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

Return flights

10 Dec - 31 Jan	Thai Airways	direct
10 Dec - 17 Dec	Thai Airways
15 Dec - 22 Dec	Fly Jinnah
10 Dec - 31 Dec	Thai Airways	direct
17 Dec - 03 Jan	Thai Airways	direct
29 Dec - 05 Jan	SalamAir
17 Dec - 19 Dec	Thai Airways
14 Dec - 21 Dec	China Southern
17 Dec - 27 Dec	Thai Airways	direct
01 Dec - 06 Dec	Fly Jinnah
02 Dec - 10 Dec	China Southern
07 Dec - 14 Dec	China Southern
07 Dec - 12 Dec	Emirates
22 Dec - 14 Jan	Thai Airways	direct
15 Dec - 01 Jan	Fly Jinnah
26 Dec - 07 Jan	Thai Airways	direct
25 Dec - 01 Jan	Fly Jinnah
24 Dec - 02 Jan	SalamAir
29 Dec - 03 Jan	SalamAir
24 Dec - 01 Jan	SalamAir

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

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Islamabad to Bangkok in December from 543€

Return flights