Cheapest return flights from Philadelphia to San Juan in March from $118

AirHint found the following cheapest return flights from Philadelphia (PHL) to San Juan (SJU) in March 2026 (see full year).

Return flights

01 Mar - 03 Mar Frontier Airlines
01 Mar - 03 Mar Frontier Airlines direct
01 Mar - 06 Mar Frontier Airlines direct
04 Mar - 07 Mar Frontier Airlines
04 Mar - 09 Mar Frontier Airlines
18 Mar - 25 Mar Frontier Airlines direct
01 Mar - 04 Mar Spirit Airlines direct
11 Mar - 31 Mar Spirit Airlines direct
18 Mar - 31 Mar Spirit Airlines direct
02 Mar - 04 Mar Spirit Airlines direct
18 Mar - 08 Apr Spirit Airlines direct
24 Mar - 08 Apr Spirit Airlines
05 Mar - 03 Apr Frontier Airlines
26 Mar - 07 Apr Frontier Airlines direct
11 Mar - 01 Apr Spirit Airlines direct
23 Mar - 08 Apr Spirit Airlines direct
22 Mar - 08 Apr Spirit Airlines direct
24 Mar - 08 Apr Spirit Airlines direct
18 Mar - 03 Apr Spirit Airlines direct
18 Mar - 07 Apr Spirit Airlines direct

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

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