Flights from San Juan to San Diego from $ 427*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from San Juan (SJU) to San Diego (SAN)

May 2026
From$ 458*
Viewed: 17 hours ago
RoundTrip|Economy
Jun 2026
From$ 427*
Viewed: 17 hours ago
RoundTrip|Economy
Jul 2026
From$ 514*
Viewed: 17 hours ago
RoundTrip|Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $ 427
cmp-daily-histogram-bars-legend-max-price-aria-label $ 858
Displaying fares for May-2026
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    • Range$ 427-$ 858

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    More United deals on San Juan (SJU) to San Diego (SAN) flights

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    More United deals on San Juan (SJU) to San Diego (SAN) flights
    From
    To
    Fare Type
    Dates
    Price
    San Juan (SJU)San Diego (SAN)Roundtrip
    |
    Economy    		08/04/26 - 08/18/26

    from

    $ 427

    Viewed: 17 hours ago

    San Juan (SJU)San Diego (SAN)Roundtrip
    |
    Economy    		06/05/26 - 06/09/26

    from

    $ 427

    Viewed: 17 hours ago

    San Juan (SJU)San Diego (SAN)Roundtrip
    |
    Economy    		08/04/26 - 08/08/26

    from

    $ 427

    Viewed: 17 hours ago

    San Juan (SJU)San Diego (SAN)Roundtrip
    |
    Economy    		08/04/26 - 08/11/26

    from

    $ 427

    Viewed: 17 hours ago

    San Juan (SJU)San Diego (SAN)Roundtrip
    |
    Economy    		05/29/26 - 06/02/26

    from

    $ 458

    Viewed: 17 hours ago

    San Juan (SJU)San Diego (SAN)Roundtrip
    |
    Economy    		06/02/26 - 06/09/26

    from

    $ 466

    Viewed: 17 hours ago

    San Juan (SJU)San Diego (SAN)Roundtrip
    |
    Economy    		05/28/26 - 06/01/26

    from

    $ 470

    Viewed: 17 hours ago

    San Juan (SJU)San Diego (SAN)Roundtrip
    |
    Economy    		08/03/26 - 08/07/26

    from

    $ 488

    Viewed: 17 hours ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

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