AirHint found the following cheapest return flights from London (LHR) to Istanbul (IST)
in August 2025 (see full year ).
Return flights
29 Aug
- 27 Sep
British Airways
169 €
direct
27 Aug
- 18 Sep
British Airways
185 €
direct
20 Aug
- 20 Sep
British Airways
194 €
direct
23 Aug
- 20 Sep
British Airways
195 €
direct
15 Aug
- 20 Sep
British Airways
197 €
direct
18 Aug
- 26 Sep
British Airways
225 €
direct
13 Aug
- 30 Sep
KLM
230 €
28 Aug
- 04 Sep
Air France
230 €
29 Aug
- 04 Sep
Air France
231 €
26 Aug
- 02 Sep
KLM
232 €
15 Aug
- 17 Aug
KLM
279 €
05 Aug
- 12 Aug
LOT
280 €
05 Aug
- 08 Aug
LOT
280 €
04 Aug
- 18 Aug
Aegean Airlines
283 €
12 Aug
- 19 Aug
Aegean Airlines
288 €
03 Aug
- 08 Aug
Aegean Airlines
288 €
07 Aug
- 14 Aug
Aegean Airlines
288 €
04 Aug
- 11 Aug
Aegean Airlines
289 €
15 Aug
- 22 Aug
KLM
289 €
06 Aug
- 08 Aug
Aegean Airlines
289 €
Also check the deals for one-way flights from London to Istanbul in August .
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.