Cheapest return flights from London to Istanbul in December from $171

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 December 2025 (see full year).

Return flights

03 Dec - 06 Dec British Airways direct
10 Dec - 14 Dec British Airways direct
11 Dec - 13 Dec British Airways direct
01 Dec - 13 Dec British Airways direct
08 Dec - 11 Dec British Airways direct
05 Dec - 07 Dec British Airways direct
11 Dec - 24 Dec British Airways direct
01 Dec - 08 Dec British Airways direct
28 Dec - 18 Jan British Airways direct
11 Dec - 25 Dec British Airways direct
15 Dec - 12 Jan Air France
31 Dec - 07 Jan British Airways direct
27 Dec - 10 Jan British Airways direct
15 Dec - 12 Jan British Airways direct
13 Dec - 20 Dec British Airways direct
26 Dec - 10 Jan British Airways direct
14 Dec - 15 Jan British Airways
14 Dec - 15 Jan British Airways direct
11 Dec - 03 Jan British Airways
29 Dec - 05 Jan British Airways

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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