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

Return flights

13 Aug - 11 Sep	American Airlines
16 Aug - 05 Sep	Delta
16 Aug - 28 Aug	Delta
20 Aug - 27 Aug	Spirit Airlines
04 Aug - 11 Aug	Delta
07 Aug - 21 Aug	Delta
07 Aug - 22 Aug	Delta
06 Aug - 22 Aug	Delta
12 Aug - 22 Aug	Delta
08 Aug - 22 Aug	Delta
09 Aug - 12 Aug	Frontier Airlines

Also check the deals for one-way flights from Philadelphia to Delhi in August.

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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Cheapest return flights from Philadelphia to Delhi in August from 587€

Return flights