Cheapest return flights from London to Istanbul in April from $210

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

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

Return flights

15 Apr - 20 Apr British Airways direct
16 Apr - 20 Apr British Airways direct
18 Apr - 25 Apr Air France
10 Apr - 13 Apr Lufthansa
09 Apr - 23 Apr Lufthansa
09 Apr - 16 Apr Lufthansa
18 Apr - 24 Apr Lufthansa
12 Apr - 21 Apr Lufthansa
24 Apr - 27 Apr Lufthansa
13 Apr - 21 Apr Lufthansa

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