Cheapest return flights from London to Istanbul in May from $224

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

Return flights

29 May - 16 Jun British Airways direct
30 May - 10 Jun British Airways direct
03 May - 09 May Air Serbia
02 May - 16 May Air Serbia
16 May - 25 May Air Serbia
02 May - 05 May Air Serbia
02 May - 09 May Air Serbia
09 May - 16 May Air Serbia
30 May - 04 Jun Air Serbia
28 May - 11 Jun British Airways direct
04 May - 11 May British Airways direct
30 May - 04 Jun British Airways direct
06 May - 09 May British Airways direct
05 May - 11 May British Airways direct
13 May - 16 Jun British Airways direct
27 May - 03 Jun British Airways direct
03 May - 09 May British Airways direct
07 May - 11 Jun British Airways direct
31 May - 13 Jun British Airways direct
29 May - 07 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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