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Saint Louis → Cancun

Dec 22, 2026 · return Dec 29, 2026

STL → CUN1 adulteconomyRound trip

9 flight options · 3 airlines

Nonstop flights

Tue, Dec 22 – Tue, Dec 29

Frontier Airlines
6:05 amSTL
3h 14m
Nonstop
10:19 amCUN
Frontier Airlines
2:05 pmCUN
3h 20m
Nonstop
4:25 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Dec 29

Southwest Airlines
1:15 pmSTL
3h 5m
Nonstop
5:20 pmCUN
Southwest Airlines
12:00 pmCUN
3h 10m
Nonstop
2:10 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Dec 29

Southwest Airlines
10:20 amSTL
3h 5m
Nonstop
2:25 pmCUN
Southwest Airlines
2:25 pmCUN
3h 15m
Nonstop
4:40 pmSTL

Round-trip total · 1 adult · Taxes included

One-stop flights

Tue, Dec 22 – Tue, Dec 29

Delta Air Lines
2:31 pmSTL
5h 37m
ATL · 1h 24m
9:08 pmCUN
Delta Air Lines
5:35 pmCUN
6h 51m
ATL · 2h 15m
11:26 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Dec 29

Frontier Airlines
6:20 amSTL
3h 14m
Nonstop
10:34 amCUN
Frontier Airlines
11:28 amCUN
7h 14m
ATL · 2h 31m
5:42 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – 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

Tue, Dec 22 – Tue, Dec 29

Southwest Airlines
12:20 pmSTL
3h 5m
Nonstop
4:25 pmCUN
Southwest Airlines
2:45 pmCUN
7h
BNA · 2h 55m
8:45 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Dec 29

Southwest Airlines
11:45 amSTL
7h
HOU · 2h 45m
7:45 pmCUN
Southwest Airlines
2:25 pmCUN
3h 15m
Nonstop
4:40 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Dec 29

Southwest Airlines
1:05 pmSTL
6h 20m
MDW · 1h 35m
8:25 pmCUN
Southwest Airlines
2:25 pmCUN
3h 15m
Nonstop
4:40 pmSTL

Round-trip total · 1 adult · Taxes included

Make this trip yours

STL ⇄ CUN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeNov 24, 2026 → Nov 29, 2026Dec 22, 2026 → Dec 27, 2026Dec 30, 2026 → Jan 2, 2027Jan 15, 2027 → Jan 18, 2027Oct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Jan 22, 2027 → Jan 25, 2027Oct 30, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-22 → 2026-12-29Frontier AirlinesF986 / F987$455.002026-10-29T01:28:25Z
2026-12-22 → 2026-12-29Southwest AirlinesWN1995 / WN1986$665.002026-10-29T01:28:25Z
2026-12-22 → 2026-12-29Delta Air LinesDL1102 + DL1939 / DL595 + DL1403$707.002026-10-29T01:28:25Z
2026-12-22 → 2026-12-29Southwest AirlinesWN1995 / WN1996$665.002026-10-29T01:28:25Z
2026-12-22 → 2026-12-29Frontier AirlinesF986 / F9152 + F94473$437.502026-10-29T01:28:25Z
2026-12-22 → 2026-12-29Southwest AirlinesWN4164 + WN144 / WN1996$647.502026-10-29T01:28:25Z
2026-12-22 → 2026-12-29Southwest AirlinesWN1995 / WN390 + WN742$647.502026-10-29T01:28:25Z
2026-12-22 → 2026-12-29Southwest AirlinesWN3155 + WN305 / WN1996$647.502026-10-29T01:28:25Z
2026-12-22 → 2026-12-29Southwest AirlinesWN1679 + WN218 / WN1996$647.502026-10-29T01:28:25Z

2026-12-22 → 2026-12-29 · $455.00

  • Frontier Airlines F986: STL 2026-12-22 06:05:00 → CUN 2026-12-22 10:19:00; 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.

2026-12-22 → 2026-12-29 · $665.00

  • Southwest Airlines WN1995: STL 2026-12-22 13:15:00 → CUN 2026-12-22 17:20:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN1986: CUN 2026-12-29 12:00:00 → STL 2026-12-29 14:10:00; nonstop; 190 minutes. Local airport times.

2026-12-22 → 2026-12-29 · $707.00

  • Delta Air Lines DL1102 / DL1939: STL 2026-12-22 14:31:00 → CUN 2026-12-22 21:08:00; 1 stop(s) via ATL; 337 minutes. Local airport times.
    • DL1102: STL 2026-12-22 14:31:00 → ATL 2026-12-22 17:05:00; layover at ATL: 84 minutes.
    • DL1939: ATL 2026-12-22 18:29:00 → CUN 2026-12-22 21:08:00.
  • Delta Air Lines DL595 / DL1403: CUN 2026-12-29 17:35:00 → STL 2026-12-29 23:26:00; 1 stop(s) via ATL; 411 minutes. Local airport times.
    • DL595: CUN 2026-12-29 17:35:00 → ATL 2026-12-29 20:25:00; layover at ATL: 135 minutes.
    • DL1403: ATL 2026-12-29 22:40:00 → STL 2026-12-29 23:26:00.

2026-12-22 → 2026-12-29 · $665.00

  • Southwest Airlines WN1995: STL 2026-12-22 10:20:00 → CUN 2026-12-22 14:25:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN1996: CUN 2026-12-29 14:25:00 → STL 2026-12-29 16:40:00; nonstop; 195 minutes. Local airport times.

2026-12-22 → 2026-12-29 · $437.50

  • Frontier Airlines F986: STL 2026-12-22 06:20:00 → CUN 2026-12-22 10:34:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F9152 / F94473: CUN 2026-12-29 11:28:00 → STL 2026-12-29 17:42:00; 1 stop(s) via ATL; 434 minutes. Local airport times.
    • F9152: CUN 2026-12-29 11:28:00 → ATL 2026-12-29 14:18:00; layover at ATL: 151 minutes.
    • F94473: ATL 2026-12-29 16:49:00 → STL 2026-12-29 17:42:00.

2026-12-22 → 2026-12-29 · $647.50

  • Southwest Airlines WN4164 / WN144: STL 2026-12-22 08:00:00 → CUN 2026-12-22 15:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2026-12-22 08:00:00 → MCI 2026-12-22 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2026-12-22 10:45:00 → CUN 2026-12-22 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.

2026-12-22 → 2026-12-29 · $647.50

  • Southwest Airlines WN1995: STL 2026-12-22 12:20:00 → CUN 2026-12-22 16:25:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN390 / WN742: CUN 2026-12-29 14:45:00 → STL 2026-12-29 20:45:00; 1 stop(s) via BNA; 420 minutes. Local airport times.
    • WN390: CUN 2026-12-29 14:45:00 → BNA 2026-12-29 16:35:00; layover at BNA: 175 minutes.
    • WN742: BNA 2026-12-29 19:30:00 → STL 2026-12-29 20:45:00.

2026-12-22 → 2026-12-29 · $647.50

  • Southwest Airlines WN3155 / WN305: STL 2026-12-22 11:45:00 → CUN 2026-12-22 19:45:00; 1 stop(s) via HOU; 420 minutes. Local airport times.
    • WN3155: STL 2026-12-22 11:45:00 → HOU 2026-12-22 13:50:00; layover at HOU: 165 minutes.
    • WN305: HOU 2026-12-22 16:35:00 → CUN 2026-12-22 19:45:00.
  • Southwest Airlines WN1996: CUN 2026-12-29 14:25:00 → STL 2026-12-29 16:40:00; nonstop; 195 minutes. Local airport times.

2026-12-22 → 2026-12-29 · $647.50

  • Southwest Airlines WN1679 / WN218: STL 2026-12-22 13:05:00 → CUN 2026-12-22 20:25:00; 1 stop(s) via MDW; 380 minutes. Local airport times.
    • WN1679: STL 2026-12-22 13:05:00 → MDW 2026-12-22 14:10:00; layover at MDW: 95 minutes.
    • WN218: MDW 2026-12-22 15:45:00 → CUN 2026-12-22 20:25:00.
  • Southwest Airlines WN1996: CUN 2026-12-29 14:25:00 → STL 2026-12-29 16:40:00; nonstop; 195 minutes. Local airport times.

More dates for this route