Cheapest return flights from Istanbul to Washington in April from $535

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

Return flights

18 Apr - 28 Apr KLM
18 Apr - 26 Apr KLM
18 Apr - 09 May KLM
28 Apr - 03 May KLM
15 Apr - 22 Apr KLM
17 Apr - 25 Apr Scandinavian Airlines
03 Apr - 12 Apr Air France
28 Apr - 03 May Turkish Airlines direct
18 Apr - 28 Apr Turkish Airlines direct
17 Apr - 23 May Lufthansa
18 Apr - 09 May Turkish Airlines direct
03 Apr - 12 Apr Turkish Airlines direct
17 Apr - 25 Apr Turkish Airlines direct
18 Apr - 26 Apr Turkish Airlines direct
17 Apr - 23 May Turkish Airlines direct

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

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