Cheapest return flights from London to Istanbul in May from 166€

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

Return flights

12 May - 27 May KLM
06 May - 20 May KLM
14 May - 27 May KLM
19 May - 03 Jun KLM
27 May - 20 Jun KLM
11 May - 27 May KLM
11 May - 04 Jun KLM
07 May - 20 May KLM
09 May - 26 May KLM
06 May - 22 May KLM
28 May - 08 Jun KLM
06 May - 13 May KLM
07 May - 11 May KLM
19 May - 08 Jun KLM
09 May - 22 May KLM
19 May - 22 Jun KLM
14 May - 04 Jun KLM
02 May - 14 Jun Air France
27 May - 04 Jun KLM
21 May - 10 Jun KLM

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

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