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

Return flights

27 Sep - 15 Oct	Wizz Air UK
30 Sep - 17 Oct	Wizz Air UK
23 Sep - 07 Oct	Wizz Air UK
30 Sep - 02 Oct	Wizz Air UK
15 Sep - 07 Oct	Wizz Air UK
20 Sep - 20 Oct	Wizz Air UK
15 Sep - 13 Oct	Wizz Air UK
27 Sep - 17 Oct	Wizz Air UK
15 Sep - 24 Oct	Wizz Air UK
22 Sep - 06 Oct	Wizz Air UK
15 Sep - 23 Sep	Wizz Air UK
15 Sep - 22 Sep	Wizz Air UK
13 Sep - 22 Sep	SunExpress
15 Sep - 30 Sep	Wizz Air UK
09 Sep - 23 Sep	Wizz Air UK
13 Sep - 24 Sep	Wizz Air UK
17 Sep - 30 Sep	Wizz Air UK
15 Sep - 29 Sep	SunExpress
22 Sep - 26 Sep	Wizz Air UK
09 Sep - 30 Sep	Wizz Air UK

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 239€

Return flights