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

Return flights

24 Sep - 22 Oct	Etihad Airways
25 Sep - 30 Sep	Qatar Airways
22 Sep - 29 Sep	Qatar Airways
21 Sep - 21 Oct	Etihad Airways
30 Sep - 14 Oct	Norse Atlantic Airways (UK)
25 Sep - 10 Oct	Etihad Airways
20 Sep - 29 Sep	Etihad Airways
22 Sep - 28 Sep	Qatar Airways
26 Sep - 03 Oct	Qatar Airways
25 Sep - 02 Oct	Etihad Airways
23 Sep - 30 Sep	Qatar Airways
24 Sep - 01 Oct	Qatar Airways
26 Sep - 04 Oct	Qatar Airways
20 Sep - 28 Sep	Etihad Airways
20 Sep - 27 Sep	Qatar Airways

Also check the deals for one-way flights from New York to Islamabad 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 Islamabad in September from $853

Return flights