Cheapest return flights from London to Istanbul in December from 227€

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

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

Return flights

12 Dec - 18 Dec KLM
12 Dec - 14 Dec KLM
11 Dec - 18 Dec KLM
18 Dec - 24 Dec KLM
02 Dec - 09 Dec KLM
25 Dec - 02 Jan KLM
09 Dec - 16 Dec KLM
19 Dec - 21 Dec KLM
25 Dec - 29 Dec KLM
24 Dec - 27 Dec KLM
01 Dec - 06 Dec KLM
23 Dec - 04 Jan KLM
25 Dec - 01 Jan KLM
30 Dec - 02 Jan KLM
24 Dec - 03 Jan KLM
28 Dec - 02 Jan KLM
02 Dec - 04 Jan Lufthansa
23 Dec - 03 Jan KLM
22 Dec - 06 Jan Lufthansa
22 Dec - 05 Jan Lufthansa

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

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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