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

Return flights

03 Oct - 07 Oct	Icelandair
25 Oct - 15 Nov	TAP
29 Oct - 05 Nov	TAP
14 Oct - 21 Oct	TAP
25 Oct - 01 Nov	Icelandair
30 Oct - 12 Nov	TAP
02 Oct - 09 Oct	Icelandair
29 Oct - 04 Nov	TAP
06 Oct - 21 Oct	Icelandair
16 Oct - 21 Oct	Air Canada
28 Oct - 04 Nov	TAP
24 Oct - 03 Nov	TAP
12 Oct - 01 Nov	Icelandair
11 Oct - 01 Nov	Icelandair
25 Oct - 31 Oct	Icelandair
22 Oct - 27 Oct	Air Canada
12 Oct - 29 Oct	Frontier Airlines
06 Oct - 15 Oct	TAP
03 Oct - 10 Oct	Icelandair
23 Oct - 01 Nov	TAP

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 $547

Return flights