AirHint found the following cheapest return flights from Tehran (IKA) to London (LGW) in December 2025 (see full year).

Return flights

13 Dec - 05 Jan	Turkish Airlines
13 Dec - 06 Jan	Turkish Airlines
20 Dec - 04 Jan	Turkish Airlines
20 Dec - 11 Jan	Qatar Airways
18 Dec - 11 Jan	Qatar Airways
15 Dec - 28 Dec	Qatar Airways
13 Dec - 07 Jan	Qatar Airways
12 Dec - 05 Jan	Qatar Airways
01 Dec - 09 Dec	Turkish Airlines
17 Dec - 03 Jan	Turkish Airlines
01 Dec - 14 Dec	Qatar Airways

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

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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Cheapest return flights from Tehran to London in December from $826

Return flights