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San Francisco → Saint Louis

Dec 21, 2026 · one way

SFO → STL1 adulteconomyOne way

9 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 · One way

Southwest Airlines
11:15 amSFO
3h 55m
Nonstop
5:10 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

United Airlines
11:00 pmSFO
4h 6m
Nonstop
5:06 am+1STL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

United Airlines
12:20 pmSFO
3h 51m
Nonstop
6:11 pmSTL

One-way total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 · One way

Frontier Airlines
11:23 amSFO
5h 51m
DEN · 1h 2m
7:14 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

American Airlines
3:07 pmSFO
6h 29m
LAX · 1h 7m
11:36 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Delta Air Lines
9:56 amSFO
5h 45m
SLC · 1h 5m
5:41 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
5:05 amSFO
5h 55m
PHX · 1h 10m
1:00 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
6:00 amSFO
5h 30m
DEN · 1h
1:30 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
10:45 pmSFO
6h 55m
BNA · 1h 20m
7:40 am+1STL

One-way total · 1 adult · Taxes included

Make this trip yours

SFO ⇄ STL

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 · one waySouthwest AirlinesWN2989$234.002026-10-29T01:19:49Z
2026-12-21 · one wayUnited AirlinesUA5750$273.002026-10-29T01:19:49Z
2026-12-21 · one wayFrontier AirlinesF93436 + F93302$130.002026-10-29T01:19:49Z
2026-12-21 · one wayAmerican AirlinesAA6214 + AA6209$227.502026-10-29T01:19:49Z
2026-12-21 · one wayDelta Air LinesDL920 + DL2373$240.502026-10-29T01:19:49Z
2026-12-21 · one wayUnited AirlinesUA1585$273.002026-10-29T01:19:49Z
2026-12-21 · one waySouthwest AirlinesWN3850 + WN709$214.502026-10-29T01:19:49Z
2026-12-21 · one waySouthwest AirlinesWN4578 + WN1807$214.502026-10-29T01:19:49Z
2026-12-21 · one waySouthwest AirlinesWN1262 + WN738$214.502026-10-29T01:19:49Z

2026-12-21 · one way · $234.00

  • Southwest Airlines WN2989: SFO 2026-12-21 11:15:00 → STL 2026-12-21 17:10:00; nonstop; 235 minutes. Local airport times.

2026-12-21 · one way · $273.00

  • United Airlines UA5750: SFO 2026-12-21 23:00:00 → STL 2026-12-22 05:06:00; nonstop; 246 minutes. Local airport times.

2026-12-21 · one way · $130.00

  • Frontier Airlines F93436 / F93302: SFO 2026-12-21 11:23:00 → STL 2026-12-21 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-21 11:23:00 → DEN 2026-12-21 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-21 16:09:00 → STL 2026-12-21 19:14:00.

2026-12-21 · one way · $227.50

  • American Airlines AA6214 / AA6209: SFO 2026-12-21 15:07:00 → STL 2026-12-21 23:36:00; 1 stop(s) via LAX; 389 minutes. Local airport times.
    • AA6214: SFO 2026-12-21 15:07:00 → LAX 2026-12-21 16:43:00; layover at LAX: 67 minutes.
    • AA6209: LAX 2026-12-21 17:50:00 → STL 2026-12-21 23:36:00.

2026-12-21 · one way · $240.50

  • Delta Air Lines DL920 / DL2373: SFO 2026-12-21 09:56:00 → STL 2026-12-21 17:41:00; 1 stop(s) via SLC; 345 minutes. Local airport times.
    • DL920: SFO 2026-12-21 09:56:00 → SLC 2026-12-21 12:50:00; layover at SLC: 65 minutes.
    • DL2373: SLC 2026-12-21 13:55:00 → STL 2026-12-21 17:41:00.

2026-12-21 · one way · $273.00

  • United Airlines UA1585: SFO 2026-12-21 12:20:00 → STL 2026-12-21 18:11:00; nonstop; 231 minutes. Local airport times.

2026-12-21 · one way · $214.50

  • Southwest Airlines WN3850 / WN709: SFO 2026-12-21 05:05:00 → STL 2026-12-21 13:00:00; 1 stop(s) via PHX; 355 minutes. Local airport times.
    • WN3850: SFO 2026-12-21 05:05:00 → PHX 2026-12-21 08:00:00; layover at PHX: 70 minutes.
    • WN709: PHX 2026-12-21 09:10:00 → STL 2026-12-21 13:00:00.

2026-12-21 · one way · $214.50

  • Southwest Airlines WN4578 / WN1807: SFO 2026-12-21 06:00:00 → STL 2026-12-21 13:30:00; 1 stop(s) via DEN; 330 minutes. Local airport times.
    • WN4578: SFO 2026-12-21 06:00:00 → DEN 2026-12-21 09:30:00; layover at DEN: 60 minutes.
    • WN1807: DEN 2026-12-21 10:30:00 → STL 2026-12-21 13:30:00.

2026-12-21 · one way · $214.50

  • Southwest Airlines WN1262 / WN738: SFO 2026-12-21 22:45:00 → STL 2026-12-22 07:40:00; 1 stop(s) via BNA; 415 minutes. Local airport times.
    • WN1262: SFO 2026-12-21 22:45:00 → BNA 2026-12-22 05:05:00; layover at BNA: 80 minutes.
    • WN738: BNA 2026-12-22 06:25:00 → STL 2026-12-22 07:40:00.

More dates for this route