Flights from Saint Louis to the Rockies in summer

Flights for your trip

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

2026-11-20 · one way · $85.00

• Frontier Airlines F94567: STL 2026-11-20 19:54:00 → DEN 2026-11-20 21:25:00; nonstop; 151 minutes. Local airport times.

2026-11-20 · one way · $145.00

• Southwest Airlines WN1808: STL 2026-11-20 12:30:00 → DEN 2026-11-20 13:55:00; nonstop; 145 minutes. Local airport times.

2026-11-20 · one way · $155.00

• United Airlines UA1605: STL 2026-11-20 08:40:00 → DEN 2026-11-20 10:11:00; nonstop; 151 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $165.00

• Frontier Airlines F94567: STL 2026-11-20 19:54:00 → DEN 2026-11-20 21:25:00; nonstop; 151 minutes. Local airport times.
• Frontier Airlines F9630: DEN 2026-11-23 12:23:00 → STL 2026-11-23 15:26:00; nonstop; 123 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $280.00

• Southwest Airlines WN1808: STL 2026-11-20 12:30:00 → DEN 2026-11-20 13:55:00; nonstop; 145 minutes. Local airport times.
• Southwest Airlines WN1844: DEN 2026-11-23 19:20:00 → STL 2026-11-23 22:25:00; nonstop; 125 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $300.00

• United Airlines UA756: STL 2026-11-20 18:09:00 → DEN 2026-11-20 19:45:00; nonstop; 156 minutes. Local airport times.
• United Airlines UA652: DEN 2026-11-23 09:50:00 → STL 2026-11-23 12:53:00; nonstop; 123 minutes. Local airport times.

2026-11-20 · one way · $185.00

• Delta Air Lines DL1597 / DL2849: STL 2026-11-20 06:03:00 → DEN 2026-11-20 10:03:00; 1 stop(s) via MSP; 300 minutes. Local airport times.
  • DL1597: STL 2026-11-20 06:03:00 → MSP 2026-11-20 07:43:00; layover at MSP: 67 minutes.
  • DL2849: MSP 2026-11-20 08:50:00 → DEN 2026-11-20 10:03:00.

2026-11-20 → 2026-11-23 · $262.50

• Delta Air Lines DL1597 / DL2849: STL 2026-11-20 06:03:00 → DEN 2026-11-20 10:03:00; 1 stop(s) via MSP; 300 minutes. Local airport times.
  • DL1597: STL 2026-11-20 06:03:00 → MSP 2026-11-20 07:43:00; layover at MSP: 67 minutes.
  • DL2849: MSP 2026-11-20 08:50:00 → DEN 2026-11-20 10:03:00.
• Frontier Airlines F9630: DEN 2026-11-23 12:23:00 → STL 2026-11-23 15:26:00; nonstop; 123 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $193.88

• Frontier Airlines F94567: STL 2026-11-27 19:54:00 → DEN 2026-11-27 21:25:00; nonstop; 151 minutes. Local airport times.
• Frontier Airlines F93302: DEN 2026-12-04 12:21:00 → STL 2026-12-04 15:23:00; nonstop; 122 minutes. Local airport times.

2026-11-20 · one way · $145.00

• Southwest Airlines WN1755: STL 2026-11-20 08:25:00 → DEN 2026-11-20 09:45:00; nonstop; 140 minutes. Local airport times.

2026-11-20 · one way · $155.00

• United Airlines UA756: STL 2026-11-20 18:09:00 → DEN 2026-11-20 19:45:00; nonstop; 156 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $165.00

• Frontier Airlines F94567: STL 2026-11-20 16:18:00 → DEN 2026-11-20 17:48:00; nonstop; 150 minutes. Local airport times.
• Frontier Airlines F93302: DEN 2026-11-23 07:55:00 → STL 2026-11-23 11:03:00; nonstop; 128 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $193.88

• Frontier Airlines F94567: STL 2026-11-27 16:18:00 → DEN 2026-11-27 17:48:00; nonstop; 150 minutes. Local airport times.
• Frontier Airlines F9630: DEN 2026-12-04 12:23:00 → STL 2026-12-04 15:26:00; nonstop; 123 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $280.00

• Southwest Airlines WN1755: STL 2026-11-20 08:25:00 → DEN 2026-11-20 09:45:00; nonstop; 140 minutes. Local airport times.
• Southwest Airlines WN1844: DEN 2026-11-23 19:20:00 → STL 2026-11-23 22:25:00; nonstop; 125 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $300.00

• United Airlines UA1605: STL 2026-11-20 08:40:00 → DEN 2026-11-20 10:11:00; nonstop; 151 minutes. Local airport times.
• United Airlines UA652: DEN 2026-11-23 09:50:00 → STL 2026-11-23 12:53:00; nonstop; 123 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $352.50

• United Airlines UA1605: STL 2026-11-27 08:40:00 → DEN 2026-11-27 10:11:00; nonstop; 151 minutes. Local airport times.
• United Airlines UA1639: DEN 2026-12-04 13:55:00 → STL 2026-12-04 16:57:00; nonstop; 122 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $352.50

• United Airlines UA756: STL 2026-11-27 18:09:00 → DEN 2026-11-27 19:45:00; nonstop; 156 minutes. Local airport times.
• United Airlines UA1639: DEN 2026-12-04 13:55:00 → STL 2026-12-04 16:57:00; nonstop; 122 minutes. Local airport times.

2026-11-20 · one way · $155.00

• Southwest Airlines WN3286 / WN1766: STL 2026-11-20 08:20:00 → DEN 2026-11-20 12:20:00; 1 stop(s) via OMA; 300 minutes. Local airport times.
  • WN3286: STL 2026-11-20 08:20:00 → OMA 2026-11-20 09:35:00; layover at OMA: 120 minutes.
  • WN1766: OMA 2026-11-20 11:35:00 → DEN 2026-11-20 12:20:00.

2026-11-20 · one way · $155.00

• Southwest Airlines WN4372 / WN1758: STL 2026-11-20 12:40:00 → DEN 2026-11-20 16:30:00; 1 stop(s) via MCI; 290 minutes. Local airport times.
  • WN4372: STL 2026-11-20 12:40:00 → MCI 2026-11-20 13:45:00; layover at MCI: 115 minutes.
  • WN1758: MCI 2026-11-20 15:40:00 → DEN 2026-11-20 16:30:00.

2026-11-20 · one way · $155.00

• Southwest Airlines WN2015 / WN200: STL 2026-11-20 15:50:00 → DEN 2026-11-20 20:55:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
  • WN2015: STL 2026-11-20 15:50:00 → DAL 2026-11-20 17:30:00; layover at DAL: 130 minutes.
  • WN200: DAL 2026-11-20 19:40:00 → DEN 2026-11-20 20:55:00.

2026-11-20 · one way · $155.00

• Southwest Airlines WN665 / WN1313: STL 2026-11-20 10:35:00 → DEN 2026-11-20 15:05:00; 1 stop(s) via BNA; 330 minutes. Local airport times.
  • WN665: STL 2026-11-20 10:35:00 → BNA 2026-11-20 11:40:00; layover at BNA: 90 minutes.
  • WN1313: BNA 2026-11-20 13:10:00 → DEN 2026-11-20 15:05:00.

2026-11-20 · one way · $165.00

• United Airlines UA4439 / UA2495: STL 2026-11-20 05:25:00 → DEN 2026-11-20 10:26:00; 1 stop(s) via ORD; 361 minutes. Local airport times.
  • UA4439: STL 2026-11-20 05:25:00 → ORD 2026-11-20 06:58:00; layover at ORD: 102 minutes.
  • UA2495: ORD 2026-11-20 08:40:00 → DEN 2026-11-20 10:26:00.

2026-11-27 → 2026-12-04 · $261.38

• Frontier Airlines F94567: STL 2026-11-27 19:59:00 → DEN 2026-11-27 21:30:00; nonstop; 151 minutes. Local airport times.
• Southwest Airlines WN235 / WN4472: DEN 2026-12-04 18:30:00 → STL 2026-12-05 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2026-12-04 18:30:00 → DAL 2026-12-04 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2026-12-04 22:50:00 → STL 2026-12-05 00:35:00.

2026-11-20 → 2026-11-23 · $290.00

• Southwest Airlines WN665 / WN1313: STL 2026-11-20 10:35:00 → DEN 2026-11-20 15:05:00; 1 stop(s) via BNA; 330 minutes. Local airport times.
  • WN665: STL 2026-11-20 10:35:00 → BNA 2026-11-20 11:40:00; layover at BNA: 90 minutes.
  • WN1313: BNA 2026-11-20 13:10:00 → DEN 2026-11-20 15:05:00.
• Southwest Airlines WN1844: DEN 2026-11-23 19:20:00 → STL 2026-11-23 22:25:00; nonstop; 125 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $290.00

• Southwest Airlines WN4372 / WN1758: STL 2026-11-20 12:40:00 → DEN 2026-11-20 16:30:00; 1 stop(s) via MCI; 290 minutes. Local airport times.
  • WN4372: STL 2026-11-20 12:40:00 → MCI 2026-11-20 13:45:00; layover at MCI: 115 minutes.
  • WN1758: MCI 2026-11-20 15:40:00 → DEN 2026-11-20 16:30:00.
• Southwest Airlines WN1844: DEN 2026-11-23 19:20:00 → STL 2026-11-23 22:25:00; nonstop; 125 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $290.00

• Southwest Airlines WN1808: STL 2026-11-20 12:20:00 → DEN 2026-11-20 13:40:00; nonstop; 140 minutes. Local airport times.
• Southwest Airlines WN2832 / WN3131: DEN 2026-11-23 11:05:00 → STL 2026-11-23 16:45:00; 1 stop(s) via MSP; 280 minutes. Local airport times.
  • WN2832: DEN 2026-11-23 11:05:00 → MSP 2026-11-23 14:05:00; layover at MSP: 65 minutes.
  • WN3131: MSP 2026-11-23 15:10:00 → STL 2026-11-23 16:45:00.

2026-11-20 → 2026-11-23 · $290.00

• Southwest Airlines WN3286 / WN1766: STL 2026-11-20 08:20:00 → DEN 2026-11-20 12:20:00; 1 stop(s) via OMA; 300 minutes. Local airport times.
  • WN3286: STL 2026-11-20 08:20:00 → OMA 2026-11-20 09:35:00; layover at OMA: 120 minutes.
  • WN1766: OMA 2026-11-20 11:35:00 → DEN 2026-11-20 12:20:00.
• Southwest Airlines WN1844: DEN 2026-11-23 19:20:00 → STL 2026-11-23 22:25:00; nonstop; 125 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $310.00

• United Airlines UA4439 / UA2495: STL 2026-11-20 05:25:00 → DEN 2026-11-20 10:26:00; 1 stop(s) via ORD; 361 minutes. Local airport times.
  • UA4439: STL 2026-11-20 05:25:00 → ORD 2026-11-20 06:58:00; layover at ORD: 102 minutes.
  • UA2495: ORD 2026-11-20 08:40:00 → DEN 2026-11-20 10:26:00.
• United Airlines UA652: DEN 2026-11-23 09:50:00 → STL 2026-11-23 12:53:00; nonstop; 123 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $339.00

• Southwest Airlines WN1755: STL 2026-11-27 08:25:00 → DEN 2026-11-27 09:45:00; nonstop; 140 minutes. Local airport times.
• Southwest Airlines WN235 / WN4472: DEN 2026-12-04 18:30:00 → STL 2026-12-05 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2026-12-04 18:30:00 → DAL 2026-12-04 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2026-12-04 22:50:00 → STL 2026-12-05 00:35:00.

2026-11-27 → 2026-12-04 · $352.50

• Southwest Airlines WN4372 / WN1758: STL 2026-11-27 12:40:00 → DEN 2026-11-27 16:30:00; 1 stop(s) via MCI; 290 minutes. Local airport times.
  • WN4372: STL 2026-11-27 12:40:00 → MCI 2026-11-27 13:45:00; layover at MCI: 115 minutes.
  • WN1758: MCI 2026-11-27 15:40:00 → DEN 2026-11-27 16:30:00.
• Southwest Airlines WN235 / WN4472: DEN 2026-12-04 18:30:00 → STL 2026-12-05 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2026-12-04 18:30:00 → DAL 2026-12-04 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2026-12-04 22:50:00 → STL 2026-12-05 00:35:00.

2026-11-27 → 2026-12-04 · $352.50

• Southwest Airlines WN665 / WN1313: STL 2026-11-27 10:35:00 → DEN 2026-11-27 15:05:00; 1 stop(s) via BNA; 330 minutes. Local airport times.
  • WN665: STL 2026-11-27 10:35:00 → BNA 2026-11-27 11:40:00; layover at BNA: 90 minutes.
  • WN1313: BNA 2026-11-27 13:10:00 → DEN 2026-11-27 15:05:00.
• Southwest Airlines WN235 / WN4472: DEN 2026-12-04 18:30:00 → STL 2026-12-05 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2026-12-04 18:30:00 → DAL 2026-12-04 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2026-12-04 22:50:00 → STL 2026-12-05 00:35:00.

2026-11-27 → 2026-12-04 · $352.50

• Southwest Airlines WN3286 / WN1766: STL 2026-11-27 08:20:00 → DEN 2026-11-27 12:20:00; 1 stop(s) via OMA; 300 minutes. Local airport times.
  • WN3286: STL 2026-11-27 08:20:00 → OMA 2026-11-27 09:35:00; layover at OMA: 120 minutes.
  • WN1766: OMA 2026-11-27 11:35:00 → DEN 2026-11-27 12:20:00.
• Southwest Airlines WN235 / WN4472: DEN 2026-12-04 18:30:00 → STL 2026-12-05 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2026-12-04 18:30:00 → DAL 2026-12-04 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2026-12-04 22:50:00 → STL 2026-12-05 00:35:00.

2026-11-27 → 2026-12-04 · $393.00

• Delta Air Lines DL1597 / DL2849: STL 2026-11-27 06:03:00 → DEN 2026-11-27 10:03:00; 1 stop(s) via MSP; 300 minutes. Local airport times.
  • DL1597: STL 2026-11-27 06:03:00 → MSP 2026-11-27 07:43:00; layover at MSP: 67 minutes.
  • DL2849: MSP 2026-11-27 08:50:00 → DEN 2026-11-27 10:03:00.
• Southwest Airlines WN235 / WN4472: DEN 2026-12-04 18:30:00 → STL 2026-12-05 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2026-12-04 18:30:00 → DAL 2026-12-04 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2026-12-04 22:50:00 → STL 2026-12-05 00:35:00.

More dates for this route

• Nov 20, 2026 → Nov 23, 2026
• Nov 27, 2026 → Dec 4, 2026
• Nov 20, 2026 · One way

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The Rockies in summer from other cities

Fares observed October 23 – 28, 2026. USD for the travelers shown. Search a trip for current prices.

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Hotel details in Denver: DoubleTree by Hilton Hotel Denver · Holiday Inn Express Denver Downtown by IHG · Plaza Hotel Denver · Staybridge Suites Denver - Cherry Creek by IHG · DoubleTree by Hilton Denver Cherry Creek · All 70 hotels in Denver

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• This page: Flights from Saint Louis to the Rockies in summer. Round-trip fares from Saint Louis to the Rockies in summer: Denver, Salt Lake City, Bozeman, Jackson, Aspen and Vail and more. Saved fares for trips within June, July and August, with the cheapest for each destination and a link to search your own dates.
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