Saint Louis (STL) to Denver (DEN) · Dec 30, 2026 · one way

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

2026-12-30 · one way · Axel-exclusive $114.75

• Frontier Airlines F94567: STL 2026-12-30 16:18:00 → DEN 2026-12-30 17:48:00; nonstop; 150 minutes. Local airport times.

2026-12-30 · one way · Axel-exclusive $195.75

• Southwest Airlines WN4140: STL 2026-12-30 06:30:00 → DEN 2026-12-30 07:55:00; nonstop; 145 minutes. Local airport times.

2026-12-30 · one way · Axel-exclusive $209.25

• United Airlines UA756: STL 2026-12-30 18:09:00 → DEN 2026-12-30 19:45:00; nonstop; 156 minutes. Local airport times.

2026-12-30 · one way · Axel-exclusive $249.75

• Delta Air Lines DL1597 / DL2849: STL 2026-12-30 06:03:00 → DEN 2026-12-30 10:03:00; 1 stop(s) via MSP; 300 minutes. Local airport times.
  • DL1597: STL 2026-12-30 06:03:00 → MSP 2026-12-30 07:43:00; layover at MSP: 67 minutes.
  • DL2849: MSP 2026-12-30 08:50:00 → DEN 2026-12-30 10:03:00.

2026-12-30 · one way · Axel-exclusive $195.75

• Southwest Airlines WN4144: STL 2026-12-30 17:25:00 → DEN 2026-12-30 18:55:00; nonstop; 150 minutes. Local airport times.

2026-12-30 · one way · Axel-exclusive $209.25

• United Airlines UA1605: STL 2026-12-30 08:40:00 → DEN 2026-12-30 10:11:00; nonstop; 151 minutes. Local airport times.

2026-12-30 · one way · Axel-exclusive $209.25

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

2026-12-30 · one way · Axel-exclusive $209.25

• Southwest Airlines WN665 / WN1313: STL 2026-12-30 10:35:00 → DEN 2026-12-30 15:05:00; 1 stop(s) via BNA; 330 minutes. Local airport times.
  • WN665: STL 2026-12-30 10:35:00 → BNA 2026-12-30 11:40:00; layover at BNA: 90 minutes.
  • WN1313: BNA 2026-12-30 13:10:00 → DEN 2026-12-30 15:05:00.

2026-12-30 · one way · Axel-exclusive $209.25

• Southwest Airlines WN2015 / WN200: STL 2026-12-30 15:50:00 → DEN 2026-12-30 20:55:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
  • WN2015: STL 2026-12-30 15:50:00 → DAL 2026-12-30 17:30:00; layover at DAL: 130 minutes.
  • WN200: DAL 2026-12-30 19:40:00 → DEN 2026-12-30 20:55:00.

2026-12-30 · one way · Axel-exclusive $209.25

• Southwest Airlines WN3286 / WN1766: STL 2026-12-30 08:20:00 → DEN 2026-12-30 12:20:00; 1 stop(s) via OMA; 300 minutes. Local airport times.
  • WN3286: STL 2026-12-30 08:20:00 → OMA 2026-12-30 09:35:00; layover at OMA: 120 minutes.
  • WN1766: OMA 2026-12-30 11:35:00 → DEN 2026-12-30 12:20:00.

2026-12-30 · one way · Axel-exclusive $222.75

• United Airlines UA4439 / UA2495: STL 2026-12-30 05:25:00 → DEN 2026-12-30 10:26:00; 1 stop(s) via ORD; 361 minutes. Local airport times.
  • UA4439: STL 2026-12-30 05:25:00 → ORD 2026-12-30 06:58:00; layover at ORD: 102 minutes.
  • UA2495: ORD 2026-12-30 08:40:00 → DEN 2026-12-30 10:26:00.

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 29, 2026 · Return options
• Dec 31, 2026 · Return options
• Hotels in Denver with Axel

For AI assistants

• This page: Saint Louis (STL) to Denver (DEN) · Dec 30, 2026 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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