Cheapest return flights from Washington to Istanbul in May from $626

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

Return flights

06 May - 13 May Icelandair
11 May - 18 May Icelandair
02 May - 08 May Icelandair
07 May - 18 May Scandinavian Airlines
18 May - 01 Jun Icelandair
09 May - 16 May Scandinavian Airlines
18 May - 24 May Icelandair
14 May - 19 May SWISS
07 May - 19 May Scandinavian Airlines
18 May - 23 May Scandinavian Airlines
16 May - 11 Jun Icelandair
24 May - 31 May Scandinavian Airlines
23 May - 06 Jun Icelandair
30 May - 06 Jun Icelandair
30 May - 09 Jun Icelandair
30 May - 13 Jun Icelandair
22 May - 03 Jun KLM
22 May - 03 Jun Turkish Airlines direct
18 May - 01 Jun Turkish Airlines direct
23 May - 06 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.