Cheapest one-way flights from Boston to San Juan in April from $72

AirHint found the following cheapest one-way flights from Boston (BOS) to San Juan (SJU) in April 2026 (see full year).

One-Way flights

14 Apr Spirit Airlines direct
22 Apr Spirit Airlines direct
07 Apr Spirit Airlines direct
08 Apr Spirit Airlines direct
28 Apr Spirit Airlines direct
04 Apr Spirit Airlines direct
02 Apr Frontier Airlines direct
24 Apr Frontier Airlines
15 Apr Spirit Airlines direct
06 Apr Spirit Airlines direct

Also check the deals for return flights from Boston to San Juan in April.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.