Cheapest return flights from Philadelphia to San Juan in March from $129

Best time to book flights for Philadelphia (PHL) to San Juan (SJU) flights at AirHint

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

Return flights

25 Mar - 26 Mar Frontier Airlines direct
31 Mar - 04 Apr Spirit Airlines direct
26 Mar - 09 Apr Frontier Airlines direct
29 Mar - 02 Apr Frontier Airlines direct
25 Mar - 27 Mar Frontier Airlines direct
26 Mar - 03 Apr Frontier Airlines direct
25 Mar - 28 Mar Spirit Airlines direct
24 Mar - 26 Mar Spirit Airlines direct
30 Mar - 02 Apr Frontier Airlines direct
28 Mar - 05 Apr Spirit Airlines direct
31 Mar - 03 Apr Spirit Airlines direct
29 Mar - 05 Apr Frontier Airlines direct
27 Mar - 02 Apr Spirit Airlines
28 Mar - 02 Apr Frontier Airlines direct
19 Mar - 28 Mar Spirit Airlines
19 Mar - 26 Mar Spirit Airlines
26 Mar - 31 Mar Spirit Airlines
29 Mar - 31 Mar Spirit Airlines
26 Mar - 29 Mar Frontier Airlines direct
18 Mar - 25 Mar Frontier Airlines

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

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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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