Cheapest return flights from Washington to Istanbul in April from 548€

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

Return flights

15 Apr - 22 Apr Scandinavian Airlines
13 Apr - 20 Apr Scandinavian Airlines
09 Apr - 16 Apr Scandinavian Airlines
22 Apr - 06 May Scandinavian Airlines
19 Apr - 03 May Scandinavian Airlines
01 Apr - 08 Apr Scandinavian Airlines
01 Apr - 25 Apr Scandinavian Airlines
10 Apr - 17 Apr Scandinavian Airlines
23 Apr - 07 May Lufthansa
24 Apr - 05 May United
09 Apr - 16 Apr Turkish Airlines direct
26 Apr - 15 May Delta
01 Apr - 08 Apr Turkish Airlines direct
10 Apr - 17 Apr Turkish Airlines direct
12 Apr - 19 Apr Turkish Airlines direct
19 Apr - 03 May Turkish Airlines direct
22 Apr - 06 May Turkish Airlines direct
24 Apr - 05 May Turkish Airlines direct

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

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