Cheapest return flights from Washington to Istanbul in May from $687

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

Return flights

14 May - 21 May Scandinavian Airlines
15 May - 22 May Scandinavian Airlines
07 May - 31 May Royal Jordanian
18 May - 25 May Scandinavian Airlines
20 May - 03 Jun Aer Lingus
17 May - 24 May Scandinavian Airlines
18 May - 24 May Air France
23 May - 30 May Icelandair
15 May - 30 May Brussels Airlines
29 May - 20 Jun Air France
20 May - 27 May Lufthansa
22 May - 01 Jun KLM
17 May - 31 May Turkish Airlines direct
20 May - 03 Jun Turkish Airlines direct
22 May - 01 Jun Turkish Airlines direct
29 May - 20 Jun Turkish Airlines direct

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

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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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