Cheapest return flights from London to Istanbul in August from $221

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 August 2025 (see full year).

Return flights

26 Aug - 16 Sep Air France
31 Aug - 09 Sep Air France
19 Aug - 09 Sep Air France
17 Aug - 16 Sep Air France
29 Aug - 12 Sep British Airways direct
30 Aug - 12 Sep British Airways direct
25 Aug - 09 Sep British Airways direct
30 Aug - 09 Sep British Airways direct
31 Aug - 09 Sep British Airways direct
29 Aug - 13 Sep British Airways direct
04 Aug - 08 Aug Aegean Airlines
05 Aug - 07 Aug Aegean Airlines
04 Aug - 06 Aug Aegean Airlines
04 Aug - 07 Aug Aegean Airlines
06 Aug - 12 Aug Aegean Airlines
05 Aug - 10 Aug Aegean Airlines
06 Aug - 10 Aug Aegean Airlines
04 Aug - 10 Aug Aegean Airlines
10 Aug - 14 Aug Aegean Airlines
06 Aug - 15 Aug Aegean Airlines

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

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