AirHint found the following cheapest return flights from London (LCY) to Tehran (IKA) in March 2026 (see full year).

Return flights

05 Mar - 09 Mar	SWISS
06 Mar - 09 Mar	SWISS
16 Mar - 28 Apr	Lufthansa
11 Mar - 20 Apr	Lufthansa
12 Mar - 20 Apr	Lufthansa
16 Mar - 23 Mar	Lufthansa
18 Mar - 15 Apr	Lufthansa
09 Mar - 23 Mar	Lufthansa
18 Mar - 31 Mar	Lufthansa
16 Mar - 30 Mar	Lufthansa
16 Mar - 09 Apr	Lufthansa
04 Mar - 16 Mar	Lufthansa
11 Mar - 16 Mar	Lufthansa
16 Mar - 29 Apr	Lufthansa
16 Mar - 13 Apr	Lufthansa
12 Mar - 25 Mar	ITA Airways
18 Mar - 13 Apr	Lufthansa
27 Mar - 01 Apr	Lufthansa
19 Mar - 07 Apr	KLM
13 Mar - 22 Mar	SWISS

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

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 London to Tehran in March from $554

Return flights