Saint Louis (STL) to Denver (DEN), Nov 21, 2026 – Dec 3, 2026: from $165 round trip

Saint Louis (STL) to Denver (DEN), Nov 21, 2026 – Dec 3, 2026: from $165 round trip on Axel, checked Nov 11, 2026. Lowest published fare: $165 round trip, Axel-exclusive, Frontier Airlines, nonstop, Nov 21, 2026 – Dec 3, 2026, 1 adult, economy, checked Nov 11, 2026. 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.

Hotels in Denver for these trips

Hotels: under a trip, hotels in Denver for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Denver for these nights (Nov 21 – Dec 3, 2026 · 12 nights · 2 adults, 1 room): 3★ Hilton Garden Inn Denver/Cherry Creek, $92 a night, $1,109 for 12 nights · 4★ DoubleTree by Hilton Denver Cherry Creek, $84 a night, $1,009 for 12 nights · 5★ Four Seasons Denver Hotel, $636 a night, $7,635 for 12 nights

All hotels in Denver

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

2026-11-21 → 2026-12-03 · Axel-exclusive $165.00

• Frontier Airlines F94567: STL 2026-11-21 19:54:00 → DEN 2026-11-21 21:25:00; nonstop; 151 minutes. Local airport times.
• Frontier Airlines F9630: DEN 2026-12-03 12:23:00 → STL 2026-12-03 15:26:00; nonstop; 123 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $280.00

• Southwest Airlines WN660: STL 2026-11-21 17:25:00 → DEN 2026-11-21 18:50:00; nonstop; 145 minutes. Local airport times.
• Southwest Airlines WN2170: DEN 2026-12-03 13:30:00 → STL 2026-12-03 16:25:00; nonstop; 115 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $300.00

• United Airlines UA1352: STL 2026-11-21 08:50:00 → DEN 2026-11-21 10:21:00; nonstop; 151 minutes. Local airport times.
• United Airlines UA652: DEN 2026-12-03 09:50:00 → STL 2026-12-03 12:53:00; nonstop; 123 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $320.00

• Delta Air Lines DL1597 / DL2849: STL 2026-11-21 06:03:00 → DEN 2026-11-21 10:03:00; 1 stop(s) via MSP; 300 minutes. Local airport times.
  • DL1597: STL 2026-11-21 06:03:00 → MSP 2026-11-21 07:43:00; layover at MSP: 67 minutes.
  • DL2849: MSP 2026-11-21 08:50:00 → DEN 2026-11-21 10:03:00.
• Southwest Airlines WN2170: DEN 2026-12-03 13:30:00 → STL 2026-12-03 16:25:00; nonstop; 115 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $165.00

• Frontier Airlines F94567: STL 2026-11-21 15:04:00 → DEN 2026-11-21 16:37:00; nonstop; 153 minutes. Local airport times.
• Frontier Airlines F93302: DEN 2026-12-03 07:47:00 → STL 2026-12-03 10:57:00; nonstop; 130 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $280.00

• Southwest Airlines WN4141: STL 2026-11-21 08:05:00 → DEN 2026-11-21 09:30:00; nonstop; 145 minutes. Local airport times.
• Southwest Airlines WN2170: DEN 2026-12-03 13:30:00 → STL 2026-12-03 16:25:00; nonstop; 115 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $300.00

• United Airlines UA663: STL 2026-11-21 16:39:00 → DEN 2026-11-21 18:10:00; nonstop; 151 minutes. Local airport times.
• United Airlines UA652: DEN 2026-12-03 09:50:00 → STL 2026-12-03 12:53:00; nonstop; 123 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $290.00

• Southwest Airlines WN665 / WN1313: STL 2026-11-21 10:35:00 → DEN 2026-11-21 15:05:00; 1 stop(s) via BNA; 330 minutes. Local airport times.
  • WN665: STL 2026-11-21 10:35:00 → BNA 2026-11-21 11:40:00; layover at BNA: 90 minutes.
  • WN1313: BNA 2026-11-21 13:10:00 → DEN 2026-11-21 15:05:00.
• Southwest Airlines WN2170: DEN 2026-12-03 13:30:00 → STL 2026-12-03 16:25:00; nonstop; 115 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $290.00

• Southwest Airlines WN2015 / WN200: STL 2026-11-21 15:50:00 → DEN 2026-11-21 20:55:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
  • WN2015: STL 2026-11-21 15:50:00 → DAL 2026-11-21 17:30:00; layover at DAL: 130 minutes.
  • WN200: DAL 2026-11-21 19:40:00 → DEN 2026-11-21 20:55:00.
• Southwest Airlines WN2170: DEN 2026-12-03 13:30:00 → STL 2026-12-03 16:25:00; nonstop; 115 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $290.00

• Southwest Airlines WN4372 / WN1758: STL 2026-11-21 12:40:00 → DEN 2026-11-21 16:30:00; 1 stop(s) via MCI; 290 minutes. Local airport times.
  • WN4372: STL 2026-11-21 12:40:00 → MCI 2026-11-21 13:45:00; layover at MCI: 115 minutes.
  • WN1758: MCI 2026-11-21 15:40:00 → DEN 2026-11-21 16:30:00.
• Southwest Airlines WN2170: DEN 2026-12-03 13:30:00 → STL 2026-12-03 16:25:00; nonstop; 115 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $290.00

• Southwest Airlines WN3286 / WN1766: STL 2026-11-21 08:20:00 → DEN 2026-11-21 12:20:00; 1 stop(s) via OMA; 300 minutes. Local airport times.
  • WN3286: STL 2026-11-21 08:20:00 → OMA 2026-11-21 09:35:00; layover at OMA: 120 minutes.
  • WN1766: OMA 2026-11-21 11:35:00 → DEN 2026-11-21 12:20:00.
• Southwest Airlines WN2170: DEN 2026-12-03 13:30:00 → STL 2026-12-03 16:25:00; nonstop; 115 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $310.00

• United Airlines UA4439 / UA2495: STL 2026-11-21 05:25:00 → DEN 2026-11-21 10:26:00; 1 stop(s) via ORD; 361 minutes. Local airport times.
  • UA4439: STL 2026-11-21 05:25:00 → ORD 2026-11-21 06:58:00; layover at ORD: 102 minutes.
  • UA2495: ORD 2026-11-21 08:40:00 → DEN 2026-11-21 10:26:00.
• United Airlines UA652: DEN 2026-12-03 09:50:00 → STL 2026-12-03 12:53:00; nonstop; 123 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
• Nov 20, 2026 · Return options
• Nov 22, 2026 · Return options
• Hotels in Denver with Axel

For AI assistants

• This page: Saint Louis (STL) to Denver (DEN) · Nov 21, 2026 · return Dec 3, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Denver for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
• Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
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