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Route overview: Portland to Ontario (ONT) flight deals

Portland → Ontario

Dec 9, 2026 · choose your return date

PDX → ONT1 adulteconomyOne way and round trips

30 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 9, 2026 · One wayFrontier AirlinesNonstop$79.00 Dec 9, 2026 · One wayAlaska AirlinesNonstop$139.00 Dec 9, 2026 – Dec 10, 2026 · 1 nightFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 10, 2026 · 1 nightAlaska AirlinesNonstop$258.00 Dec 9, 2026 – Dec 11, 2026 · 2 nightsFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 11, 2026 · 2 nightsAlaska AirlinesNonstop$258.00 Dec 9, 2026 – Dec 12, 2026 · 3 nightsFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 12, 2026 · 3 nightsAlaska AirlinesNonstop$258.00 Dec 9, 2026 – Dec 13, 2026 · 4 nightsFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 13, 2026 · 4 nightsAmerican Airlines / Frontier AirlinesUp to 1 stop each way$223.00 Dec 9, 2026 – Dec 14, 2026 · 5 nightsFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 14, 2026 · 5 nightsAlaska AirlinesNonstop$258.00 Dec 9, 2026 – Dec 15, 2026 · 6 nightsFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 15, 2026 · 6 nightsAlaska AirlinesNonstop$258.00 Dec 9, 2026 – Dec 16, 2026 · 7 nightsFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 16, 2026 · 7 nightsAlaska AirlinesNonstop$258.00 Dec 9, 2026 – Dec 17, 2026 · 8 nightsFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 17, 2026 · 8 nightsAlaska AirlinesNonstop$258.00 Dec 9, 2026 – Dec 18, 2026 · 9 nightsFrontier AirlinesNonstop$148.00 Dec 9, 2026 – Dec 18, 2026 · 9 nightsAlaska AirlinesNonstop$258.00 Dec 9, 2026 – Dec 19, 2026 · 10 nightsFrontier AirlinesNonstop$170.20 Dec 9, 2026 – Dec 19, 2026 · 10 nightsAlaska AirlinesNonstop$296.70 Dec 9, 2026 – Dec 20, 2026 · 11 nightsFrontier AirlinesNonstop$170.20 Dec 9, 2026 – Dec 20, 2026 · 11 nightsAmerican Airlines / Frontier AirlinesUp to 1 stop each way$245.20 Dec 9, 2026 – Dec 21, 2026 · 12 nightsFrontier AirlinesNonstop$170.20 Dec 9, 2026 – Dec 21, 2026 · 12 nightsAlaska AirlinesNonstop$296.70 Dec 9, 2026 – Dec 22, 2026 · 13 nightsFrontier AirlinesNonstop$170.20 Dec 9, 2026 – Dec 22, 2026 · 13 nightsAlaska AirlinesNonstop$296.70 Dec 9, 2026 – Dec 23, 2026 · 14 nightsFrontier AirlinesNonstop$170.20 Dec 9, 2026 – Dec 23, 2026 · 14 nightsAlaska AirlinesNonstop$296.70

Flights for your trip

  1. Wed, Dec 9 · One way

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT

    One-way total · 1 adult · Taxes included

  2. Wed, Dec 9 · One way

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT

    One-way total · 1 adult · Taxes included

  3. Wed, Dec 9 – Thu, Dec 10

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  4. Wed, Dec 9 – Thu, Dec 10

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  5. Wed, Dec 9 – Fri, Dec 11

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  6. Wed, Dec 9 – Fri, Dec 11

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  7. Wed, Dec 9 – Sat, Dec 12

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  8. Wed, Dec 9 – Sat, Dec 12

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  9. Wed, Dec 9 – Sun, Dec 13

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  10. Wed, Dec 9 – Sun, Dec 13

    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

  11. Wed, Dec 9 – Tue, Dec 15

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  12. Wed, Dec 9 – Tue, Dec 15

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  13. Wed, Dec 9 – Wed, Dec 16

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  14. Wed, Dec 9 – Wed, Dec 16

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  15. Wed, Dec 9 – Thu, Dec 17

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  16. Wed, Dec 9 – Thu, Dec 17

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  17. Wed, Dec 9 – Sat, Dec 19

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  18. Wed, Dec 9 – Sat, Dec 19

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  19. Wed, Dec 9 – Sun, Dec 20

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  20. Wed, Dec 9 – Sun, Dec 20

    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

  21. Wed, Dec 9 – Mon, Dec 21

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  22. Wed, Dec 9 – Mon, Dec 21

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

  23. Wed, Dec 9 – Wed, Dec 23

    Frontier Airlines
    12:52 pmPDX
    2h 26m
    Nonstop
    3:18 pmONT
    Frontier Airlines
    9:25 amONT
    2h 32m
    Nonstop
    11:57 amPDX

    Round-trip total · 1 adult · Taxes included

  24. Wed, Dec 9 – Wed, Dec 23

    Alaska Airlines
    7:30 amPDX
    2h 22m
    Nonstop
    9:52 amONT
    Alaska Airlines
    10:40 amONT
    2h 25m
    Nonstop
    1:05 pmPDX

    Round-trip total · 1 adult · Taxes included

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

PDX ⇄ ONT

Economy

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

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Explore this route

All dates for this routeDec 8, 2026 · Return optionsDec 10, 2026 · Return options
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-09 · one wayFrontier AirlinesF92914Axel-exclusive $79.002026-10-29T01:55:18Z
2026-12-09 · one wayAlaska AirlinesAS3312Axel-exclusive $139.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-10Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-10Alaska AirlinesAS3312 / AS3312Axel-exclusive $258.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-11Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-11Alaska AirlinesAS3312 / AS3312Axel-exclusive $258.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-12Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-12Alaska AirlinesAS3312 / AS3312Axel-exclusive $258.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-13Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-13American Airlines / Frontier AirlinesAA2660 + AA1666 / F92913Axel-exclusive $223.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-14Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-14Alaska AirlinesAS3312 / AS3312Axel-exclusive $258.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-15Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-15Alaska AirlinesAS3312 / AS3312Axel-exclusive $258.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-16Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-16Alaska AirlinesAS3312 / AS3312Axel-exclusive $258.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-17Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-17Alaska AirlinesAS3312 / AS3312Axel-exclusive $258.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-18Frontier AirlinesF92914 / F92913Axel-exclusive $148.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-18Alaska AirlinesAS3312 / AS3312Axel-exclusive $258.002026-10-29T01:55:18Z
2026-12-09 → 2026-12-19Frontier AirlinesF92914 / F92913Axel-exclusive $170.202026-10-29T01:55:18Z
2026-12-09 → 2026-12-19Alaska AirlinesAS3312 / AS3312Axel-exclusive $296.702026-10-29T01:55:18Z
2026-12-09 → 2026-12-20Frontier AirlinesF92914 / F92913Axel-exclusive $170.202026-10-29T01:55:18Z
2026-12-09 → 2026-12-20American Airlines / Frontier AirlinesAA2660 + AA1666 / F92913Axel-exclusive $245.202026-10-29T01:55:18Z
2026-12-09 → 2026-12-21Frontier AirlinesF92914 / F92913Axel-exclusive $170.202026-10-29T01:55:18Z
2026-12-09 → 2026-12-21Alaska AirlinesAS3312 / AS3312Axel-exclusive $296.702026-10-29T01:55:18Z
2026-12-09 → 2026-12-22Frontier AirlinesF92914 / F92913Axel-exclusive $170.202026-10-29T01:55:18Z
2026-12-09 → 2026-12-22Alaska AirlinesAS3312 / AS3312Axel-exclusive $296.702026-10-29T01:55:18Z
2026-12-09 → 2026-12-23Frontier AirlinesF92914 / F92913Axel-exclusive $170.202026-10-29T01:55:18Z
2026-12-09 → 2026-12-23Alaska AirlinesAS3312 / AS3312Axel-exclusive $296.702026-10-29T01:55:18Z

Route overview: Portland to Ontario (ONT) flight deals

2026-12-09 · one way · Axel-exclusive $79.00

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $139.00

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.

2026-12-09 → 2026-12-10 · Axel-exclusive $148.00

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-10 09:25:00 → PDX 2026-12-10 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-10 · Axel-exclusive $258.00

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-10 10:40:00 → PDX 2026-12-10 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-09 → 2026-12-11 · Axel-exclusive $148.00

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-11 09:25:00 → PDX 2026-12-11 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-11 · Axel-exclusive $258.00

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-11 10:40:00 → PDX 2026-12-11 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-09 → 2026-12-12 · Axel-exclusive $148.00

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-12 09:25:00 → PDX 2026-12-12 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-12 · Axel-exclusive $258.00

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-12 10:40:00 → PDX 2026-12-12 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-09 → 2026-12-13 · Axel-exclusive $148.00

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-13 09:25:00 → PDX 2026-12-13 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-13 · Axel-exclusive $223.00

  • American Airlines AA2660 / AA1666: PDX 2026-12-09 14:04:00 → ONT 2026-12-09 19:21:00; 1 stop(s) via PHX; 317 minutes. Local airport times.
    • AA2660: PDX 2026-12-09 14:04:00 → PHX 2026-12-09 17:38:00; layover at PHX: 80 minutes.
    • AA1666: PHX 2026-12-09 18:58:00 → ONT 2026-12-09 19:21:00.
  • Frontier Airlines F92913: ONT 2026-12-13 09:25:00 → PDX 2026-12-13 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-15 · Axel-exclusive $148.00

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-15 09:25:00 → PDX 2026-12-15 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-15 · Axel-exclusive $258.00

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-15 10:40:00 → PDX 2026-12-15 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-09 → 2026-12-16 · Axel-exclusive $148.00

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-16 09:25:00 → PDX 2026-12-16 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-16 · Axel-exclusive $258.00

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-16 10:40:00 → PDX 2026-12-16 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-09 → 2026-12-17 · Axel-exclusive $148.00

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-17 09:25:00 → PDX 2026-12-17 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-17 · Axel-exclusive $258.00

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-17 10:40:00 → PDX 2026-12-17 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-09 → 2026-12-19 · Axel-exclusive $170.20

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-19 09:25:00 → PDX 2026-12-19 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-19 · Axel-exclusive $296.70

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-19 10:40:00 → PDX 2026-12-19 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-09 → 2026-12-20 · Axel-exclusive $170.20

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-20 09:25:00 → PDX 2026-12-20 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-20 · Axel-exclusive $245.20

  • American Airlines AA2660 / AA1666: PDX 2026-12-09 14:04:00 → ONT 2026-12-09 19:21:00; 1 stop(s) via PHX; 317 minutes. Local airport times.
    • AA2660: PDX 2026-12-09 14:04:00 → PHX 2026-12-09 17:38:00; layover at PHX: 80 minutes.
    • AA1666: PHX 2026-12-09 18:58:00 → ONT 2026-12-09 19:21:00.
  • Frontier Airlines F92913: ONT 2026-12-20 09:25:00 → PDX 2026-12-20 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-21 · Axel-exclusive $170.20

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-21 09:25:00 → PDX 2026-12-21 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-21 · Axel-exclusive $296.70

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-21 10:40:00 → PDX 2026-12-21 13:05:00; nonstop; 145 minutes. Local airport times.

2026-12-09 → 2026-12-23 · Axel-exclusive $170.20

  • Frontier Airlines F92914: PDX 2026-12-09 12:52:00 → ONT 2026-12-09 15:18:00; nonstop; 146 minutes. Local airport times.
  • Frontier Airlines F92913: ONT 2026-12-23 09:25:00 → PDX 2026-12-23 11:57:00; nonstop; 152 minutes. Local airport times.

2026-12-09 → 2026-12-23 · Axel-exclusive $296.70

  • Alaska Airlines AS3312: PDX 2026-12-09 07:30:00 → ONT 2026-12-09 09:52:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS3312: ONT 2026-12-23 10:40:00 → PDX 2026-12-23 13:05:00; nonstop; 145 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Portland (PDX) to Ontario (ONT) · Dec 9, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel 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.