Cheapest one-way flights from Boston to San Juan in July from 134€

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

One-Way flights

20 Jul Spirit Airlines
13 Jul Spirit Airlines
20 Jul Spirit Airlines direct
22 Jul Spirit Airlines direct
13 Jul Spirit Airlines direct
15 Jul Spirit Airlines direct
19 Jul Spirit Airlines direct
12 Jul Spirit Airlines direct
16 Jul United
01 Jul Delta direct

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

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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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