Cheapest return flights from Istanbul to Washington in April from $563

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

Return flights

13 Apr - 20 Apr KLM
10 Apr - 18 Apr KLM
30 Apr - 07 May KLM
01 Apr - 15 Apr KLM
18 Apr - 23 Apr KLM
01 Apr - 15 Apr Turkish Airlines direct
21 Apr - 19 May Delta
30 Apr - 07 May Turkish Airlines direct
18 Apr - 23 Apr Turkish Airlines direct
05 Apr - 19 Apr KLM
13 Apr - 20 Apr Turkish Airlines direct
05 Apr - 06 Apr Turkish Airlines
05 Apr - 06 Apr Turkish Airlines direct

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

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