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

San Francisco → Ontario

Feb 8, 2027 · 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.

February 2027

Feb 8, 2027 · One wayFrontier AirlinesUp to 1 stop each way$100.00 Feb 8, 2027 · One wayUnited AirlinesNonstop$125.00 Feb 8, 2027 – Feb 9, 2027 · 1 nightFrontier AirlinesUp to 1 stop each way$157.50 Feb 8, 2027 – Feb 9, 2027 · 1 nightUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 10, 2027 · 2 nightsFrontier AirlinesUp to 1 stop each way$157.50 Feb 8, 2027 – Feb 10, 2027 · 2 nightsUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 11, 2027 · 3 nightsFrontier AirlinesUp to 1 stop each way$190.00 Feb 8, 2027 – Feb 11, 2027 · 3 nightsUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 12, 2027 · 4 nightsFrontier AirlinesUp to 1 stop each way$204.25 Feb 8, 2027 – Feb 12, 2027 · 4 nightsUnited AirlinesNonstop$252.63 Feb 8, 2027 – Feb 13, 2027 · 5 nightsFrontier AirlinesUp to 1 stop each way$166.88 Feb 8, 2027 – Feb 13, 2027 · 5 nightsUnited AirlinesNonstop$252.63 Feb 8, 2027 – Feb 14, 2027 · 6 nightsFrontier AirlinesUp to 1 stop each way$166.88 Feb 8, 2027 – Feb 14, 2027 · 6 nightsUnited AirlinesNonstop$252.63 Feb 8, 2027 – Feb 15, 2027 · 7 nightsFrontier AirlinesUp to 1 stop each way$166.88 Feb 8, 2027 – Feb 15, 2027 · 7 nightsUnited AirlinesNonstop$252.63 Feb 8, 2027 – Feb 16, 2027 · 8 nightsFrontier AirlinesUp to 1 stop each way$157.50 Feb 8, 2027 – Feb 16, 2027 · 8 nightsUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 17, 2027 · 9 nightsFrontier AirlinesUp to 1 stop each way$157.50 Feb 8, 2027 – Feb 17, 2027 · 9 nightsUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 18, 2027 · 10 nightsFrontier AirlinesUp to 1 stop each way$190.00 Feb 8, 2027 – Feb 18, 2027 · 10 nightsUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 19, 2027 · 11 nightsFrontier AirlinesUp to 1 stop each way$190.00 Feb 8, 2027 – Feb 19, 2027 · 11 nightsUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 20, 2027 · 12 nightsFrontier AirlinesUp to 1 stop each way$157.50 Feb 8, 2027 – Feb 20, 2027 · 12 nightsUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 21, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$157.50 Feb 8, 2027 – Feb 21, 2027 · 13 nightsUnited AirlinesNonstop$235.00 Feb 8, 2027 – Feb 22, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$157.50 Feb 8, 2027 – Feb 22, 2027 · 14 nightsUnited AirlinesNonstop$235.00

Flights for your trip

  1. Mon, Feb 8 · One way

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT

    One-way total · 1 adult · Taxes included

  2. Mon, Feb 8 · One way

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

    One-way total · 1 adult · Taxes included

  3. Mon, Feb 8 – Tue, Feb 9

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    7:26 pmONT
    1h 35m
    Nonstop
    9:01 pmSFO

    Round-trip total · 1 adult · Taxes included

  4. Mon, Feb 8 – Tue, Feb 9

    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

  5. Mon, Feb 8 – Wed, Feb 10

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  6. Mon, Feb 8 – Wed, Feb 10

    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

  7. Mon, Feb 8 – Thu, Feb 11

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 3m
    LAS · 1h 11m
    6:26 pmSFO

    Round-trip total · 1 adult · Taxes included

  8. Mon, Feb 8 – Thu, Feb 11

    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

  9. Mon, Feb 8 – Fri, Feb 12

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 3m
    LAS · 1h 11m
    6:26 pmSFO

    Round-trip total · 1 adult · Taxes included

  10. Mon, Feb 8 – Fri, Feb 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

  11. Mon, Feb 8 – Sun, Feb 14

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  12. Mon, Feb 8 – Sun, Feb 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

  13. Mon, Feb 8 – Mon, Feb 15

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  14. Mon, Feb 8 – Mon, Feb 15

    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

  15. Mon, Feb 8 – Tue, Feb 16

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    7:26 pmONT
    1h 35m
    Nonstop
    9:01 pmSFO

    Round-trip total · 1 adult · Taxes included

  16. Mon, Feb 8 – Tue, Feb 16

    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

  17. Mon, Feb 8 – Thu, Feb 18

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 3m
    LAS · 1h 11m
    6:26 pmSFO

    Round-trip total · 1 adult · Taxes included

  18. Mon, Feb 8 – Thu, Feb 18

    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

  19. Mon, Feb 8 – Fri, Feb 19

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 3m
    LAS · 1h 11m
    6:26 pmSFO

    Round-trip total · 1 adult · Taxes included

  20. Mon, Feb 8 – Fri, Feb 19

    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. Mon, Feb 8 – Sat, Feb 20

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  22. Mon, Feb 8 – Sat, Feb 20

    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. Mon, Feb 8 – Mon, Feb 22

    Frontier Airlines
    2:22 pmSFO
    4h 9m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    12:01 pmONT
    1h 35m
    Nonstop
    1:36 pmSFO

    Round-trip total · 1 adult · Taxes included

  24. Mon, Feb 8 – Mon, Feb 22

    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

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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 routeFeb 7, 2027 · Return optionsFeb 9, 2027 · 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)
2027-02-08 · one wayUnited AirlinesUA1482Axel-exclusive $125.002026-10-29T01:18:59Z
2027-02-08 · one wayFrontier AirlinesF92486 + F91923Axel-exclusive $100.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-09United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-09Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $157.502026-10-29T01:18:59Z
2027-02-08 → 2027-02-10United AirlinesUA1482 / UA2363Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-10Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $157.502026-10-29T01:18:59Z
2027-02-08 → 2027-02-11United AirlinesUA1482 / UA432Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-11Frontier AirlinesF92486 + F91923 / F94758 + F94157Axel-exclusive $190.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-12United AirlinesUA1482 / UA1375Axel-exclusive $252.632026-10-29T01:18:59Z
2027-02-08 → 2027-02-12Frontier AirlinesF92486 + F91923 / F94758 + F94157Axel-exclusive $204.252026-10-29T01:18:59Z
2027-02-08 → 2027-02-13United AirlinesUA1482 / UA1375Axel-exclusive $252.632026-10-29T01:18:59Z
2027-02-08 → 2027-02-13Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $166.882026-10-29T01:18:59Z
2027-02-08 → 2027-02-14United AirlinesUA1482 / UA1375Axel-exclusive $252.632026-10-29T01:18:59Z
2027-02-08 → 2027-02-14Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $166.882026-10-29T01:18:59Z
2027-02-08 → 2027-02-15United AirlinesUA1482 / UA1375Axel-exclusive $252.632026-10-29T01:18:59Z
2027-02-08 → 2027-02-15Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $166.882026-10-29T01:18:59Z
2027-02-08 → 2027-02-16United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-16Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $157.502026-10-29T01:18:59Z
2027-02-08 → 2027-02-17United AirlinesUA1482 / UA2363Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-17Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $157.502026-10-29T01:18:59Z
2027-02-08 → 2027-02-18United AirlinesUA1482 / UA432Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-18Frontier AirlinesF92486 + F91923 / F94758 + F94157Axel-exclusive $190.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-19United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-19Frontier AirlinesF92486 + F91923 / F94758 + F94157Axel-exclusive $190.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-20United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-20Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $157.502026-10-29T01:18:59Z
2027-02-08 → 2027-02-21United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-21Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $157.502026-10-29T01:18:59Z
2027-02-08 → 2027-02-22United AirlinesUA1482 / UA1375Axel-exclusive $235.002026-10-29T01:18:59Z
2027-02-08 → 2027-02-22Frontier AirlinesF92486 + F91923 / F91159Axel-exclusive $157.502026-10-29T01:18:59Z

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

2027-02-08 · one way · Axel-exclusive $100.00

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.

2027-02-08 · one way · Axel-exclusive $125.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.

2027-02-08 → 2027-02-09 · Axel-exclusive $157.50

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F91159: ONT 2027-02-09 19:26:00 → SFO 2027-02-09 21:01:00; nonstop; 95 minutes. Local airport times.

2027-02-08 → 2027-02-09 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2027-02-09 11:20:00 → SFO 2027-02-09 12:50:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-10 · Axel-exclusive $157.50

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F91159: ONT 2027-02-10 12:01:00 → SFO 2027-02-10 13:36:00; nonstop; 95 minutes. Local airport times.

2027-02-08 → 2027-02-10 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA2363: ONT 2027-02-10 06:00:00 → SFO 2027-02-10 07:30:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-11 · Axel-exclusive $190.00

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F94758 / F94157: ONT 2027-02-11 14:23:00 → SFO 2027-02-11 18:26:00; 1 stop(s) via LAS; 243 minutes. Local airport times.
    • F94758: ONT 2027-02-11 14:23:00 → LAS 2027-02-11 15:31:00; layover at LAS: 71 minutes.
    • F94157: LAS 2027-02-11 16:42:00 → SFO 2027-02-11 18:26:00.

2027-02-08 → 2027-02-11 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA432: ONT 2027-02-11 09:25:00 → SFO 2027-02-11 10:55:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-12 · Axel-exclusive $204.25

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F94758 / F94157: ONT 2027-02-12 14:23:00 → SFO 2027-02-12 18:26:00; 1 stop(s) via LAS; 243 minutes. Local airport times.
    • F94758: ONT 2027-02-12 14:23:00 → LAS 2027-02-12 15:31:00; layover at LAS: 71 minutes.
    • F94157: LAS 2027-02-12 16:42:00 → SFO 2027-02-12 18:26:00.

2027-02-08 → 2027-02-12 · Axel-exclusive $252.63

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2027-02-12 11:20:00 → SFO 2027-02-12 12:50:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-14 · Axel-exclusive $166.88

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F91159: ONT 2027-02-14 12:01:00 → SFO 2027-02-14 13:36:00; nonstop; 95 minutes. Local airport times.

2027-02-08 → 2027-02-14 · Axel-exclusive $252.63

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2027-02-14 11:20:00 → SFO 2027-02-14 12:50:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-15 · Axel-exclusive $166.88

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F91159: ONT 2027-02-15 12:01:00 → SFO 2027-02-15 13:36:00; nonstop; 95 minutes. Local airport times.

2027-02-08 → 2027-02-15 · Axel-exclusive $252.63

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2027-02-15 11:20:00 → SFO 2027-02-15 12:50:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-16 · Axel-exclusive $157.50

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F91159: ONT 2027-02-16 19:26:00 → SFO 2027-02-16 21:01:00; nonstop; 95 minutes. Local airport times.

2027-02-08 → 2027-02-16 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2027-02-16 11:20:00 → SFO 2027-02-16 12:50:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-18 · Axel-exclusive $190.00

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F94758 / F94157: ONT 2027-02-18 14:23:00 → SFO 2027-02-18 18:26:00; 1 stop(s) via LAS; 243 minutes. Local airport times.
    • F94758: ONT 2027-02-18 14:23:00 → LAS 2027-02-18 15:31:00; layover at LAS: 71 minutes.
    • F94157: LAS 2027-02-18 16:42:00 → SFO 2027-02-18 18:26:00.

2027-02-08 → 2027-02-18 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA432: ONT 2027-02-18 09:25:00 → SFO 2027-02-18 10:55:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-19 · Axel-exclusive $190.00

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F94758 / F94157: ONT 2027-02-19 14:23:00 → SFO 2027-02-19 18:26:00; 1 stop(s) via LAS; 243 minutes. Local airport times.
    • F94758: ONT 2027-02-19 14:23:00 → LAS 2027-02-19 15:31:00; layover at LAS: 71 minutes.
    • F94157: LAS 2027-02-19 16:42:00 → SFO 2027-02-19 18:26:00.

2027-02-08 → 2027-02-19 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2027-02-19 11:20:00 → SFO 2027-02-19 12:50:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-20 · Axel-exclusive $157.50

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F91159: ONT 2027-02-20 12:01:00 → SFO 2027-02-20 13:36:00; nonstop; 95 minutes. Local airport times.

2027-02-08 → 2027-02-20 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2027-02-20 11:20:00 → SFO 2027-02-20 12:50:00; nonstop; 90 minutes. Local airport times.

2027-02-08 → 2027-02-22 · Axel-exclusive $157.50

  • Frontier Airlines F92486 / F91923: SFO 2027-02-08 14:22:00 → ONT 2027-02-08 18:31:00; 1 stop(s) via LAS; 249 minutes. Local airport times.
    • F92486: SFO 2027-02-08 14:22:00 → LAS 2027-02-08 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-02-08 17:25:00 → ONT 2027-02-08 18:31:00.
  • Frontier Airlines F91159: ONT 2027-02-22 12:01:00 → SFO 2027-02-22 13:36:00; nonstop; 95 minutes. Local airport times.

2027-02-08 → 2027-02-22 · Axel-exclusive $235.00

  • United Airlines UA1482: SFO 2027-02-08 11:00:00 → ONT 2027-02-08 12:29:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1375: ONT 2027-02-22 11:20:00 → SFO 2027-02-22 12:50:00; nonstop; 90 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: San Francisco (SFO) to Ontario (ONT) · Feb 8, 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 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.