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Route overview: San Francisco Bay Area to Ontario (ONT) flight deals

San Francisco → Ontario

Dec 2, 2026 · choose your return date

SFO → ONT1 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 2, 2026 · One wayFrontier AirlinesNonstop$65.00 Dec 2, 2026 · One wayUnited AirlinesNonstop$125.00 Dec 2, 2026 – Dec 3, 2026 · 1 nightFrontier AirlinesUp to 1 stop each way$157.50 Dec 2, 2026 – Dec 3, 2026 · 1 nightUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 4, 2026 · 2 nightsFrontier AirlinesUp to 1 stop each way$157.50 Dec 2, 2026 – Dec 4, 2026 · 2 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 5, 2026 · 3 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 5, 2026 · 3 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 6, 2026 · 4 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 6, 2026 · 4 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 7, 2026 · 5 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 7, 2026 · 5 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 8, 2026 · 6 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 8, 2026 · 6 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 9, 2026 · 7 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 9, 2026 · 7 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 10, 2026 · 8 nightsFrontier AirlinesUp to 1 stop each way$157.50 Dec 2, 2026 – Dec 10, 2026 · 8 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 11, 2026 · 9 nightsFrontier AirlinesUp to 1 stop each way$157.50 Dec 2, 2026 – Dec 11, 2026 · 9 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 12, 2026 · 10 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 12, 2026 · 10 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 13, 2026 · 11 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 13, 2026 · 11 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 14, 2026 · 12 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 14, 2026 · 12 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 15, 2026 · 13 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 15, 2026 · 13 nightsUnited AirlinesNonstop$235.00 Dec 2, 2026 – Dec 16, 2026 · 14 nightsFrontier AirlinesNonstop$125.00 Dec 2, 2026 – Dec 16, 2026 · 14 nightsUnited AirlinesNonstop$235.00

Flights for your trip

  1. Wed, Dec 2 · One way

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT

    One-way total · 1 adult · Taxes included

  2. Wed, Dec 2 · One way

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT

    One-way total · 1 adult · Taxes included

  3. Wed, Dec 2 – Thu, Dec 3

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 3m
    LAS · 1h 11m
    6:26 pmSFO

    Round-trip total · 1 adult · Taxes included

  4. Wed, Dec 2 – Thu, Dec 3

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    9:25 amONT
    1h 30m
    Nonstop
    10:55 amSFO

    Round-trip total · 1 adult · Taxes included

  5. Wed, Dec 2 – Fri, Dec 4

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 3m
    LAS · 1h 11m
    6:26 pmSFO

    Round-trip total · 1 adult · Taxes included

  6. Wed, Dec 2 – Fri, Dec 4

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    11:20 amONT
    1h 30m
    Nonstop
    12:50 pmSFO

    Round-trip total · 1 adult · Taxes included

  7. Wed, Dec 2 – Sat, Dec 5

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  8. Wed, Dec 2 – Sat, Dec 5

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    11:20 amONT
    1h 30m
    Nonstop
    12:50 pmSFO

    Round-trip total · 1 adult · Taxes included

  9. Wed, Dec 2 – Sun, Dec 6

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  10. Wed, Dec 2 – Sun, Dec 6

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    11:20 amONT
    1h 30m
    Nonstop
    12:50 pmSFO

    Round-trip total · 1 adult · Taxes included

  11. Wed, Dec 2 – Tue, Dec 8

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    7:26 pmONT
    1h 35m
    Nonstop
    9:01 pmSFO

    Round-trip total · 1 adult · Taxes included

  12. Wed, Dec 2 – Tue, Dec 8

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    11:20 amONT
    1h 30m
    Nonstop
    12:50 pmSFO

    Round-trip total · 1 adult · Taxes included

  13. Wed, Dec 2 – Wed, Dec 9

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  14. Wed, Dec 2 – Wed, Dec 9

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    6:00 amONT
    1h 30m
    Nonstop
    7:30 amSFO

    Round-trip total · 1 adult · Taxes included

  15. Wed, Dec 2 – Thu, Dec 10

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 3m
    LAS · 1h 11m
    6:26 pmSFO

    Round-trip total · 1 adult · Taxes included

  16. Wed, Dec 2 – Thu, Dec 10

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    9:25 amONT
    1h 30m
    Nonstop
    10:55 amSFO

    Round-trip total · 1 adult · Taxes included

  17. Wed, Dec 2 – Sat, Dec 12

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  18. Wed, Dec 2 – Sat, Dec 12

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    11:20 amONT
    1h 30m
    Nonstop
    12:50 pmSFO

    Round-trip total · 1 adult · Taxes included

  19. Wed, Dec 2 – Sun, Dec 13

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  20. Wed, Dec 2 – Sun, Dec 13

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    11:20 amONT
    1h 30m
    Nonstop
    12:50 pmSFO

    Round-trip total · 1 adult · Taxes included

  21. Wed, Dec 2 – Mon, Dec 14

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  22. Wed, Dec 2 – Mon, Dec 14

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    11:20 amONT
    1h 30m
    Nonstop
    12:50 pmSFO

    Round-trip total · 1 adult · Taxes included

  23. Wed, Dec 2 – Wed, Dec 16

    Frontier Airlines
    9:56 pmSFO
    1h 27m
    Nonstop
    11:23 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  24. Wed, Dec 2 – Wed, Dec 16

    United Airlines
    11:00 amSFO
    1h 29m
    Nonstop
    12:29 pmONT
    United Airlines
    6:00 amONT
    1h 30m
    Nonstop
    7:30 amSFO

    Round-trip total · 1 adult · Taxes included

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1 of 24

Make this trip yours

SFO ⇄ ONT

Economy

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Explore this route

All dates for this routeDec 1, 2026 · Return optionsDec 3, 2026 · Return options
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)
2026-12-02 · one wayFrontier AirlinesF91160Axel-exclusive $65.002026-10-29T01:18:59Z
2026-12-02 · one wayUnited AirlinesUA1482Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-03United AirlinesUA1482 / UA432Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-03Frontier AirlinesF91160 / F94758 + F94157Axel-exclusive $157.502026-10-29T01:18:59Z
2026-12-02 → 2026-12-04United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-04Frontier AirlinesF91160 / F94758 + F94157Axel-exclusive $157.502026-10-29T01:18:59Z
2026-12-02 → 2026-12-05Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-05United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-06Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-06United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-07Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-07United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-08Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-08United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-09Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-09United AirlinesUA1482 / UA2363Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-10United AirlinesUA1482 / UA432Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-10Frontier AirlinesF91160 / F94758 + F94157Axel-exclusive $157.502026-10-29T01:18:59Z
2026-12-02 → 2026-12-11United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-11Frontier AirlinesF91160 / F94758 + F94157Axel-exclusive $157.502026-10-29T01:18:59Z
2026-12-02 → 2026-12-12Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-12United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-13Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-13United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-14Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-14United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-15Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-15United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-16Frontier AirlinesF91160 / F91159Axel-exclusive $125.002026-10-29T01:18:59Z
2026-12-02 → 2026-12-16United AirlinesUA1482 / UA2363Axel-exclusive $235.002026-10-29T01:18:59Z

Route overview: San Francisco Bay Area to Ontario (ONT) flight deals

2026-12-02 · one way · Axel-exclusive $65.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.

2026-12-02 · one way · Axel-exclusive $125.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.

2026-12-02 → 2026-12-03 · Axel-exclusive $157.50

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F94758 / F94157: ONT 2026-12-03 14:23:00 → SFO 2026-12-03 18:26:00; 1 stop(s) via LAS; 243 minutes. Local airport times.
    • F94758: ONT 2026-12-03 14:23:00 → LAS 2026-12-03 15:31:00; layover at LAS: 71 minutes.
    • F94157: LAS 2026-12-03 16:42:00 → SFO 2026-12-03 18:26:00.

2026-12-02 → 2026-12-03 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA432: ONT 2026-12-03 09:25:00 → SFO 2026-12-03 10:55:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-04 · Axel-exclusive $157.50

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F94758 / F94157: ONT 2026-12-04 14:23:00 → SFO 2026-12-04 18:26:00; 1 stop(s) via LAS; 243 minutes. Local airport times.
    • F94758: ONT 2026-12-04 14:23:00 → LAS 2026-12-04 15:31:00; layover at LAS: 71 minutes.
    • F94157: LAS 2026-12-04 16:42:00 → SFO 2026-12-04 18:26:00.

2026-12-02 → 2026-12-04 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2026-12-04 11:20:00 → SFO 2026-12-04 12:50:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $125.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F91159: ONT 2026-12-05 12:01:00 → SFO 2026-12-05 13:36:00; nonstop; 95 minutes. Local airport times.

2026-12-02 → 2026-12-05 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2026-12-05 11:20:00 → SFO 2026-12-05 12:50:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-06 · Axel-exclusive $125.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F91159: ONT 2026-12-06 12:01:00 → SFO 2026-12-06 13:36:00; nonstop; 95 minutes. Local airport times.

2026-12-02 → 2026-12-06 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2026-12-06 11:20:00 → SFO 2026-12-06 12:50:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-08 · Axel-exclusive $125.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F91159: ONT 2026-12-08 19:26:00 → SFO 2026-12-08 21:01:00; nonstop; 95 minutes. Local airport times.

2026-12-02 → 2026-12-08 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2026-12-08 11:20:00 → SFO 2026-12-08 12:50:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-09 · Axel-exclusive $125.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F91159: ONT 2026-12-09 12:01:00 → SFO 2026-12-09 13:36:00; nonstop; 95 minutes. Local airport times.

2026-12-02 → 2026-12-09 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA2363: ONT 2026-12-09 06:00:00 → SFO 2026-12-09 07:30:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-10 · Axel-exclusive $157.50

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F94758 / F94157: ONT 2026-12-10 14:23:00 → SFO 2026-12-10 18:26:00; 1 stop(s) via LAS; 243 minutes. Local airport times.
    • F94758: ONT 2026-12-10 14:23:00 → LAS 2026-12-10 15:31:00; layover at LAS: 71 minutes.
    • F94157: LAS 2026-12-10 16:42:00 → SFO 2026-12-10 18:26:00.

2026-12-02 → 2026-12-10 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA432: ONT 2026-12-10 09:25:00 → SFO 2026-12-10 10:55:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-12 · Axel-exclusive $125.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F91159: ONT 2026-12-12 12:01:00 → SFO 2026-12-12 13:36:00; nonstop; 95 minutes. Local airport times.

2026-12-02 → 2026-12-12 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2026-12-12 11:20:00 → SFO 2026-12-12 12:50:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-13 · Axel-exclusive $125.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F91159: ONT 2026-12-13 12:01:00 → SFO 2026-12-13 13:36:00; nonstop; 95 minutes. Local airport times.

2026-12-02 → 2026-12-13 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2026-12-13 11:20:00 → SFO 2026-12-13 12:50:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-14 · Axel-exclusive $125.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F91159: ONT 2026-12-14 12:01:00 → SFO 2026-12-14 13:36:00; nonstop; 95 minutes. Local airport times.

2026-12-02 → 2026-12-14 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2026-12-14 11:20:00 → SFO 2026-12-14 12:50:00; nonstop; 90 minutes. Local airport times.

2026-12-02 → 2026-12-16 · Axel-exclusive $125.00

  • Frontier Airlines F91160: SFO 2026-12-02 21:56:00 → ONT 2026-12-02 23:23:00; nonstop; 87 minutes. Local airport times.
  • Frontier Airlines F91159: ONT 2026-12-16 12:01:00 → SFO 2026-12-16 13:36:00; nonstop; 95 minutes. Local airport times.

2026-12-02 → 2026-12-16 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2026-12-02 11:00:00 → ONT 2026-12-02 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA2363: ONT 2026-12-16 06:00:00 → SFO 2026-12-16 07:30:00; nonstop; 90 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: San Francisco (SFO) to Ontario (ONT) · Dec 2, 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 Ontario (ONT) 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.