Cheapest return flights from London to Istanbul in April from 150€

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

Return flights

05 Apr - 30 Apr Air Serbia
26 Apr - 29 Apr Air Serbia
26 Apr - 27 Apr Air Serbia
26 Apr - 30 Apr Air Serbia
12 Apr - 22 Apr Air Serbia
28 Apr - 30 Apr Air Serbia
22 Apr - 29 Apr Air Serbia
26 Apr - 28 Apr Air Serbia
27 Apr - 30 Apr Air Serbia
08 Apr - 28 Apr Air Serbia
29 Apr - 09 May Air Serbia
16 Apr - 27 May KLM
26 Apr - 03 May Air Serbia
27 Apr - 02 May Air Serbia
29 Apr - 06 May Air Serbia
26 Apr - 01 May Air Serbia
29 Apr - 05 May Air Serbia
27 Apr - 01 May Air Serbia
27 Apr - 05 May Air Serbia
29 Apr - 26 May Vueling Airlines

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

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