Flights from Ontario (ONT) to Portland (PDX) on Alaska Airlines

Lowest fares from Ontario to Portland

Nov 2026
From$289*
Seen: 18 hours ago
Flight Type One Way|Saver
Dec 2026
From$144*
Seen: 18 hours ago
Flight Type One Way|Saver
Jan 2027
From$144*
Seen: 18 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $144
cmp-daily-histogram-bars-legend-max-price-aria-label $459
Displaying fares for November-2026
  • ONT–PDX, Nov 11, 2026: From $361
    11

    We

    NOV

  • ONT–PDX, Nov 12, 2026: From $429
    12

    Th

  • ONT–PDX, Nov 13, 2026: From $429
    13

    Fr

  • ONT–PDX, Nov 14, 2026: From $429
    14

    Sa

  • ONT–PDX, Nov 15, 2026: From $439
    15

    Su

  • ONT–PDX, Nov 16, 2026: From $379
    16

    Mo

  • ONT–PDX, Nov 17, 2026: From $369
    17

    Tu

  • ONT–PDX, Nov 18, 2026: From $369
    18

    We

  • ONT–PDX, Nov 19, 2026: From $369
    19

    Th

  • ONT–PDX, Nov 20, 2026: From $379
    20

    Fr

  • ONT–PDX, Nov 21, 2026: From $369
    21

    Sa

  • ONT–PDX, Nov 22, 2026: From $379
    22

    Su

  • ONT–PDX, Nov 23, 2026: From $439
    23

    Mo

  • ONT–PDX, Nov 24, 2026: From $299
    24

    Tu

  • ONT–PDX, Nov 25, 2026: From $299
    25

    We

  • ONT–PDX, Nov 26, 2026: From $289
    26

    Th

  • ONT–PDX, Nov 27, 2026: From $289
    27

    Fr

  • ONT–PDX, Nov 28, 2026: From $319
    28

    Sa

  • ONT–PDX, Nov 29, 2026: From $459
    29

    Su

  • ONT–PDX, Nov 30, 2026: From $299
    30

    Mo

  • ONT–PDX, Dec 1, 2026: From $173
    01

    Tu

    DEC

  • ONT–PDX, Dec 2, 2026: From $165
    02

    We

  • ONT–PDX, Dec 3, 2026: From $173
    03

    Th

  • ONT–PDX, Dec 4, 2026: From $173
    04

    Fr

  • ONT–PDX, Dec 5, 2026: From $165
    05

    Sa

  • ONT–PDX, Dec 6, 2026: From $239
    06

    Su

  • ONT–PDX, Dec 7, 2026: From $173
    07

    Mo

  • ONT–PDX, Dec 8, 2026: From $173
    08

    Tu

  • ONT–PDX, Dec 9, 2026: From $144
    09

    We

  • ONT–PDX, Dec 10, 2026: From $154
    10

    Th

    • Range$144-$459

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    One-way low-fare flights Ontario to Portland.*

    $
    keyboard_arrow_down
    One-way low-fare flights Ontario to Portland.*
    From
    To
    Fare Type
    Dates
    Price
    Ontario (ONT)Portland (PDX)One-way
    |
    Saver    		Depart: Feb 16, 2027

    From

    $144

    Seen: 18 hours ago

    Ontario (ONT)Portland (PDX)One-way
    |
    Saver    		Depart: Feb 23, 2027

    From

    $144

    Seen: 18 hours ago

    Ontario (ONT)Portland (PDX)One-way
    |
    Saver    		Depart: Mar 3, 2027

    From

    $144

    Seen: 18 hours ago

    Ontario (ONT)Portland (PDX)One-way
    |
    Saver    		Depart: Mar 9, 2027

    From

    $144

    Seen: 18 hours ago

    Ontario (ONT)Portland (PDX)One-way
    |
    Saver    		Depart: Jan 6, 2027

    From

    $144

    Seen: 18 hours ago

    Ontario (ONT)Portland (PDX)One-way
    |
    Saver    		Depart: Jan 12, 2027

    From

    $144

    Seen: 18 hours ago

    Ontario (ONT)Portland (PDX)One-way
    |
    Saver    		Depart: Jan 16, 2027

    From

    $144

    Seen: 18 hours ago

    Ontario (ONT)Portland (PDX)One-way
    |
    Saver    		Depart: Jan 26, 2027

    From

    $144

    Seen: 18 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    Frequently Asked Questions on flights from Ontario (ONT) to Portland (PDX)

    When is the best time to book a flight from Ontario to Portland?

    Want to find the lowest fares by day and time flying from Ontario to Portland on Alaska Airlines or Hawaiian Airlines? Check out our flight search widget.

    Can I earn points on my flight to Portland?

    Yes, with Atmosâ„¢ Rewards you can earn points on flights to 1000+ destinations worldwide through the growing network of Alaska and Hawaiian Airlines. Not an Atmosâ„¢ Rewards member yet? Learn more and join today.

    Can I rent a car when I arrive at Portland International Airport?

    Yes, you can rent a car at Portland International Airport. Check availability and book now

    Where can I find the status of my flight to Portland?

    You can check the status of your upcoming Alaska Airlines flight on our flight schedule page.

    Where can I find answers to questions about flying with Alaska Airlines?

    Visit the Alaska Airlines Help Center to quickly browse our help pages by category to find the information you need.

    Can I change or cancel my Alaska Airlines flight to Portland?

    Yes, you can review, modify, or cancel a reservation from our Manage Your Reservation tool. You can learn more about our policy for changing or cancelling a reservation here. 

    Looking for more? See other routes