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

Return flights

26 Mar - 23 Apr	Fly Jinnah
04 Mar - 22 Mar	Fly Jinnah
12 Mar - 05 Apr	AZAL
08 Mar - 21 Mar	AZAL
01 Mar - 15 Mar	AZAL
07 Mar - 14 Mar	PIA
13 Mar - 22 Mar	PIA
25 Mar - 22 Apr	PIA
31 Mar - 15 Apr	SalamAir
11 Mar - 20 Mar	PIA
25 Mar - 31 Mar	PIA
19 Mar - 01 Apr	PIA
27 Mar - 11 Apr	Fly Jinnah
21 Mar - 03 Apr	PIA
26 Mar - 04 Apr	Fly Jinnah
18 Mar - 22 Apr	PIA
16 Mar - 30 Mar	AZAL
28 Mar - 10 Apr	Uzbekistan Airways
20 Mar - 27 Mar	PIA

Also check the deals for one-way flights from Islamabad to London in March.

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 March from 459€

Return flights