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

Return flights

22 Sep - 29 Sep	AJet
21 Sep - 28 Sep	AJet
22 Sep - 25 Sep	AJet
24 Sep - 11 Oct	Pegasus Airlines
23 Sep - 27 Sep	AJet
23 Sep - 07 Oct	Pegasus Airlines
27 Sep - 04 Oct	Pegasus Airlines
21 Sep - 09 Oct	Pegasus Airlines
25 Sep - 23 Oct	AZAL
23 Sep - 25 Sep	AJet
20 Sep - 09 Oct	Pegasus Airlines
27 Sep - 03 Oct	Pegasus Airlines
20 Sep - 08 Oct	Pegasus Airlines
23 Sep - 16 Oct	Pegasus Airlines
25 Sep - 03 Oct	AZAL
20 Sep - 27 Sep	AJet
19 Sep - 22 Sep	AJet
19 Sep - 25 Sep	AJet
19 Sep - 21 Sep	AJet
17 Sep - 22 Sep	AJet

Also check the deals for one-way flights from Tehran to London 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 Tehran to London in September from $366

Return flights