AirHint found the following cheapest one-way flights from Windsor Locks (BDL) to San Juan (SJU) in October 2025 (see full year).

One-Way flights

05 Oct	Frontier Airlines
03 Oct	Frontier Airlines
02 Oct	Spirit Airlines
01 Oct	Spirit Airlines
04 Oct	Spirit Airlines
02 Oct	jetBlue	direct
05 Oct	jetBlue	direct
03 Oct	jetBlue	direct
04 Oct	jetBlue	direct
01 Oct	jetBlue	direct

Also check the deals for return flights from Windsor Locks to San Juan in October.

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 one-way flights from Windsor Locks to San Juan in October from $83

One-Way flights