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

Return flights

27 Jul - 14 Aug	British Airways
09 Jul - 17 Jul	Qatar Airways
27 Jul - 22 Aug	Qatar Airways
16 Jul - 23 Jul	Qatar Airways
08 Jul - 15 Jul	British Airways
07 Jul - 14 Jul	Emirates
24 Jul - 20 Aug	Qatar Airways
22 Jul - 08 Aug	Qatar Airways
21 Jul - 08 Aug	Qatar Airways
20 Jul - 30 Jul	Qatar Airways
15 Jul - 12 Aug	British Airways
18 Jul - 27 Jul	Qatar Airways
09 Jul - 13 Aug	Qatar Airways
30 Jul - 06 Aug	Qatar Airways
09 Jul - 30 Jul	Qatar Airways
10 Jul - 14 Aug	British Airways
26 Jul - 14 Aug	Emirates
16 Jul - 29 Jul	Emirates
04 Jul - 25 Jul	Emirates

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 1505€

Return flights