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

Return flights

27 Aug - 29 Sep	AJet
30 Aug - 30 Sep	AJet
21 Aug - 26 Sep	Ryanair
22 Aug - 18 Sep	Pegasus Airlines
24 Aug - 30 Sep	Ryanair
24 Aug - 22 Sep	Ryanair
24 Aug - 21 Sep	Ryanair
20 Aug - 23 Sep	Ryanair
20 Aug - 08 Sep	Ryanair
22 Aug - 21 Sep	Pegasus Airlines
22 Aug - 31 Aug	Pegasus Airlines
04 Aug - 11 Aug	Pegasus Airlines
04 Aug - 09 Aug	Ryanair
21 Aug - 24 Aug	Ryanair
01 Aug - 18 Aug	Ryanair
13 Aug - 27 Aug	Ryanair
08 Aug - 15 Aug	Pegasus Airlines
23 Aug - 31 Aug	Ryanair
18 Aug - 31 Aug	Ryanair
13 Aug - 19 Aug	Ryanair

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

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 August from 270€

Return flights