Cheapest return flights from London to Istanbul in December from $119

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

Return flights

03 Dec - 10 Dec Pegasus Airlines direct
04 Dec - 06 Dec Pegasus Airlines direct
05 Dec - 09 Dec Pegasus Airlines direct
05 Dec - 11 Dec Pegasus Airlines direct
02 Dec - 05 Dec Pegasus Airlines direct
03 Dec - 12 Dec Pegasus Airlines direct
06 Dec - 13 Dec Pegasus Airlines direct
02 Dec - 24 Dec Pegasus Airlines direct
05 Dec - 10 Dec Pegasus Airlines direct
09 Dec - 11 Dec Pegasus Airlines direct
27 Dec - 06 Jan Pegasus Airlines
27 Dec - 01 Jan Pegasus Airlines
28 Dec - 05 Jan Pegasus Airlines
29 Dec - 02 Jan Pegasus Airlines direct
13 Dec - 10 Jan Ryanair
27 Dec - 01 Jan Pegasus Airlines direct
27 Dec - 02 Jan Pegasus Airlines direct
21 Dec - 31 Jan Pegasus Airlines direct
28 Dec - 02 Jan Pegasus Airlines direct
26 Dec - 01 Jan Pegasus Airlines

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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