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

Return flights

13 Sep - 20 Oct	SunExpress
30 Sep - 14 Oct	Wizz Air UK
23 Sep - 21 Oct	Wizz Air UK
16 Sep - 02 Oct	Wizz Air UK
24 Sep - 21 Oct	Wizz Air UK
25 Sep - 14 Oct	Wizz Air UK
24 Sep - 15 Oct	Wizz Air UK
17 Sep - 22 Oct	Wizz Air UK
18 Sep - 09 Oct	Wizz Air UK
18 Sep - 21 Oct	Wizz Air UK
23 Sep - 29 Sep	easyJet
16 Sep - 30 Sep	Wizz Air UK
09 Sep - 14 Sep	SunExpress
13 Sep - 29 Sep	Wizz Air Malta
11 Sep - 25 Sep	Wizz Air UK
23 Sep - 30 Sep	Wizz Air UK
13 Sep - 30 Sep	Wizz Air UK
18 Sep - 30 Sep	Wizz Air UK
11 Sep - 24 Sep	Wizz Air UK
12 Sep - 22 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 243€

Return flights