Cheapest return flights from Washington to Istanbul in May from 550€

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

Return flights

09 May - 23 May Scandinavian Airlines
03 May - 13 May Icelandair
03 May - 12 May Icelandair
03 May - 11 May Scandinavian Airlines
13 May - 18 May Scandinavian Airlines
07 May - 10 May Scandinavian Airlines
01 May - 20 May Scandinavian Airlines
01 May - 07 May Icelandair
03 May - 09 May Scandinavian Airlines
02 May - 09 May Scandinavian Airlines
20 May - 10 Jun Lufthansa
26 May - 23 Jun KLM
31 May - 12 Jun KLM
22 May - 03 Jun KLM
31 May - 30 Jun Lufthansa
20 May - 10 Jun Turkish Airlines direct
26 May - 23 Jun Turkish Airlines direct
31 May - 30 Jun Turkish Airlines direct
31 May - 12 Jun Turkish Airlines direct

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

Powered by

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Feel free to contact us with any feedback or request another flight research.