Alaska Airlines Flights from San Diego to Boston

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Lowest fares from San Diego to Boston

$149
$409
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  • Range$149-$409

    One-way low-fare flights San Diego to Boston.*

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    One-way low-fare flights San Diego to Boston.*
    From
    To
    Fare Type
    Dates
    Price
    San Diego (SAN)Boston (BOS)One-way
    |
    Saver
    Depart: Sep 3, 2025

    From

    $119

    Seen: 15 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver
    Depart: Oct 22, 2025

    From

    $119

    Seen: 15 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver
    Depart: Oct 4, 2025

    From

    $119

    Seen: 15 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver
    Depart: Oct 8, 2025

    From

    $119

    Seen: 15 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver
    Depart: Oct 25, 2025

    From

    $119

    Seen: 15 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver
    Depart: Sep 13, 2025

    From

    $119

    Seen: 15 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver
    Depart: Sep 16, 2025

    From

    $119

    Seen: 15 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver
    Depart: Oct 7, 2025

    From

    $119

    Seen: 15 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.