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$85 Cheap Flights from Pittsburgh (PIT) to Washington (IAD)

View $85 flight on Mon, Aug 17, 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 $85 for one-way flights and $117 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Sep 5 - Sun, Sep 6
PIT
Pittsburgh
IAD
Washington
$117 Roundtrip, found 20 hours ago
$117
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Sep 5 from Pittsburgh to Washington, returning Sun, Sep 6, priced at $117 found 20 hours ago
United
Sat, Sep 5 - Sun, Sep 6
PIT
Pittsburgh
IAD
Washington
$140 Roundtrip, found 20 hours ago
$140
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Sep 5 from Pittsburgh to Washington, returning Sun, Sep 6, priced at $140 found 20 hours ago
Delta
Sat, Sep 5 - Sun, Sep 6
PIT
Pittsburgh
IAD
Washington
$157 Roundtrip, found 20 hours ago
$157
Roundtrip
found 20 hours ago
Select Delta flight, departing Sat, Sep 5 from Pittsburgh to Washington, returning Sun, Sep 6, priced at $157 found 20 hours ago
Southern Airways Express
Fri, Aug 28 - Sun, Aug 30
PIT
Pittsburgh
IAD
Washington
$169 Roundtrip, just found
$169
Roundtrip
just found
Select Southern Airways Express flight, departing Fri, Aug 28 from Pittsburgh to Washington, returning Sun, Aug 30, priced at $169 just found
Southern Airways Express
Fri, Oct 16 - Tue, Oct 20
PIT
Pittsburgh
IAD
Washington
$177 Roundtrip, found 6 days ago
$177
Roundtrip
found 6 days ago
Select Southern Airways Express flight, departing Fri, Oct 16 from Pittsburgh to Washington, returning Tue, Oct 20, priced at $177 found 6 days ago
Southern Airways Express
Fri, Nov 27 - Mon, Nov 30
PIT
Pittsburgh
IAD
Washington
$177 Roundtrip, just found
$177
Roundtrip
just found
Select Southern Airways Express flight, departing Fri, Nov 27 from Pittsburgh to Washington, returning Mon, Nov 30, priced at $177 just found
Southern Airways Express
Mon, Nov 2 - Mon, Nov 9
PIT
Pittsburgh
IAD
Washington
$178 Roundtrip, found 4 days ago
$178
Roundtrip
found 4 days ago
Select Southern Airways Express flight, departing Mon, Nov 2 from Pittsburgh to Washington, returning Mon, Nov 9, priced at $178 found 4 days ago
United
Sat, Sep 5 - Sun, Sep 6
PIT
Pittsburgh
IAD
Washington
$183 Roundtrip, found 20 hours ago
$183
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Sep 5 from Pittsburgh to Washington, returning Sun, Sep 6, priced at $183 found 20 hours ago
American Airlines
Fri, Aug 28 - Sun, Aug 30
PIT
Pittsburgh
IAD
Washington
$269 Roundtrip, just found
$269
Roundtrip
just found
Select American Airlines flight, departing Fri, Aug 28 from Pittsburgh to Washington, returning Sun, Aug 30, priced at $269 just found
Alaska Airlines
Sat, Sep 5 - Fri, Sep 11
PIT
Pittsburgh
IAD
Washington
$771 Roundtrip, found 3 hours ago
$771
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Pittsburgh to Washington, returning Fri, Sep 11, priced at $771 found 3 hours 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 $235
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $235

What you need to know for your flight from Pittsburgh Intl. to Washington Dulles Intl.

Pittsburgh (PIT) to Washington (IAD) at a glance

Travel between Pittsburgh (PIT) and Washington (IAD) with a selection of airlines offering convenient routes on this domestic short-haul journey. Explore various options, from full-service carriers to budget-friendly choices, to find the best itinerary that suits your budget and schedule. Discover the essential information for flights from Pittsburgh International Airport (PIT) to Washington Dulles International Airport (IAD) as you plan your visit to the vibrant sights and neighborhoods of Washington.

  • Fastest flight duration: around 1h 15m non-stop
  • Route distance: roughly 200 miles (320 km)
  • Flights per week: around 13 departures on average
  • Typical fares (one-way): economy tickets often range from $70–$315, depending on seasonality and how far ahead you book

Flights from Pittsburgh International Airport (PIT) to Washington Dulles International Airport (IAD)

Based on recent traveler bookings, here are the top airlines favored for flights from Pittsburgh to Washington, especially for non-stop and one-stop options. Popular layover locations include DuBois Regional Airport (DUJ) with about a 2-hour layover, Bradford Regional Airport (BFD) at approximately 1 hour, and Lancaster Airport (LNS) with about a 1 hour and 15-minute layover. This variety allows you to balance price, total travel time, and cabin class to create the best itinerary for your journey.

  • United: This full-service airline provides non-stop flights, with one-way ticket prices generally between $90 and $360. It constitutes around 65% of the departures for this route, featuring a total travel duration of 1 hour and 15 minutes.
  • Southern Airways: Operating as a full-service carrier, Southern Airways offers one-stop services with one-way fares typically ranging from $70 to $180. It represents about 33% of the departures, with an in-flight time of 2 hours and 30 minutes and a complete journey time of approximately 3 hours and 45 minutes, including the layover.
  • Delta: Delta, another full-service airline, provides one-stop service with fares usually falling between $100 and $335 for one-way journeys. It comprises roughly 2% of the departures on this route, with an in-flight duration of 2 hours and 30 minutes and a total travel time of around 3 hours and 45 minutes, factoring in the layover.

Travelers flying from Pittsburgh to Washington can enhance their journey by upgrading to first-class service offered by United on this route.

Best time to fly from Pittsburgh (PIT) to Washington (IAD)

The most popular months for travelers flying from Pittsburgh to Washington are February, March, and April, when peak temperatures in Washington reach up to 55°F in April. If you prefer quieter travel, consider July, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 78.4°F. For better deals, February usually offers the lowest average one-way fare around $138. Flight availability peaks in December, with approximately 18 flights per week, making it easier to find convenient departure times. August has the fewest flights, with approximately 11 flights per week.

  • Cheapest time to fly: February usually offers good deals with average one-way fare around $138, roughly 9% cheaper than the yearly average.
  • More budget-friendly months to fly: July, April, and December typically offer average one-way fares of around $144.
  • Most flight options: December has the highest number of flights from Pittsburgh to Washington, with approximately 18 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January33.6°F (0.9°C)Average12$171
February36.9°F (2.7°C)Moderately High14$138
March44.4°F (6.9°C)Moderately High13$148
April55.0°F (12.8°C)Moderately High13$142
May64.6°F (18.1°C)Average12$147
June73.2°F (22.9°C)Moderately Low12$166
July78.4°F (25.8°C)Moderately Low12$142
August76.3°F (24.6°C)Moderately Low11$149
September69.6°F (20.9°C)Average14$150
October58.5°F (14.7°C)Average14$170
November46.2°F (7.9°C)Average13$163
December39.2°F (4.0°C)Average18$146

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Pittsburgh (PIT) to Washington (IAD)

  • Pittsburgh to Manassas (PIT-MNZ): Manassas Regional Airport (MNZ) lies approximately 16 miles from Washington Dulles International Airport (IAD).

How to find the best prices for flights from Pittsburgh (PIT) to Washington (IAD)

Getting some of the best deals on flights from Pittsburgh to Washington is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are often available when booking within two weeks, which coincides with when most travelers make their reservations. Additionally, morning departures between 5 a.m. and 12 p.m. typically offer lower prices and are the most sought-after flight times. Moreover, flying on Fridays not only provides better prices but is also the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Washington Dulles International Airport from Pittsburgh International Airport

Washington welcomes travelers from Pittsburgh with a range of transport options based on price, convenience, and proximity. Washington city center is approximately a 40-minute drive (covering about 29 miles) from Washington Dulles International Airport, depending on traffic. Here's how to reach Washington efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Washington, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Washington Dulles International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Washington Dulles International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Washington Dulles International Airport, the Washington Dulles International Airport Metrorail Station (a metro station) is conveniently located just 0.2 miles away on foot, providing easy access to public transport.

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 $85 and cheap return flights from $117 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
$117
Distance
183 mi
Average flight time
1 hour 9 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 September. 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 $85 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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