How far ahead should I book a flight from Karachi to Islamabad with Pakistan International Airlines?

Booking with Pakistan International Airlines 12 days in advance of your planned departure date is, on average, the best time to get cheap flights from Karachi to Islamabad. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Karachi to Islamabad with Pakistan International Airlines?

Currently, the most affordable month to book a Pakistan International Airlines flight from Karachi to Islamabad in October, with an average price of AED 588. Conversely, traveling with Pakistan International Airlines from Karachi to Islamabad in September will be the most expensive, with an average cost of AED 790. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Weekly Pakistan International Airlines flight availability from Karachi to Islamabad

The most Pakistan International Airlines flights from KHI to ISB are scheduled on a Wednesday (3 on average). You will have fewer Pakistan International Airlines flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

In terms of precipitation, rainfall in Islamabad ranges from 10.0 - 250.0 inches per month. July is typically the wettest month, when rainfall can reach 250.0 mm. November is typically the driest time to visit Islamabad when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Islamabad, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 31.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 10.0 C).

Find Pakistan International Airlines Flights from Karachi to Islamabad

Pakistan International Airlines flights from Karachi to Islamabad in 2026

Popular in	December
Cheapest in	February
Average price (all airlines)	AED 665

Highest demand for flights from Karachi Quaid-E-Azam Intl to Islamabad Intl; 7% potential price increase.

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The best time to book a flight to Islamabad with Pakistan International Airlines is 12 days before departure. On average, fares are higher if you book on the same day as departure.

Which month is the cheapest to fly Economy class from Karachi to Islamabad?

For Economy class flights, the cheapest month to fly this route is October. The most expensive months are September and December.

Best time to book a flight from Karachi to Islamabad

Have a flexible travel schedule? Discover the best time to fly to Islamabad from Karachi with our price prediction graph.

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Pakistan International Airlines flights from Karachi to Islamabad in 2026

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Average price (all airlines)

When is the best time to book a flight to Islamabad with Pakistan International Airlines?

The best time to book a flight to Islamabad with Pakistan International Airlines is 12 days before departure. On average, fares are higher if you book on the same day as departure.

Which month is the cheapest to fly Economy class from Karachi to Islamabad?

For Economy class flights, the cheapest month to fly this route is October. The most expensive months are September and December.

Weekly Pakistan International Airlines flight availability from Karachi to Islamabad

The most Pakistan International Airlines flights from KHI to ISB are scheduled on a Wednesday (3 on average). You will have fewer Pakistan International Airlines flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Islamabad by month

In terms of precipitation, rainfall in Islamabad ranges from 10.0 - 250.0 inches per month. July is typically the wettest month, when rainfall can reach 250.0 mm. November is typically the driest time to visit Islamabad when rainfall is around 10.0 mm.

Temperature in Islamabad by month

Best time to book a flight from Karachi to Islamabad

Have a flexible travel schedule? Discover the best time to fly to Islamabad from Karachi with our price prediction graph.

Browse thousands of different options on Cheapflights for your next trip

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Fly from Karachi to Islamabad on another airline

Consider alternative airlines that service the Islamabad area. Flight routes are based on user searches made on Cheapflights and were last updated on 27 August 2026.

Complete your trip

Complete your trip to Islamabad by adding a car rental and/or hotel reservation to your travel itinerary.

Other popular destinations in Asia

If Islamabad is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 27 August 2026.

Popular flights from Pakistan International Airlines

Browse through some of the most popular routes that Pakistan International Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 27 August 2026.

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Pakistan International Airlines flights from Karachi to Islamabad (KHI - ISB)

Pakistan International Airlines flights from Karachi to Islamabad in 2026

Popular in

Cheapest in

Average price (all airlines)

When is the best time to book a flight to Islamabad with Pakistan International Airlines?

The best time to book a flight to Islamabad with Pakistan International Airlines is 12 days before departure. On average, fares are higher if you book on the same day as departure.

Which month is the cheapest to fly Economy class from Karachi to Islamabad?

For Economy class flights, the cheapest month to fly this route is October. The most expensive months are September and December.

Weekly Pakistan International Airlines flight availability from Karachi to Islamabad

The most Pakistan International Airlines flights from KHI to ISB are scheduled on a Wednesday (3 on average). You will have fewer Pakistan International Airlines flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Islamabad by month

In terms of precipitation, rainfall in Islamabad ranges from 10.0 - 250.0 inches per month. July is typically the wettest month, when rainfall can reach 250.0 mm. November is typically the driest time to visit Islamabad when rainfall is around 10.0 mm.

Temperature in Islamabad by month

Best time to book a flight from Karachi to Islamabad

Have a flexible travel schedule? Discover the best time to fly to Islamabad from Karachi with our price prediction graph.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Karachi to Islamabad on another airline

Consider alternative airlines that service the Islamabad area. Flight routes are based on user searches made on Cheapflights and were last updated on 27 August 2026.

Complete your trip

Complete your trip to Islamabad by adding a car rental and/or hotel reservation to your travel itinerary.

Other popular destinations in Asia

If Islamabad is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 27 August 2026.

Popular flights from Pakistan International Airlines

Browse through some of the most popular routes that Pakistan International Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 27 August 2026.

See what others are saying about Pakistan International Airlines

Overview

Recent reviews

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