AirHint found the following cheapest return flights from Washington (IAD) to Istanbul (SAW) in October 2025 (see full year).

Return flights

21 Oct - 28 Oct	Scandinavian Airlines
01 Oct - 06 Oct	Scandinavian Airlines
01 Oct - 07 Oct	Scandinavian Airlines
03 Oct - 12 Oct	Icelandair
17 Oct - 19 Oct	Icelandair
10 Oct - 14 Oct	Scandinavian Airlines
02 Oct - 05 Oct	Scandinavian Airlines
21 Oct - 29 Oct	Icelandair
06 Oct - 16 Oct	Scandinavian Airlines
31 Oct - 14 Nov	KLM
30 Oct - 08 Nov	KLM
21 Oct - 27 Oct	Scandinavian Airlines
22 Oct - 02 Nov	TAP
24 Oct - 15 Nov	KLM
09 Oct - 01 Nov	Icelandair
11 Oct - 01 Nov	Icelandair

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

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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Cheapest return flights from Washington to Istanbul in October from 545€

Return flights