Cheapest return flights from Boston to San Juan in April from 119€

Best time to book flights for Boston (BOS) to San Juan (SJU) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to San Juan (SJU) in April 2025 (see full year).

Return flights

29 Apr - 06 May Spirit Airlines
29 Apr - 13 May Spirit Airlines
01 Apr - 15 Apr Frontier Airlines direct
30 Apr - 19 May Spirit Airlines
08 Apr - 15 Apr Frontier Airlines direct
03 Apr - 08 Apr Frontier Airlines direct
10 Apr - 15 Apr Frontier Airlines direct
10 Apr - 17 Apr Frontier Airlines direct
10 Apr - 13 Apr Frontier Airlines direct
03 Apr - 07 Apr Frontier Airlines
10 Apr - 14 Apr Frontier Airlines
10 Apr - 16 Apr Frontier Airlines
19 Apr - 22 Apr Southwest Airlines

Also check the deals for one-way flights from Boston to San Juan in April.

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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.

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