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Route overview: San Francisco Bay Area to Saint Louis (STL) flight deals

San Francisco → Saint Louis

Dec 30, 2026 · choose your return date

SFO → STL1 adulteconomyOne way and round trips

30 flight options · 2 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.

December 2026

Dec 30, 2026 · One wayFrontier AirlinesUp to 1 stop each way$130.00 Dec 30, 2026 · One wayUnited AirlinesNonstop$273.00 Dec 30, 2026 – Dec 31, 2026 · 1 nightFrontier AirlinesUp to 1 stop each way$247.00 Dec 30, 2026 – Dec 31, 2026 · 1 nightUnited AirlinesNonstop$520.00 Dec 30, 2026 – Jan 1, 2027 · 2 nightsFrontier AirlinesUp to 1 stop each way$240.35 Dec 30, 2026 – Jan 1, 2027 · 2 nightsUnited AirlinesNonstop$506.00 Dec 30, 2026 – Jan 2, 2027 · 3 nightsFrontier AirlinesUp to 1 stop each way$240.35 Dec 30, 2026 – Jan 2, 2027 · 3 nightsUnited AirlinesNonstop$506.00 Dec 30, 2026 – Jan 3, 2027 · 4 nightsFrontier AirlinesUp to 1 stop each way$240.35 Dec 30, 2026 – Jan 3, 2027 · 4 nightsUnited AirlinesNonstop$506.00 Dec 30, 2026 – Jan 4, 2027 · 5 nightsFrontier AirlinesUp to 1 stop each way$240.35 Dec 30, 2026 – Jan 4, 2027 · 5 nightsUnited AirlinesNonstop$506.00 Dec 30, 2026 – Jan 5, 2027 · 6 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 5, 2027 · 6 nightsUnited AirlinesNonstop$450.00 Dec 30, 2026 – Jan 6, 2027 · 7 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 6, 2027 · 7 nightsUnited AirlinesNonstop$450.00 Dec 30, 2026 – Jan 7, 2027 · 8 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 7, 2027 · 8 nightsUnited AirlinesNonstop$450.00 Dec 30, 2026 – Jan 8, 2027 · 9 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 8, 2027 · 9 nightsUnited AirlinesNonstop$450.00 Dec 30, 2026 – Jan 9, 2027 · 10 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 9, 2027 · 10 nightsUnited AirlinesNonstop$450.00 Dec 30, 2026 – Jan 10, 2027 · 11 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 10, 2027 · 11 nightsUnited AirlinesNonstop$450.00 Dec 30, 2026 – Jan 11, 2027 · 12 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 11, 2027 · 12 nightsUnited AirlinesNonstop$450.00 Dec 30, 2026 – Jan 12, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 12, 2027 · 13 nightsUnited AirlinesNonstop$450.00 Dec 30, 2026 – Jan 13, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$213.75 Dec 30, 2026 – Jan 13, 2027 · 14 nightsUnited AirlinesNonstop$450.00

Flights for your trip

  1. Wed, Dec 30 · One way

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

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Wed, Dec 30 · One way

    United Airlines
    10:13 amSFO
    4h 13m
    Nonstop
    4:26 pmSTL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Wed, Dec 30 – Thu, Dec 31

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Wed, Dec 30 – Thu, Dec 31

    United Airlines
    10:13 amSFO
    4h 13m
    Nonstop
    4:26 pmSTL
    United Airlines
    8:17 amSTL
    4h 38m
    Nonstop
    10:55 amSFO

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Wed, Dec 30 – Fri, Jan 1

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Wed, Dec 30 – Fri, Jan 1

    United Airlines
    10:13 amSFO
    4h 13m
    Nonstop
    4:26 pmSTL
    United Airlines
    5:07 pmSTL
    4h 59m
    Nonstop
    8:06 pmSFO

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Wed, Dec 30 – Sat, Jan 2

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Wed, Dec 30 – Sat, Jan 2

    United Airlines
    10:13 amSFO
    4h 13m
    Nonstop
    4:26 pmSTL
    United Airlines
    7:05 pmSTL
    4h 36m
    Nonstop
    9:41 pmSFO

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Wed, Dec 30 – Sun, Jan 3

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Wed, Dec 30 – Sun, Jan 3

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Wed, Dec 30 – Tue, Jan 5

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Wed, Dec 30 – Tue, Jan 5

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Wed, Dec 30 – Wed, Jan 6

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Wed, Dec 30 – Wed, Jan 6

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Wed, Dec 30 – Thu, Jan 7

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Wed, Dec 30 – Thu, Jan 7

    United Airlines
    10:13 amSFO
    4h 13m
    Nonstop
    4:26 pmSTL
    United Airlines
    8:17 amSTL
    4h 38m
    Nonstop
    10:55 amSFO

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Wed, Dec 30 – Sat, Jan 9

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Wed, Dec 30 – Sat, Jan 9

    United Airlines
    10:13 amSFO
    4h 13m
    Nonstop
    4:26 pmSTL
    United Airlines
    7:05 pmSTL
    4h 36m
    Nonstop
    9:41 pmSFO

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Wed, Dec 30 – Sun, Jan 10

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Wed, Dec 30 – Sun, Jan 10

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Wed, Dec 30 – Mon, Jan 11

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Wed, Dec 30 – Mon, Jan 11

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Wed, Dec 30 – Wed, Jan 13

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Wed, Dec 30 – Wed, Jan 13

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

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Make this trip yours

SFO ⇄ STL

Economy

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Explore this route

All dates for this routeDec 29, 2026 · Return optionsDec 31, 2026 · Return optionsHotels in St. Louis 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)
2026-12-30 · one wayUnited AirlinesUA6046Axel-exclusive $273.002026-10-29T01:19:49Z
2026-12-30 · one wayFrontier AirlinesF93436 + F93302Axel-exclusive $130.002026-10-29T01:19:49Z
2026-12-30 → 2026-12-31United AirlinesUA6046 / UA1257Axel-exclusive $520.002026-10-29T01:19:49Z
2026-12-30 → 2026-12-31Frontier AirlinesF93436 + F93302 / F93107 + F94157Axel-exclusive $247.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-01United AirlinesUA6046 / UA5943Axel-exclusive $506.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-01Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $240.352026-10-29T01:19:49Z
2026-12-30 → 2027-01-02United AirlinesUA6046 / UA214Axel-exclusive $506.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-02Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $240.352026-10-29T01:19:49Z
2026-12-30 → 2027-01-03United AirlinesUA6046 / UA5536Axel-exclusive $506.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-03Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $240.352026-10-29T01:19:49Z
2026-12-30 → 2027-01-04United AirlinesUA6046 / UA5536Axel-exclusive $506.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-04Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $240.352026-10-29T01:19:49Z
2026-12-30 → 2027-01-05United AirlinesUA6046 / UA5536Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-05Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $213.752026-10-29T01:19:49Z
2026-12-30 → 2027-01-06United AirlinesUA6046 / UA5536Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-06Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $213.752026-10-29T01:19:49Z
2026-12-30 → 2027-01-07United AirlinesUA6046 / UA1257Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-07Frontier AirlinesF93436 + F93302 / F93107 + F94157Axel-exclusive $213.752026-10-29T01:19:49Z
2026-12-30 → 2027-01-08United AirlinesUA6046 / UA5943Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-08Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $213.752026-10-29T01:19:49Z
2026-12-30 → 2027-01-09United AirlinesUA6046 / UA214Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-09Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $213.752026-10-29T01:19:49Z
2026-12-30 → 2027-01-10United AirlinesUA6046 / UA5536Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-10Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $213.752026-10-29T01:19:49Z
2026-12-30 → 2027-01-11United AirlinesUA6046 / UA5536Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-11Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $213.752026-10-29T01:19:49Z
2026-12-30 → 2027-01-12United AirlinesUA6046 / UA5536Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-12Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $213.752026-10-29T01:19:49Z
2026-12-30 → 2027-01-13United AirlinesUA6046 / UA5536Axel-exclusive $450.002026-10-29T01:19:49Z
2026-12-30 → 2027-01-13Frontier AirlinesF93436 + F93302 / F94567 + F93439Axel-exclusive $213.752026-10-29T01:19:49Z

Route overview: San Francisco Bay Area to Saint Louis (STL) flight deals

2026-12-30 · one way · Axel-exclusive $130.00

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.

2026-12-30 · one way · Axel-exclusive $273.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.

2026-12-30 → 2026-12-31 · Axel-exclusive $247.00

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F93107 / F94157: STL 2026-12-31 14:02:00 → SFO 2026-12-31 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2026-12-31 14:02:00 → LAS 2026-12-31 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2026-12-31 16:42:00 → SFO 2026-12-31 18:26:00.

2026-12-30 → 2026-12-31 · Axel-exclusive $520.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA1257: STL 2026-12-31 08:17:00 → SFO 2026-12-31 10:55:00; nonstop; 278 minutes. Local airport times.

2026-12-30 → 2027-01-01 · Axel-exclusive $240.35

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-01 19:58:00 → SFO 2027-01-02 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-01 19:58:00 → DEN 2027-01-01 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-01 22:57:00 → SFO 2027-01-02 00:48:00.

2026-12-30 → 2027-01-01 · Axel-exclusive $506.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA5943: STL 2027-01-01 17:07:00 → SFO 2027-01-01 20:06:00; nonstop; 299 minutes. Local airport times.

2026-12-30 → 2027-01-02 · Axel-exclusive $240.35

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-02 19:58:00 → SFO 2027-01-03 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-02 19:58:00 → DEN 2027-01-02 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-02 22:57:00 → SFO 2027-01-03 00:48:00.

2026-12-30 → 2027-01-02 · Axel-exclusive $506.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA214: STL 2027-01-02 19:05:00 → SFO 2027-01-02 21:41:00; nonstop; 276 minutes. Local airport times.

2026-12-30 → 2027-01-03 · Axel-exclusive $240.35

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-03 19:58:00 → SFO 2027-01-04 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-03 19:58:00 → DEN 2027-01-03 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-03 22:57:00 → SFO 2027-01-04 00:48:00.

2026-12-30 → 2027-01-03 · Axel-exclusive $506.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA5536: STL 2027-01-03 06:11:00 → SFO 2027-01-03 09:30:00; nonstop; 319 minutes. Local airport times.

2026-12-30 → 2027-01-05 · Axel-exclusive $213.75

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-05 19:58:00 → SFO 2027-01-06 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-05 19:58:00 → DEN 2027-01-05 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-05 22:57:00 → SFO 2027-01-06 00:48:00.

2026-12-30 → 2027-01-05 · Axel-exclusive $450.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA5536: STL 2027-01-05 06:11:00 → SFO 2027-01-05 09:30:00; nonstop; 319 minutes. Local airport times.

2026-12-30 → 2027-01-06 · Axel-exclusive $213.75

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-06 19:58:00 → SFO 2027-01-07 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-06 19:58:00 → DEN 2027-01-06 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-06 22:57:00 → SFO 2027-01-07 00:48:00.

2026-12-30 → 2027-01-06 · Axel-exclusive $450.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA5536: STL 2027-01-06 06:11:00 → SFO 2027-01-06 09:30:00; nonstop; 319 minutes. Local airport times.

2026-12-30 → 2027-01-07 · Axel-exclusive $213.75

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F93107 / F94157: STL 2027-01-07 14:02:00 → SFO 2027-01-07 18:26:00; 1 stop(s) via LAS; 384 minutes. Local airport times.
    • F93107: STL 2027-01-07 14:02:00 → LAS 2027-01-07 15:38:00; layover at LAS: 64 minutes.
    • F94157: LAS 2027-01-07 16:42:00 → SFO 2027-01-07 18:26:00.

2026-12-30 → 2027-01-07 · Axel-exclusive $450.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA1257: STL 2027-01-07 08:17:00 → SFO 2027-01-07 10:55:00; nonstop; 278 minutes. Local airport times.

2026-12-30 → 2027-01-09 · Axel-exclusive $213.75

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-09 19:58:00 → SFO 2027-01-10 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-09 19:58:00 → DEN 2027-01-09 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-09 22:57:00 → SFO 2027-01-10 00:48:00.

2026-12-30 → 2027-01-09 · Axel-exclusive $450.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA214: STL 2027-01-09 19:05:00 → SFO 2027-01-09 21:41:00; nonstop; 276 minutes. Local airport times.

2026-12-30 → 2027-01-10 · Axel-exclusive $213.75

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-10 19:58:00 → SFO 2027-01-11 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-10 19:58:00 → DEN 2027-01-10 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-10 22:57:00 → SFO 2027-01-11 00:48:00.

2026-12-30 → 2027-01-10 · Axel-exclusive $450.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA5536: STL 2027-01-10 06:11:00 → SFO 2027-01-10 09:30:00; nonstop; 319 minutes. Local airport times.

2026-12-30 → 2027-01-11 · Axel-exclusive $213.75

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-11 19:58:00 → SFO 2027-01-12 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-11 19:58:00 → DEN 2027-01-11 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-11 22:57:00 → SFO 2027-01-12 00:48:00.

2026-12-30 → 2027-01-11 · Axel-exclusive $450.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA5536: STL 2027-01-11 06:11:00 → SFO 2027-01-11 09:30:00; nonstop; 319 minutes. Local airport times.

2026-12-30 → 2027-01-13 · Axel-exclusive $213.75

  • Frontier Airlines F93436 / F93302: SFO 2026-12-30 11:23:00 → STL 2026-12-30 19:14:00; 1 stop(s) via DEN; 351 minutes. Local airport times.
    • F93436: SFO 2026-12-30 11:23:00 → DEN 2026-12-30 15:07:00; layover at DEN: 62 minutes.
    • F93302: DEN 2026-12-30 16:09:00 → STL 2026-12-30 19:14:00.
  • Frontier Airlines F94567 / F93439: STL 2027-01-13 19:58:00 → SFO 2027-01-14 00:48:00; 1 stop(s) via DEN; 410 minutes. Local airport times.
    • F94567: STL 2027-01-13 19:58:00 → DEN 2027-01-13 21:29:00; layover at DEN: 88 minutes.
    • F93439: DEN 2027-01-13 22:57:00 → SFO 2027-01-14 00:48:00.

2026-12-30 → 2027-01-13 · Axel-exclusive $450.00

  • United Airlines UA6046: SFO 2026-12-30 10:13:00 → STL 2026-12-30 16:26:00; nonstop; 253 minutes. Local airport times.
  • United Airlines UA5536: STL 2027-01-13 06:11:00 → SFO 2027-01-13 09:30:00; nonstop; 319 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: San Francisco (SFO) to Saint Louis (STL) · Dec 30, 2026 · 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 San Francisco Bay Area to Saint Louis (STL) 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.