AirHint found the following cheapest return flights from New York (JFK) to Karachi (KHI) in September 2025 (see full year).

Return flights

17 Sep - 17 Oct	Turkish Airlines
09 Sep - 16 Sep	Turkish Airlines
09 Sep - 24 Oct	Turkish Airlines
01 Sep - 17 Sep	Turkish Airlines
03 Sep - 30 Oct	Turkish Airlines
02 Sep - 10 Oct	Turkish Airlines
01 Sep - 21 Sep	Turkish Airlines
02 Sep - 09 Sep	Turkish Airlines
08 Sep - 15 Sep	Emirates
01 Sep - 08 Sep	Emirates
05 Sep - 22 Sep	PIA

Also check the deals for one-way flights from New York to Karachi in September.

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 New York to Karachi in September from 675€

Return flights