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Route overview: Saint Louis to San Francisco (SFO) flight deals

Saint Louis → San Francisco

Jun 20, 2027 · choose your return date

STL → SFO1 adulteconomyOne way and round trips

30 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

June 2027

Jun 20, 2027 · One wayFrontier AirlinesUp to 1 stop each way$135.00 Jun 20, 2027 · One waySouthwest AirlinesNonstop$225.00 Jun 20, 2027 – Jun 21, 2027 · 1 nightFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 21, 2027 · 1 nightSouthwest AirlinesNonstop$420.00 Jun 20, 2027 – Jun 22, 2027 · 2 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 22, 2027 · 2 nightsSouthwest AirlinesNonstop$420.00 Jun 20, 2027 – Jun 23, 2027 · 3 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 23, 2027 · 3 nightsUnited AirlinesNonstop$460.00 Jun 20, 2027 – Jun 24, 2027 · 4 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 24, 2027 · 4 nightsSouthwest AirlinesNonstop$420.00 Jun 20, 2027 – Jun 25, 2027 · 5 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 25, 2027 · 5 nightsSouthwest AirlinesNonstop$420.00 Jun 20, 2027 – Jun 26, 2027 · 6 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 26, 2027 · 6 nightsUnited AirlinesNonstop$460.00 Jun 20, 2027 – Jun 27, 2027 · 7 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 27, 2027 · 7 nightsUnited AirlinesNonstop$460.00 Jun 20, 2027 – Jun 28, 2027 · 8 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 28, 2027 · 8 nightsSouthwest AirlinesNonstop$420.00 Jun 20, 2027 – Jun 29, 2027 · 9 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 29, 2027 · 9 nightsSouthwest AirlinesNonstop$420.00 Jun 20, 2027 – Jun 30, 2027 · 10 nightsFrontier AirlinesUp to 1 stop each way$250.00 Jun 20, 2027 – Jun 30, 2027 · 10 nightsUnited AirlinesNonstop$460.00 Jun 20, 2027 – Jul 1, 2027 · 11 nightsFrontier AirlinesUp to 1 stop each way$268.75 Jun 20, 2027 – Jul 1, 2027 · 11 nightsSouthwest AirlinesNonstop$451.50 Jun 20, 2027 – Jul 2, 2027 · 12 nightsFrontier AirlinesUp to 1 stop each way$268.75 Jun 20, 2027 – Jul 2, 2027 · 12 nightsSouthwest AirlinesNonstop$451.50 Jun 20, 2027 – Jul 3, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$268.75 Jun 20, 2027 – Jul 3, 2027 · 13 nightsUnited AirlinesNonstop$494.50 Jun 20, 2027 – Jul 4, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$268.75 Jun 20, 2027 – Jul 4, 2027 · 14 nightsUnited AirlinesNonstop$494.50

Flights for your trip

  1. Sun, Jun 20 · One way

    Frontier Airlines
    7:58 pmSTL
    6h 50m
    DEN · 1h 28m
    12:48 am+1SFO

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Sun, Jun 20 · One way

    Southwest Airlines
    7:55 amSTL
    4h 20m
    Nonstop
    10:15 amSFO

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Sun, Jun 20 – Mon, Jun 21

    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

    Availability is checked when you select these flights.

  4. Sun, Jun 20 – Mon, Jun 21

    Southwest Airlines
    7:55 amSTL
    4h 20m
    Nonstop
    10:15 amSFO
    Southwest Airlines
    11:15 amSFO
    3h 55m
    Nonstop
    5:10 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Sun, Jun 20 – Tue, Jun 22

    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

    Availability is checked when you select these flights.

  6. Sun, Jun 20 – Tue, Jun 22

    Southwest Airlines
    7:55 amSTL
    4h 20m
    Nonstop
    10:15 amSFO
    Southwest Airlines
    11:15 amSFO
    3h 55m
    Nonstop
    5:10 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Sun, Jun 20 – Wed, Jun 23

    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

    Availability is checked when you select these flights.

  8. Sun, Jun 20 – Wed, Jun 23

    United Airlines
    6:11 amSTL
    5h 19m
    Nonstop
    9:30 amSFO
    United Airlines
    10:13 amSFO
    4h 13m
    Nonstop
    4:26 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Sun, Jun 20 – Thu, Jun 24

    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

    Availability is checked when you select these flights.

  10. Sun, Jun 20 – Thu, Jun 24

    Southwest Airlines
    7:55 amSTL
    4h 20m
    Nonstop
    10:15 amSFO
    Southwest Airlines
    11:15 amSFO
    3h 55m
    Nonstop
    5:10 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Sun, Jun 20 – Sat, Jun 26

    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

    Availability is checked when you select these flights.

  12. Sun, Jun 20 – Sat, Jun 26

    United Airlines
    6:11 amSTL
    5h 19m
    Nonstop
    9:30 amSFO
    United Airlines
    12:22 pmSFO
    3h 55m
    Nonstop
    6:17 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Sun, Jun 20 – Sun, Jun 27

    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

    Availability is checked when you select these flights.

  14. Sun, Jun 20 – Sun, Jun 27

    United Airlines
    6:11 amSTL
    5h 19m
    Nonstop
    9:30 amSFO
    United Airlines
    12:22 pmSFO
    3h 55m
    Nonstop
    6:17 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Sun, Jun 20 – Mon, Jun 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

    Availability is checked when you select these flights.

  16. Sun, Jun 20 – Mon, Jun 28

    Southwest Airlines
    7:55 amSTL
    4h 20m
    Nonstop
    10:15 amSFO
    Southwest Airlines
    11:15 amSFO
    3h 55m
    Nonstop
    5:10 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Sun, Jun 20 – Wed, Jun 30

    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

    Availability is checked when you select these flights.

  18. Sun, Jun 20 – Wed, Jun 30

    United Airlines
    6:11 amSTL
    5h 19m
    Nonstop
    9:30 amSFO
    United Airlines
    10:13 amSFO
    4h 13m
    Nonstop
    4:26 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Sun, Jun 20 – Thu, Jul 1

    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

    Availability is checked when you select these flights.

  20. Sun, Jun 20 – Thu, Jul 1

    Southwest Airlines
    7:55 amSTL
    4h 20m
    Nonstop
    10:15 amSFO
    Southwest Airlines
    11:15 amSFO
    3h 55m
    Nonstop
    5:10 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Sun, Jun 20 – Fri, Jul 2

    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

    Availability is checked when you select these flights.

  22. Sun, Jun 20 – Fri, Jul 2

    Southwest Airlines
    7:55 amSTL
    4h 20m
    Nonstop
    10:15 amSFO
    Southwest Airlines
    1:05 pmSFO
    3h 50m
    Nonstop
    6:55 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Sun, Jun 20 – Sun, Jul 4

    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

    Availability is checked when you select these flights.

  24. Sun, Jun 20 – Sun, Jul 4

    United Airlines
    6:11 amSTL
    5h 19m
    Nonstop
    9:30 amSFO
    United Airlines
    12:22 pmSFO
    3h 55m
    Nonstop
    6:17 pmSTL

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

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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Explore this route

All dates for this routeJun 19, 2027 · Return optionsJun 21, 2027 · Return optionsHotels in San Francisco with Axel
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-06-20 · one waySouthwest AirlinesWN2723Axel-exclusive $225.002026-10-29T01:29:02Z
2027-06-20 · one wayFrontier AirlinesF94567 + F93439Axel-exclusive $135.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-21Southwest AirlinesWN2723 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-21Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-22Southwest AirlinesWN2723 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-22Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-23United AirlinesUA5536 / UA6046Axel-exclusive $460.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-23Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-24Southwest AirlinesWN2723 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-24Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-25Southwest AirlinesWN2723 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-25Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-26United AirlinesUA5536 / UA1588Axel-exclusive $460.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-26Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-27United AirlinesUA5536 / UA1588Axel-exclusive $460.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-27Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-28Southwest AirlinesWN2723 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-28Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-29Southwest AirlinesWN2723 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-29Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-30United AirlinesUA5536 / UA6046Axel-exclusive $460.002026-10-29T01:29:02Z
2027-06-20 → 2027-06-30Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-20 → 2027-07-01Southwest AirlinesWN2723 / WN2989Axel-exclusive $451.502026-10-29T01:29:02Z
2027-06-20 → 2027-07-01Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-20 → 2027-07-02Southwest AirlinesWN2723 / WN2989Axel-exclusive $451.502026-10-29T01:29:02Z
2027-06-20 → 2027-07-02Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-20 → 2027-07-03United AirlinesUA5536 / UA1588Axel-exclusive $494.502026-10-29T01:29:02Z
2027-06-20 → 2027-07-03Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-20 → 2027-07-04United AirlinesUA5536 / UA1588Axel-exclusive $494.502026-10-29T01:29:02Z
2027-06-20 → 2027-07-04Frontier AirlinesF94567 + F93439 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z

Route overview: Saint Louis to San Francisco (SFO) flight deals

2027-06-20 · one way · Axel-exclusive $135.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.

2027-06-20 · one way · Axel-exclusive $225.00

  • Southwest Airlines WN2723: STL 2027-06-20 07:55:00 → SFO 2027-06-20 10:15:00; nonstop; 260 minutes. Local airport times.

2027-06-20 → 2027-06-21 · Axel-exclusive $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-21 11:23:00 → STL 2027-06-21 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-21 11:23:00 → DEN 2027-06-21 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-21 16:09:00 → STL 2027-06-21 19:14:00.

2027-06-20 → 2027-06-21 · Axel-exclusive $420.00

  • Southwest Airlines WN2723: STL 2027-06-20 07:55:00 → SFO 2027-06-20 10:15:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-06-21 11:15:00 → STL 2027-06-21 17:10:00; nonstop; 235 minutes. Local airport times.

2027-06-20 → 2027-06-22 · Axel-exclusive $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-22 11:23:00 → STL 2027-06-22 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-22 11:23:00 → DEN 2027-06-22 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-22 16:09:00 → STL 2027-06-22 19:14:00.

2027-06-20 → 2027-06-22 · Axel-exclusive $420.00

  • Southwest Airlines WN2723: STL 2027-06-20 07:55:00 → SFO 2027-06-20 10:15:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-06-22 11:15:00 → STL 2027-06-22 17:10:00; nonstop; 235 minutes. Local airport times.

2027-06-20 → 2027-06-23 · Axel-exclusive $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-23 11:23:00 → STL 2027-06-23 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-23 11:23:00 → DEN 2027-06-23 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-23 16:09:00 → STL 2027-06-23 19:14:00.

2027-06-20 → 2027-06-23 · Axel-exclusive $460.00

  • United Airlines UA5536: STL 2027-06-20 06:11:00 → SFO 2027-06-20 09:30:00; nonstop; 319 minutes. Local airport times.
  • United Airlines UA6046: SFO 2027-06-23 10:13:00 → STL 2027-06-23 16:26:00; nonstop; 253 minutes. Local airport times.

2027-06-20 → 2027-06-24 · Axel-exclusive $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-24 11:23:00 → STL 2027-06-24 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-24 11:23:00 → DEN 2027-06-24 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-24 16:09:00 → STL 2027-06-24 19:14:00.

2027-06-20 → 2027-06-24 · Axel-exclusive $420.00

  • Southwest Airlines WN2723: STL 2027-06-20 07:55:00 → SFO 2027-06-20 10:15:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-06-24 11:15:00 → STL 2027-06-24 17:10:00; nonstop; 235 minutes. Local airport times.

2027-06-20 → 2027-06-26 · Axel-exclusive $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-26 11:23:00 → STL 2027-06-26 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-26 11:23:00 → DEN 2027-06-26 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-26 16:09:00 → STL 2027-06-26 19:14:00.

2027-06-20 → 2027-06-26 · Axel-exclusive $460.00

  • United Airlines UA5536: STL 2027-06-20 06:11:00 → SFO 2027-06-20 09:30:00; nonstop; 319 minutes. Local airport times.
  • United Airlines UA1588: SFO 2027-06-26 12:22:00 → STL 2027-06-26 18:17:00; nonstop; 235 minutes. Local airport times.

2027-06-20 → 2027-06-27 · Axel-exclusive $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-27 11:23:00 → STL 2027-06-27 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-27 11:23:00 → DEN 2027-06-27 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-27 16:09:00 → STL 2027-06-27 19:14:00.

2027-06-20 → 2027-06-27 · Axel-exclusive $460.00

  • United Airlines UA5536: STL 2027-06-20 06:11:00 → SFO 2027-06-20 09:30:00; nonstop; 319 minutes. Local airport times.
  • United Airlines UA1588: SFO 2027-06-27 12:22:00 → STL 2027-06-27 18:17:00; nonstop; 235 minutes. Local airport times.

2027-06-20 → 2027-06-28 · Axel-exclusive $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-28 11:23:00 → STL 2027-06-28 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-28 11:23:00 → DEN 2027-06-28 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-28 16:09:00 → STL 2027-06-28 19:14:00.

2027-06-20 → 2027-06-28 · Axel-exclusive $420.00

  • Southwest Airlines WN2723: STL 2027-06-20 07:55:00 → SFO 2027-06-20 10:15:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-06-28 11:15:00 → STL 2027-06-28 17:10:00; nonstop; 235 minutes. Local airport times.

2027-06-20 → 2027-06-30 · Axel-exclusive $250.00

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-30 11:23:00 → STL 2027-06-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-30 11:23:00 → DEN 2027-06-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-30 16:09:00 → STL 2027-06-30 19:14:00.

2027-06-20 → 2027-06-30 · Axel-exclusive $460.00

  • United Airlines UA5536: STL 2027-06-20 06:11:00 → SFO 2027-06-20 09:30:00; nonstop; 319 minutes. Local airport times.
  • United Airlines UA6046: SFO 2027-06-30 10:13:00 → STL 2027-06-30 16:26:00; nonstop; 253 minutes. Local airport times.

2027-06-20 → 2027-07-01 · Axel-exclusive $268.75

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-07-01 11:23:00 → STL 2027-07-01 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-07-01 11:23:00 → DEN 2027-07-01 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-07-01 16:09:00 → STL 2027-07-01 19:14:00.

2027-06-20 → 2027-07-01 · Axel-exclusive $451.50

  • Southwest Airlines WN2723: STL 2027-06-20 07:55:00 → SFO 2027-06-20 10:15:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-07-01 11:15:00 → STL 2027-07-01 17:10:00; nonstop; 235 minutes. Local airport times.

2027-06-20 → 2027-07-02 · Axel-exclusive $268.75

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-07-02 11:23:00 → STL 2027-07-02 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-07-02 11:23:00 → DEN 2027-07-02 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-07-02 16:09:00 → STL 2027-07-02 19:14:00.

2027-06-20 → 2027-07-02 · Axel-exclusive $451.50

  • Southwest Airlines WN2723: STL 2027-06-20 07:55:00 → SFO 2027-06-20 10:15:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-07-02 13:05:00 → STL 2027-07-02 18:55:00; nonstop; 230 minutes. Local airport times.

2027-06-20 → 2027-07-04 · Axel-exclusive $268.75

  • Frontier Airlines F94567 / F93439: STL 2027-06-20 19:58:00 → SFO 2027-06-21 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-06-20 19:58:00 → DEN 2027-06-20 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-06-20 22:57:00 → SFO 2027-06-21 00:48:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-07-04 11:23:00 → STL 2027-07-04 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-07-04 11:23:00 → DEN 2027-07-04 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-07-04 16:09:00 → STL 2027-07-04 19:14:00.

2027-06-20 → 2027-07-04 · Axel-exclusive $494.50

  • United Airlines UA5536: STL 2027-06-20 06:11:00 → SFO 2027-06-20 09:30:00; nonstop; 319 minutes. Local airport times.
  • United Airlines UA1588: SFO 2027-07-04 12:22:00 → STL 2027-07-04 18:17:00; nonstop; 235 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Saint Louis (STL) to San Francisco (SFO) · Jun 20, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Saint Louis to San Francisco (SFO) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.