PIT - IAD

$55 Find Cheap Flights from Pittsburgh to Washington Dulles Airport - Compare and Save

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 9/9. 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, 0 bags

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
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Everything you should know

Cheapest round-trip
$161
Typical prices: $259-$137
Southern / Mokulele
Thu 8/6Mon 8/10
PIT - IAD • 1 stop
Cheapest non-stop
$168
Typical prices: $357-$237
United Airlines
Tue 8/4Thu 8/13
PIT - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa Economy Flex adds free rebooking and refunds for flexible trips.
At PIT, allow extra time for construction before your Washington Dulles flight.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $161 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 1h 14m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $123 (round-trip)
Shortest trip • 3h 06m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Expert advice
Flight 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

Thu, Aug 6 - Mon, Aug 10
Southern / Mokulele Logo
11:55 am - 4:13 pm
PIT
-
IAD
4h 18m
1 stop
Southern / Mokulele Logo
12:50 pm - 5:07 pm
IAD
-
PIT
4h 17m
1 stop
$161Southern / Mokulele
Thu, Aug 6 - Mon, Aug 10
Southern / Mokulele Logo
11:55 am - 4:13 pm
PIT
-
IAD
4h 18m
1 stop
Southern / Mokulele Logo
12:50 pm - 5:07 pm
IAD
-
PIT
4h 17m
1 stop
$162Southern / Mokulele
Thu, Aug 6 - Mon, Aug 10
Southern / Mokulele Logo
11:55 am - 4:13 pm
PIT
-
IAD
4h 18m
1 stop
Southern / Mokulele Logo
12:50 pm - 5:07 pm
IAD
-
PIT
4h 17m
1 stop
$163Southern / Mokulele
Thu, Aug 6 - Mon, Aug 10
Southern / Mokulele Logo
11:55 am - 4:13 pm
PIT
-
IAD
4h 18m
1 stop
Southern / Mokulele Logo
12:50 pm - 5:07 pm
IAD
-
PIT
4h 17m
1 stop
$165Southern / Mokulele
Thu, Aug 6 - Mon, Aug 10
Southern / Mokulele Logo
11:55 am - 4:13 pm
PIT
-
IAD
4h 18m
1 stop
Southern / Mokulele Logo
12:50 pm - 5:07 pm
IAD
-
PIT
4h 17m
1 stop
$166Southern / Mokulele
Fri, Jul 10 - Fri, Jul 17
Southern / Mokulele Logo
11:55 am - 4:13 pm
PIT
-
IAD
4h 18m
1 stop
Southern / Mokulele Logo
8:25 am - 2:22 pm
IAD
-
PIT
5h 57m
1 stop
$168Southern / Mokulele
Mon, Jul 6 - Tue, Jul 14
Southern / Mokulele Logo
11:55 am - 4:13 pm
PIT
-
IAD
4h 18m
1 stop
Southern / Mokulele Logo
8:25 am - 2:22 pm
IAD
-
PIT
5h 57m
1 stop
$169Southern / Mokulele
Sat, Jul 4 - Thu, Jul 9
Southern / Mokulele Logo
8:15 am - 11:21 am
PIT
-
IAD
3h 06m
1 stop
Southern / Mokulele Logo
8:25 am - 2:22 pm
IAD
-
PIT
5h 57m
1 stop
$171Southern / Mokulele
Sun, Jul 5 - Tue, Jul 14
Southern / Mokulele Logo
5:20 pm - 11:21 am
PIT
-
IAD
18h 01m
1 stop
Southern / Mokulele Logo
12:50 pm - 5:07 pm
IAD
-
PIT
4h 17m
1 stop
$172Southern / Mokulele
Fri, Dec 11 - Fri, Jan 1
Southern / Mokulele Logo
8:15 am - 3:58 pm
PIT
-
IAD
7h 43m
1 stop
Southern / Mokulele Logo
1:05 pm - 4:50 pm
IAD
-
PIT
3h 45m
1 stop
$174Southern / Mokulele
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.

How much is a round-trip flight from Pittsburgh to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport departing in August.

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 Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Pittsburgh to Washington Dulles Airport. For your return ticket, we recommend flying on a Saturday and avoiding Mondays 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 $186 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is $517 and $289 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.

No, with an average price for the route of $299, prices are generally cheapest when you fly direct.

Expert advice

Expert advice for your flight from Pittsburgh to Dulles Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

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.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

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.

Matt Meltzer

Matt Meltzer

Expert on PIT

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.

Good to know

Low seasonJanuary
Cheapest flight$55
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 10% lower on average.
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 5 days, the lowest price for a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport was $55 for a one-way ticket and $161 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?

    American Airlines, Delta, JetBlue, Air Canada, and Alaska Airlines offer inflight Wi-Fi service on the Pittsburgh to Washington Dulles Airport flight route.

  • 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 $156 and an overall rating of 6.5.

  • 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 $259 or less one-way and $567 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

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Pittsburgh

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

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 9843 reviews
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

2.0 MediocreLinda, Jun 2026
LIS - IAD
Read more United Airlines reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Both were great flights with wonderful pilots! It was not fancy, very simple. But boarding was super easy and the flight was smooth. Pick up in DFW was at corporate terminal which was the only confusing part for uber but if you call the uber driver and drop a pin they come right to it.

Totally great experience. Would definitely travel with them again. Thanks.

Both my fights got cancelled. Said mechanical issues but on flight tracker the flights came in and left! We were lied to!!

Was very impressed they called to confirm he would be on the flight. Great customer service!

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.

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

Information on your arrival and departure airports