Cheapest return flights from Philadelphia to San Juan in October from $201

AirHint found the following cheapest return flights from Philadelphia (PHL) to San Juan (SJU) in October 2025 (see full year).

Return flights

04 Oct - 12 Oct Frontier Airlines
06 Oct - 07 Oct Frontier Airlines
03 Oct - 12 Oct Frontier Airlines
10 Oct - 13 Oct Frontier Airlines
10 Oct - 13 Oct Frontier Airlines direct
02 Oct - 09 Oct Spirit Airlines direct
12 Oct - 30 Oct Spirit Airlines direct
30 Oct - 13 Nov Spirit Airlines direct
30 Oct - 02 Nov Spirit Airlines direct
12 Oct - 02 Nov Spirit Airlines direct
06 Oct - 09 Oct Spirit Airlines
18 Oct - 30 Oct Spirit Airlines
18 Oct - 02 Nov Spirit Airlines
02 Oct - 03 Oct Spirit Airlines
30 Oct - 18 Nov Spirit Airlines
30 Oct - 17 Nov Spirit Airlines
30 Oct - 08 Nov Spirit Airlines
18 Oct - 08 Nov Spirit Airlines

Also check the deals for one-way flights from Philadelphia to San Juan in October.

Skyscanner

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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