Cheapest return flights from Boston to San Juan in April from 114€

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

03 Apr - 08 Apr Frontier Airlines
01 Apr - 08 Apr Frontier Airlines
01 Apr - 09 Apr Frontier Airlines
03 Apr - 07 Apr Frontier Airlines
24 Apr - 28 Apr Frontier Airlines
03 Apr - 10 Apr Frontier Airlines
07 Apr - 10 Apr Frontier Airlines
10 Apr - 14 Apr Frontier Airlines
25 Apr - 28 Apr Frontier Airlines
13 Apr - 05 May Frontier Airlines
25 Apr - 02 May Frontier Airlines
30 Apr - 05 May Spirit Airlines
16 Apr - 28 Apr Frontier Airlines
28 Apr - 05 May Frontier Airlines
27 Apr - 02 May Frontier Airlines direct
28 Apr - 05 May Frontier Airlines direct
30 Apr - 04 May Spirit Airlines
25 Apr - 02 May Frontier Airlines direct
25 Apr - 04 May Frontier Airlines
27 Apr - 04 May Frontier 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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