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Saint Louis → San Francisco

Aug 21, 2027 · return Aug 28, 2027

STL → SFO1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Sat, Aug 21 – Sat, Aug 28

United Airlines
8:00 amSTL
4h 36m
Nonstop
10:36 amSFO
United Airlines
12:22 pmSFO
3h 55m
Nonstop
6:17 pmSTL

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

United Airlines
7:05 pmSTL
4h 36m
Nonstop
9:41 pmSFO
United Airlines
12:22 pmSFO
3h 55m
Nonstop
6:17 pmSTL

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Aug 21 – Sat, Aug 28

Frontier Airlines
2:02 pmSTL
6h 24m
LAS · 1h 4m
6:26 pmSFO
Frontier Airlines
11:23 amSFO
5h 51m
DEN · 1h 2m
7:14 pmSTL

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Southwest Airlines
7:55 amSTL
6h 55m
SAN · 1h 20m
12:50 pmSFO
Southwest Airlines
10:45 pmSFO
6h 55m
BNA · 1h 20m
7:40 am+1STL

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

American Airlines
2:23 pmSTL
6h 53m
PHX · 1h 14m
7:16 pmSFO
American Airlines
3:07 pmSFO
6h 29m
LAX · 1h 7m
11:36 pmSTL

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Frontier Airlines
7:58 pmSTL
6h 50m
DEN · 1h 28m
12:48 am+1SFO
Frontier Airlines
11:23 amSFO
5h 51m
DEN · 1h 2m
7:14 pmSTL

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Southwest Airlines
6:40 pmSTL
7h 15m
PHX · 1h 45m
11:55 pmSFO
Southwest Airlines
10:45 pmSFO
6h 55m
BNA · 1h 20m
7:40 am+1STL

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Southwest Airlines
8:00 amSTL
4h 20m
Nonstop
10:20 amSFO
Southwest Airlines
10:45 pmSFO
6h 55m
BNA · 1h 20m
7:40 am+1STL

Round-trip total · 1 adult · Taxes included

Make this trip yours

STL ⇄ SFO

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 5, 2026 → Nov 8, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Dec 5, 2026 → Dec 12, 2026Dec 17, 2026 → Dec 20, 2026Dec 26, 2026 → Jan 2, 2027Jan 5, 2027 · One wayJan 16, 2027 → Jan 23, 2027Feb 5, 2027 → Feb 8, 2027Apr 3, 2027 → Apr 10, 2027Jun 26, 2027 → Jul 3, 2027Sep 17, 2027 → Sep 20, 2027
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)
2027-08-21 → 2027-08-28United AirlinesUA1257 / UA1588$460.002026-10-29T01:29:02Z
2027-08-21 → 2027-08-28Frontier AirlinesF93107 + F94157 / F93436 + F93302$250.002026-10-29T01:29:02Z
2027-08-21 → 2027-08-28Southwest AirlinesWN4452 + WN4955 / WN1262 + WN738$375.002026-10-29T01:29:02Z
2027-08-21 → 2027-08-28American AirlinesAA2303 + AA2234 / AA6214 + AA6209$415.002026-10-29T01:29:02Z
2027-08-21 → 2027-08-28United AirlinesUA214 / UA1588$460.002026-10-29T01:29:02Z
2027-08-21 → 2027-08-28Frontier AirlinesF94567 + F93439 / F93436 + F93302$250.002026-10-29T01:29:02Z
2027-08-21 → 2027-08-28Southwest AirlinesWN2467 + WN1448 / WN1262 + WN738$375.002026-10-29T01:29:02Z
2027-08-21 → 2027-08-28Southwest AirlinesWN4751 / WN1262 + WN738$397.502026-10-29T01:29:02Z

2027-08-21 → 2027-08-28 · $460.00

  • United Airlines UA1257: STL 2027-08-21 08:00:00 → SFO 2027-08-21 10:36:00; nonstop; 276 minutes. Local airport times.
  • United Airlines UA1588: SFO 2027-08-28 12:22:00 → STL 2027-08-28 18:17:00; nonstop; 235 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $250.00

  • Frontier Airlines F93107 / F94157: STL 2027-08-21 14:02:00 → SFO 2027-08-21 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-08-21 14:02:00 → LAS 2027-08-21 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-08-21 16:42:00 → SFO 2027-08-21 18:26:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-08-28 11:23:00 → STL 2027-08-28 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-08-28 11:23:00 → DEN 2027-08-28 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-08-28 16:09:00 → STL 2027-08-28 19:14:00.

2027-08-21 → 2027-08-28 · $375.00

  • Southwest Airlines WN4452 / WN4955: STL 2027-08-21 07:55:00 → SFO 2027-08-21 12:50:00; 1 stop(s) via SAN; 415 minutes. Local airport times.
    • WN4452: STL 2027-08-21 07:55:00 → SAN 2027-08-21 09:50:00; layover at SAN: 80 minutes.
    • WN4955: SAN 2027-08-21 11:10:00 → SFO 2027-08-21 12:50:00.
  • Southwest Airlines WN1262 / WN738: SFO 2027-08-28 22:45:00 → STL 2027-08-29 07:40:00; 1 stop(s) via BNA; 415 minutes. Local airport times.
    • WN1262: SFO 2027-08-28 22:45:00 → BNA 2027-08-29 05:05:00; layover at BNA: 80 minutes.
    • WN738: BNA 2027-08-29 06:25:00 → STL 2027-08-29 07:40:00.

2027-08-21 → 2027-08-28 · $415.00

  • American Airlines AA2303 / AA2234: STL 2027-08-21 14:23:00 → SFO 2027-08-21 19:16:00; 1 stop(s) via PHX; 413 minutes. Local airport times.
    • AA2303: STL 2027-08-21 14:23:00 → PHX 2027-08-21 15:51:00; layover at PHX: 74 minutes.
    • AA2234: PHX 2027-08-21 17:05:00 → SFO 2027-08-21 19:16:00.
  • American Airlines AA6214 / AA6209: SFO 2027-08-28 15:07:00 → STL 2027-08-28 23:36:00; 1 stop(s) via LAX; 389 minutes. Local airport times.
    • AA6214: SFO 2027-08-28 15:07:00 → LAX 2027-08-28 16:43:00; layover at LAX: 67 minutes.
    • AA6209: LAX 2027-08-28 17:50:00 → STL 2027-08-28 23:36:00.

2027-08-21 → 2027-08-28 · $460.00

  • United Airlines UA214: STL 2027-08-21 19:05:00 → SFO 2027-08-21 21:41:00; nonstop; 276 minutes. Local airport times.
  • United Airlines UA1588: SFO 2027-08-28 12:22:00 → STL 2027-08-28 18:17:00; nonstop; 235 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-08-21 19:58:00 → SFO 2027-08-22 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-08-21 19:58:00 → DEN 2027-08-21 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-08-21 22:57:00 → SFO 2027-08-22 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-08-28 11:23:00 → STL 2027-08-28 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-08-28 11:23:00 → DEN 2027-08-28 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-08-28 16:09:00 → STL 2027-08-28 19:14:00.

2027-08-21 → 2027-08-28 · $375.00

  • Southwest Airlines WN2467 / WN1448: STL 2027-08-21 18:40:00 → SFO 2027-08-21 23:55:00; 1 stop(s) via PHX; 435 minutes. Local airport times.
    • WN2467: STL 2027-08-21 18:40:00 → PHX 2027-08-21 20:00:00; layover at PHX: 105 minutes.
    • WN1448: PHX 2027-08-21 21:45:00 → SFO 2027-08-21 23:55:00.
  • Southwest Airlines WN1262 / WN738: SFO 2027-08-28 22:45:00 → STL 2027-08-29 07:40:00; 1 stop(s) via BNA; 415 minutes. Local airport times.
    • WN1262: SFO 2027-08-28 22:45:00 → BNA 2027-08-29 05:05:00; layover at BNA: 80 minutes.
    • WN738: BNA 2027-08-29 06:25:00 → STL 2027-08-29 07:40:00.

2027-08-21 → 2027-08-28 · $397.50

  • Southwest Airlines WN4751: STL 2027-08-21 08:00:00 → SFO 2027-08-21 10:20:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN1262 / WN738: SFO 2027-08-28 22:45:00 → STL 2027-08-29 07:40:00; 1 stop(s) via BNA; 415 minutes. Local airport times.
    • WN1262: SFO 2027-08-28 22:45:00 → BNA 2027-08-29 05:05:00; layover at BNA: 80 minutes.
    • WN738: BNA 2027-08-29 06:25:00 → STL 2027-08-29 07:40:00.

More dates for this route