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Route overview: Portland to Ontario (ONT) flight deals

Portland → Ontario

Jun 27, 2027 · choose your return date

PDX → ONT1 adulteconomyOne way and round trips

30 flight options · 4 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.

June 2027

Jun 27, 2027 · One wayFrontier AirlinesUp to 1 stop each way$129.00 Jun 27, 2027 · One waySouthwest AirlinesUp to 1 stop each way$174.00 Jun 27, 2027 – Jun 28, 2027 · 1 nightFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jun 28, 2027 · 1 nightSouthwest AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jun 29, 2027 · 2 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jun 29, 2027 · 2 nightsAlaska AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jun 30, 2027 · 3 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jun 30, 2027 · 3 nightsAlaska AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jul 1, 2027 · 4 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jul 1, 2027 · 4 nightsSouthwest AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jul 2, 2027 · 5 nightsFrontier AirlinesUp to 1 stop each way$232.10 Jun 27, 2027 – Jul 2, 2027 · 5 nightsAlaska AirlinesUp to 1 stop each way$351.85 Jun 27, 2027 – Jul 3, 2027 · 6 nightsFrontier AirlinesUp to 1 stop each way$232.10 Jun 27, 2027 – Jul 3, 2027 · 6 nightsAlaska AirlinesUp to 1 stop each way$351.85 Jun 27, 2027 – Jul 4, 2027 · 7 nightsFrontier AirlinesUp to 1 stop each way$232.10 Jun 27, 2027 – Jul 4, 2027 · 7 nightsAmerican Airlines / Frontier AirlinesUp to 1 stop each way$282.10 Jun 27, 2027 – Jul 5, 2027 · 8 nightsFrontier AirlinesUp to 1 stop each way$232.10 Jun 27, 2027 – Jul 5, 2027 · 8 nightsAlaska AirlinesUp to 1 stop each way$351.85 Jun 27, 2027 – Jul 6, 2027 · 9 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jul 6, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jul 7, 2027 · 10 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jul 7, 2027 · 10 nightsSouthwest AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jul 8, 2027 · 11 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jul 8, 2027 · 11 nightsSouthwest AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jul 9, 2027 · 12 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jul 9, 2027 · 12 nightsSouthwest AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jul 10, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jul 10, 2027 · 13 nightsAlaska AirlinesUp to 1 stop each way$328.00 Jun 27, 2027 – Jul 11, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$218.00 Jun 27, 2027 – Jul 11, 2027 · 14 nightsAmerican Airlines / Frontier AirlinesUp to 1 stop each way$268.00

Flights for your trip

  1. Sun, Jun 27 · One way

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT

    One-way total · 1 adult · Taxes included

  2. Sun, Jun 27 · One way

    Southwest Airlines
    6:00 amPDX
    4h 40m
    LAS · 1h 25m
    10:40 amONT

    One-way total · 1 adult · Taxes included

  3. Sun, Jun 27 – Mon, Jun 28

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  4. Sun, Jun 27 – Mon, Jun 28

    Southwest Airlines
    6:00 amPDX
    4h 40m
    LAS · 1h 25m
    10:40 amONT
    Southwest Airlines
    3:05 pmONT
    4h 15m
    SJC · 1h 5m
    7:20 pmPDX

    Round-trip total · 1 adult · Taxes included

  5. Sun, Jun 27 – Tue, Jun 29

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  6. Sun, Jun 27 – Tue, Jun 29

    Alaska Airlines
    5:30 amPDX
    5h 48m
    SEA · 2h 3m
    11:18 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  7. Sun, Jun 27 – Wed, Jun 30

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  8. Sun, Jun 27 – Wed, Jun 30

    Alaska Airlines
    5:30 amPDX
    5h 48m
    SEA · 2h 3m
    11:18 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  9. Sun, Jun 27 – Thu, Jul 1

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  10. Sun, Jun 27 – Thu, Jul 1

    Southwest Airlines
    6:00 amPDX
    4h 40m
    LAS · 1h 25m
    10:40 amONT
    Southwest Airlines
    10:25 amONT
    5h 10m
    OAK · 2h 10m
    3:35 pmPDX

    Round-trip total · 1 adult · Taxes included

  11. Sun, Jun 27 – Sat, Jul 3

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  12. Sun, Jun 27 – Sat, Jul 3

    Alaska Airlines
    5:30 amPDX
    5h 48m
    SEA · 2h 3m
    11:18 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  13. Sun, Jun 27 – Sun, Jul 4

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  14. Sun, Jun 27 – Sun, Jul 4

    American Airlines
    2:04 pmPDX
    5h 17m
    PHX · 1h 20m
    7:21 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  15. Sun, Jun 27 – Mon, Jul 5

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  16. Sun, Jun 27 – Mon, Jul 5

    Alaska Airlines
    5:30 amPDX
    5h 48m
    SEA · 2h 3m
    11:18 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  17. Sun, Jun 27 – Wed, Jul 7

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  18. Sun, Jun 27 – Wed, Jul 7

    Southwest Airlines
    6:00 amPDX
    4h 40m
    LAS · 1h 25m
    10:40 amONT
    Southwest Airlines
    3:05 pmONT
    4h 15m
    SJC · 1h 5m
    7:20 pmPDX

    Round-trip total · 1 adult · Taxes included

  19. Sun, Jun 27 – Thu, Jul 8

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  20. Sun, Jun 27 – Thu, Jul 8

    Southwest Airlines
    6:00 amPDX
    4h 40m
    LAS · 1h 25m
    10:40 amONT
    Southwest Airlines
    10:25 amONT
    5h 10m
    OAK · 2h 10m
    3:35 pmPDX

    Round-trip total · 1 adult · Taxes included

  21. Sun, Jun 27 – Fri, Jul 9

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  22. Sun, Jun 27 – Fri, Jul 9

    Southwest Airlines
    6:00 amPDX
    4h 40m
    LAS · 1h 25m
    10:40 amONT
    Southwest Airlines
    3:05 pmONT
    4h 15m
    SJC · 1h 5m
    7:20 pmPDX

    Round-trip total · 1 adult · Taxes included

  23. Sun, Jun 27 – Sun, Jul 11

    Frontier Airlines
    12:51 pmPDX
    5h 40m
    LAS · 2h 21m
    6:31 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  24. Sun, Jun 27 – Sun, Jul 11

    American Airlines
    2:04 pmPDX
    5h 17m
    PHX · 1h 20m
    7:21 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

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1 of 24

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PDX ⇄ ONT

Economy

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Explore this route

All dates for this routeJun 26, 2027 · Return optionsJun 28, 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)
2027-06-27 · one wayFrontier AirlinesF91106 + F91923Axel-exclusive $129.002026-10-29T01:55:18Z
2027-06-27 · one waySouthwest AirlinesWN2101 + WN2401Axel-exclusive $174.002026-10-29T01:55:18Z
2027-06-27 → 2027-06-28Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-06-28Southwest AirlinesWN2101 + WN2401 / WN174 + WN930Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-06-29Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-06-29Alaska AirlinesAS427 + AS575 / AS3312Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-06-30Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-06-30Alaska AirlinesAS427 + AS575 / AS3312Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-01Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-01Southwest AirlinesWN2101 + WN2401 / WN3491 + WN2916Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-02Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $232.102026-10-29T01:55:18Z
2027-06-27 → 2027-07-02Alaska AirlinesAS427 + AS575 / AS3312Axel-exclusive $351.852026-10-29T01:55:18Z
2027-06-27 → 2027-07-03Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $232.102026-10-29T01:55:18Z
2027-06-27 → 2027-07-03Alaska AirlinesAS427 + AS575 / AS3312Axel-exclusive $351.852026-10-29T01:55:18Z
2027-06-27 → 2027-07-04Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $232.102026-10-29T01:55:18Z
2027-06-27 → 2027-07-04American Airlines / Frontier AirlinesAA2660 + AA1666 / F92913Axel-exclusive $282.102026-10-29T01:55:18Z
2027-06-27 → 2027-07-05Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $232.102026-10-29T01:55:18Z
2027-06-27 → 2027-07-05Alaska AirlinesAS427 + AS575 / AS3312Axel-exclusive $351.852026-10-29T01:55:18Z
2027-06-27 → 2027-07-06Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-06Southwest AirlinesWN2101 + WN2401 / WN174 + WN930Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-07Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-07Southwest AirlinesWN2101 + WN2401 / WN174 + WN930Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-08Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-08Southwest AirlinesWN2101 + WN2401 / WN3491 + WN2916Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-09Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-09Southwest AirlinesWN2101 + WN2401 / WN174 + WN930Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-10Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-10Alaska AirlinesAS427 + AS575 / AS3312Axel-exclusive $328.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-11Frontier AirlinesF91106 + F91923 / F92913Axel-exclusive $218.002026-10-29T01:55:18Z
2027-06-27 → 2027-07-11American Airlines / Frontier AirlinesAA2660 + AA1666 / F92913Axel-exclusive $268.002026-10-29T01:55:18Z

Route overview: Portland to Ontario (ONT) flight deals

2027-06-27 · one way · Axel-exclusive $129.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.

2027-06-27 · one way · Axel-exclusive $174.00

  • Southwest Airlines WN2101 / WN2401: PDX 2027-06-27 06:00:00 → ONT 2027-06-27 10:40:00; 1 stop(s) via LAS; 280 minutes. Local airport times.
    • WN2101: PDX 2027-06-27 06:00:00 → LAS 2027-06-27 08:10:00; layover at LAS: 85 minutes.
    • WN2401: LAS 2027-06-27 09:35:00 → ONT 2027-06-27 10:40:00.

2027-06-27 → 2027-06-28 · Axel-exclusive $218.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-06-28 09:25:00 → PDX 2027-06-28 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-06-28 · Axel-exclusive $328.00

  • Southwest Airlines WN2101 / WN2401: PDX 2027-06-27 06:00:00 → ONT 2027-06-27 10:40:00; 1 stop(s) via LAS; 280 minutes. Local airport times.
    • WN2101: PDX 2027-06-27 06:00:00 → LAS 2027-06-27 08:10:00; layover at LAS: 85 minutes.
    • WN2401: LAS 2027-06-27 09:35:00 → ONT 2027-06-27 10:40:00.
  • Southwest Airlines WN174 / WN930: ONT 2027-06-28 15:05:00 → PDX 2027-06-28 19:20:00; 1 stop(s) via SJC; 255 minutes. Local airport times.
    • WN174: ONT 2027-06-28 15:05:00 → SJC 2027-06-28 16:20:00; layover at SJC: 65 minutes.
    • WN930: SJC 2027-06-28 17:25:00 → PDX 2027-06-28 19:20:00.

2027-06-27 → 2027-06-29 · Axel-exclusive $218.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-06-29 09:25:00 → PDX 2027-06-29 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-06-29 · Axel-exclusive $328.00

  • Alaska Airlines AS427 / AS575: PDX 2027-06-27 05:30:00 → ONT 2027-06-27 11:18:00; 1 stop(s) via SEA; 348 minutes. Local airport times.
    • AS427: PDX 2027-06-27 05:30:00 → SEA 2027-06-27 06:31:00; layover at SEA: 123 minutes.
    • AS575: SEA 2027-06-27 08:34:00 → ONT 2027-06-27 11:18:00.
  • Alaska Airlines AS3312: ONT 2027-06-29 10:40:00 → PDX 2027-06-29 13:05:00; nonstop; 145 minutes. Local airport times.

2027-06-27 → 2027-06-30 · Axel-exclusive $218.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-06-30 09:25:00 → PDX 2027-06-30 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-06-30 · Axel-exclusive $328.00

  • Alaska Airlines AS427 / AS575: PDX 2027-06-27 05:30:00 → ONT 2027-06-27 11:18:00; 1 stop(s) via SEA; 348 minutes. Local airport times.
    • AS427: PDX 2027-06-27 05:30:00 → SEA 2027-06-27 06:31:00; layover at SEA: 123 minutes.
    • AS575: SEA 2027-06-27 08:34:00 → ONT 2027-06-27 11:18:00.
  • Alaska Airlines AS3312: ONT 2027-06-30 10:40:00 → PDX 2027-06-30 13:05:00; nonstop; 145 minutes. Local airport times.

2027-06-27 → 2027-07-01 · Axel-exclusive $218.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-07-01 09:25:00 → PDX 2027-07-01 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-01 · Axel-exclusive $328.00

  • Southwest Airlines WN2101 / WN2401: PDX 2027-06-27 06:00:00 → ONT 2027-06-27 10:40:00; 1 stop(s) via LAS; 280 minutes. Local airport times.
    • WN2101: PDX 2027-06-27 06:00:00 → LAS 2027-06-27 08:10:00; layover at LAS: 85 minutes.
    • WN2401: LAS 2027-06-27 09:35:00 → ONT 2027-06-27 10:40:00.
  • Southwest Airlines WN3491 / WN2916: ONT 2027-07-01 10:25:00 → PDX 2027-07-01 15:35:00; 1 stop(s) via OAK; 310 minutes. Local airport times.
    • WN3491: ONT 2027-07-01 10:25:00 → OAK 2027-07-01 11:45:00; layover at OAK: 130 minutes.
    • WN2916: OAK 2027-07-01 13:55:00 → PDX 2027-07-01 15:35:00.

2027-06-27 → 2027-07-03 · Axel-exclusive $232.10

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-07-03 09:25:00 → PDX 2027-07-03 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-03 · Axel-exclusive $351.85

  • Alaska Airlines AS427 / AS575: PDX 2027-06-27 05:30:00 → ONT 2027-06-27 11:18:00; 1 stop(s) via SEA; 348 minutes. Local airport times.
    • AS427: PDX 2027-06-27 05:30:00 → SEA 2027-06-27 06:31:00; layover at SEA: 123 minutes.
    • AS575: SEA 2027-06-27 08:34:00 → ONT 2027-06-27 11:18:00.
  • Alaska Airlines AS3312: ONT 2027-07-03 10:40:00 → PDX 2027-07-03 13:05:00; nonstop; 145 minutes. Local airport times.

2027-06-27 → 2027-07-04 · Axel-exclusive $232.10

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-07-04 09:25:00 → PDX 2027-07-04 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-04 · Axel-exclusive $282.10

  • American Airlines AA2660 / AA1666: PDX 2027-06-27 14:04:00 → ONT 2027-06-27 19:21:00; 1 stop(s) via PHX; 317 minutes. Local airport times.
    • AA2660: PDX 2027-06-27 14:04:00 → PHX 2027-06-27 16:38:00; layover at PHX: 80 minutes.
    • AA1666: PHX 2027-06-27 17:58:00 → ONT 2027-06-27 19:21:00.
  • Frontier Airlines F92913: ONT 2027-07-04 09:25:00 → PDX 2027-07-04 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-05 · Axel-exclusive $232.10

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-07-05 09:25:00 → PDX 2027-07-05 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-05 · Axel-exclusive $351.85

  • Alaska Airlines AS427 / AS575: PDX 2027-06-27 05:30:00 → ONT 2027-06-27 11:18:00; 1 stop(s) via SEA; 348 minutes. Local airport times.
    • AS427: PDX 2027-06-27 05:30:00 → SEA 2027-06-27 06:31:00; layover at SEA: 123 minutes.
    • AS575: SEA 2027-06-27 08:34:00 → ONT 2027-06-27 11:18:00.
  • Alaska Airlines AS3312: ONT 2027-07-05 10:40:00 → PDX 2027-07-05 13:05:00; nonstop; 145 minutes. Local airport times.

2027-06-27 → 2027-07-07 · Axel-exclusive $218.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-07-07 09:25:00 → PDX 2027-07-07 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-07 · Axel-exclusive $328.00

  • Southwest Airlines WN2101 / WN2401: PDX 2027-06-27 06:00:00 → ONT 2027-06-27 10:40:00; 1 stop(s) via LAS; 280 minutes. Local airport times.
    • WN2101: PDX 2027-06-27 06:00:00 → LAS 2027-06-27 08:10:00; layover at LAS: 85 minutes.
    • WN2401: LAS 2027-06-27 09:35:00 → ONT 2027-06-27 10:40:00.
  • Southwest Airlines WN174 / WN930: ONT 2027-07-07 15:05:00 → PDX 2027-07-07 19:20:00; 1 stop(s) via SJC; 255 minutes. Local airport times.
    • WN174: ONT 2027-07-07 15:05:00 → SJC 2027-07-07 16:20:00; layover at SJC: 65 minutes.
    • WN930: SJC 2027-07-07 17:25:00 → PDX 2027-07-07 19:20:00.

2027-06-27 → 2027-07-08 · Axel-exclusive $218.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-07-08 09:25:00 → PDX 2027-07-08 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-08 · Axel-exclusive $328.00

  • Southwest Airlines WN2101 / WN2401: PDX 2027-06-27 06:00:00 → ONT 2027-06-27 10:40:00; 1 stop(s) via LAS; 280 minutes. Local airport times.
    • WN2101: PDX 2027-06-27 06:00:00 → LAS 2027-06-27 08:10:00; layover at LAS: 85 minutes.
    • WN2401: LAS 2027-06-27 09:35:00 → ONT 2027-06-27 10:40:00.
  • Southwest Airlines WN3491 / WN2916: ONT 2027-07-08 10:25:00 → PDX 2027-07-08 15:35:00; 1 stop(s) via OAK; 310 minutes. Local airport times.
    • WN3491: ONT 2027-07-08 10:25:00 → OAK 2027-07-08 11:45:00; layover at OAK: 130 minutes.
    • WN2916: OAK 2027-07-08 13:55:00 → PDX 2027-07-08 15:35:00.

2027-06-27 → 2027-07-09 · Axel-exclusive $218.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-07-09 09:25:00 → PDX 2027-07-09 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-09 · Axel-exclusive $328.00

  • Southwest Airlines WN2101 / WN2401: PDX 2027-06-27 06:00:00 → ONT 2027-06-27 10:40:00; 1 stop(s) via LAS; 280 minutes. Local airport times.
    • WN2101: PDX 2027-06-27 06:00:00 → LAS 2027-06-27 08:10:00; layover at LAS: 85 minutes.
    • WN2401: LAS 2027-06-27 09:35:00 → ONT 2027-06-27 10:40:00.
  • Southwest Airlines WN174 / WN930: ONT 2027-07-09 15:05:00 → PDX 2027-07-09 19:20:00; 1 stop(s) via SJC; 255 minutes. Local airport times.
    • WN174: ONT 2027-07-09 15:05:00 → SJC 2027-07-09 16:20:00; layover at SJC: 65 minutes.
    • WN930: SJC 2027-07-09 17:25:00 → PDX 2027-07-09 19:20:00.

2027-06-27 → 2027-07-11 · Axel-exclusive $218.00

  • Frontier Airlines F91106 / F91923: PDX 2027-06-27 12:51:00 → ONT 2027-06-27 18:31:00; 1 stop(s) via LAS; 340 minutes. Local airport times.
    • F91106: PDX 2027-06-27 12:51:00 → LAS 2027-06-27 15:04:00; layover at LAS: 141 minutes.
    • F91923: LAS 2027-06-27 17:25:00 → ONT 2027-06-27 18:31:00.
  • Frontier Airlines F92913: ONT 2027-07-11 09:25:00 → PDX 2027-07-11 11:57:00; nonstop; 152 minutes. Local airport times.

2027-06-27 → 2027-07-11 · Axel-exclusive $268.00

  • American Airlines AA2660 / AA1666: PDX 2027-06-27 14:04:00 → ONT 2027-06-27 19:21:00; 1 stop(s) via PHX; 317 minutes. Local airport times.
    • AA2660: PDX 2027-06-27 14:04:00 → PHX 2027-06-27 16:38:00; layover at PHX: 80 minutes.
    • AA1666: PHX 2027-06-27 17:58:00 → ONT 2027-06-27 19:21:00.
  • Frontier Airlines F92913: ONT 2027-07-11 09:25:00 → PDX 2027-07-11 11:57:00; nonstop; 152 minutes. Local airport times.

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For AI assistants

  • This page: Portland (PDX) to Ontario (ONT) · Jun 27, 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 Portland 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.