casamares3 out of 5 save 100% on your flight price was $896, price is now $521 per person $521 per person mar 14 - mar 21 found 1 day ago roundtrip flight included boston (bos) to san juan (sju) stay at this 3-star spa guesthouse in cabo rojo. enjoy free parking, private pools, and a full-service spa. popular attractions tunel guaniquilla and buye beach are located nearby.