Cheapest return flights from Washington to Islamabad in April from $642

AirHint found the following cheapest return flights from Washington (IAD) to Islamabad (ISB) in April 2026 (see full year).

Return flights

05 Apr - 10 May Turkish Airlines
05 Apr - 04 May Turkish Airlines
02 Apr - 10 May Turkish Airlines
05 Apr - 03 May Etihad Airways
03 Apr - 02 May Etihad Airways
04 Apr - 02 May Etihad Airways
02 Apr - 01 May Turkish Airlines
03 Apr - 01 May Turkish Airlines
01 Apr - 01 May Turkish Airlines

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

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