Flights from Santa Rosa (STS) to San Diego (SAN) on Alaska Airlines

Lowest fares from Santa Rosa to San Diego

Sep 2026
From$119*
Seen: 23 hours ago
Flight Type One Way|Saver
Oct 2026
From$79*
Seen: 23 hours ago
Flight Type One Way|Saver
Nov 2026
From$79*
Seen: 23 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $79
cmp-daily-histogram-bars-legend-max-price-aria-label $238
Displaying fares for September-2026
  • STS–SAN, Sep 13, 2026: From $238
    13

    Su

    SEP

  • STS–SAN, Sep 14, 2026: From $238
    14

    Mo

  • STS–SAN, Sep 15, 2026: From $238
    15

    Tu

  • STS–SAN, Sep 16, 2026: From $238
    16

    We

  • STS–SAN, Sep 17, 2026: From $238
    17

    Th

  • STS–SAN, Sep 18, 2026: From $176
    18

    Fr

  • STS–SAN, Sep 19, 2026: From $176
    19

    Sa

  • STS–SAN, Sep 20, 2026: From $176
    20

    Su

  • STS–SAN, Sep 21, 2026: From $176
    21

    Mo

  • STS–SAN, Sep 22, 2026: From $176
    22

    Tu

  • STS–SAN, Sep 23, 2026: From $176
    23

    We

  • STS–SAN, Sep 24, 2026: From $176
    24

    Th

  • STS–SAN, Sep 25, 2026: From $139
    25

    Fr

  • STS–SAN, Sep 26, 2026: From $119
    26

    Sa

  • STS–SAN, Sep 27, 2026: From $139
    27

    Su

  • STS–SAN, Sep 28, 2026: From $119
    28

    Mo

  • STS–SAN, Sep 29, 2026: From $119
    29

    Tu

  • STS–SAN, Sep 30, 2026: From $119
    30

    We

  • STS–SAN, Oct 1, 2026: From $119
    01

    Th

    OCT

  • STS–SAN, Oct 2, 2026: From $129
    02

    Fr

  • STS–SAN, Oct 3, 2026: From $79
    03

    Sa

  • STS–SAN, Oct 4, 2026: From $89
    04

    Su

  • STS–SAN, Oct 5, 2026: From $79
    05

    Mo

  • STS–SAN, Oct 6, 2026: From $79
    06

    Tu

  • STS–SAN, Oct 7, 2026: From $79
    07

    We

  • STS–SAN, Oct 8, 2026: From $103
    08

    Th

  • STS–SAN, Oct 9, 2026: From $89
    09

    Fr

  • STS–SAN, Oct 10, 2026: From $79
    10

    Sa

  • STS–SAN, Oct 11, 2026: From $89
    11

    Su

  • STS–SAN, Oct 12, 2026: From $133
    12

    Mo

    • Range$79-$238

    *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 Santa Rosa to San Diego.*

    $
    keyboard_arrow_down
    One-way low-fare flights Santa Rosa to San Diego.*
    From
    To
    Fare Type
    Dates
    Price
    Santa Rosa (STS)San Diego (SAN)One-way
    |
    Saver    		Depart: Dec 14, 2026

    From

    $79

    Seen: 23 hours ago

    Santa Rosa (STS)San Diego (SAN)One-way
    |
    Saver    		Depart: Dec 15, 2026

    From

    $79

    Seen: 23 hours ago

    Santa Rosa (STS)San Diego (SAN)One-way
    |
    Saver    		Depart: Jan 7, 2027

    From

    $79

    Seen: 23 hours ago

    Santa Rosa (STS)San Diego (SAN)One-way
    |
    Saver    		Depart: Jan 11, 2027

    From

    $79

    Seen: 23 hours ago

    Santa Rosa (STS)San Diego (SAN)One-way
    |
    Saver    		Depart: Jan 30, 2027

    From

    $79

    Seen: 23 hours ago

    Santa Rosa (STS)San Diego (SAN)One-way
    |
    Saver    		Depart: Feb 8, 2027

    From

    $79

    Seen: 23 hours ago

    Santa Rosa (STS)San Diego (SAN)One-way
    |
    Saver    		Depart: Feb 23, 2027

    From

    $79

    Seen: 23 hours ago

    Santa Rosa (STS)San Diego (SAN)One-way
    |
    Saver    		Depart: Feb 27, 2027

    From

    $79

    Seen: 23 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 Santa Rosa (STS) to San Diego (SAN)

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

    Want to find the lowest fares by day and time flying from Santa Rosa to San Diego on Alaska Airlines or Hawaiian Airlines? Check out our flight search widget.Frequently Asked Questions on flights from Santa Rosa (STS) to San Diego (SAN)

    Can I earn points on my flight to San Diego?

    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 San Diego International Airport?

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

    Where can I find the status of my flight to San Diego

    You can check the status of your upcoming Alaska Airlines 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 San Diego?

    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

    Explore Alaska Airlines's Flights to Top-Pick Destinations