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

Return flights

05 Oct - 20 Oct	Lufthansa
24 Oct - 22 Nov	Lufthansa
02 Oct - 18 Oct	Air Canada
02 Oct - 17 Oct	Air Canada
21 Oct - 16 Nov	Qatar Airways
17 Oct - 01 Nov	Lufthansa
12 Oct - 28 Oct	Lufthansa
02 Oct - 25 Oct	Air Canada
03 Oct - 25 Oct	Frontier Airlines

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

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 October from 627€

Return flights