Cheapest return flights from London to Istanbul in April from $186

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 2026 (see full year).

Return flights

22 Apr - 23 Apr British Airways direct
15 Apr - 20 Apr British Airways direct
21 Apr - 25 Apr British Airways direct
19 Apr - 26 Apr British Airways direct
17 Apr - 26 Apr British Airways direct
01 Apr - 15 Apr Lufthansa
30 Apr - 07 May Lufthansa
21 Apr - 08 May Lufthansa
24 Apr - 03 May Air France
04 Apr - 11 Apr LOT
03 Apr - 10 Apr LOT
03 Apr - 11 Apr LOT
01 Apr - 07 Apr LOT

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.

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