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

Return flights

06 Sep - 06 Oct	Wizz Air UK
10 Sep - 17 Sep	Wizz Air UK
02 Sep - 10 Sep	Wizz Air Malta
09 Sep - 01 Oct	Wizz Air
01 Sep - 01 Oct	Wizz Air UK
26 Sep - 30 Sep	Wizz Air UK
04 Sep - 29 Sep	Wizz Air UK
01 Sep - 17 Sep	Wizz Air UK
22 Sep - 29 Sep	easyJet
01 Sep - 29 Sep	Wizz Air UK
09 Sep - 16 Sep	Wizz Air
01 Sep - 30 Sep	Wizz Air UK
06 Sep - 22 Sep	Wizz Air UK
22 Sep - 27 Oct	Wizz Air UK
25 Sep - 02 Oct	Wizz Air

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

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 September from $387

Return flights