AirHint found the following cheapest return flights from London (STN) to Tehran (IKA) in April 2026 (see full year).

Return flights

20 Apr - 27 Apr	Pegasus Airlines
18 Apr - 28 Apr	Pegasus Airlines
19 Apr - 03 May	Pegasus Airlines
25 Apr - 09 May	Pegasus Airlines
28 Apr - 26 May	Ryanair
11 Apr - 15 May	Pegasus Airlines
25 Apr - 26 Apr	Ryanair
06 Apr - 14 May	Ryanair
03 Apr - 15 Apr	SunExpress
03 Apr - 17 Apr	SunExpress
03 Apr - 16 Apr	SunExpress
03 Apr - 19 Apr	SunExpress
27 Apr - 31 May	Ryanair
02 Apr - 12 Apr	SunExpress
06 Apr - 19 Apr	Ryanair
01 Apr - 19 Apr	Ryanair
01 Apr - 01 May	Ryanair

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

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 April from 329€

Return flights