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

Saint Louis → Cancun

Jun 9, 2027 · return Jun 22, 2027

STL → CUN1 adulteconomyRound trip

9 flight options · 5 airlines

Nonstop flights

Wed, Jun 9 – Tue, Jun 22

Frontier Airlines
6:00 amSTL
3h 28m
Nonstop
9:28 amCUN
Frontier Airlines
1:40 pmCUN
3h 26m
Nonstop
5:06 pmSTL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Jun 9 – Tue, Jun 22

Southwest Airlines
1:15 pmSTL
3h 5m
Nonstop
4:20 pmCUN
Southwest Airlines
2:25 pmCUN
3h 15m
Nonstop
5:40 pmSTL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Jun 9 – Tue, Jun 22

Southwest Airlines
9:20 amSTL
3h 5m
Nonstop
12:25 pmCUN
Southwest Airlines
2:25 pmCUN
3h 15m
Nonstop
5:40 pmSTL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Wed, Jun 9 – Tue, Jun 22

American Airlines
5:00 amSTL
6h 29m
CLT · 1h 25m
11:29 amCUN
American Airlines
12:51 pmCUN
3h 44m
Nonstop
4:35 pmSTL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Jun 9 – Tue, Jun 22

United Airlines
5:25 amSTL
7h 18m
ORD · 1h 42m
12:43 pmCUN
United Airlines
8:39 amCUN
6h 37m
IAH · 2h
3:16 pmSTL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Jun 9 – Tue, Jun 22

Delta Air Lines
2:31 pmSTL
5h 37m
ATL · 1h 24m
8:08 pmCUN
Delta Air Lines
5:35 pmCUN
6h 51m
ATL · 2h 15m
12:26 am+1STL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Jun 9 – Tue, Jun 22

Frontier Airlines
6:05 amSTL
3h 14m
Nonstop
9:19 amCUN
Frontier Airlines
11:28 amCUN
7h 14m
ATL · 2h 31m
6:42 pmSTL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Jun 9 – Tue, Jun 22

Southwest Airlines
8:00 amSTL
6h
MCI · 1h 35m
2:00 pmCUN
Southwest Airlines
2:25 pmCUN
3h 15m
Nonstop
5:40 pmSTL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Jun 9 – Tue, Jun 22

Southwest Airlines
11:45 amSTL
7h
HOU · 2h 45m
6:45 pmCUN
Southwest Airlines
2:25 pmCUN
3h 15m
Nonstop
5:40 pmSTL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

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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Explore this route

All dates for this routeJun 8, 2027 · Return optionsJun 10, 2027 · Return optionsHotels in Cancun with Axel
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.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-06-09 → 2027-06-22Frontier AirlinesF986 / F987Axel-exclusive $300.002026-10-29T01:28:25Z
2027-06-09 → 2027-06-22Southwest AirlinesWN1995 / WN1996Axel-exclusive $440.002026-10-29T01:28:25Z
2027-06-09 → 2027-06-22American AirlinesAA1992 + AA895 / AA2756Axel-exclusive $452.502026-10-29T01:28:25Z
2027-06-09 → 2027-06-22United AirlinesUA4439 + UA2371 / UA1059 + UA6243Axel-exclusive $455.002026-10-29T01:28:25Z
2027-06-09 → 2027-06-22Delta Air LinesDL1102 + DL1939 / DL595 + DL1403Axel-exclusive $465.002026-10-29T01:28:25Z
2027-06-09 → 2027-06-22Southwest AirlinesWN1985 / WN1996Axel-exclusive $440.002026-10-29T01:28:25Z
2027-06-09 → 2027-06-22Frontier AirlinesF986 / F9152 + F94473Axel-exclusive $290.002026-10-29T01:28:25Z
2027-06-09 → 2027-06-22Southwest AirlinesWN4164 + WN144 / WN1996Axel-exclusive $427.502026-10-29T01:28:25Z
2027-06-09 → 2027-06-22Southwest AirlinesWN3155 + WN305 / WN1996Axel-exclusive $427.502026-10-29T01:28:25Z

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

2027-06-09 → 2027-06-22 · Axel-exclusive $300.00

  • Frontier Airlines F986: STL 2027-06-09 06:00:00 → CUN 2027-06-09 09:28:00; nonstop; 208 minutes. Local airport times.
  • Frontier Airlines F987: CUN 2027-06-22 13:40:00 → STL 2027-06-22 17:06:00; nonstop; 206 minutes. Local airport times.

2027-06-09 → 2027-06-22 · Axel-exclusive $440.00

  • Southwest Airlines WN1995: STL 2027-06-09 13:15:00 → CUN 2027-06-09 16:20:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN1996: CUN 2027-06-22 14:25:00 → STL 2027-06-22 17:40:00; nonstop; 195 minutes. Local airport times.

2027-06-09 → 2027-06-22 · Axel-exclusive $452.50

  • American Airlines AA1992 / AA895: STL 2027-06-09 05:00:00 → CUN 2027-06-09 11:29:00; 1 stop(s) via CLT; 389 minutes. Local airport times.
    • AA1992: STL 2027-06-09 05:00:00 → CLT 2027-06-09 07:55:00; layover at CLT: 85 minutes.
    • AA895: CLT 2027-06-09 09:20:00 → CUN 2027-06-09 11:29:00.
  • American Airlines AA2756: CUN 2027-06-22 12:51:00 → STL 2027-06-22 16:35:00; nonstop; 224 minutes. Local airport times.

2027-06-09 → 2027-06-22 · Axel-exclusive $455.00

  • United Airlines UA4439 / UA2371: STL 2027-06-09 05:25:00 → CUN 2027-06-09 12:43:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
    • UA4439: STL 2027-06-09 05:25:00 → ORD 2027-06-09 06:58:00; layover at ORD: 102 minutes.
    • UA2371: ORD 2027-06-09 08:40:00 → CUN 2027-06-09 12:43:00.
  • United Airlines UA1059 / UA6243: CUN 2027-06-22 08:39:00 → STL 2027-06-22 15:16:00; 1 stop(s) via IAH; 397 minutes. Local airport times.
    • UA1059: CUN 2027-06-22 08:39:00 → IAH 2027-06-22 11:10:00; layover at IAH: 120 minutes.
    • UA6243: IAH 2027-06-22 13:10:00 → STL 2027-06-22 15:16:00.

2027-06-09 → 2027-06-22 · Axel-exclusive $465.00

  • Delta Air Lines DL1102 / DL1939: STL 2027-06-09 14:31:00 → CUN 2027-06-09 20:08:00; 1 stop(s) via ATL; 337 minutes. Local airport times.
    • DL1102: STL 2027-06-09 14:31:00 → ATL 2027-06-09 17:05:00; layover at ATL: 84 minutes.
    • DL1939: ATL 2027-06-09 18:29:00 → CUN 2027-06-09 20:08:00.
  • Delta Air Lines DL595 / DL1403: CUN 2027-06-22 17:35:00 → STL 2027-06-23 00:26:00; 1 stop(s) via ATL; 411 minutes. Local airport times.
    • DL595: CUN 2027-06-22 17:35:00 → ATL 2027-06-22 21:25:00; layover at ATL: 135 minutes.
    • DL1403: ATL 2027-06-22 23:40:00 → STL 2027-06-23 00:26:00.

2027-06-09 → 2027-06-22 · Axel-exclusive $440.00

  • Southwest Airlines WN1985: STL 2027-06-09 09:20:00 → CUN 2027-06-09 12:25:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN1996: CUN 2027-06-22 14:25:00 → STL 2027-06-22 17:40:00; nonstop; 195 minutes. Local airport times.

2027-06-09 → 2027-06-22 · Axel-exclusive $290.00

  • Frontier Airlines F986: STL 2027-06-09 06:05:00 → CUN 2027-06-09 09:19:00; nonstop; 194 minutes. Local airport times.
  • Frontier Airlines F9152 / F94473: CUN 2027-06-22 11:28:00 → STL 2027-06-22 18:42:00; 1 stop(s) via ATL; 434 minutes. Local airport times.
    • F9152: CUN 2027-06-22 11:28:00 → ATL 2027-06-22 15:18:00; layover at ATL: 151 minutes.
    • F94473: ATL 2027-06-22 17:49:00 → STL 2027-06-22 18:42:00.

2027-06-09 → 2027-06-22 · Axel-exclusive $427.50

  • Southwest Airlines WN4164 / WN144: STL 2027-06-09 08:00:00 → CUN 2027-06-09 14:00:00; 1 stop(s) via MCI; 360 minutes. Local airport times.
    • WN4164: STL 2027-06-09 08:00:00 → MCI 2027-06-09 09:10:00; layover at MCI: 95 minutes.
    • WN144: MCI 2027-06-09 10:45:00 → CUN 2027-06-09 14:00:00.
  • Southwest Airlines WN1996: CUN 2027-06-22 14:25:00 → STL 2027-06-22 17:40:00; nonstop; 195 minutes. Local airport times.

2027-06-09 → 2027-06-22 · Axel-exclusive $427.50

  • Southwest Airlines WN3155 / WN305: STL 2027-06-09 11:45:00 → CUN 2027-06-09 18:45:00; 1 stop(s) via HOU; 420 minutes. Local airport times.
    • WN3155: STL 2027-06-09 11:45:00 → HOU 2027-06-09 13:50:00; layover at HOU: 165 minutes.
    • WN305: HOU 2027-06-09 16:35:00 → CUN 2027-06-09 18:45:00.
  • Southwest Airlines WN1996: CUN 2027-06-22 14:25:00 → STL 2027-06-22 17:40:00; nonstop; 195 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Saint Louis (STL) to Cancun (CUN) · Jun 9, 2027 · return Jun 22, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.