Cheapest return flights from London to Istanbul in December from $176

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

Return flights

11 Dec - 12 Dec British Airways direct
01 Dec - 02 Dec British Airways direct
06 Dec - 08 Dec British Airways direct
11 Dec - 15 Dec British Airways direct
07 Dec - 16 Dec British Airways direct
02 Dec - 09 Dec British Airways direct
02 Dec - 17 Dec British Airways direct
05 Dec - 13 Dec British Airways direct
10 Dec - 18 Dec British Airways direct
03 Dec - 10 Dec British Airways direct
02 Dec - 23 Jan British Airways direct
13 Dec - 25 Jan LOT
17 Dec - 10 Jan British Airways direct
17 Dec - 11 Jan British Airways direct
13 Dec - 25 Jan British Airways direct
18 Dec - 09 Jan LOT
29 Dec - 30 Jan Turkish Airlines direct
28 Dec - 12 Jan Turkish Airlines direct
28 Dec - 07 Jan Air France
11 Dec - 06 Jan Air France

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

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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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