AirHint found the following cheapest one-way flights from London (LHR) to Istanbul (IST) in May 2026 (see full year).
One-Way flights
| 12 May | KLM | ||
| 14 May | KLM | ||
| 27 May | KLM | ||
| 19 May | KLM | ||
| 23 May | KLM | ||
| 11 May | KLM | ||
| 18 May | KLM | ||
| 16 May | KLM | ||
| 13 May | KLM | ||
| 20 May | British Airways | direct |
Also check the deals for return 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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