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Route overview: Saint Louis to Cancun (CUN) flight deals

Saint Louis → Cancun

Dec 26, 2026 · choose your return date

STL → CUN1 adulteconomyOne way and round trips

30 flight options · 2 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 26, 2026 · One wayFrontier AirlinesNonstop$252.00 Dec 26, 2026 · One waySouthwest AirlinesUp to 1 stop each way$343.00 Dec 26, 2026 – Dec 27, 2026 · 1 nightFrontier AirlinesUp to 1 stop each way$437.50 Dec 26, 2026 – Dec 27, 2026 · 1 nightSouthwest AirlinesUp to 1 stop each way$647.50 Dec 26, 2026 – Dec 28, 2026 · 2 nightsFrontier AirlinesNonstop$455.00 Dec 26, 2026 – Dec 28, 2026 · 2 nightsSouthwest AirlinesUp to 1 stop each way$647.50 Dec 26, 2026 – Dec 29, 2026 · 3 nightsFrontier AirlinesNonstop$455.00 Dec 26, 2026 – Dec 29, 2026 · 3 nightsSouthwest AirlinesUp to 1 stop each way$647.50 Dec 26, 2026 – Dec 30, 2026 · 4 nightsFrontier AirlinesNonstop$455.00 Dec 26, 2026 – Dec 30, 2026 · 4 nightsSouthwest AirlinesUp to 1 stop each way$647.50 Dec 26, 2026 – Dec 31, 2026 · 5 nightsFrontier AirlinesNonstop$455.00 Dec 26, 2026 – Dec 31, 2026 · 5 nightsSouthwest AirlinesUp to 1 stop each way$647.50 Dec 26, 2026 – Jan 1, 2027 · 6 nightsFrontier AirlinesNonstop$455.00 Dec 26, 2026 – Jan 1, 2027 · 6 nightsSouthwest AirlinesUp to 1 stop each way$647.50 Dec 26, 2026 – Jan 2, 2027 · 7 nightsFrontier AirlinesNonstop$455.00 Dec 26, 2026 – Jan 2, 2027 · 7 nightsSouthwest AirlinesUp to 1 stop each way$647.50 Dec 26, 2026 – Jan 3, 2027 · 8 nightsFrontier AirlinesUp to 1 stop each way$437.50 Dec 26, 2026 – Jan 3, 2027 · 8 nightsSouthwest AirlinesUp to 1 stop each way$647.50 Dec 26, 2026 – Jan 4, 2027 · 9 nightsFrontier AirlinesNonstop$390.00 Dec 26, 2026 – Jan 4, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$552.50 Dec 26, 2026 – Jan 5, 2027 · 10 nightsFrontier AirlinesNonstop$390.00 Dec 26, 2026 – Jan 5, 2027 · 10 nightsSouthwest AirlinesUp to 1 stop each way$552.50 Dec 26, 2026 – Jan 6, 2027 · 11 nightsFrontier AirlinesNonstop$390.00 Dec 26, 2026 – Jan 6, 2027 · 11 nightsSouthwest AirlinesUp to 1 stop each way$552.50 Dec 26, 2026 – Jan 7, 2027 · 12 nightsFrontier AirlinesNonstop$390.00 Dec 26, 2026 – Jan 7, 2027 · 12 nightsSouthwest AirlinesUp to 1 stop each way$552.50 Dec 26, 2026 – Jan 8, 2027 · 13 nightsFrontier AirlinesNonstop$390.00 Dec 26, 2026 – Jan 8, 2027 · 13 nightsSouthwest AirlinesUp to 1 stop each way$552.50 Dec 26, 2026 – Jan 9, 2027 · 14 nightsFrontier AirlinesNonstop$390.00 Dec 26, 2026 – Jan 9, 2027 · 14 nightsSouthwest AirlinesUp to 1 stop each way$552.50

Flights for your trip

  1. Sat, Dec 26 · One way

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN

    One-way total · 1 adult · Taxes included

  2. Sat, Dec 26 · One way

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN

    One-way total · 1 adult · Taxes included

  3. Sat, Dec 26 – Sun, Dec 27

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    11:28 amCUN
    7h 14m
    ATL · 2h 31m
    5:42 pmSTL

    Round-trip total · 1 adult · Taxes included

  4. Sat, Dec 26 – Sun, Dec 27

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    12:00 pmCUN
    3h 10m
    Nonstop
    2:10 pmSTL

    Round-trip total · 1 adult · Taxes included

  5. Sat, Dec 26 – Mon, Dec 28

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:15 pmCUN
    3h 25m
    Nonstop
    4:40 pmSTL

    Round-trip total · 1 adult · Taxes included

  6. Sat, Dec 26 – Mon, Dec 28

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    4:00 pmCUN
    3h 10m
    Nonstop
    6:10 pmSTL

    Round-trip total · 1 adult · Taxes included

  7. Sat, Dec 26 – Tue, Dec 29

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:05 pmCUN
    3h 20m
    Nonstop
    4:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  8. Sat, Dec 26 – Tue, Dec 29

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    2:25 pmCUN
    3h 15m
    Nonstop
    4:40 pmSTL

    Round-trip total · 1 adult · Taxes included

  9. Sat, Dec 26 – Wed, Dec 30

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:05 pmCUN
    3h 20m
    Nonstop
    4:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  10. Sat, Dec 26 – Wed, Dec 30

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    10:45 amCUN
    3h
    Nonstop
    12:45 pmSTL

    Round-trip total · 1 adult · Taxes included

  11. Sat, Dec 26 – Fri, Jan 1

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:05 pmCUN
    3h 20m
    Nonstop
    4:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  12. Sat, Dec 26 – Fri, Jan 1

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    10:45 amCUN
    3h
    Nonstop
    12:45 pmSTL

    Round-trip total · 1 adult · Taxes included

  13. Sat, Dec 26 – Sat, Jan 2

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:05 pmCUN
    3h 20m
    Nonstop
    4:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  14. Sat, Dec 26 – Sat, Jan 2

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    10:45 amCUN
    3h
    Nonstop
    12:45 pmSTL

    Round-trip total · 1 adult · Taxes included

  15. Sat, Dec 26 – Sun, Jan 3

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    11:28 amCUN
    7h 14m
    ATL · 2h 31m
    5:42 pmSTL

    Round-trip total · 1 adult · Taxes included

  16. Sat, Dec 26 – Sun, Jan 3

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    12:00 pmCUN
    3h 10m
    Nonstop
    2:10 pmSTL

    Round-trip total · 1 adult · Taxes included

  17. Sat, Dec 26 – Tue, Jan 5

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:05 pmCUN
    3h 20m
    Nonstop
    4:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  18. Sat, Dec 26 – Tue, Jan 5

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    2:25 pmCUN
    3h 15m
    Nonstop
    4:40 pmSTL

    Round-trip total · 1 adult · Taxes included

  19. Sat, Dec 26 – Wed, Jan 6

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:05 pmCUN
    3h 20m
    Nonstop
    4:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  20. Sat, Dec 26 – Wed, Jan 6

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    10:45 amCUN
    3h
    Nonstop
    12:45 pmSTL

    Round-trip total · 1 adult · Taxes included

  21. Sat, Dec 26 – Thu, Jan 7

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:05 pmCUN
    3h 20m
    Nonstop
    4:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  22. Sat, Dec 26 – Thu, Jan 7

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    10:45 amCUN
    3h
    Nonstop
    12:45 pmSTL

    Round-trip total · 1 adult · Taxes included

  23. Sat, Dec 26 – Sat, Jan 9

    Frontier Airlines
    6:00 amSTL
    3h 14m
    Nonstop
    10:14 amCUN
    Frontier Airlines
    2:05 pmCUN
    3h 20m
    Nonstop
    4:25 pmSTL

    Round-trip total · 1 adult · Taxes included

  24. Sat, Dec 26 – Sat, Jan 9

    Southwest Airlines
    8:00 amSTL
    6h
    MCI · 1h 35m
    3:00 pmCUN
    Southwest Airlines
    10:45 amCUN
    3h
    Nonstop
    12:45 pmSTL

    Round-trip total · 1 adult · Taxes included

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1 of 24

Make this trip yours

STL ⇄ CUN

Economy

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Explore this route

All dates for this routeDec 25, 2026 · Return optionsDec 27, 2026 · Return optionsHotels in Cancun with Axel
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-26 · one wayFrontier AirlinesF986Axel-exclusive $252.002026-10-29T01:28:25Z
2026-12-26 · one waySouthwest AirlinesWN4164 + WN144Axel-exclusive $343.002026-10-29T01:28:25Z
2026-12-26 → 2026-12-27Frontier AirlinesF986 / F9152 + F94473Axel-exclusive $437.502026-10-29T01:28:25Z
2026-12-26 → 2026-12-27Southwest AirlinesWN4164 + WN144 / WN1986Axel-exclusive $647.502026-10-29T01:28:25Z
2026-12-26 → 2026-12-28Frontier AirlinesF986 / F987Axel-exclusive $455.002026-10-29T01:28:25Z
2026-12-26 → 2026-12-28Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $647.502026-10-29T01:28:25Z
2026-12-26 → 2026-12-29Frontier AirlinesF986 / F987Axel-exclusive $455.002026-10-29T01:28:25Z
2026-12-26 → 2026-12-29Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $647.502026-10-29T01:28:25Z
2026-12-26 → 2026-12-30Frontier AirlinesF986 / F987Axel-exclusive $455.002026-10-29T01:28:25Z
2026-12-26 → 2026-12-30Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $647.502026-10-29T01:28:25Z
2026-12-26 → 2026-12-31Frontier AirlinesF986 / F987Axel-exclusive $455.002026-10-29T01:28:25Z
2026-12-26 → 2026-12-31Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $647.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-01Frontier AirlinesF986 / F987Axel-exclusive $455.002026-10-29T01:28:25Z
2026-12-26 → 2027-01-01Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $647.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-02Frontier AirlinesF986 / F987Axel-exclusive $455.002026-10-29T01:28:25Z
2026-12-26 → 2027-01-02Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $647.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-03Frontier AirlinesF986 / F9152 + F94473Axel-exclusive $437.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-03Southwest AirlinesWN4164 + WN144 / WN1986Axel-exclusive $647.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-04Frontier AirlinesF986 / F987Axel-exclusive $390.002026-10-29T01:28:25Z
2026-12-26 → 2027-01-04Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $552.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-05Frontier AirlinesF986 / F987Axel-exclusive $390.002026-10-29T01:28:25Z
2026-12-26 → 2027-01-05Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $552.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-06Frontier AirlinesF986 / F987Axel-exclusive $390.002026-10-29T01:28:25Z
2026-12-26 → 2027-01-06Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $552.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-07Frontier AirlinesF986 / F987Axel-exclusive $390.002026-10-29T01:28:25Z
2026-12-26 → 2027-01-07Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $552.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-08Frontier AirlinesF986 / F987Axel-exclusive $390.002026-10-29T01:28:25Z
2026-12-26 → 2027-01-08Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $552.502026-10-29T01:28:25Z
2026-12-26 → 2027-01-09Frontier AirlinesF986 / F987Axel-exclusive $390.002026-10-29T01:28:25Z
2026-12-26 → 2027-01-09Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $552.502026-10-29T01:28:25Z

Route overview: Saint Louis to Cancun (CUN) flight deals

2026-12-26 · one way · Axel-exclusive $252.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.

2026-12-26 · one way · Axel-exclusive $343.00

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.

2026-12-26 → 2026-12-27 · Axel-exclusive $437.50

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F9152 / F94473: CUN 2026-12-27 11:28:00 → STL 2026-12-27 17:42:00; 1 stop(s) via ATL; 434 minutes. Local airport times.
    • F9152: CUN 2026-12-27 11:28:00 → ATL 2026-12-27 14:18:00; layover at ATL: 151 minutes.
    • F94473: ATL 2026-12-27 16:49:00 → STL 2026-12-27 17:42:00.

2026-12-26 → 2026-12-27 · Axel-exclusive $647.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1986: CUN 2026-12-27 12:00:00 → STL 2026-12-27 14:10:00; nonstop; 190 minutes. Local airport times.

2026-12-26 → 2026-12-28 · Axel-exclusive $455.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2026-12-28 14:15:00 → STL 2026-12-28 16:40:00; nonstop; 205 minutes. Local airport times.

2026-12-26 → 2026-12-28 · Axel-exclusive $647.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2026-12-28 16:00:00 → STL 2026-12-28 18:10:00; nonstop; 190 minutes. Local airport times.

2026-12-26 → 2026-12-29 · Axel-exclusive $455.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2026-12-29 14:05:00 → STL 2026-12-29 16:25:00; nonstop; 200 minutes. Local airport times.

2026-12-26 → 2026-12-29 · Axel-exclusive $647.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2026-12-29 14:25:00 → STL 2026-12-29 16:40:00; nonstop; 195 minutes. Local airport times.

2026-12-26 → 2026-12-30 · Axel-exclusive $455.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2026-12-30 14:05:00 → STL 2026-12-30 16:25:00; nonstop; 200 minutes. Local airport times.

2026-12-26 → 2026-12-30 · Axel-exclusive $647.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2026-12-30 10:45:00 → STL 2026-12-30 12:45:00; nonstop; 180 minutes. Local airport times.

2026-12-26 → 2027-01-01 · Axel-exclusive $455.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2027-01-01 14:05:00 → STL 2027-01-01 16:25:00; nonstop; 200 minutes. Local airport times.

2026-12-26 → 2027-01-01 · Axel-exclusive $647.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2027-01-01 10:45:00 → STL 2027-01-01 12:45:00; nonstop; 180 minutes. Local airport times.

2026-12-26 → 2027-01-02 · Axel-exclusive $455.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2027-01-02 14:05:00 → STL 2027-01-02 16:25:00; nonstop; 200 minutes. Local airport times.

2026-12-26 → 2027-01-02 · Axel-exclusive $647.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2027-01-02 10:45:00 → STL 2027-01-02 12:45:00; nonstop; 180 minutes. Local airport times.

2026-12-26 → 2027-01-03 · Axel-exclusive $437.50

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F9152 / F94473: CUN 2027-01-03 11:28:00 → STL 2027-01-03 17:42:00; 1 stop(s) via ATL; 434 minutes. Local airport times.
    • F9152: CUN 2027-01-03 11:28:00 → ATL 2027-01-03 14:18:00; layover at ATL: 151 minutes.
    • F94473: ATL 2027-01-03 16:49:00 → STL 2027-01-03 17:42:00.

2026-12-26 → 2027-01-03 · Axel-exclusive $647.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1986: CUN 2027-01-03 12:00:00 → STL 2027-01-03 14:10:00; nonstop; 190 minutes. Local airport times.

2026-12-26 → 2027-01-05 · Axel-exclusive $390.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2027-01-05 14:05:00 → STL 2027-01-05 16:25:00; nonstop; 200 minutes. Local airport times.

2026-12-26 → 2027-01-05 · Axel-exclusive $552.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2027-01-05 14:25:00 → STL 2027-01-05 16:40:00; nonstop; 195 minutes. Local airport times.

2026-12-26 → 2027-01-06 · Axel-exclusive $390.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2027-01-06 14:05:00 → STL 2027-01-06 16:25:00; nonstop; 200 minutes. Local airport times.

2026-12-26 → 2027-01-06 · Axel-exclusive $552.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2027-01-06 10:45:00 → STL 2027-01-06 12:45:00; nonstop; 180 minutes. Local airport times.

2026-12-26 → 2027-01-07 · Axel-exclusive $390.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2027-01-07 14:05:00 → STL 2027-01-07 16:25:00; nonstop; 200 minutes. Local airport times.

2026-12-26 → 2027-01-07 · Axel-exclusive $552.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2027-01-07 10:45:00 → STL 2027-01-07 12:45:00; nonstop; 180 minutes. Local airport times.

2026-12-26 → 2027-01-09 · Axel-exclusive $390.00

  • Frontier Airlines F986: STL 2026-12-26 06:00:00 → CUN 2026-12-26 10:14:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2027-01-09 14:05:00 → STL 2027-01-09 16:25:00; nonstop; 200 minutes. Local airport times.

2026-12-26 → 2027-01-09 · Axel-exclusive $552.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-26 08:00:00 → CUN 2026-12-26 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-26 08:00:00 → MCI 2026-12-26 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-26 10:45:00 → CUN 2026-12-26 15:00:00.
  • Southwest Airlines WN1996: CUN 2027-01-09 10:45:00 → STL 2027-01-09 12:45:00; nonstop; 180 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Saint Louis (STL) to Cancun (CUN) · Dec 26, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Saint Louis to Cancun (CUN) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.