Cheapest return flights from London to Istanbul in April from 174€

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

Return flights

03 Apr - 25 Apr KLM
25 Apr - 27 Apr KLM
14 Apr - 25 Apr KLM
17 Apr - 20 Apr KLM
11 Apr - 18 Apr KLM
19 Apr - 25 Apr KLM
06 Apr - 26 Apr KLM
06 Apr - 20 Apr KLM
03 Apr - 18 Apr KLM
11 Apr - 16 Apr KLM
25 Apr - 02 May KLM
29 Apr - 02 May British Airways direct
27 Apr - 02 May KLM
30 Apr - 03 May KLM
28 Apr - 03 May KLM
25 Apr - 05 May British Airways direct
29 Apr - 03 May British Airways direct
27 Apr - 02 May British Airways direct
25 Apr - 02 May British Airways direct
28 Apr - 03 May British Airways direct

Also check the deals for one-way 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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