Cheapest return flights from Philadelphia to Istanbul in August from 714€

AirHint found the following cheapest return flights from Philadelphia (PHL) to Istanbul (IST) in August 2025 (see full year).

Return flights

16 Aug - 23 Aug Spirit Airlines
17 Aug - 24 Aug Frontier Airlines
17 Aug - 23 Aug British Airways
23 Aug - 28 Aug Spirit Airlines
06 Aug - 20 Aug British Airways
07 Aug - 14 Aug Frontier Airlines
03 Aug - 13 Aug British Airways
05 Aug - 09 Aug Frontier Airlines

Also check the deals for one-way flights from Philadelphia to Istanbul 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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