Travel with Axel,
get the best price.

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

Saint Louis → San Francisco

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

Flights for your trip

  1. Sat, Jun 26 · One way

    Frontier Airlines
    2:02 pmSTL
    6h 24m
    LAS · 1h 4m
    6:26 pmSFO

    One-way total · 1 adult · Taxes included

  2. Sat, Jun 26 · One way

    Southwest Airlines
    8:00 amSTL
    4h 20m
    Nonstop
    10:20 amSFO

    One-way total · 1 adult · Taxes included

  3. Sat, Jun 26 – Sun, Jun 27

    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

  4. Sat, Jun 26 – Sun, Jun 27

    United Airlines
    7:05 pmSTL
    4h 36m
    Nonstop
    9:41 pmSFO
    United Airlines
    4:25 pmSFO
    3h 50m
    Nonstop
    10:15 pmSTL

    Round-trip total · 1 adult · Taxes included

  5. Sat, Jun 26 – Mon, Jun 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

  6. Sat, Jun 26 – Mon, Jun 28

    Southwest Airlines
    8:00 amSTL
    4h 20m
    Nonstop
    10:20 amSFO
    Southwest Airlines
    11:15 amSFO
    3h 55m
    Nonstop
    5:10 pmSTL

    Round-trip total · 1 adult · Taxes included

  7. Sat, Jun 26 – Tue, Jun 29

    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

  8. Sat, Jun 26 – Tue, Jun 29

    Southwest Airlines
    8:00 amSTL
    4h 20m
    Nonstop
    10:20 amSFO
    Southwest Airlines
    11:15 amSFO
    3h 55m
    Nonstop
    5:10 pmSTL

    Round-trip total · 1 adult · Taxes included

  9. Sat, Jun 26 – Wed, Jun 30

    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

  10. Sat, Jun 26 – Wed, Jun 30

    United Airlines
    7:05 pmSTL
    4h 36m
    Nonstop
    9:41 pmSFO
    United Airlines
    12:15 pmSFO
    3h 50m
    Nonstop
    6:05 pmSTL

    Round-trip total · 1 adult · Taxes included

  11. Sat, Jun 26 – Fri, Jul 2

    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

  12. Sat, Jun 26 – Fri, Jul 2

    Southwest Airlines
    8:00 amSTL
    4h 20m
    Nonstop
    10:20 amSFO
    Southwest Airlines
    1:05 pmSFO
    3h 50m
    Nonstop
    6:55 pmSTL

    Round-trip total · 1 adult · Taxes included

  13. Sat, Jun 26 – Sat, Jul 3

    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

  14. Sat, Jun 26 – Sat, Jul 3

    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

  15. Sat, Jun 26 – Sun, Jul 4

    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

  16. Sat, Jun 26 – Sun, Jul 4

    United Airlines
    7:05 pmSTL
    4h 36m
    Nonstop
    9:41 pmSFO
    United Airlines
    4:25 pmSFO
    3h 50m
    Nonstop
    10:15 pmSTL

    Round-trip total · 1 adult · Taxes included

  17. Sat, Jun 26 – Tue, Jul 6

    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

  18. Sat, Jun 26 – Tue, Jul 6

    Southwest Airlines
    8:00 amSTL
    4h 20m
    Nonstop
    10:20 amSFO
    Southwest Airlines
    11:15 amSFO
    3h 55m
    Nonstop
    5:10 pmSTL

    Round-trip total · 1 adult · Taxes included

  19. Sat, Jun 26 – Wed, Jul 7

    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

  20. Sat, Jun 26 – Wed, Jul 7

    United Airlines
    7:05 pmSTL
    4h 36m
    Nonstop
    9:41 pmSFO
    United Airlines
    12:15 pmSFO
    3h 50m
    Nonstop
    6:05 pmSTL

    Round-trip total · 1 adult · Taxes included

  21. Sat, Jun 26 – Thu, Jul 8

    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

  22. Sat, Jun 26 – Thu, Jul 8

    Southwest Airlines
    8:00 amSTL
    4h 20m
    Nonstop
    10:20 amSFO
    Southwest Airlines
    1:05 pmSFO
    3h 50m
    Nonstop
    6:55 pmSTL

    Round-trip total · 1 adult · Taxes included

  23. Sat, Jun 26 – Sat, Jul 10

    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

  24. Sat, Jun 26 – Sat, Jul 10

    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

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.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Southwest Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeJun 25, 2027 · Return optionsJun 27, 2027 · Return optionsHotels in San Francisco with Axel
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.

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)
2027-06-26 · one waySouthwest AirlinesWN4751Axel-exclusive $225.002026-10-29T01:29:02Z
2027-06-26 · one wayFrontier AirlinesF93107 + F94157Axel-exclusive $135.002026-10-29T01:29:02Z
2027-06-26 → 2027-06-27United AirlinesUA214 / UA1924Axel-exclusive $460.002026-10-29T01:29:02Z
2027-06-26 → 2027-06-27Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-26 → 2027-06-28Southwest AirlinesWN4751 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-26 → 2027-06-28Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-26 → 2027-06-29Southwest AirlinesWN4751 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-26 → 2027-06-29Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-26 → 2027-06-30United AirlinesUA214 / UA1905Axel-exclusive $460.002026-10-29T01:29:02Z
2027-06-26 → 2027-06-30Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-26 → 2027-07-01Southwest AirlinesWN4751 / WN2989Axel-exclusive $451.502026-10-29T01:29:02Z
2027-06-26 → 2027-07-01Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-26 → 2027-07-02Southwest AirlinesWN4751 / WN2989Axel-exclusive $451.502026-10-29T01:29:02Z
2027-06-26 → 2027-07-02Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-26 → 2027-07-03United AirlinesUA214 / UA1588Axel-exclusive $494.502026-10-29T01:29:02Z
2027-06-26 → 2027-07-03Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-26 → 2027-07-04United AirlinesUA214 / UA1924Axel-exclusive $494.502026-10-29T01:29:02Z
2027-06-26 → 2027-07-04Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-26 → 2027-07-05Southwest AirlinesWN4751 / WN2989Axel-exclusive $451.502026-10-29T01:29:02Z
2027-06-26 → 2027-07-05Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-26 → 2027-07-06Southwest AirlinesWN4751 / WN2989Axel-exclusive $451.502026-10-29T01:29:02Z
2027-06-26 → 2027-07-06Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $268.752026-10-29T01:29:02Z
2027-06-26 → 2027-07-07United AirlinesUA214 / UA1905Axel-exclusive $460.002026-10-29T01:29:02Z
2027-06-26 → 2027-07-07Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-26 → 2027-07-08Southwest AirlinesWN4751 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-26 → 2027-07-08Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-26 → 2027-07-09Southwest AirlinesWN4751 / WN2989Axel-exclusive $420.002026-10-29T01:29:02Z
2027-06-26 → 2027-07-09Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z
2027-06-26 → 2027-07-10United AirlinesUA214 / UA1588Axel-exclusive $460.002026-10-29T01:29:02Z
2027-06-26 → 2027-07-10Frontier AirlinesF93107 + F94157 / F93436 + F93302Axel-exclusive $250.002026-10-29T01:29:02Z

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

2027-06-26 · one way · Axel-exclusive $135.00

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.

2027-06-26 · one way · Axel-exclusive $225.00

  • Southwest Airlines WN4751: STL 2027-06-26 08:00:00 → SFO 2027-06-26 10:20:00; nonstop; 260 minutes. Local airport times.

2027-06-26 → 2027-06-27 · Axel-exclusive $250.00

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • 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.

2027-06-26 → 2027-06-27 · Axel-exclusive $460.00

  • United Airlines UA214: STL 2027-06-26 19:05:00 → SFO 2027-06-26 21:41:00; nonstop; 276 minutes. Local airport times.
  • United Airlines UA1924: SFO 2027-06-27 16:25:00 → STL 2027-06-27 22:15:00; nonstop; 230 minutes. Local airport times.

2027-06-26 → 2027-06-28 · Axel-exclusive $250.00

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • 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.

2027-06-26 → 2027-06-28 · Axel-exclusive $420.00

  • Southwest Airlines WN4751: STL 2027-06-26 08:00:00 → SFO 2027-06-26 10:20:00; 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.

2027-06-26 → 2027-06-29 · Axel-exclusive $250.00

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-06-29 11:23:00 → STL 2027-06-29 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-06-29 11:23:00 → DEN 2027-06-29 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-06-29 16:09:00 → STL 2027-06-29 19:14:00.

2027-06-26 → 2027-06-29 · Axel-exclusive $420.00

  • Southwest Airlines WN4751: STL 2027-06-26 08:00:00 → SFO 2027-06-26 10:20:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-06-29 11:15:00 → STL 2027-06-29 17:10:00; nonstop; 235 minutes. Local airport times.

2027-06-26 → 2027-06-30 · Axel-exclusive $250.00

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • 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.

2027-06-26 → 2027-06-30 · Axel-exclusive $460.00

  • United Airlines UA214: STL 2027-06-26 19:05:00 → SFO 2027-06-26 21:41:00; nonstop; 276 minutes. Local airport times.
  • United Airlines UA1905: SFO 2027-06-30 12:15:00 → STL 2027-06-30 18:05:00; nonstop; 230 minutes. Local airport times.

2027-06-26 → 2027-07-02 · Axel-exclusive $268.75

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • 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.

2027-06-26 → 2027-07-02 · Axel-exclusive $451.50

  • Southwest Airlines WN4751: STL 2027-06-26 08:00:00 → SFO 2027-06-26 10:20:00; 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.

2027-06-26 → 2027-07-03 · Axel-exclusive $268.75

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-07-03 11:23:00 → STL 2027-07-03 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-07-03 11:23:00 → DEN 2027-07-03 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-07-03 16:09:00 → STL 2027-07-03 19:14:00.

2027-06-26 → 2027-07-03 · Axel-exclusive $494.50

  • United Airlines UA214: STL 2027-06-26 19:05:00 → SFO 2027-06-26 21:41:00; nonstop; 276 minutes. Local airport times.
  • United Airlines UA1588: SFO 2027-07-03 12:22:00 → STL 2027-07-03 18:17:00; nonstop; 235 minutes. Local airport times.

2027-06-26 → 2027-07-04 · Axel-exclusive $268.75

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • 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.

2027-06-26 → 2027-07-04 · Axel-exclusive $494.50

  • United Airlines UA214: STL 2027-06-26 19:05:00 → SFO 2027-06-26 21:41:00; nonstop; 276 minutes. Local airport times.
  • United Airlines UA1924: SFO 2027-07-04 16:25:00 → STL 2027-07-04 22:15:00; nonstop; 230 minutes. Local airport times.

2027-06-26 → 2027-07-06 · Axel-exclusive $268.75

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-07-06 11:23:00 → STL 2027-07-06 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-07-06 11:23:00 → DEN 2027-07-06 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-07-06 16:09:00 → STL 2027-07-06 19:14:00.

2027-06-26 → 2027-07-06 · Axel-exclusive $451.50

  • Southwest Airlines WN4751: STL 2027-06-26 08:00:00 → SFO 2027-06-26 10:20:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-07-06 11:15:00 → STL 2027-07-06 17:10:00; nonstop; 235 minutes. Local airport times.

2027-06-26 → 2027-07-07 · Axel-exclusive $250.00

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-07-07 11:23:00 → STL 2027-07-07 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-07-07 11:23:00 → DEN 2027-07-07 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-07-07 16:09:00 → STL 2027-07-07 19:14:00.

2027-06-26 → 2027-07-07 · Axel-exclusive $460.00

  • United Airlines UA214: STL 2027-06-26 19:05:00 → SFO 2027-06-26 21:41:00; nonstop; 276 minutes. Local airport times.
  • United Airlines UA1905: SFO 2027-07-07 12:15:00 → STL 2027-07-07 18:05:00; nonstop; 230 minutes. Local airport times.

2027-06-26 → 2027-07-08 · Axel-exclusive $250.00

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-07-08 11:23:00 → STL 2027-07-08 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-07-08 11:23:00 → DEN 2027-07-08 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-07-08 16:09:00 → STL 2027-07-08 19:14:00.

2027-06-26 → 2027-07-08 · Axel-exclusive $420.00

  • Southwest Airlines WN4751: STL 2027-06-26 08:00:00 → SFO 2027-06-26 10:20:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2989: SFO 2027-07-08 13:05:00 → STL 2027-07-08 18:55:00; nonstop; 230 minutes. Local airport times.

2027-06-26 → 2027-07-10 · Axel-exclusive $250.00

  • Frontier Airlines F93107 / F94157: STL 2027-06-26 14:02:00 → SFO 2027-06-26 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-06-26 14:02:00 → LAS 2027-06-26 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-06-26 16:42:00 → SFO 2027-06-26 18:26:00.
  • Frontier Airlines F93436 / F93302: SFO 2027-07-10 11:23:00 → STL 2027-07-10 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2027-07-10 11:23:00 → DEN 2027-07-10 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2027-07-10 16:09:00 → STL 2027-07-10 19:14:00.

2027-06-26 → 2027-07-10 · Axel-exclusive $460.00

  • United Airlines UA214: STL 2027-06-26 19:05:00 → SFO 2027-06-26 21:41:00; nonstop; 276 minutes. Local airport times.
  • United Airlines UA1588: SFO 2027-07-10 12:22:00 → STL 2027-07-10 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 26, 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.