Saint Louis (STL) to Denver (DEN) · Jan 1, 2027 · return Jan 15, 2027

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.

Route overview: Saint Louis to Denver (DEN) flight deals

2027-01-01 → 2027-01-15 · Axel-exclusive $193.88

• Frontier Airlines F94567: STL 2027-01-01 19:54:00 → DEN 2027-01-01 21:25:00; nonstop; 151 minutes. Local airport times.
• Frontier Airlines F9630: DEN 2027-01-15 12:23:00 → STL 2027-01-15 15:26:00; nonstop; 123 minutes. Local airport times.

2027-01-01 → 2027-01-15 · Axel-exclusive $352.50

• United Airlines UA756: STL 2027-01-01 18:09:00 → DEN 2027-01-01 19:45:00; nonstop; 156 minutes. Local airport times.
• United Airlines UA1422: DEN 2027-01-15 17:30:00 → STL 2027-01-15 20:38:00; nonstop; 128 minutes. Local airport times.

2027-01-01 → 2027-01-15 · Axel-exclusive $339.00

• Southwest Airlines WN1755: STL 2027-01-01 08:25:00 → DEN 2027-01-01 09:45:00; nonstop; 140 minutes. Local airport times.
• Southwest Airlines WN235 / WN4472: DEN 2027-01-15 18:30:00 → STL 2027-01-16 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2027-01-15 18:30:00 → DAL 2027-01-15 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2027-01-15 22:50:00 → STL 2027-01-16 00:35:00.

2027-01-01 → 2027-01-15 · Axel-exclusive $408.00

• Delta Air Lines DL1597 / DL2849: STL 2027-01-01 06:03:00 → DEN 2027-01-01 10:03:00; 1 stop(s) via MSP; 300 minutes. Local airport times.
  • DL1597: STL 2027-01-01 06:03:00 → MSP 2027-01-01 07:43:00; layover at MSP: 67 minutes.
  • DL2849: MSP 2027-01-01 08:50:00 → DEN 2027-01-01 10:03:00.
• American Airlines AA2579 / AA2246: DEN 2027-01-15 13:15:00 → STL 2027-01-15 19:36:00; 1 stop(s) via DFW; 321 minutes. Local airport times.
  • AA2579: DEN 2027-01-15 13:15:00 → DFW 2027-01-15 16:20:00; layover at DFW: 95 minutes.
  • AA2246: DFW 2027-01-15 17:55:00 → STL 2027-01-15 19:36:00.

2027-01-01 → 2027-01-15 · Axel-exclusive $193.88

• Frontier Airlines F94567: STL 2027-01-01 16:21:00 → DEN 2027-01-01 17:52:00; nonstop; 151 minutes. Local airport times.
• Frontier Airlines F93302: DEN 2027-01-15 08:00:00 → STL 2027-01-15 11:04:00; nonstop; 124 minutes. Local airport times.

2027-01-01 → 2027-01-15 · Axel-exclusive $352.50

• United Airlines UA2459: STL 2027-01-01 08:48:00 → DEN 2027-01-01 10:25:00; nonstop; 157 minutes. Local airport times.
• United Airlines UA1422: DEN 2027-01-15 17:30:00 → STL 2027-01-15 20:38:00; nonstop; 128 minutes. Local airport times.

2027-01-01 → 2027-01-15 · Axel-exclusive $276.38

• Frontier Airlines F94567: STL 2027-01-01 15:04:00 → DEN 2027-01-01 16:37:00; nonstop; 153 minutes. Local airport times.
• American Airlines AA2579 / AA2246: DEN 2027-01-15 13:15:00 → STL 2027-01-15 19:36:00; 1 stop(s) via DFW; 321 minutes. Local airport times.
  • AA2579: DEN 2027-01-15 13:15:00 → DFW 2027-01-15 16:20:00; layover at DFW: 95 minutes.
  • AA2246: DFW 2027-01-15 17:55:00 → STL 2027-01-15 19:36:00.

2027-01-01 → 2027-01-15 · Axel-exclusive $352.50

• Southwest Airlines WN4372 / WN1758: STL 2027-01-01 12:40:00 → DEN 2027-01-01 16:30:00; 1 stop(s) via MCI; 290 minutes. Local airport times.
  • WN4372: STL 2027-01-01 12:40:00 → MCI 2027-01-01 13:45:00; layover at MCI: 115 minutes.
  • WN1758: MCI 2027-01-01 15:40:00 → DEN 2027-01-01 16:30:00.
• Southwest Airlines WN235 / WN4472: DEN 2027-01-15 18:30:00 → STL 2027-01-16 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2027-01-15 18:30:00 → DAL 2027-01-15 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2027-01-15 22:50:00 → STL 2027-01-16 00:35:00.

2027-01-01 → 2027-01-15 · Axel-exclusive $352.50

• Southwest Airlines WN665 / WN1313: STL 2027-01-01 10:35:00 → DEN 2027-01-01 15:05:00; 1 stop(s) via BNA; 330 minutes. Local airport times.
  • WN665: STL 2027-01-01 10:35:00 → BNA 2027-01-01 11:40:00; layover at BNA: 90 minutes.
  • WN1313: BNA 2027-01-01 13:10:00 → DEN 2027-01-01 15:05:00.
• Southwest Airlines WN235 / WN4472: DEN 2027-01-15 18:30:00 → STL 2027-01-16 00:35:00; 1 stop(s) via DAL; 305 minutes. Local airport times.
  • WN235: DEN 2027-01-15 18:30:00 → DAL 2027-01-15 21:30:00; layover at DAL: 80 minutes.
  • WN4472: DAL 2027-01-15 22:50:00 → STL 2027-01-16 00:35:00.

2027-01-01 → 2027-01-15 · Axel-exclusive $366.00

• United Airlines UA4439 / UA2495: STL 2027-01-01 05:25:00 → DEN 2027-01-01 10:26:00; 1 stop(s) via ORD; 361 minutes. Local airport times.
  • UA4439: STL 2027-01-01 05:25:00 → ORD 2027-01-01 06:58:00; layover at ORD: 102 minutes.
  • UA2495: ORD 2027-01-01 08:40:00 → DEN 2027-01-01 10:26:00.
• United Airlines UA1422: DEN 2027-01-15 17:30:00 → STL 2027-01-15 20:38:00; nonstop; 128 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Dec 31, 2026 · Return options
• Jan 2, 2027 · Return options
• Hotels in Denver with Axel

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