Cheapest return flights from Jacksonville (JAX) to San Juan (SJU)

Cheapest month: December 2026, from $ 150. Book in one tap, or open a month for every date.

All destinations from Jacksonville (JAX)

One-wayReturn

  • November 2026

    25 Nov – 3 Dec 8 nights
    $ 155 return
    Frontier Airlines
    Price seen 8 Oct
    November dates

  • December 2026

    6–10 Dec 4 nights
    $ 150 return Cheapest month
    Direct Frontier Airlines
    Price seen 8 Oct
    December dates

  • January 2027

    23 Jan – 1 Feb 2027 9 nights
    $ 245 return
    Direct jetBlue
    Price seen 8 Oct
    January dates

  • March 2027

    5–13 Mar 2027 8 nights
    $ 286 return
    Direct Frontier Airlines
    Price seen 8 Oct
    March dates

  • April 2027

    29 Apr – 2 May 2027 3 nights
    $ 352 return
    Direct jetBlue
    Price seen 8 Oct
    April dates
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Updated Oct 9, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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