Cheapest one-way flights from Philadelphia to San Juan in March from 69€

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

One-Way flights

14 Mar Spirit Airlines direct
24 Mar Frontier Airlines direct
25 Mar Frontier Airlines direct
18 Mar Frontier Airlines direct
31 Mar Frontier Airlines direct
08 Mar Frontier Airlines direct
13 Mar Frontier Airlines direct
23 Mar Frontier Airlines direct
17 Mar Frontier Airlines direct
07 Mar Frontier Airlines direct

Also check the deals for return 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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