Cheapest one-way flights from London to Istanbul in December from $139

AirHint found the following cheapest one-way flights from London (LCY) to Istanbul (IST) in December 2026 (see full year).

One-Way flights

31 Dec KLM
02 Dec KLM
16 Dec Lufthansa
15 Dec Lufthansa
21 Dec ITA Airways
11 Dec KLM
29 Dec KLM
17 Dec ITA Airways
19 Dec ITA Airways
18 Dec ITA Airways

Also check the deals for return 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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