Cheap Flights from Washington (IAD) to Islamabad (ISB)

View AU$709 flight on Thu, 30 Oct. 2025Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Benazir Bhutto Intl. Airport (ISB)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Washington (IAD) to Islamabad (ISB)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Washington (IAD) to Islamabad (ISB)

March is typically the cheapest month to fly

From AU$1,120 - AU$1,858 per traveller.

Graph displaying average flight prices per month

Flight from Washington to Islamabad route information
Origin airport
Washington Dulles Intl.
Destination airport
Islamabad Intl.
Distance
11323 km

Your quick guide to flights from Washington to Islamabad

Pick up great flights from Washington to Islamabad

With Expedia, you have your pick of flights a day with 13 airlines covering flights from Washington to Islamabad. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Washington to Islamabad that take around hours.

Find cheap flights from Washington to Islamabad

From the great flight deals with prices currently ranging from to , you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Washington to Islamabad around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Islamabad is normally in .

Reasons to book your flight from Washington to Islamabad with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Washington to Islamabad across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Islamabad right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Washington Dulles Intl. Airport (IAD) to Islamabad Intl. Airport (ISB)?
If you're travelling between Washington Dulles Intl. Airport (IAD) and Islamabad Intl. Airport (ISB), round-trip journeys start from . This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to Islamabad Intl. Airport?
We understand that things crop up unexpectedly, so we've made it as hassle-free as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Dulles Intl. Airport to ISB that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Washington Dulles Intl. Airport (IAD) to ISB flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Dulles Intl. Airport to Islamabad Intl. Airport (ISB)?
With a flight distance of 11 400 kilometres from Dulles Intl. Airport to ISB, this is a long trip. Ensure that you drink plenty of water and move your legs from time to time.
Which airlines fly direct from Dulles Intl. Airport to ISB?
You won't find any airlines operating directly between IAD and ISB, so be ready to make at least one stop on your journey. A layover, whether short or long, can be a good way to break up a trip!
Are Washington Dulles Intl. Airport (IAD) to Islamabad Intl. Airport (ISB) flight tickets cheaper when they're purchased at the last minute?
Flight prices change all the time, so it's no sure thing. While last-minute flight deals between IAD and Islamabad International Airport are possible, it's also a good idea to keep a close eye on prices well before you fly. In fact, some carriers announce their prices up to 12 months prior to the departure date. Expedia is continuously updating the best bargains around, so keep checking back and be ready to grab your seat when the fares dip.

Explore a world of travel with Expedia

*Available to Expedia members.