The easiest way to to get to your destination is a direct flight. Direct flights for from Bishkek to Islamabad are offered by:
The lowest prices for flights with layovers are offered by Air Arabia with a layover in Sharjah. Tickets start at 32 251c̲.
Aviasales.kg suggests buying tickets from Bishkek Islamabad in advance in order to choose the conditions for your flight that best suit your preferences and budget.
Bishkek airports serving flights to Islamabad:
Islamabad airports accepting flights from Bishkek: