Cheapest return flights from London to Istanbul in April from 189€

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

Return flights

25 Apr - 28 Apr Air Serbia
19 Apr - 22 Apr Air Serbia
05 Apr - 19 Apr Air Serbia
06 Apr - 25 Apr Air Serbia
10 Apr - 12 Apr Air Serbia
05 Apr - 14 Apr Air Serbia
06 Apr - 14 Apr Air Serbia
02 Apr - 10 Apr Air Serbia
02 Apr - 11 Apr Air Serbia
04 Apr - 12 Apr Air Serbia
25 Apr - 03 May Air Serbia
04 Apr - 18 May Air Serbia
19 Apr - 08 May Air Serbia
28 Apr - 02 May Air France
24 Apr - 02 May Aegean Airlines
29 Apr - 03 May Air France
17 Apr - 02 May British Airways direct
24 Apr - 03 May Aegean Airlines
28 Apr - 02 May British Airways direct
24 Apr - 02 May British Airways direct

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

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