Cheapest return flights from London to Istanbul in May from 176€

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

Return flights

23 May - 25 May Air Serbia
17 May - 25 May Air Serbia
02 May - 26 May Air Serbia
05 May - 25 May Aegean Airlines
23 May - 26 May Air Serbia
17 May - 25 May British Airways direct
18 May - 25 May LOT
30 May - 03 Jun Air Serbia
10 May - 15 May Air Serbia
08 May - 08 Jun British Airways direct
02 May - 02 Jun British Airways direct
23 May - 31 May Air Serbia
02 May - 04 May Air Serbia
31 May - 07 Jun Air Serbia
31 May - 04 Jun Air Serbia
26 May - 02 Jun British Airways direct
29 May - 06 Jun British Airways direct
27 May - 03 Jun British Airways direct
26 May - 03 Jun British Airways direct
29 May - 03 Jun British Airways direct

Also check the deals for one-way flights from London 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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