Cheapest one-way flights from Philadelphia to Santiago in August from $179

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to Santiago (STI) in August 2025 (see full year).

One-Way flights

04 Aug Spirit Airlines
06 Aug Spirit Airlines

Also check the deals for return flights from Philadelphia to Santiago in August.

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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