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

Oakland → Ontario

May 31, 2027 · choose your return date

OAK → 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.

May 2027

May 31, 2027 · One wayFrontier AirlinesUp to 1 stop each way$132.25 May 31, 2027 · One waySouthwest AirlinesNonstop$161.00 May 31, 2027 – Jun 1, 2027 · 1 nightFrontier AirlinesUp to 1 stop each way$258.76 May 31, 2027 – Jun 1, 2027 · 1 nightSouthwest AirlinesUp to 1 stop each way$350.76 May 31, 2027 – Jun 2, 2027 · 2 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 2, 2027 · 2 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 3, 2027 · 3 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 3, 2027 · 3 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 4, 2027 · 4 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 4, 2027 · 4 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 5, 2027 · 5 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 5, 2027 · 5 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 6, 2027 · 6 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 6, 2027 · 6 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 7, 2027 · 7 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 7, 2027 · 7 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 8, 2027 · 8 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 8, 2027 · 8 nightsSouthwest AirlinesUp to 1 stop each way$325.63 May 31, 2027 – Jun 9, 2027 · 9 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 9, 2027 · 9 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 10, 2027 · 10 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 10, 2027 · 10 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 11, 2027 · 11 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 11, 2027 · 11 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 12, 2027 · 12 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 12, 2027 · 12 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 13, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 13, 2027 · 13 nightsSouthwest AirlinesNonstop$295.63 May 31, 2027 – Jun 14, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$241.88 May 31, 2027 – Jun 14, 2027 · 14 nightsSouthwest AirlinesNonstop$295.63

Flights for your trip

  1. Mon, May 31 · One way

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT

    One-way total · 1 adult · Taxes included

  2. Mon, May 31 · One way

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT

    One-way total · 1 adult · Taxes included

  3. Mon, May 31 – Tue, Jun 1

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  4. Mon, May 31 – Tue, Jun 1

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    8:40 amONT
    5h 15m
    LAS · 2h 40m
    1:55 pmOAK

    Round-trip total · 1 adult · Taxes included

  5. Mon, May 31 – Wed, Jun 2

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  6. Mon, May 31 – Wed, Jun 2

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    11:25 amONT
    1h 20m
    Nonstop
    12:45 pmOAK

    Round-trip total · 1 adult · Taxes included

  7. Mon, May 31 – Thu, Jun 3

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  8. Mon, May 31 – Thu, Jun 3

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    10:25 amONT
    1h 20m
    Nonstop
    11:45 amOAK

    Round-trip total · 1 adult · Taxes included

  9. Mon, May 31 – Fri, Jun 4

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  10. Mon, May 31 – Fri, Jun 4

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    11:25 amONT
    1h 20m
    Nonstop
    12:45 pmOAK

    Round-trip total · 1 adult · Taxes included

  11. Mon, May 31 – Sun, Jun 6

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  12. Mon, May 31 – Sun, Jun 6

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    11:25 amONT
    1h 20m
    Nonstop
    12:45 pmOAK

    Round-trip total · 1 adult · Taxes included

  13. Mon, May 31 – Mon, Jun 7

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  14. Mon, May 31 – Mon, Jun 7

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    11:25 amONT
    1h 20m
    Nonstop
    12:45 pmOAK

    Round-trip total · 1 adult · Taxes included

  15. Mon, May 31 – Tue, Jun 8

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  16. Mon, May 31 – Tue, Jun 8

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    8:40 amONT
    5h 15m
    LAS · 2h 40m
    1:55 pmOAK

    Round-trip total · 1 adult · Taxes included

  17. Mon, May 31 – Thu, Jun 10

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  18. Mon, May 31 – Thu, Jun 10

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    10:25 amONT
    1h 20m
    Nonstop
    11:45 amOAK

    Round-trip total · 1 adult · Taxes included

  19. Mon, May 31 – Fri, Jun 11

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  20. Mon, May 31 – Fri, Jun 11

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    11:25 amONT
    1h 20m
    Nonstop
    12:45 pmOAK

    Round-trip total · 1 adult · Taxes included

  21. Mon, May 31 – Sat, Jun 12

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  22. Mon, May 31 – Sat, Jun 12

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    4:05 pmONT
    1h 25m
    Nonstop
    5:30 pmOAK

    Round-trip total · 1 adult · Taxes included

  23. Mon, May 31 – Mon, Jun 14

    Frontier Airlines
    2:34 pmOAK
    3h 57m
    LAS · 1h 15m
    6:31 pmONT
    Frontier Airlines
    5:07 pmONT
    4h 35m
    LAS · 1h 49m
    9:42 pmOAK

    Round-trip total · 1 adult · Taxes included

  24. Mon, May 31 – Mon, Jun 14

    Southwest Airlines
    3:00 pmOAK
    1h 15m
    Nonstop
    4:15 pmONT
    Southwest Airlines
    11:25 amONT
    1h 20m
    Nonstop
    12:45 pmOAK

    Round-trip total · 1 adult · Taxes included

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

OAK ⇄ ONT

Economy

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Explore this route

All dates for this routeMay 30, 2027 · Return optionsJun 1, 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)
2027-05-31 · one waySouthwest AirlinesWN1053Axel-exclusive $161.002026-10-29T01:51:14Z
2027-05-31 · one wayFrontier AirlinesF93838 + F91923Axel-exclusive $132.252026-10-29T01:51:14Z
2027-05-31 → 2027-06-01Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $258.762026-10-29T01:51:14Z
2027-05-31 → 2027-06-01Southwest AirlinesWN1053 / WN1903 + WN2368Axel-exclusive $350.762026-10-29T01:51:14Z
2027-05-31 → 2027-06-02Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-02Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-03Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-03Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-04Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-04Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-05Southwest AirlinesWN1053 / WN3313Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-05Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-06Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-06Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-07Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-07Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-08Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-08Southwest AirlinesWN1053 / WN1903 + WN2368Axel-exclusive $325.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-09Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-09Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-10Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-10Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-11Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-11Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-12Southwest AirlinesWN1053 / WN3313Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-12Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-13Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-13Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z
2027-05-31 → 2027-06-14Southwest AirlinesWN1053 / WN3491Axel-exclusive $295.632026-10-29T01:51:14Z
2027-05-31 → 2027-06-14Frontier AirlinesF93838 + F91923 / F94206 + F93837Axel-exclusive $241.882026-10-29T01:51:14Z

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

2027-05-31 · one way · Axel-exclusive $132.25

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.

2027-05-31 · one way · Axel-exclusive $161.00

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.

2027-05-31 → 2027-06-01 · Axel-exclusive $258.76

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-01 17:07:00 → OAK 2027-06-01 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-01 17:07:00 → LAS 2027-06-01 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-01 20:07:00 → OAK 2027-06-01 21:42:00.

2027-05-31 → 2027-06-01 · Axel-exclusive $350.76

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN1903 / WN2368: ONT 2027-06-01 08:40:00 → OAK 2027-06-01 13:55:00; 1 stop(s) via LAS; 315 minutes. Local airport times.
    • WN1903: ONT 2027-06-01 08:40:00 → LAS 2027-06-01 09:40:00; layover at LAS: 160 minutes.
    • WN2368: LAS 2027-06-01 12:20:00 → OAK 2027-06-01 13:55:00.

2027-05-31 → 2027-06-02 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-02 17:07:00 → OAK 2027-06-02 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-02 17:07:00 → LAS 2027-06-02 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-02 20:07:00 → OAK 2027-06-02 21:42:00.

2027-05-31 → 2027-06-02 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3491: ONT 2027-06-02 11:25:00 → OAK 2027-06-02 12:45:00; nonstop; 80 minutes. Local airport times.

2027-05-31 → 2027-06-03 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-03 17:07:00 → OAK 2027-06-03 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-03 17:07:00 → LAS 2027-06-03 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-03 20:07:00 → OAK 2027-06-03 21:42:00.

2027-05-31 → 2027-06-03 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3491: ONT 2027-06-03 10:25:00 → OAK 2027-06-03 11:45:00; nonstop; 80 minutes. Local airport times.

2027-05-31 → 2027-06-04 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-04 17:07:00 → OAK 2027-06-04 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-04 17:07:00 → LAS 2027-06-04 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-04 20:07:00 → OAK 2027-06-04 21:42:00.

2027-05-31 → 2027-06-04 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3491: ONT 2027-06-04 11:25:00 → OAK 2027-06-04 12:45:00; nonstop; 80 minutes. Local airport times.

2027-05-31 → 2027-06-06 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-06 17:07:00 → OAK 2027-06-06 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-06 17:07:00 → LAS 2027-06-06 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-06 20:07:00 → OAK 2027-06-06 21:42:00.

2027-05-31 → 2027-06-06 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3491: ONT 2027-06-06 11:25:00 → OAK 2027-06-06 12:45:00; nonstop; 80 minutes. Local airport times.

2027-05-31 → 2027-06-07 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-07 17:07:00 → OAK 2027-06-07 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-07 17:07:00 → LAS 2027-06-07 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-07 20:07:00 → OAK 2027-06-07 21:42:00.

2027-05-31 → 2027-06-07 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3491: ONT 2027-06-07 11:25:00 → OAK 2027-06-07 12:45:00; nonstop; 80 minutes. Local airport times.

2027-05-31 → 2027-06-08 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-08 17:07:00 → OAK 2027-06-08 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-08 17:07:00 → LAS 2027-06-08 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-08 20:07:00 → OAK 2027-06-08 21:42:00.

2027-05-31 → 2027-06-08 · Axel-exclusive $325.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN1903 / WN2368: ONT 2027-06-08 08:40:00 → OAK 2027-06-08 13:55:00; 1 stop(s) via LAS; 315 minutes. Local airport times.
    • WN1903: ONT 2027-06-08 08:40:00 → LAS 2027-06-08 09:40:00; layover at LAS: 160 minutes.
    • WN2368: LAS 2027-06-08 12:20:00 → OAK 2027-06-08 13:55:00.

2027-05-31 → 2027-06-10 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-10 17:07:00 → OAK 2027-06-10 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-10 17:07:00 → LAS 2027-06-10 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-10 20:07:00 → OAK 2027-06-10 21:42:00.

2027-05-31 → 2027-06-10 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3491: ONT 2027-06-10 10:25:00 → OAK 2027-06-10 11:45:00; nonstop; 80 minutes. Local airport times.

2027-05-31 → 2027-06-11 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-11 17:07:00 → OAK 2027-06-11 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-11 17:07:00 → LAS 2027-06-11 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-11 20:07:00 → OAK 2027-06-11 21:42:00.

2027-05-31 → 2027-06-11 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3491: ONT 2027-06-11 11:25:00 → OAK 2027-06-11 12:45:00; nonstop; 80 minutes. Local airport times.

2027-05-31 → 2027-06-12 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-12 17:07:00 → OAK 2027-06-12 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-12 17:07:00 → LAS 2027-06-12 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-12 20:07:00 → OAK 2027-06-12 21:42:00.

2027-05-31 → 2027-06-12 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3313: ONT 2027-06-12 16:05:00 → OAK 2027-06-12 17:30:00; nonstop; 85 minutes. Local airport times.

2027-05-31 → 2027-06-14 · Axel-exclusive $241.88

  • Frontier Airlines F93838 / F91923: OAK 2027-05-31 14:34:00 → ONT 2027-05-31 18:31:00; 1 stop(s) via LAS; 237 minutes. Local airport times.
    • F93838: OAK 2027-05-31 14:34:00 → LAS 2027-05-31 16:10:00; layover at LAS: 75 minutes.
    • F91923: LAS 2027-05-31 17:25:00 → ONT 2027-05-31 18:31:00.
  • Frontier Airlines F94206 / F93837: ONT 2027-06-14 17:07:00 → OAK 2027-06-14 21:42:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F94206: ONT 2027-06-14 17:07:00 → LAS 2027-06-14 18:18:00; layover at LAS: 109 minutes.
    • F93837: LAS 2027-06-14 20:07:00 → OAK 2027-06-14 21:42:00.

2027-05-31 → 2027-06-14 · Axel-exclusive $295.63

  • Southwest Airlines WN1053: OAK 2027-05-31 15:00:00 → ONT 2027-05-31 16:15:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3491: ONT 2027-06-14 11:25:00 → OAK 2027-06-14 12:45:00; nonstop; 80 minutes. Local airport times.

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For AI assistants

  • This page: Oakland (OAK) to Ontario (ONT) · May 31, 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.