Alaska Airlines Flights from Ontario to Portland

DPA Name: DPA QA Test - Details / example to Los Angeles/LAX

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Cheap flights from Ontario to Portland

Lowest fares from Ontario to Portland

May 2026
From$239*
Seen: 17 hours ago
Flight Type One Way|Economy Class
Jun 2026
From$129*
Seen: 17 hours ago
Flight Type One Way|Economy Class
Jul 2026
From$184*
Seen: 17 hours ago
Flight Type One Way|Economy Class
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $369
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    • Range$129-$369

    *Fares and availability are based on round trip searches for 1 passenger (1 adult) in Economy class in the last 48 hours. Fares are inclusive of tax and surcharges, and subject to availability. link.

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

    $
    One-way low-fare flights Ontario to Portland.*
    From
    To
    Fare Type
    Dates
    Price
    Ontario (ONT)Portland (PDX)One-way
    |
    Economy    		Depart: Nov 29, 2026

    From

    $409

    Seen: 2 hours ago

    *Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.