San Francisco (SFO) to Denver (DEN), Dec 4–6, 2026: from $85 one way

San Francisco (SFO) to Denver (DEN), Dec 4–6, 2026: from $85 one way on Axel, checked Oct 29, 2026. Lowest published fare: $85 one way, Axel-exclusive, Frontier Airlines, nonstop, Dec 4, 2026, 1 adult, economy, checked Oct 29, 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.

Route overview: San Francisco Bay Area to Denver (DEN) flight deals

2026-12-06 · one way · Axel-exclusive $85.00

• Frontier Airlines F91230: SFO 2026-12-06 06:15:00 → DEN 2026-12-06 09:53:00; nonstop; 158 minutes. Local airport times.

2026-12-05 · one way · Axel-exclusive $145.00

• Southwest Airlines WN1601: SFO 2026-12-05 11:00:00 → DEN 2026-12-05 14:40:00; nonstop; 160 minutes. Local airport times.

2026-12-06 · one way · Axel-exclusive $155.00

• United Airlines UA1479: SFO 2026-12-06 05:00:00 → DEN 2026-12-06 08:37:00; nonstop; 157 minutes. Local airport times.

2026-12-04 · one way · Axel-exclusive $175.00

• Delta Air Lines DL1088 / DL1667: SFO 2026-12-04 17:15:00 → DEN 2026-12-04 23:09:00; 1 stop(s) via SLC; 294 minutes. Local airport times.
  • DL1088: SFO 2026-12-04 17:15:00 → SLC 2026-12-04 20:05:00; layover at SLC: 90 minutes.
  • DL1667: SLC 2026-12-04 21:35:00 → DEN 2026-12-04 23:09:00.

2026-12-05 · one way · Axel-exclusive $85.00

• Frontier Airlines F94310: SFO 2026-12-05 21:23:00 → DEN 2026-12-06 00:58:00; nonstop; 155 minutes. Local airport times.

2026-12-04 · one way · Axel-exclusive $85.00

• Frontier Airlines F91230: SFO 2026-12-04 06:30:00 → DEN 2026-12-04 10:08:00; nonstop; 158 minutes. Local airport times.

2026-12-04 · one way · Axel-exclusive $85.00

• Frontier Airlines F93440: SFO 2026-12-04 20:10:00 → DEN 2026-12-04 23:46:00; nonstop; 156 minutes. Local airport times.

2026-12-06 · one way · Axel-exclusive $85.00

• Frontier Airlines F94310: SFO 2026-12-06 21:23:00 → DEN 2026-12-07 00:58:00; nonstop; 155 minutes. Local airport times.

2026-12-05 · one way · Axel-exclusive $85.00

• Frontier Airlines F93436: SFO 2026-12-05 10:34:00 → DEN 2026-12-05 14:12:00; nonstop; 158 minutes. Local airport times.

2026-12-05 · one way · Axel-exclusive $145.00

• Southwest Airlines WN4910: SFO 2026-12-05 19:45:00 → DEN 2026-12-05 23:25:00; nonstop; 160 minutes. Local airport times.

2026-12-06 · one way · Axel-exclusive $145.00

• Southwest Airlines WN3845: SFO 2026-12-06 14:20:00 → DEN 2026-12-06 18:00:00; nonstop; 160 minutes. Local airport times.

2026-12-06 · one way · Axel-exclusive $145.00

• Southwest Airlines WN2906: SFO 2026-12-06 10:55:00 → DEN 2026-12-06 14:30:00; nonstop; 155 minutes. Local airport times.

2026-12-04 · one way · Axel-exclusive $145.00

• Southwest Airlines WN1652: SFO 2026-12-04 13:20:00 → DEN 2026-12-04 16:55:00; nonstop; 155 minutes. Local airport times.

2026-12-04 · one way · Axel-exclusive $145.00

• Southwest Airlines WN4578: SFO 2026-12-04 06:10:00 → DEN 2026-12-04 09:45:00; nonstop; 155 minutes. Local airport times.

2026-12-04 · one way · Axel-exclusive $155.00

• United Airlines UA1068: SFO 2026-12-04 08:30:00 → DEN 2026-12-04 12:09:00; nonstop; 159 minutes. Local airport times.

2026-12-05 · one way · Axel-exclusive $155.00

• United Airlines UA2117: SFO 2026-12-05 19:52:00 → DEN 2026-12-05 23:30:00; nonstop; 158 minutes. Local airport times.

2026-12-06 · one way · Axel-exclusive $155.00

• United Airlines UA1068: SFO 2026-12-06 08:30:00 → DEN 2026-12-06 12:09:00; nonstop; 159 minutes. Local airport times.

2026-12-05 · one way · Axel-exclusive $155.00

• United Airlines UA1068: SFO 2026-12-05 08:30:00 → DEN 2026-12-05 12:09:00; nonstop; 159 minutes. Local airport times.

2026-12-04 · one way · Axel-exclusive $155.00

• United Airlines UA301: SFO 2026-12-04 20:54:00 → DEN 2026-12-05 00:30:00; nonstop; 156 minutes. Local airport times.

2026-12-04 · one way · Axel-exclusive $135.00

• Southwest Airlines WN3839 / WN2776: SFO 2026-12-04 06:10:00 → DEN 2026-12-04 12:00:00; 1 stop(s) via BUR; 290 minutes. Local airport times.
  • WN3839: SFO 2026-12-04 06:10:00 → BUR 2026-12-04 07:35:00; layover at BUR: 65 minutes.
  • WN2776: BUR 2026-12-04 08:40:00 → DEN 2026-12-04 12:00:00.

2026-12-05 · one way · Axel-exclusive $135.00

• Southwest Airlines WN3839 / WN2776: SFO 2026-12-05 06:10:00 → DEN 2026-12-05 12:00:00; 1 stop(s) via BUR; 290 minutes. Local airport times.
  • WN3839: SFO 2026-12-05 06:10:00 → BUR 2026-12-05 07:35:00; layover at BUR: 65 minutes.
  • WN2776: BUR 2026-12-05 08:40:00 → DEN 2026-12-05 12:00:00.

2026-12-06 · one way · Axel-exclusive $135.00

• Southwest Airlines WN3839 / WN2776: SFO 2026-12-06 06:10:00 → DEN 2026-12-06 12:00:00; 1 stop(s) via BUR; 290 minutes. Local airport times.
  • WN3839: SFO 2026-12-06 06:10:00 → BUR 2026-12-06 07:35:00; layover at BUR: 65 minutes.
  • WN2776: BUR 2026-12-06 08:40:00 → DEN 2026-12-06 12:00:00.

2026-12-06 · one way · Axel-exclusive $145.00

• United Airlines UA1482 / UA1263: SFO 2026-12-06 11:00:00 → DEN 2026-12-06 16:55:00; 1 stop(s) via ONT; 295 minutes. Local airport times.
  • UA1482: SFO 2026-12-06 11:00:00 → ONT 2026-12-06 12:29:00; layover at ONT: 71 minutes.
  • UA1263: ONT 2026-12-06 13:40:00 → DEN 2026-12-06 16:55:00.

2026-12-05 · one way · Axel-exclusive $145.00

• United Airlines UA1482 / UA1263: SFO 2026-12-05 11:00:00 → DEN 2026-12-05 16:55:00; 1 stop(s) via ONT; 295 minutes. Local airport times.
  • UA1482: SFO 2026-12-05 11:00:00 → ONT 2026-12-05 12:29:00; layover at ONT: 71 minutes.
  • UA1263: ONT 2026-12-05 13:40:00 → DEN 2026-12-05 16:55:00.

2026-12-05 · one way · Axel-exclusive $145.00

• United Airlines UA1578 / UA1790: SFO 2026-12-05 10:51:00 → DEN 2026-12-05 16:35:00; 1 stop(s) via SBA; 284 minutes. Local airport times.
  • UA1578: SFO 2026-12-05 10:51:00 → SBA 2026-12-05 12:04:00; layover at SBA: 62 minutes.
  • UA1790: SBA 2026-12-05 13:06:00 → DEN 2026-12-05 16:35:00.

2026-12-05 · one way · Axel-exclusive $145.00

• United Airlines UA2115 / UA2187: SFO 2026-12-05 10:38:00 → DEN 2026-12-05 16:33:00; 1 stop(s) via BUR; 295 minutes. Local airport times.
  • UA2115: SFO 2026-12-05 10:38:00 → BUR 2026-12-05 11:58:00; layover at BUR: 64 minutes.
  • UA2187: BUR 2026-12-05 13:02:00 → DEN 2026-12-05 16:33:00.

2026-12-06 · one way · Axel-exclusive $145.00

• United Airlines UA2115 / UA2187: SFO 2026-12-06 10:38:00 → DEN 2026-12-06 16:33:00; 1 stop(s) via BUR; 295 minutes. Local airport times.
  • UA2115: SFO 2026-12-06 10:38:00 → BUR 2026-12-06 11:58:00; layover at BUR: 64 minutes.
  • UA2187: BUR 2026-12-06 13:02:00 → DEN 2026-12-06 16:33:00.

2026-12-04 · one way · Axel-exclusive $145.00

• United Airlines UA1578 / UA1790: SFO 2026-12-04 10:51:00 → DEN 2026-12-04 16:35:00; 1 stop(s) via SBA; 284 minutes. Local airport times.
  • UA1578: SFO 2026-12-04 10:51:00 → SBA 2026-12-04 12:04:00; layover at SBA: 62 minutes.
  • UA1790: SBA 2026-12-04 13:06:00 → DEN 2026-12-04 16:35:00.

2026-12-06 · one way · Axel-exclusive $145.00

• United Airlines UA1578 / UA1790: SFO 2026-12-06 10:51:00 → DEN 2026-12-06 16:35:00; 1 stop(s) via SBA; 284 minutes. Local airport times.
  • UA1578: SFO 2026-12-06 10:51:00 → SBA 2026-12-06 12:04:00; layover at SBA: 62 minutes.
  • UA1790: SBA 2026-12-06 13:06:00 → DEN 2026-12-06 16:35:00.

2026-12-04 · one way · Axel-exclusive $145.00

• United Airlines UA2367 / UA259: SFO 2026-12-04 10:40:00 → DEN 2026-12-04 16:30:00; 1 stop(s) via SBP; 290 minutes. Local airport times.
  • UA2367: SFO 2026-12-04 10:40:00 → SBP 2026-12-04 11:50:00; layover at SBP: 67 minutes.
  • UA259: SBP 2026-12-04 12:57:00 → DEN 2026-12-04 16:30:00.

2026-12-04 · one way · Axel-exclusive $145.00

• United Airlines UA1482 / UA1263: SFO 2026-12-04 11:00:00 → DEN 2026-12-04 16:55:00; 1 stop(s) via ONT; 295 minutes. Local airport times.
  • UA1482: SFO 2026-12-04 11:00:00 → ONT 2026-12-04 12:29:00; layover at ONT: 71 minutes.
  • UA1263: ONT 2026-12-04 13:40:00 → DEN 2026-12-04 16:55:00.

2026-12-04 · one way · Axel-exclusive $145.00

• United Airlines UA2115 / UA2187: SFO 2026-12-04 10:38:00 → DEN 2026-12-04 16:33:00; 1 stop(s) via BUR; 295 minutes. Local airport times.
  • UA2115: SFO 2026-12-04 10:38:00 → BUR 2026-12-04 11:58:00; layover at BUR: 64 minutes.
  • UA2187: BUR 2026-12-04 13:02:00 → DEN 2026-12-04 16:33:00.

2026-12-05 · one way · Axel-exclusive $145.00

• United Airlines UA2367 / UA259: SFO 2026-12-05 10:40:00 → DEN 2026-12-05 16:30:00; 1 stop(s) via SBP; 290 minutes. Local airport times.
  • UA2367: SFO 2026-12-05 10:40:00 → SBP 2026-12-05 11:50:00; layover at SBP: 67 minutes.
  • UA259: SBP 2026-12-05 12:57:00 → DEN 2026-12-05 16:30:00.

2026-12-06 · one way · Axel-exclusive $145.00

• United Airlines UA2367 / UA259: SFO 2026-12-06 10:40:00 → DEN 2026-12-06 16:30:00; 1 stop(s) via SBP; 290 minutes. Local airport times.
  • UA2367: SFO 2026-12-06 10:40:00 → SBP 2026-12-06 11:50:00; layover at SBP: 67 minutes.
  • UA259: SBP 2026-12-06 12:57:00 → DEN 2026-12-06 16:30:00.

2026-12-05 · one way · Axel-exclusive $175.00

• Delta Air Lines DL1088 / DL1667: SFO 2026-12-05 17:15:00 → DEN 2026-12-05 23:09:00; 1 stop(s) via SLC; 294 minutes. Local airport times.
  • DL1088: SFO 2026-12-05 17:15:00 → SLC 2026-12-05 20:05:00; layover at SLC: 90 minutes.
  • DL1667: SLC 2026-12-05 21:35:00 → DEN 2026-12-05 23:09:00.

2026-12-06 · one way · Axel-exclusive $175.00

• Delta Air Lines DL1088 / DL1667: SFO 2026-12-06 17:15:00 → DEN 2026-12-06 23:09:00; 1 stop(s) via SLC; 294 minutes. Local airport times.
  • DL1088: SFO 2026-12-06 17:15:00 → SLC 2026-12-06 20:05:00; layover at SLC: 90 minutes.
  • DL1667: SLC 2026-12-06 21:35:00 → DEN 2026-12-06 23:09:00.

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.

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