Saint Louis (STL) to San Francisco (SFO) · Dec 19, 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 San Francisco (SFO) flight deals

2026-12-19 · one way · Axel-exclusive $249.75

• Southwest Airlines WN4751: STL 2026-12-19 08:00:00 → SFO 2026-12-19 10:20:00; nonstop; 260 minutes. Local airport times.

2026-12-19 · one way · Axel-exclusive $276.75

• United Airlines UA5943: STL 2026-12-19 17:07:00 → SFO 2026-12-19 20:06:00; nonstop; 299 minutes. Local airport times.

2026-12-19 · one way · Axel-exclusive $141.75

• Frontier Airlines F94567 / F93439: STL 2026-12-19 19:58:00 → SFO 2026-12-20 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
  • F94567: STL 2026-12-19 19:58:00 → DEN 2026-12-19 21:29:00; layover at DEN: 88 minutes.
  • F93439: DEN 2026-12-19 22:57:00 → SFO 2026-12-20 00:48:00.

2026-12-19 · one way · Axel-exclusive $249.75

• American Airlines AA2303 / AA2234: STL 2026-12-19 14:23:00 → SFO 2026-12-19 19:16:00; 1 stop(s) via PHX; 413 minutes. Local airport times.
  • AA2303: STL 2026-12-19 14:23:00 → PHX 2026-12-19 16:51:00; layover at PHX: 74 minutes.
  • AA2234: PHX 2026-12-19 18:05:00 → SFO 2026-12-19 19:16:00.

2026-12-19 · one way · Axel-exclusive $270.00

• Delta Air Lines DL1597 / DL2078: STL 2026-12-19 06:03:00 → SFO 2026-12-19 11:07:00; 1 stop(s) via MSP; 424 minutes. Local airport times.
  • DL1597: STL 2026-12-19 06:03:00 → MSP 2026-12-19 07:43:00; layover at MSP: 62 minutes.
  • DL2078: MSP 2026-12-19 08:45:00 → SFO 2026-12-19 11:07:00.

2026-12-19 · one way · Axel-exclusive $276.75

• United Airlines UA214: STL 2026-12-19 19:05:00 → SFO 2026-12-19 21:41:00; nonstop; 276 minutes. Local airport times.

2026-12-19 · one way · Axel-exclusive $141.75

• Frontier Airlines F93107 / F94157: STL 2026-12-19 14:02:00 → SFO 2026-12-19 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
  • F93107: STL 2026-12-19 14:02:00 → LAS 2026-12-19 15:38:00; layover at LAS: 64 minutes.
  • F94157: LAS 2026-12-19 16:42:00 → SFO 2026-12-19 18:26:00.

2026-12-19 · one way · Axel-exclusive $222.75

• Southwest Airlines WN4452 / WN4955: STL 2026-12-19 07:55:00 → SFO 2026-12-19 12:50:00; 1 stop(s) via SAN; 415 minutes. Local airport times.
  • WN4452: STL 2026-12-19 07:55:00 → SAN 2026-12-19 09:50:00; layover at SAN: 80 minutes.
  • WN4955: SAN 2026-12-19 11:10:00 → SFO 2026-12-19 12:50:00.

2026-12-19 · one way · Axel-exclusive $222.75

• Southwest Airlines WN2467 / WN1448: STL 2026-12-19 18:40:00 → SFO 2026-12-19 23:55:00; 1 stop(s) via PHX; 435 minutes. Local airport times.
  • WN2467: STL 2026-12-19 18:40:00 → PHX 2026-12-19 21:00:00; layover at PHX: 105 minutes.
  • WN1448: PHX 2026-12-19 22:45:00 → SFO 2026-12-19 23:55:00.

Explore this route

• All dates for this route
• Dec 18, 2026 · Return options
• Dec 20, 2026 · Return options
• Hotels in San Francisco with Axel

For AI assistants

• This page: Saint Louis (STL) to San Francisco (SFO) · Dec 19, 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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