Flights from Cancun, MX to St. Louis, MO

Promo Code

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

Oct 2026
from$337*
Last seen: 18 hours ago
One-way/Economy
Nov 2026
from$193*
Last seen: 15 hours ago
One-way/Economy
Dec 2026
from$242*
Last seen: 1 hour ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $217
cmp-daily-histogram-bars-legend-max-price-aria-label $605
Displaying fares for October-2026
  • CUN–STL: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

    OCT

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    23

    Fri

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    24

    Sat

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    25

    Sun

  • CUN–STL, Oct 26, 2026: from $396
    26

    Mon

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    27

    Tue

  • CUN–STL, Oct 28, 2026: from $366
    28

    Wed

  • CUN–STL, Oct 29, 2026: from $349
    29

    Thu

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    30

    Fri

  • CUN–STL, Oct 31, 2026: from $337
    31

    Sat

  • CUN–STL, Nov 1, 2026: from $358
    01

    Sun

    NOV

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    02

    Mon

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    03

    Tue

  • CUN–STL, Nov 4, 2026: from $303
    04

    Wed

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    05

    Thu

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    06

    Fri

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    07

    Sat

  • CUN–STL, Nov 8, 2026: from $332
    08

    Sun

  • CUN–STL, Nov 9, 2026: from $514
    09

    Mon

  • CUN–STL, Nov 10, 2026: from $303
    10

    Tue

  • CUN–STL, Nov 11, 2026: from $280
    11

    Wed

  • CUN–STL: cmp-view-offers-disclaimer. Find Offers
    12

    Thu

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    13

    Fri

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    14

    Sat

  • CUN–STL, Nov 15, 2026: from $605
    15

    Sun

  • CUN–STL, Nov 16, 2026: from $358
    16

    Mon

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

    Tue

  • CUN–STL, Nov 18, 2026: from $268
    18

    Wed

  • CUN–STL, Nov 19, 2026: from $217
    19

    Thu

  • CUN–STL, Nov 20, 2026: from $217
    20

    Fri

  • CUN–STL: cmp-view-offers-disclaimer. Find Offers
    21

    Sat

    • Range$217-$605

    *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 Cancun, MX to St. Louis, MO on Frontier

    $
    Flights Deals from Cancun, MX to St. Louis, MO on Frontier
    From
    To
    Cancun, MX (CUN)St. Louis, MO (STL)One-way
    /
    Discount Den Basic Fare    		Departing Feb 24, 2027

    From

    $193

    Last seen: 7 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®.

    Cancun, MX St. Louis, MO

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