Flights from Portland (PDX) to Santa Rosa (STS) on Alaska Airlines

Lowest fares from Portland to Santa Rosa

Oct 2026
From$231*
Seen: 12 hours ago
Flight Type One Way|Saver
Nov 2026
From$122*
Seen: 12 hours ago
Flight Type One Way|Saver
Dec 2026
From$122*
Seen: 12 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $122
cmp-daily-histogram-bars-legend-max-price-aria-label $419
Displaying fares for October-2026
  • PDX–STS, Oct 13, 2026: From $419
    13

    Tu

    OCT

  • PDX–STS, Oct 14, 2026: From $419
    14

    We

  • PDX–STS, Oct 15, 2026: From $419
    15

    Th

  • PDX–STS, Oct 16, 2026: From $419
    16

    Fr

  • PDX–STS, Oct 17, 2026: From $419
    17

    Sa

  • PDX–STS, Oct 18, 2026: From $419
    18

    Su

  • PDX–STS, Oct 19, 2026: From $334
    19

    Mo

  • PDX–STS, Oct 20, 2026: From $288
    20

    Tu

  • PDX–STS, Oct 21, 2026: From $288
    21

    We

  • PDX–STS, Oct 22, 2026: From $305
    22

    Th

  • PDX–STS, Oct 23, 2026: From $334
    23

    Fr

  • PDX–STS, Oct 24, 2026: From $305
    24

    Sa

  • PDX–STS, Oct 25, 2026: From $334
    25

    Su

  • PDX–STS, Oct 26, 2026: From $248
    26

    Mo

  • PDX–STS, Oct 27, 2026: From $231
    27

    Tu

  • PDX–STS, Oct 28, 2026: From $231
    28

    We

  • PDX–STS, Oct 29, 2026: From $248
    29

    Th

  • PDX–STS, Oct 30, 2026: From $264
    30

    Fr

  • PDX–STS, Oct 31, 2026: From $248
    31

    Sa

  • PDX–STS, Nov 1, 2026: From $264
    01

    Su

    NOV

  • PDX–STS, Nov 2, 2026: From $202
    02

    Mo

  • PDX–STS, Nov 3, 2026: From $149
    03

    Tu

  • PDX–STS, Nov 4, 2026: From $149
    04

    We

  • PDX–STS, Nov 5, 2026: From $219
    05

    Th

  • PDX–STS, Nov 6, 2026: From $239
    06

    Fr

  • PDX–STS, Nov 7, 2026: From $149
    07

    Sa

  • PDX–STS, Nov 8, 2026: From $219
    08

    Su

  • PDX–STS, Nov 9, 2026: From $219
    09

    Mo

  • PDX–STS, Nov 10, 2026: From $122
    10

    Tu

  • PDX–STS, Nov 11, 2026: From $149
    11

    We

  • PDX–STS, Nov 12, 2026: From $159
    12

    Th

    • Range$122-$419

    *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 Portland to Santa Rosa.*

    $
    keyboard_arrow_down
    One-way low-fare flights Portland to Santa Rosa.*
    From
    To
    Fare Type
    Dates
    Price
    Portland (PDX)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Dec 16, 2026

    From

    $122

    Seen: 12 hours ago

    Portland (PDX)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jan 6, 2027

    From

    $122

    Seen: 12 hours ago

    Portland (PDX)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jan 7, 2027

    From

    $122

    Seen: 12 hours ago

    Portland (PDX)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jan 11, 2027

    From

    $122

    Seen: 12 hours ago

    Portland (PDX)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Feb 2, 2027

    From

    $122

    Seen: 12 hours ago

    Portland (PDX)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Dec 9, 2026

    From

    $122

    Seen: 12 hours ago

    Portland (PDX)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Dec 15, 2026

    From

    $122

    Seen: 12 hours ago

    Portland (PDX)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jan 9, 2027

    From

    $122

    Seen: 12 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 Portland (PDX) to Santa Rosa (STS)

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

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

    Can I earn points on my flight to Santa Rosa?

    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 Charles M. Schulz–Sonoma County Airport?

    Yes, you can rent a car at Charles M. Schulz–Sonoma County Airport. Check availability and book now

    Where can I find the status of my flight to Santa Rosa?

    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 Santa Rosa?

    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. 

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