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

Return flights

15 Oct - 22 Oct	Scandinavian Airlines
01 Oct - 06 Oct	Icelandair
10 Oct - 12 Oct	Icelandair
07 Oct - 17 Oct	Icelandair
01 Oct - 04 Oct	Air Canada
25 Oct - 31 Oct	Scandinavian Airlines
01 Oct - 14 Oct	Icelandair
22 Oct - 30 Oct	Lufthansa
18 Oct - 26 Oct	Icelandair
20 Oct - 03 Nov	Air Canada
16 Oct - 23 Oct	Icelandair
15 Oct - 04 Nov	Aer Lingus
28 Oct - 13 Nov	Aer Lingus
19 Oct - 16 Nov	TAP
25 Oct - 03 Nov	Air Canada
23 Oct - 09 Nov	Icelandair
16 Oct - 03 Nov	Icelandair
20 Oct - 01 Nov	Aer Lingus

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 $540

Return flights