PIT - IAD

$50 Find Cheap Flights from Pittsburgh to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Pittsburgh to Dulles Intl departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Pittsburgh to Washington, D.C., 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 Pittsburgh to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Booking Insights
Flights Deals

Cheap Flights from Pittsburgh to Dulles Intl (PIT-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Pittsburgh to Dulles Intl 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 Pittsburgh to Dulles Intl

Wed, Aug 27 - Wed, Sep 3
Southern / Mokulele Logo
7:40 am - 11:20 amPIT-IAD
3h 40m1 stop
Southern / Mokulele Logo
5:40 pm - 9:28 pmIAD-PIT
3h 48m1 stop
$99Southern / Mokulele
Find Deal
Thu, Sep 11 - Thu, Sep 18
Southern / Mokulele Logo
7:40 am - 11:23 amPIT-IAD
3h 43m1 stop
Southern / Mokulele Logo
5:40 pm - 9:28 pmIAD-PIT
3h 48m1 stop
$103Southern / Mokulele
Find Deal
Tue, Aug 12 - Thu, Aug 14
Southern / Mokulele Logo
7:40 am - 11:26 amPIT-IAD
3h 46m1 stop
Southern / Mokulele Logo
12:55 pm - 5:13 pmIAD-PIT
4h 18m1 stop
$108Southern / Mokulele
Find Deal
Thu, Aug 21 - Sat, Aug 23
Southern / Mokulele Logo
7:40 am - 11:26 amPIT-IAD
3h 46m1 stop
Southern / Mokulele Logo
8:25 am - 2:28 pmIAD-PIT
6h 03m1 stop
$109Southern / Mokulele
Find Deal
Sat, Aug 23 - Mon, Sep 1
United Airlines Logo
2:57 pm - 4:10 pmPIT-IAD
1h 13mnonstop
United Airlines Logo
5:45 pm - 6:48 pmIAD-PIT
1h 03mnonstop
$179United Airlines
Find Deal
Fri, Aug 15 - Mon, Aug 18
United Airlines Logo
8:05 pm - 9:18 pmPIT-IAD
1h 13mnonstop
United Airlines Logo
10:09 pm - 11:15 pmIAD-PIT
1h 06mnonstop
$184United Airlines
Find Deal
Thu, Aug 21 - Sun, Aug 24
Delta Logo
7:31 pm - 10:55 pmPIT-IAD
3h 24m1 stop
Delta Logo
6:00 am - 9:45 amIAD-PIT
3h 45m1 stop
$198Delta
Find Deal
Thu, Aug 21 - Sun, Aug 24
 Logo
8:10 pm - 9:12 pmPIT-IAD
1h 02mnonstop
 Logo
12:55 pm - 5:13 pmIAD-PIT
4h 18m1 stop
Thu, Aug 21 - Sun, Aug 24
 Logo
7:40 am - 11:26 amPIT-IAD
3h 46m1 stop
 Logo
4:56 pm - 5:05 pmIAD-PIT
24h 09m2 stops
Mon, Aug 25 - Wed, Aug 27
Delta Logo
7:05 am - 12:02 pmPIT-IAD
4h 57m1 stop
Delta Logo
6:00 am - 9:45 amIAD-PIT
3h 45m1 stop
$232Delta
Find Deal
Expert advice

Expert advice for your flight from Pittsburgh to Dulles Intl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Lufthansa

Economy Flex offers free rebooking and refundable tickets, ideal for flexible travel plans.


Business Class includes priority boarding and two checked bags, enhancing travel convenience.

Read more about Lufthansaby Jessica Macdonald
United Airlines

United First offers ample legroom with up to seven inches more than economy.


Priority Boarding in Zone 2 helps avoid gate-checking your carry-on bag.

Airports
PIT

Due to construction at PIT, arrive earlier than usual to navigate potential changes and ensure a smooth departure.

Read more about PITby Matt Meltzer
IAD

The Silver Line Metro now connects IAD to downtown D.C., offering a convenient 50-minute ride to the city center.

Read more about IADby Stefanie Waldek
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Matt Meltzer

Matt Meltzer

Expert on PIT

Matt Meltzer

Matt Meltzer

Matt Meltzer has been a travel writer for over a decade, covering U.S. domestic locations and hotels for Thrillist, Fifty Grande, Matador Network, Conde Nast Traveler, and other top publications. He's won multiple travel journalism awards from the Society of American Travel Writers and North American Travel Journalists Association, and currently resides in South Florida.

Read more
Booking Insights

KAYAK's insights & trends for Pittsburgh to Dulles Intl flights

Get data-powered insights and trends into flights from Pittsburgh to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Pittsburgh to Washington Dulles Airport?

The average price of all round-trip flights from Pittsburgh to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Washington Dulles Airport on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Pittsburgh to Washington Dulles Airport. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Pittsburgh to Washington, D.C. Dulles Intl Airport, 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 Pittsburgh to Washington, D.C. Dulles Intl Airport is August, where tickets cost $158 (return) on average. On the other hand, the most expensive months are January and November, where the average cost of round-trip tickets is $279 and $260 respectively.

Can I save money by flying with a layover from Pittsburgh to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $161 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Pittsburgh to Washington, D.C. Dulles Intl Airport, 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 Pittsburgh to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$50
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly with an average 14% increase in price.
Flight from Pittsburgh to Washington Dulles Airport

When to book flights from Pittsburgh to Dulles Intl

Are your dates flexible? Find out the best times to travel from Pittsburgh to Dulles Intl 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 Pittsburgh to Washington Dulles Airport flights

  • What is the cheapest flight from Pittsburgh to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport was $50 for a one-way ticket and $99 for a round-trip.

  • Do I need a passport to fly between Pittsburgh and Washington Dulles Airport?

    A passport is not required to fly from Pittsburgh to Washington Dulles Airport.

  • Which airports will I be using when flying from Pittsburgh to Washington Dulles Airport?

    When flying out of Pittsburgh you will be using Pittsburgh. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Pittsburgh to Washington Dulles Airport?

    All the following airlines offer inflight Wi-Fi service on the Pittsburgh to Washington Dulles Airport flight route: American Airlines, JetBlue, Delta, Air Canada, Japan Airlines, KLM, and Lufthansa.

  • Which aircraft models fly most regularly from Pittsburgh to Washington Dulles Airport?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Pittsburgh to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Pittsburgh to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Pittsburgh and Washington Dulles Airport.

  • On which days can I fly direct from Pittsburgh to Washington Dulles Airport?

    There are nonstop flights from Pittsburgh to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Pittsburgh to Washington, D.C., United Airlines or Southern / Mokulele?

    The two airlines most popular with KAYAK users for flights from Pittsburgh to Washington, D.C. are United Airlines and Southern / Mokulele. With an average price for the route of $275 and an overall rating of 7.4, United Airlines is the most popular choice. Southern / Mokulele is also a great choice for the route, with an average price of $141 and an overall rating of 6.4.

  • How does KAYAK find such low prices on flights from Pittsburgh to Washington Dulles Airport?

    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 Pittsburgh to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pittsburgh to Washington Dulles Airport?

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

  • What is the Hacker Fare option on flights from Pittsburgh to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Pittsburgh with another airline. Booking your flights between Pittsburgh and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pittsburgh to Washington Dulles Airport?

    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 Washington Dulles Airport from Pittsburgh 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 Pittsburgh to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $243 or less one-way and $633 or less round-trip.

Prefer to fly direct from Pittsburgh to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Pittsburgh to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Pittsburgh Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Pittsburgh to Washington, D.C. Dulles Intl

Monday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Tuesday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Wednesday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Thursday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Friday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Saturday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Sunday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Pittsburgh

Monday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Tuesday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Wednesday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Thursday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Friday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Saturday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Sunday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

See more direct flights

Reviews of the top airlines flying from Pittsburgh to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Pittsburgh to Washington, D.C.. 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 Pittsburgh to Dulles Intl? 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
United AirlinesOverall score based on 8896 reviews
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

8.0 ExcellentHal, Jul 2025FRA - IAD
Read more United Airlines reviews

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

We had a wonderful flight due to the care of our experienced pilot and copilot and the magnificent air views from our comfortable seats. What excitement to be in such a small plane with such magnificent around us.

Multiple time changes, then we left earlier than we were told.

Communication could be better but the staff and crew were over the top friendly and helpful, The flight itself was smooth.

flight was cancelled literally at 10pm the night before an early morning flight with hardly any time to reschedule. Will never book with kayak again.

My flight was cancelled 12 hours before takeoff. I was not able to reschedule another flight to make connections and had to cancel the entire trip. The ticket that was supposed to replace the cancelled flight had no boarding pass and I was unable to get one at the airport so I was denied access to the rescheduled flight. I was refunded but I missed my daughter's birthday.

I had a family emergency and couldn’t make the flight, and they wouldn’t let me cancel/refund it (a *month* ahead of time), were especially difficult with me on the phone, and wouldn’t let me even so much as reschedule the flight or get credit.

Flight was cancelled, communication was poor and should have canceled flight much earlier.

Flight was cancelled twice. Moved four more times. Probably the least timely and poorly run airline I have ever experienced in my life. I have traveled hundreds of times to dozens of countries and this one takes the cake.

Excellent crew, good flight. Flight was delayed about 1 1/2 hours though.

Pros: "The ground crew and flight crew were great."
Cons: "Would have appreciated easier steps (lower risers) for boarding. Arthritic knee makes it hard for me to manage the high risers between steps. Also having armrests would have made the flight more comfortable."

Everything you need to know for your flight from Pittsburgh to Dulles Intl

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.