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

Return flights

04 Apr - 11 Apr	PIA
04 Apr - 20 Apr	PIA
02 Apr - 13 Apr	PIA
04 Apr - 06 May	PIA
04 Apr - 02 May	PIA
03 Apr - 13 Apr	Fly Jinnah
13 Apr - 20 Apr	Fly Jinnah
01 Apr - 20 Apr	Fly Jinnah
20 Apr - 05 May	PIA
30 Apr - 10 May	Turkish Airlines
15 Apr - 05 May	PIA
02 Apr - 09 Apr	Fly Jinnah
20 Apr - 27 Apr	PIA
15 Apr - 22 Apr	Fly Jinnah
01 Apr - 08 Apr	Fly Jinnah
25 Apr - 15 May	PIA
20 Apr - 15 May	Fly Jinnah
29 Apr - 04 May	Turkish Airlines
24 Apr - 01 May	Turkish Airlines
25 Apr - 02 May	Fly Jinnah

Also check the deals for one-way flights from Islamabad to London 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 Islamabad to London in April from $578

Return flights