United flights from Boston to San Juan from $ 222*
Featured daily fares for flights from Boston (BOS) to San Juan (SJU)
expand_more
location_on
location_on
More United deals on Boston (BOS) to San Juan (SJU) flights
flight_takeoff
flight_land
$
Select travel class
From | To | Fare Type | Dates | Price |
---|---|---|---|---|
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 03/08/25 - 03/12/25 | from $ 413* Viewed: 3 hours ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 03/08/25 - 03/12/25 | from $ 503* Viewed: 3 hours ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 03/08/25 - 03/12/25 | from $ 593* Viewed: 3 hours ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 02/26/25 - 03/03/25 | from $ 361* Viewed: 1 day ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 03/01/25 - 03/08/25 | from $ 374* Viewed: 1 day ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 02/26/25 - 03/03/25 | from $ 451* Viewed: 1 day ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 03/01/25 - 03/08/25 | from $ 464* Viewed: 1 day ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 02/26/25 - 03/03/25 | from $ 541* Viewed: 1 day ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 03/01/25 - 03/08/25 | from $ 554* Viewed: 1 day ago |
FromBoston (BOS) | ToSan Juan (SJU) | Roundtrip | Economy | 10/10/25 - 10/19/25 | from $ 556* Viewed: 1 day 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.