IAD - ISB

Find cheap flights from Washington, D.C. to Islamabad

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Islamabad

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Islamabad, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Islamabad, as well as popular online travel agencies
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Cheap Flights from Washington, D.C. to Islamabad (IAD-ISB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Islamabad that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Islamabad

Multiple Airlines Logo
IAD-ISB
18319 kmmulti-stop
Multiple Airlines Logo
ISB-IAD
18319 kmmulti-stop
Multiple Airlines
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Booking Insights

KAYAK's insights & trends for Washington, D.C. to Islamabad flights

Get data-powered insights and trends into flights from Washington, D.C. to Islamabad to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Islamabad?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Islamabad, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Islamabad is September, where tickets cost C$ 1,090 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is C$ 1,926 and C$ 1,722 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Islamabad?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Islamabad, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Islamabad, you should book around 3 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

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Good to know

Low seasonFebruary
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 4% lower on average.

When to book flights from Washington, D.C. to Islamabad

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Islamabad based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington, D.C. to Islamabad flights

  • What different kinds of flights can I expect to find between Washington, D.C. and Islamabad?

    Due to the distance between the two cities, direct flights from Washington, D.C. to Islamabad are not offered. Instead, you can plan on having between one and three layovers before you reach your final destination. Airlines that service flights with just one layover include Etihad and Qatar Airways. Your layover may occur in a place like Abu Dhabi or Doha.

  • What is the best way for me to travel between central Washington, D.C. and Dulles International Airport?

    An easy way to go from central Washington, D.C. and Dulles International Airport is via car, which normally takes around 30 to 35min with minimal traffic. Otherwise, there is public transportation, which includes bus lines 38B and 5A. These buses will get you to IAD in around 1h 25min.

  • What transportation options can I choose from for going from lslamabad International Airport to central Islamabad?

    The best way to go from lslamabad International Airport to central Islamabad is by driving, a trip that typically will last around 30 to 35min in total. Public transportation is not available between these two locations, so taking a taxi or renting a car are your main options.

  • Is there the option of renting a car directly at lslamabad International Airport for travelers?

    It is possible to rent a car from ​​lslamabad International Airport and you will find rental car companies in the main Arrivals terminal. Some of the companies that you can choose to rent from include Ace, Avis, and Sixt.

  • Which aircraft models fly most regularly from Washington, D.C. to Islamabad?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Islamabad?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Islamabad.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Islamabad?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islamabad from Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Islamabad?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islamabad with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Islamabad?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islamabad from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Islamabad

  • One of the largest transportation centers in the Washington, D.C. region, Dulles International Airport (IAD) is also a primary hub for United Airlines, United Express, and Mesa Airlines. Because of this, many of the departing flights from IAD are operated by one of these companies.
  • To access the free Wi-Fi at lslamabad International Airport (ISB), you will need to have a Pakistani mobile number to receive a code. If you do not have a Pakistani mobile number, simply head to one of the information desks in the airport and they will help you connect as an international traveler.
  • Those that want to have a good night’s sleep before an early departure out of Dulles International Airport can always book a room at one of the many nearby hotels. Both the Washington Dulles Airport Marriott and the Westin Washington Dulles Airport are only around a 5min drive away and offer a free shuttle service for guests.
  • If you’re hungry after you have landed at lslamabad International Airport, you can always grab a bite to eat at one of the to-go options that are available. In the main terminal, you will find choices like Bread & Co and Coffee Planet, both of which sell light snacks and drinks.
  • Sit back and relax before you need to begin boarding your plane at Dulles International Airport by going to one of the lounges. There is the United Club that has locations in Concourses C and D, as well as the Virgin Atlantic Clubhouse that is in Concourse A.

Reviews of the top airlines flying from Washington, D.C. to Islamabad

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Islamabad. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Islamabad? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
SAUDIAOverall score based on 627 reviews
7.1Entertainment
7.1Food
7.9Crew
7.6Boarding
7.5Comfort
Airline reviews

It was a disaster. The crew was so rude and had no professionalism. She dropped something onto the floor, then took it from the floor and put it into the food tray. Also, when she got some spilling, she went straight to the toilet, got some tissue and started cleaning the food trolley

2.0 MediocreThomson, Jul 2025RUH - COK
Read more SAUDIA reviews

It was a disaster. The crew was so rude and had no professionalism. She dropped something onto the floor, then took it from the floor and put it into the food tray. Also, when she got some spilling, she went straight to the toilet, got some tissue and started cleaning the food trolley

I cant wait for planes to have shorter rows with more space! otherwise, all fine thankyou

They lost the stroller and car seat which they found after 4 days, and on the way back they damaged the stroller.

Damage lagguage, They lost the stroller and car seat which they found after 4 days, and on the way back they damaged the stroller.

Same situation saudi lost my pram and car seat and damaged lagguage

My gag was left at liayad airport when I landed at jeddah airport 9 am I waited for my bags at jeddah airport till 2.45 pm almost 6 hrs bad very bad

Apart from chaotic boarding - which I totally understand was outside the control of gate staff. It was comfortable mid haul flight. Well done to cabin crew for their patience and hospitality with largely elderly passengers returning from pilgrimage.

The intettainme is old stuff and difficult to get by WiFi and the chair is not comfortable at all although the staff were excellent but beyond their limited

Overall a great experience, no movies were available. Bags were delivered a bit late. Seat controls were not working well. I couldn't make my bed fully flat.

It is almost 7 hours journey ,you should have provided with TV entertainment and mobile charging

It was OK as the seat which we paid for doesn’t have any window. We paid $120 for 3 seats but it’s for nothing. Crew could not help. None of the ports worked so all our phones went dry

I had a terrible experience checking in at the airport for my flight. I booked my ticket initially through Kayak while it was promoted as a ticket that offers a carry on and 2 suit cases. (I have a screen shot as a proof of it) I selected it to buy three tickets and paid online. Couple of minutes later airfare assist which is the OTA offering the ticket called me saying My card declined. So I used a different card that went through. I was surprised that they increased the price ticket by a $167. They said the ticket no longer exists and because my card declined I had to buy a new one. So I did. The day my family and I were traveling I could not check in and when I went to the airport I was shocked to be told my ticket had no bags allowed and must pay $200 per bag for three people 6 bags mean I have to pay $1200. I called the travel agency as I feel I was scammed the confirmation didn’t say anything about the bags and they never told me the new ticket doesn’t not include any bag so they changed it after I selected it on your app without informing me. Very sneaky. The travel agency said they will reimburse me only for one bag person. Which means I still paid $600 I still feel very disappointed to pay such an expense. I have always used Kayak to buy my flight tickets and telling everyone how good your rates and app are however after this I feel I was mislead and paid more for something I should not have to. You allowing such an agency on your platform will surely hurt your reputation and level of integrity. I have all the proofs from the screen shot to the confirmation email from them, the or email offering to reimburse o e bag per person and the $1200 bag fees receipts that I paid on the desk. I must be refund the full amount and I look forward to your response.

The food could be better. Toilets were smelly all along

This flight was a dreamliner so I think the space was ok for the legs, but the option for food was again limited and the crew was same.

Bad. Flight was very uncomfortable with narrow and shallow seats, very little food and water. I will not fly etihad again.

Boarding catastrophic let alone have to claimb the plain rather than using jetway. 5.5 hr delay leaving had to do stop in Lgw for a new crew which further compounded the delay. Connecting flight would not wait and had to pend a night in a hotel. Curiously my seat would not go full flat.

Good. The food was very bad. Except for the chicken rice, rest of the dish went to trash.

In never flown this flight, because my flight coning from Barcelona was delayed.

Seat selection screen while online check-in could include free seats to choose from and show the options before we proceed. Currently, it is auto-allocated and there are no options for free seat selections.

Long way to improve. Toilets not working. Bad handling when flight was canceled

Everything you need to know for your flight from Washington, D.C. to Islamabad

Information on your arrival and departure airports

Washington, D.C. (IAD)
Islamabad (ISB)

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