$84 Cheap Flights from Pittsburgh (PIT) to Washington (IAD)

View $84 flight on Wed, Dec 17, 2025Opens in a new window

Popular airlines from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Pittsburgh to Washington (PIT-IAD)

Prices were available within the past 7 days and start at $84 for one-way flights and $168 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southern Airways Express
Thu, Dec 11 - Sun, Jan 11
PIT
Pittsburgh
IAD
Washington
$168 Roundtrip, just found
$168
Roundtrip
just found
Select Southern Airways Express flight, departing Thu, Dec 11 from Pittsburgh to Washington, returning Sun, Jan 11, priced at $168 just found
United
Wed, Nov 26 - Fri, Nov 28
PIT
Pittsburgh
IAD
Washington
$179 Roundtrip, just found
$179
Roundtrip
just found
Select United flight, departing Wed, Nov 26 from Pittsburgh to Washington, returning Fri, Nov 28, priced at $179 just found
Southern Airways Express
Thu, Dec 11 - Sun, Jan 11
PIT
Pittsburgh
IAD
Washington
$183 Roundtrip, just found
$183
Roundtrip
just found
Select Southern Airways Express flight, departing Thu, Dec 11 from Pittsburgh to Washington, returning Sun, Jan 11, priced at $183 just found
United
Fri, Dec 5 - Sun, Dec 7
PIT
Pittsburgh
IAD
Washington
$187 Roundtrip, found 16 hours ago
$187
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Dec 5 from Pittsburgh to Washington, returning Sun, Dec 7, priced at $187 found 16 hours ago
United
Wed, Nov 26 - Tue, Dec 2
PIT
Pittsburgh
IAD
Washington
$188 Roundtrip, found 1 hour ago
$188
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Nov 26 from Pittsburgh to Washington, returning Tue, Dec 2, priced at $188 found 1 hour ago
United
Sat, Nov 1 - Mon, Nov 3
PIT
Pittsburgh
IAD
Washington
$189 Roundtrip, found 21 hours ago
$189
Roundtrip
found 21 hours ago
Select United flight, departing Sat, Nov 1 from Pittsburgh to Washington, returning Mon, Nov 3, priced at $189 found 21 hours ago
United
Sat, Nov 15 - Sun, Nov 16
PIT
Pittsburgh
IAD
Washington
$190 Roundtrip, just found
$190
Roundtrip
just found
Select United flight, departing Sat, Nov 15 from Pittsburgh to Washington, returning Sun, Nov 16, priced at $190 just found
United
Fri, Dec 12 - Fri, Jan 9
PIT
Pittsburgh
IAD
Washington
$191 Roundtrip, found 2 days ago
$191
Roundtrip
found 2 days ago
Select United flight, departing Fri, Dec 12 from Pittsburgh to Washington, returning Fri, Jan 9, priced at $191 found 2 days ago
Delta
Sat, Nov 15 - Sun, Nov 16
PIT
Pittsburgh
IAD
Washington
$199 Roundtrip, just found
$199
Roundtrip
just found
Select Delta flight, departing Sat, Nov 15 from Pittsburgh to Washington, returning Sun, Nov 16, priced at $199 just found
American Airlines
Sat, Dec 13 - Mon, Dec 15
PIT
Pittsburgh
IAD
Washington
$267 Roundtrip, found 20 hours ago
$267
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sat, Dec 13 from Pittsburgh to Washington, returning Mon, Dec 15, priced at $267 found 20 hours ago

Find the cheapest month to fly from Pittsburgh (PIT) to Washington (IAD)

April is typically the cheapest month to fly

From $138 - $159 per traveler.

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city center is 8 minutes. Flights from $184
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $184

Frequently asked questions

How much does a flight from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD) cost?
Grab a cheap one-way flight from $84 or cheap return flight from $168 from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
Planning your getaway for December is a great way to save, as it's the cheapest month for flights between PIT and IAD. You'll often find the lowest prices during off-peak months.
Which airlines fly direct from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
Catch a nonstop flight with United Airlines and journey straight from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD).
What is the cheapest airline that flies from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PIT to IAD. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
Each day on average, 2 direct flights take off from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD). Select the departure time that fits your schedule best.
What are the most popular departure times for flights from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
The 6 AM departures from PIT to IAD are the busiest. These flights can come with a higher price due to their popularity. If you want to save on your fare, choose a less crowded time to fly.
What day of the week has the most flights from PIT to IAD?
If you fly on a Friday, you'll get the greatest range of choices for flights from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
Catch the earliest flight at around 6:15AM UTC-5, departing from Pittsburgh Intl. Airport (PIT). You'll be in the air for around 1h 17m, reaching Washington Dulles Intl. Airport (IAD) at approximately 7:32AM UTC-5.
How long does it take to fly from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
Flights from PIT to IAD have an average travel time of 1 hour and 14 minutes. The distance between these two airports is 180 mi.
What is the best time to fly from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD) route, aim to fly before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Pittsburgh Intl. Airport (PIT)?
Touch down at any one of these Washington airports after your direct flight from Pittsburgh Intl. Airport (PIT):

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until right before your break to book a ticket from PIT to IAD often results in higher prices. While you may find some last-minute discounts, they're not always guaranteed. Be flexible with your itinerary for the best chance of snagging a bargain.
Is it cheaper to book a PIT to IAD flight and hotel package?
Opting for a PIT to IAD flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our extensive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
In most instances, you can cancel or modify your PIT to IAD flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further information, head to our Customer Service portal.

Travel information

Origin airport
Pittsburgh Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, Southern Airways Express, United
Roundtrip price
$162
Distance
183 mi
Average flight time
1 hour 10 mins

Book with confidence

Pittsburgh to Washington Flights

The cheapest times to fly from Pittsburgh to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Pittsburgh to Washington are during the month of December. You can find some of the cheapest flights from Pittsburgh to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Pittsburgh to Washington

Sunday is one of the best days to book for cheap flights from Pittsburgh to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Pittsburgh to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Pittsburgh to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $84 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Pittsburgh to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Pittsburgh to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Pittsburgh to Washington Flights

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*Available to One Key members.