£69 Cheap Flights from Pittsburgh (PIT) to Washington (IAD)

View £69 flight on Tue, 30 Jun 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £69 for one-way flights and £137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southern Airways Express
Thu, 11 Jun - Thu, 18 Jun
PIT
Pittsburgh
IAD
Washington
£137 Return, found 1 day ago
£137
Return
found 1 day ago
Select Southern Airways Express flight, departing Thu, 11 Jun from Pittsburgh to Washington, returning Thu, 18 Jun, priced at £137 found 1 day ago
Southern Airways Express
Thu, 11 Jun - Thu, 18 Jun
PIT
Pittsburgh
IAD
Washington
£140 Return, found 1 day ago
£140
Return
found 1 day ago
Select Southern Airways Express flight, departing Thu, 11 Jun from Pittsburgh to Washington, returning Thu, 18 Jun, priced at £140 found 1 day ago
Southern Airways Express
Mon, 14 Sept - Tue, 15 Sept
PIT
Pittsburgh
IAD
Washington
£142 Return, found 3 days ago
£142
Return
found 3 days ago
Select Southern Airways Express flight, departing Mon, 14 Sept from Pittsburgh to Washington, returning Tue, 15 Sept, priced at £142 found 3 days ago
Southern Airways Express
Thu, 11 Jun - Thu, 18 Jun
PIT
Pittsburgh
IAD
Washington
£143 Return, found 1 day ago
£143
Return
found 1 day ago
Select Southern Airways Express flight, departing Thu, 11 Jun from Pittsburgh to Washington, returning Thu, 18 Jun, priced at £143 found 1 day ago
Southern Airways Express
Sat, 5 Sept - Mon, 7 Sept
PIT
Pittsburgh
IAD
Washington
£143 Return, found 5 days ago
£143
Return
found 5 days ago
Select Southern Airways Express flight, departing Sat, 5 Sept from Pittsburgh to Washington, returning Mon, 7 Sept, priced at £143 found 5 days ago
Southern Airways Express
Tue, 5 May - Fri, 8 May
PIT
Pittsburgh
IAD
Washington
£160 Return, found 5 days ago
£160
Return
found 5 days ago
Select Southern Airways Express flight, departing Tue, 5 May from Pittsburgh to Washington, returning Fri, 8 May, priced at £160 found 5 days ago
Southern Airways Express
Tue, 5 May - Fri, 8 May
PIT
Pittsburgh
IAD
Washington
£175 Return, found 5 days ago
£175
Return
found 5 days ago
Select Southern Airways Express flight, departing Tue, 5 May from Pittsburgh to Washington, returning Fri, 8 May, priced at £175 found 5 days ago
Southern Airways Express
Sun, 17 May - Tue, 26 May
PIT
Pittsburgh
IAD
Washington
£176 Return, found 2 days ago
£176
Return
found 2 days ago
Select Southern Airways Express flight, departing Sun, 17 May from Pittsburgh to Washington, returning Tue, 26 May, priced at £176 found 2 days ago
Southern Airways Express
Sun, 17 May - Tue, 26 May
PIT
Pittsburgh
IAD
Washington
£179 Return, found 2 days ago
£179
Return
found 2 days ago
Select Southern Airways Express flight, departing Sun, 17 May from Pittsburgh to Washington, returning Tue, 26 May, priced at £179 found 2 days ago
Alaska Airlines
Wed, 17 Jun - Wed, 24 Jun
PIT
Pittsburgh
IAD
Washington
£421 Return, found 1 day ago
£421
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 17 Jun from Pittsburgh to Washington, returning Wed, 24 Jun, priced at £421 found 1 day ago

Alternative airports near Washington

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

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city centre is 36 minutes. Flights from £176
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city centre36 min
Flights from £176

Frequently asked questions

How much does a flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
One-way flights typically cost between £115 and £443 and return flights often range between £115 and £443. 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 Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
January is typically the cheapest month to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.), with average return fares of approximately £182. This is about 5% lower than the average price throughout the year. January often sees lower prices as it falls after the busy holiday season, when travel demand tends to decrease. Other cheap months to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) include April and September.
Which airlines fly direct from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter PIT to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
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-Pittsburgh Intl.) (PIT) to Washington, DC (IAD-Washington Dulles Intl.) (IAD) will differ from traveller to traveller. If you like to fly early, UA offers early morning flights. If price is the most important factor, UA typically offers the lowest fares. DL offers the most daily flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) (PIT) to Washington, DC (IAD-Washington Dulles Intl.) (IAD), which is brilliant 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.)?
Based on booking data from the past year, the cheapest months to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) are typically January and September, with average return flights around £182. However, the most popular months for this route are December and July. Since there isn't an overlap between the cheapest and most popular months, you'll need to decide what's most important for your trip. If saving money is your priority, aim for January or September. If you prefer to travel when there are plenty of flight options and a lively atmosphere, December and July might be better, though you can expect to pay a bit more.
How many flights per day from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
There are approximately 5 nonstop flights per day from Pittsburgh Intl. (PIT) to Washington Dulles Intl. (IAD). For even more choice, look at flights that include layovers, as there are around 30 connecting flights per day. Some common connection points include Hartsfield-Jackson Atlanta Intl. (ATL), Detroit Metropolitan Wayne County (DTW), and Charlotte-Douglas Intl. (CLT).
What is the earliest flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) typically departs at approximately 5:00 AM local time, operated by American Airlines. This is a seasonal service active in December. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll typically find the most flights from Pittsburgh Intl. (PIT) to Washington Dulles Intl. (IAD) on a Thursday, with around 27 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta Air Lines, United Airlines, and American Airlines. Flight schedules are consistent throughout the week, so you'll find a good selection of flights on most days.
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-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.) are in the early morning, from 6am to 9am. About 32% of passengers prefer this time. Many major carriers, including Delta, United Airlines and American Airlines, offer flights during this window. This timing works well because it allows you to start your travel day early and arrive in Washington, DC with plenty of time for your activities.
How long does it take to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
A nonstop flight from PIT to IAD typically takes around 1 hour 20 minutes, covering approximately 183 miles. Connecting flights on this route usually add 2 hours 40 minutes to your travel time. 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.)?
Select the "Business class" and "First class" filters when looking for PIT to IAD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
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)?
From Pittsburgh Intl. (PIT), you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD) in Washington. 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.) flight and hotel package 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.
Return price
£136
Distance
293 km
Average flight time
1 hour 11 mins

Book with confidence

Compare flights from Pittsburgh to Washington easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Pittsburgh to Washington. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Washington Dulles Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Pittsburgh Intl. to Washington Dulles Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Pittsburgh Intl. (PIT) to Washington Dulles Intl. (IAD)

The easiest way to view the best deals on flights from Pittsburgh to Washington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Pittsburgh Intl. to Washington Dulles Intl. start at just £137 and range up to £421.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Pittsburgh and Washington
  • booking your flight during June, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Pittsburgh to Washington flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Pittsburgh Intl. to Washington Dulles Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Pittsburgh to Washington easily and book with confidence

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