S$590 Cheap Flights from Washington to Islamabad

View S$590 flight on Sat, 2 May, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Washington to Islamabad (IAD-ISB)

Prices were available within the past 7 days and start at S$590 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Islamabad Intl.
Distance
11323 km

Explore a world of travel with Expedia

*Available to Expedia members.