Cheapest return flights from Washington to Istanbul in May from $862

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

Return flights

04 May - 15 May Lufthansa
17 May - 29 May Air Canada
17 May - 26 May British Airways
13 May - 27 May jetBlue
06 May - 31 May Air Canada
16 May - 30 May Air Canada
07 May - 19 May British Airways
01 May - 10 May Air Canada
26 May - 05 Jun Air Canada
20 May - 01 Jun Air Canada
16 May - 25 May British Airways
23 May - 30 May Air Canada
23 May - 06 Jun jetBlue
30 May - 07 Jun Air Canada
25 May - 15 Jun British Airways
22 May - 03 Jun Royal Jordanian
29 May - 07 Jun Royal Jordanian

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

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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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