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

Return flights

11 Mar - 08 Apr	Turkish Airlines
25 Mar - 15 Apr	Turkish Airlines
26 Mar - 12 Apr	Turkish Airlines
30 Mar - 20 Apr	Turkish Airlines
21 Mar - 10 Apr	Turkish Airlines
23 Mar - 12 Apr	Turkish Airlines
09 Mar - 02 Apr	Fly Jinnah
11 Mar - 08 Apr	British Airways	direct

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 569€

Return flights