AirHint found the following cheapest return flights from Islamabad (ISB) to Singapore (SIN) in July 2025 (see full year).

Return flights

09 Jul - 16 Jul	SalamAir
25 Jul - 26 Aug	PIA
10 Jul - 17 Jul	SalamAir
15 Jul - 18 Jul	SalamAir
08 Jul - 15 Jul	SalamAir
24 Jul - 13 Aug	China Southern
15 Jul - 25 Jul	SalamAir
15 Jul - 31 Jul	China Southern
07 Jul - 27 Jul	PIA
20 Jul - 15 Aug	Fly Jinnah
29 Jul - 01 Aug	Emirates
06 Jul - 01 Aug	Qatar Airways
06 Jul - 02 Aug	Qatar Airways
05 Jul - 01 Aug	Qatar Airways
05 Jul - 02 Aug	Qatar Airways

Also check the deals for one-way flights from Islamabad to Singapore in July.

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 Singapore in July from 520€

Return flights