Cheapest one-way flights from Boston (BOS) to San Juan (SJU), July

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
29 Jul Frontier Airlines
21 Jul Southwest Airlines
22 Jul Delta
19 Jul Delta
20 Jul United
26 Jul jetBlue
19 Jul jetBlue
Direct Flight
15 Jul Southwest Airlines
21 Jul Delta
Direct Flight
20 Jul Delta
Direct Flight
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deals for return flights from Boston to San Juan in July.

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Updated Jul 12, 2026.

About these fares

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