Cheapest return flights from London to Istanbul in April from $177

Best time to book flights for London (LHR) to Istanbul (IST) flights at AirHint

AirHint found the following cheapest return flights from London (LHR) to Istanbul (IST) in April 2025 (see full year).

Return flights

22 Apr - 29 Apr British Airways direct
26 Apr - 29 Apr British Airways direct
26 Apr - 10 May British Airways direct
20 Apr - 29 Apr British Airways direct
21 Apr - 29 Apr British Airways direct
26 Apr - 03 May British Airways direct
25 Apr - 24 May British Airways direct
19 Apr - 29 Apr British Airways direct
23 Apr - 29 Apr British Airways direct
25 Apr - 29 Apr British Airways direct
20 Apr - 18 May British Airways direct
26 Apr - 04 May British Airways direct
22 Apr - 13 May British Airways direct
21 Apr - 03 May British Airways direct
22 Apr - 04 May British Airways direct
15 Apr - 29 Apr British Airways direct
19 Apr - 04 May British Airways direct
20 Apr - 02 May British Airways direct
22 Apr - 30 Apr British Airways direct
26 Apr - 30 Apr British Airways direct

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

Skyscanner

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul