    Thu

  • STL–CUN, Oct 23, 2026: from $382
    23

    Fri

  • STL–CUN, Oct 24, 2026: from $314
    24

    Sat

  • STL–CUN, Oct 25, 2026: from $335
    25

    Sun

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    28

    Wed

  • STL–CUN, Oct 29, 2026: from $310
    29

    Thu

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    30

    Fri

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • STL–CUN, Nov 1, 2026: from $310
    01

    Sun

    NOV

  • STL–CUN, Nov 2, 2026: from $310
    02

    Mon

  • STL–CUN, Nov 3, 2026: from $289
    03

    Tue

  • STL–CUN, Nov 4, 2026: from $289
    04

    Wed

  • STL–CUN, Nov 5, 2026: from $310
    05

    Thu

  • STL–CUN, Nov 6, 2026: from $275
    06

    Fri

  • STL–CUN, Nov 7, 2026: from $254
    07

    Sat

  • STL–CUN, Nov 8, 2026: from $275
    08

    Sun

  • STL–CUN, Nov 9, 2026: from $213
    09

    Mon

  • STL–CUN, Nov 10, 2026: from $254
    10

    Tue

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

  • STL–CUN, Nov 12, 2026: from $275
    12

    Thu

  • STL–CUN, Nov 13, 2026: from $275
    13

    Fri

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    14

    Sat

  • STL–CUN: cmp-view-offers-disclaimer. Find Offers
    15

    Sun

    • Range$213-$382

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from St. Louis, MO to Cancun, MX on Frontier

    $
    Flights Deals from St. Louis, MO to Cancun, MX on Frontier
    From
    To
    St. Louis, MO (STL)Cancun, MX (CUN)One-way
    /
    Discount Den Basic Fare    		Departing Feb 6, 2027

    From

    $228

    Last seen: 9 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    St. Louis, MO Cancun, MX

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