$49 Cheap Flights from Pittsburgh (PIT) to Washington (IAD)

View $49 flight on Tue, Sep 1, 2026Opens 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 $49 for one-way flights and $97 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jun 24 - Wed, Jul 1
PIT
Pittsburgh
IAD
Washington
$97 Roundtrip, found 1 day ago
$97
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jun 24 from Pittsburgh to Washington, returning Wed, Jul 1, priced at $97 found 1 day ago
United
Wed, Jun 3 - Wed, Jun 10
PIT
Pittsburgh
IAD
Washington
$110 Roundtrip, found 16 hours ago
$110
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Jun 3 from Pittsburgh to Washington, returning Wed, Jun 10, priced at $110 found 16 hours ago
United
Tue, Jun 23 - Wed, Jul 1
PIT
Pittsburgh
IAD
Washington
$117 Roundtrip, found 2 days ago
$117
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jun 23 from Pittsburgh to Washington, returning Wed, Jul 1, priced at $117 found 2 days ago
United
Wed, Jun 24 - Wed, Jul 1
PIT
Pittsburgh
IAD
Washington
$131 Roundtrip, found 1 day ago
$131
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jun 24 from Pittsburgh to Washington, returning Wed, Jul 1, priced at $131 found 1 day ago
United
Tue, Jun 9 - Wed, Jun 10
PIT
Pittsburgh
IAD
Washington
$138 Roundtrip, found 4 days ago
$138
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jun 9 from Pittsburgh to Washington, returning Wed, Jun 10, priced at $138 found 4 days ago
Southern Airways Express
Wed, Apr 22 - Sun, Apr 26
PIT
Pittsburgh
IAD
Washington
$142 Roundtrip, found 5 days ago
$142
Roundtrip
found 5 days ago
Select Southern Airways Express flight, departing Wed, Apr 22 from Pittsburgh to Washington, returning Sun, Apr 26, priced at $142 found 5 days ago
United
Tue, Jun 16 - Fri, Jun 19
PIT
Pittsburgh
IAD
Washington
$147 Roundtrip, found 5 days ago
$147
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jun 16 from Pittsburgh to Washington, returning Fri, Jun 19, priced at $147 found 5 days ago
Delta
Wed, May 6 - Fri, May 15
PIT
Pittsburgh
IAD
Washington
$156 Roundtrip, found 3 days ago
$156
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, May 6 from Pittsburgh to Washington, returning Fri, May 15, priced at $156 found 3 days ago
American Airlines
Wed, Jul 1 - Sat, Jul 4
PIT
Pittsburgh
IAD
Washington
$259 Roundtrip, found 8 hours ago
$259
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Wed, Jul 1 from Pittsburgh to Washington, returning Sat, Jul 4, priced at $259 found 8 hours ago
Alaska Airlines
Tue, Sep 22 - Fri, Sep 25
PIT
Pittsburgh
IAD
Washington
$641 Roundtrip, found 2 days ago
$641
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Sep 22 from Pittsburgh to Washington, returning Fri, Sep 25, priced at $641 found 2 days ago

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 $425
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $425

Frequently asked questions

How much does a flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from $49 and cheap return flights from $97 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights typically cost between $111 and $597, and return flights often range between $230 and $2263. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
January is the cheapest month to fly from Pittsburgh, PA (PIT) to Washington, DC (IAD), with average round-trip fares around $244. This price is about 5% lower than the average throughout the year, as January typically experiences lower travel demand after the holiday season. Other affordable months to consider are April and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
United offers around 40 weekly direct flights from PIT to IAD.
What is the cheapest airline that flies from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
United is one of the cheapest airlines offering nonstop flights from Pittsburgh, PA (PIT) to Washington, DC (IAD), starting from around $312 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best airline to fly with from Pittsburgh, PA (PIT) to Washington, DC (IAD) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. Delta offers the most daily flights from PIT to IAD, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
When flying from Pittsburgh (PIT) to Washington, DC (IAD), January and September are the best months to consider. January is the cheapest month with return flights averaging around $244, while September is popular for travel. Choosing these months can help you save money while still enjoying a variety of flight options.*Prices based on flights available on Expedia in the last year.
How many flights per day from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
On average, there are around 6 nonstop flights per day from Pittsburgh Intl. (PIT) to Washington Dulles Intl. (IAD). For more options, look at flights that include layovers.
What is the earliest flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Pittsburgh International Airport (PIT) to Washington Dulles International Airport (IAD) usually departs at around 5:00 AM, operated by American Airlines. This seasonal service is active in December, making it a great option for early risers looking to reach the capital quickly. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Pittsburgh, PA (PIT) to Washington, DC (IAD) are in the early morning, from 6am to 9am. This time window accounts for about 31% of total traffic. Many major carriers, including Delta and United, offer flights during this period. This timing is favored because it allows you to arrive in Washington early, giving you a full day to explore the city.
How long does it take to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Flying nonstop from PIT to IAD takes around 1 hour 20 minutes, with the route covering approximately 183 miles. Flights with a layover typically take 3 hours 10 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You can fly first class between PIT and IAD. First class cabins are available on:

  • Delta Air Lines
  • United Airlines
  • American Airlines

How much is a business class flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
A direct, return business class ticket from Pittsburgh (PIT) to Washington, DC (IAD) typically costs between $612 - $640. A non-stop, one-way business class flight is usually around $313 - $738. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Pittsburgh Intl. (PIT)?
When traveling from Pittsburgh Intl. (PIT) to Washington, you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Nashville Intl. (BNA), Charlotte-Douglas Intl. (CLT), Midway Intl. (MDW) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) Fairfax County Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals 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, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Pittsburgh Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southern Airways Express, United
Roundtrip price
$97
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 June. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $49 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

*Flight schedules are subject to change.

*Available to One Key members.

 

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