AirHint found the following cheapest return flights from Islamabad (ISB) to Bangkok (BKK) in September 2025 (see full year).

Return flights

01 Sep - 15 Sep	SalamAir
04 Sep - 10 Sep	PIA
08 Sep - 15 Sep	Fly Jinnah
02 Sep - 11 Sep	SalamAir
05 Sep - 23 Sep	SalamAir
15 Sep - 19 Sep	Fly Jinnah
17 Sep - 27 Sep	Fly Jinnah
02 Sep - 06 Sep	SalamAir
14 Sep - 22 Sep	SalamAir
05 Sep - 22 Oct	SalamAir
13 Sep - 19 Sep	PIA
06 Sep - 23 Oct	Air Arabia
25 Sep - 06 Oct	Qatar Airways
30 Sep - 08 Oct	Etihad Airways
18 Sep - 02 Oct	Qatar Airways
30 Sep - 12 Oct	Etihad Airways
14 Sep - 01 Oct	Qatar Airways
29 Sep - 24 Oct	Qatar Airways
25 Sep - 05 Oct	Qatar Airways
26 Sep - 06 Oct	Qatar Airways

Also check the deals for one-way flights from Islamabad to Bangkok in September.

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 Bangkok in September from 450€

Return flights