Travel with Axel,
get the best price.

Route overview: Phoenix to Ontario (ONT) flight deals

Phoenix → Ontario

Aug 31, 2027 · choose your return date

PHX → 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.

August 2027

Aug 31, 2027 · One wayFrontier AirlinesUp to 1 stop each way$99.00 Aug 31, 2027 · One waySouthwest AirlinesNonstop$129.00 Aug 31, 2027 – Sep 1, 2027 · 1 nightFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 1, 2027 · 1 nightSouthwest AirlinesNonstop$248.00 Aug 31, 2027 – Sep 2, 2027 · 2 nightsFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 2, 2027 · 2 nightsSouthwest AirlinesNonstop$248.00 Aug 31, 2027 – Sep 3, 2027 · 3 nightsFrontier AirlinesUp to 1 stop each way$202.10 Aug 31, 2027 – Sep 3, 2027 · 3 nightsSouthwest AirlinesNonstop$266.60 Aug 31, 2027 – Sep 4, 2027 · 4 nightsFrontier AirlinesUp to 1 stop each way$202.10 Aug 31, 2027 – Sep 4, 2027 · 4 nightsSouthwest AirlinesNonstop$266.60 Aug 31, 2027 – Sep 5, 2027 · 5 nightsFrontier AirlinesUp to 1 stop each way$202.10 Aug 31, 2027 – Sep 5, 2027 · 5 nightsSouthwest AirlinesNonstop$266.60 Aug 31, 2027 – Sep 6, 2027 · 6 nightsFrontier AirlinesUp to 1 stop each way$202.10 Aug 31, 2027 – Sep 6, 2027 · 6 nightsSouthwest AirlinesNonstop$266.60 Aug 31, 2027 – Sep 7, 2027 · 7 nightsFrontier AirlinesUp to 1 stop each way$202.10 Aug 31, 2027 – Sep 7, 2027 · 7 nightsSouthwest AirlinesNonstop$266.60 Aug 31, 2027 – Sep 8, 2027 · 8 nightsFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 8, 2027 · 8 nightsSouthwest AirlinesNonstop$248.00 Aug 31, 2027 – Sep 9, 2027 · 9 nightsFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 9, 2027 · 9 nightsSouthwest AirlinesNonstop$248.00 Aug 31, 2027 – Sep 10, 2027 · 10 nightsFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 10, 2027 · 10 nightsSouthwest AirlinesNonstop$248.00 Aug 31, 2027 – Sep 11, 2027 · 11 nightsFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 11, 2027 · 11 nightsSouthwest AirlinesNonstop$248.00 Aug 31, 2027 – Sep 12, 2027 · 12 nightsFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 12, 2027 · 12 nightsSouthwest AirlinesNonstop$248.00 Aug 31, 2027 – Sep 13, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 13, 2027 · 13 nightsSouthwest AirlinesNonstop$248.00 Aug 31, 2027 – Sep 14, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$188.00 Aug 31, 2027 – Sep 14, 2027 · 14 nightsSouthwest AirlinesNonstop$248.00

Flights for your trip

  1. Tue, Aug 31 · One way

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Tue, Aug 31 · One way

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Tue, Aug 31 – Wed, Sep 1

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Tue, Aug 31 – Wed, Sep 1

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    2:00 pmONT
    1h 15m
    Nonstop
    3:15 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Tue, Aug 31 – Thu, Sep 2

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Tue, Aug 31 – Thu, Sep 2

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    6:45 amONT
    1h 20m
    Nonstop
    8:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Tue, Aug 31 – Fri, Sep 3

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Tue, Aug 31 – Fri, Sep 3

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    6:45 amONT
    1h 20m
    Nonstop
    8:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Tue, Aug 31 – Sat, Sep 4

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Tue, Aug 31 – Sat, Sep 4

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    6:45 amONT
    1h 20m
    Nonstop
    8:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Tue, Aug 31 – Mon, Sep 6

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Tue, Aug 31 – Mon, Sep 6

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    6:45 amONT
    1h 20m
    Nonstop
    8:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Tue, Aug 31 – Tue, Sep 7

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Tue, Aug 31 – Tue, Sep 7

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    9:50 amONT
    1h 15m
    Nonstop
    11:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Tue, Aug 31 – Wed, Sep 8

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Tue, Aug 31 – Wed, Sep 8

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    2:00 pmONT
    1h 15m
    Nonstop
    3:15 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Tue, Aug 31 – Fri, Sep 10

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Tue, Aug 31 – Fri, Sep 10

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    6:45 amONT
    1h 20m
    Nonstop
    8:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Tue, Aug 31 – Sat, Sep 11

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Tue, Aug 31 – Sat, Sep 11

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    6:45 amONT
    1h 20m
    Nonstop
    8:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Tue, Aug 31 – Sun, Sep 12

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Tue, Aug 31 – Sun, Sep 12

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    6:45 amONT
    1h 20m
    Nonstop
    8:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Tue, Aug 31 – Tue, Sep 14

    Frontier Airlines
    8:23 amPHX
    4h 28m
    LAS · 2h 8m
    12:51 pmONT
    Frontier Airlines
    2:23 pmONT
    4h 25m
    LAS · 1h 59m
    6:48 pmPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Tue, Aug 31 – Tue, Sep 14

    Southwest Airlines
    4:05 pmPHX
    1h 15m
    Nonstop
    5:20 pmONT
    Southwest Airlines
    9:50 amONT
    1h 15m
    Nonstop
    11:05 amPHX

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

PHX ⇄ ONT

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

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

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

Explore this route

All dates for this routeAug 30, 2027 · Return optionsSep 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)
2027-08-31 · one waySouthwest AirlinesWN4800Axel-exclusive $129.002026-10-29T01:56:33Z
2027-08-31 · one wayFrontier AirlinesF91019 + F91357Axel-exclusive $99.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-01Southwest AirlinesWN4800 / WN1533Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-01Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-02Southwest AirlinesWN4800 / WN4880Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-02Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-03Southwest AirlinesWN4800 / WN4880Axel-exclusive $266.602026-10-29T01:56:33Z
2027-08-31 → 2027-09-03Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $202.102026-10-29T01:56:33Z
2027-08-31 → 2027-09-04Southwest AirlinesWN4800 / WN4880Axel-exclusive $266.602026-10-29T01:56:33Z
2027-08-31 → 2027-09-04Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $202.102026-10-29T01:56:33Z
2027-08-31 → 2027-09-05Southwest AirlinesWN4800 / WN4880Axel-exclusive $266.602026-10-29T01:56:33Z
2027-08-31 → 2027-09-05Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $202.102026-10-29T01:56:33Z
2027-08-31 → 2027-09-06Southwest AirlinesWN4800 / WN4880Axel-exclusive $266.602026-10-29T01:56:33Z
2027-08-31 → 2027-09-06Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $202.102026-10-29T01:56:33Z
2027-08-31 → 2027-09-07Southwest AirlinesWN4800 / WN3317Axel-exclusive $266.602026-10-29T01:56:33Z
2027-08-31 → 2027-09-07Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $202.102026-10-29T01:56:33Z
2027-08-31 → 2027-09-08Southwest AirlinesWN4800 / WN1533Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-08Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-09Southwest AirlinesWN4800 / WN4880Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-09Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-10Southwest AirlinesWN4800 / WN4880Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-10Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-11Southwest AirlinesWN4800 / WN4880Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-11Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-12Southwest AirlinesWN4800 / WN4880Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-12Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-13Southwest AirlinesWN4800 / WN4880Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-13Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-14Southwest AirlinesWN4800 / WN3317Axel-exclusive $248.002026-10-29T01:56:33Z
2027-08-31 → 2027-09-14Frontier AirlinesF91019 + F91357 / F94758 + F91896Axel-exclusive $188.002026-10-29T01:56:33Z

Route overview: Phoenix to Ontario (ONT) flight deals

2027-08-31 · one way · Axel-exclusive $99.00

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.

2027-08-31 · one way · Axel-exclusive $129.00

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.

2027-08-31 → 2027-09-01 · Axel-exclusive $188.00

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-01 14:23:00 → PHX 2027-09-01 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-01 14:23:00 → LAS 2027-09-01 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-01 17:30:00 → PHX 2027-09-01 18:48:00.

2027-08-31 → 2027-09-01 · Axel-exclusive $248.00

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN1533: ONT 2027-09-01 14:00:00 → PHX 2027-09-01 15:15:00; nonstop; 75 minutes. Local airport times.

2027-08-31 → 2027-09-02 · Axel-exclusive $188.00

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-02 14:23:00 → PHX 2027-09-02 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-02 14:23:00 → LAS 2027-09-02 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-02 17:30:00 → PHX 2027-09-02 18:48:00.

2027-08-31 → 2027-09-02 · Axel-exclusive $248.00

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN4880: ONT 2027-09-02 06:45:00 → PHX 2027-09-02 08:05:00; nonstop; 80 minutes. Local airport times.

2027-08-31 → 2027-09-03 · Axel-exclusive $202.10

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-03 14:23:00 → PHX 2027-09-03 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-03 14:23:00 → LAS 2027-09-03 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-03 17:30:00 → PHX 2027-09-03 18:48:00.

2027-08-31 → 2027-09-03 · Axel-exclusive $266.60

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN4880: ONT 2027-09-03 06:45:00 → PHX 2027-09-03 08:05:00; nonstop; 80 minutes. Local airport times.

2027-08-31 → 2027-09-04 · Axel-exclusive $202.10

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-04 14:23:00 → PHX 2027-09-04 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-04 14:23:00 → LAS 2027-09-04 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-04 17:30:00 → PHX 2027-09-04 18:48:00.

2027-08-31 → 2027-09-04 · Axel-exclusive $266.60

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN4880: ONT 2027-09-04 06:45:00 → PHX 2027-09-04 08:05:00; nonstop; 80 minutes. Local airport times.

2027-08-31 → 2027-09-06 · Axel-exclusive $202.10

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-06 14:23:00 → PHX 2027-09-06 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-06 14:23:00 → LAS 2027-09-06 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-06 17:30:00 → PHX 2027-09-06 18:48:00.

2027-08-31 → 2027-09-06 · Axel-exclusive $266.60

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN4880: ONT 2027-09-06 06:45:00 → PHX 2027-09-06 08:05:00; nonstop; 80 minutes. Local airport times.

2027-08-31 → 2027-09-07 · Axel-exclusive $202.10

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-07 14:23:00 → PHX 2027-09-07 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-07 14:23:00 → LAS 2027-09-07 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-07 17:30:00 → PHX 2027-09-07 18:48:00.

2027-08-31 → 2027-09-07 · Axel-exclusive $266.60

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3317: ONT 2027-09-07 09:50:00 → PHX 2027-09-07 11:05:00; nonstop; 75 minutes. Local airport times.

2027-08-31 → 2027-09-08 · Axel-exclusive $188.00

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-08 14:23:00 → PHX 2027-09-08 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-08 14:23:00 → LAS 2027-09-08 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-08 17:30:00 → PHX 2027-09-08 18:48:00.

2027-08-31 → 2027-09-08 · Axel-exclusive $248.00

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN1533: ONT 2027-09-08 14:00:00 → PHX 2027-09-08 15:15:00; nonstop; 75 minutes. Local airport times.

2027-08-31 → 2027-09-10 · Axel-exclusive $188.00

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-10 14:23:00 → PHX 2027-09-10 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-10 14:23:00 → LAS 2027-09-10 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-10 17:30:00 → PHX 2027-09-10 18:48:00.

2027-08-31 → 2027-09-10 · Axel-exclusive $248.00

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN4880: ONT 2027-09-10 06:45:00 → PHX 2027-09-10 08:05:00; nonstop; 80 minutes. Local airport times.

2027-08-31 → 2027-09-11 · Axel-exclusive $188.00

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-11 14:23:00 → PHX 2027-09-11 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-11 14:23:00 → LAS 2027-09-11 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-11 17:30:00 → PHX 2027-09-11 18:48:00.

2027-08-31 → 2027-09-11 · Axel-exclusive $248.00

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN4880: ONT 2027-09-11 06:45:00 → PHX 2027-09-11 08:05:00; nonstop; 80 minutes. Local airport times.

2027-08-31 → 2027-09-12 · Axel-exclusive $188.00

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-12 14:23:00 → PHX 2027-09-12 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-12 14:23:00 → LAS 2027-09-12 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-12 17:30:00 → PHX 2027-09-12 18:48:00.

2027-08-31 → 2027-09-12 · Axel-exclusive $248.00

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN4880: ONT 2027-09-12 06:45:00 → PHX 2027-09-12 08:05:00; nonstop; 80 minutes. Local airport times.

2027-08-31 → 2027-09-14 · Axel-exclusive $188.00

  • Frontier Airlines F91019 / F91357: PHX 2027-08-31 08:23:00 → ONT 2027-08-31 12:51:00; 1 stop(s) via LAS; 268 minutes. Local airport times.
    • F91019: PHX 2027-08-31 08:23:00 → LAS 2027-08-31 09:37:00; layover at LAS: 128 minutes.
    • F91357: LAS 2027-08-31 11:45:00 → ONT 2027-08-31 12:51:00.
  • Frontier Airlines F94758 / F91896: ONT 2027-09-14 14:23:00 → PHX 2027-09-14 18:48:00; 1 stop(s) via LAS; 265 minutes. Local airport times.
    • F94758: ONT 2027-09-14 14:23:00 → LAS 2027-09-14 15:31:00; layover at LAS: 119 minutes.
    • F91896: LAS 2027-09-14 17:30:00 → PHX 2027-09-14 18:48:00.

2027-08-31 → 2027-09-14 · Axel-exclusive $248.00

  • Southwest Airlines WN4800: PHX 2027-08-31 16:05:00 → ONT 2027-08-31 17:20:00; nonstop; 75 minutes. Local airport times.
  • Southwest Airlines WN3317: ONT 2027-09-14 09:50:00 → PHX 2027-09-14 11:05:00; nonstop; 75 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Phoenix (PHX) to Ontario (ONT) · Aug 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 Phoenix 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. 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.