AirHint found the following cheapest return flights from Windsor Locks (BDL) to San Juan (SJU) in July 2026 (see full year).

Return flights

07 Jul - 17 Jul	jetBlue
13 Jul - 30 Jul	jetBlue	direct
18 Jul - 28 Jul	Frontier Airlines	direct
20 Jul - 24 Jul	Delta
10 Jul - 15 Jul	Frontier Airlines	direct
28 Jul - 10 Aug	Southwest Airlines
27 Jul - 10 Aug	Southwest Airlines
08 Jul - 15 Jul	Southwest Airlines
02 Jul - 06 Jul	Southwest Airlines
05 Jul - 06 Jul	Southwest Airlines
03 Jul - 06 Jul	Southwest Airlines
04 Jul - 06 Jul	Southwest Airlines
24 Jul - 02 Aug	United
26 Jul - 10 Aug	Southwest Airlines

Also check the deals for one-way flights from Windsor Locks to San Juan in July.

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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Cheapest return flights from Windsor Locks to San Juan in July from 267€

Return flights