AirHint found the following cheapest return flights from Washington (IAD) to Islamabad (ISB) in July 2025 (see full year).

Return flights

08 Jul - 22 Jul	Qatar Airways
08 Jul - 29 Jul	Turkish Airlines
08 Jul - 28 Jul	Turkish Airlines
15 Jul - 15 Aug	Etihad Airways
27 Jul - 22 Aug	Etihad Airways
16 Jul - 24 Aug	Etihad Airways
17 Jul - 30 Aug	Emirates
06 Jul - 03 Aug	Turkish Airlines
16 Jul - 29 Jul	Etihad Airways
05 Jul - 10 Aug	Turkish Airlines
08 Jul - 04 Aug	Turkish Airlines
05 Jul - 27 Jul	Turkish Airlines
04 Jul - 18 Jul	Etihad Airways
22 Jul - 31 Jul	Etihad Airways
22 Jul - 13 Aug	Etihad Airways
17 Jul - 23 Aug	Turkish Airlines
23 Jul - 04 Aug	Etihad Airways
11 Jul - 20 Jul	Qatar Airways
11 Jul - 26 Jul	Qatar Airways
17 Jul - 31 Jul	Qatar Airways

Also check the deals for one-way flights from Washington to Islamabad in July.

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 Washington to Islamabad in July from $1078

Return flights