Cheapest one-way flights from London to Istanbul in April from $122

AirHint found the following cheapest one-way flights from London (LHR) to Istanbul (IST) in April 2026 (see full year).

One-Way flights

18 Apr Eurowings
19 Apr Air Serbia
26 Apr Air Serbia
20 Apr Air Serbia
22 Apr Air Serbia
27 Apr Air Serbia
30 Apr Air Serbia
16 Apr Air Serbia
29 Apr Air Serbia
21 Apr Eurowings

Also check the deals for return flights from London to Istanbul in April.

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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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