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Dulles Intl

$49+ Cheap flights from Pittsburgh (PIT) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — IAD
Mar 2 — Mar 91
Mon 3/2
Mon 3/9
1 adult, Economy
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Cheap flight deals from Pittsburgh to Dulles Intl

Cheapest flights from Pittsburgh to Dulles Intl
Explore the most affordable flight options available from Pittsburgh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 31, 2026.

This Trip.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:40 am
PIT
-
IAD
1 stop3h 43m
Southern / Mokulele
Mon 3/95:40 pm
IAD
-
PIT
1 stop3h 48m
Southern / Mokulele
Deal found 1/31$130
This Trip.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/137:40 am
PIT
-
IAD
1 stop3h 43m
Southern / Mokulele
Sun 2/155:40 pm
IAD
-
PIT
1 stop3h 48m
Southern / Mokulele
Deal found 1/31$133
This Trip.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:40 am
PIT
-
IAD
1 stop3h 43m
Southern / Mokulele
Sun 3/15:40 pm
IAD
-
PIT
1 stop3h 48m
Southern / Mokulele
Deal found 1/31$134
This Trip.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:40 am
PIT
-
IAD
1 stop3h 43m
Southern / Mokulele
Thu 2/55:40 pm
IAD
-
PIT
1 stop3h 48m
Southern / Mokulele
Deal found 1/31$140
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/411:55 am
PIT
-
IAD
1 stop4h 18m
Southern / Mokulele
Fri 2/68:25 am
IAD
-
PIT
1 stop5h 57m
Southern / Mokulele
Deal found 1/31$167
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:40 am
PIT
-
IAD
1 stop3h 43m
Southern / Mokulele
Thu 2/125:40 pm
IAD
-
PIT
1 stop3h 48m
Southern / Mokulele
Deal found 1/31$168
This Expedia deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/311:55 am
PIT
-
IAD
1 stop4h 18m
Southern / Mokulele
Fri 2/612:50 pm
IAD
-
PIT
1 stop4h 17m
Southern / Mokulele
Deal found 1/30$169
This CheapOair deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:40 am
PIT
-
IAD
1 stop3h 43m
Southern / Mokulele
Sat 4/188:25 am
IAD
-
PIT
1 stop5h 57m
Southern / Mokulele
Deal found 1/31$170
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/268:06 pm
PIT
-
IAD
Nonstop1h 08m
United Airlines
Mon 3/910:05 pm
IAD
-
PIT
Nonstop1h 05m
United Airlines
Deal found 1/30$171
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/110:26 am
PIT
-
IAD
Nonstop1h 07m
United Airlines
Sat 3/78:20 am
IAD
-
PIT
Nonstop1h 06m
United Airlines
Deal found 1/30$175
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2110:26 am
PIT
-
IAD
Nonstop1h 07m
United Airlines
Sun 2/228:15 am
IAD
-
PIT
Nonstop1h 05m
United Airlines
Deal found 1/31$178
This Southern / Mokulele deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/12:55 pm
PIT
-
IAD
1 stop16h 08m
Southern / Mokulele
Sat 3/78:25 am
IAD
-
PIT
1 stop5h 57m
Southern / Mokulele
Deal found 1/30$179

Find flight deals from Pittsburgh to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Pittsburgh (PIT) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(Trip.com)

One-way from

$49
(United Airlines)

Popular in

September

Cheapest in

August

Average price

$279

Good round-trip deal

$345 or less

Good one-way deal

$175 or less
Provider with most accurate pricing for Pittsburgh-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Pittsburgh-Washington, D.C. Dulles Intl flights.
Search Deals
From Pittsburgh to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Pittsburgh to Washington, D.C. Dulles Intl
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Pittsburgh to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Pittsburgh to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Pittsburgh to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 31, 2026.
Use the filters below to find and compare flights from Pittsburgh to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Pittsburgh

Fly to

Dulles Intl

Route

Depart

Return

Price

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Wed 5/6

10:35 am-11:41 am

Nonstop1h 06m

Washington, D.C. Dulles Intl

Sat 5/9

8:30 am-9:31 am

Nonstop1h 01m

$134

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Mon 2/23

10:26 am-11:33 am

Nonstop1h 07m

Washington, D.C. Dulles Intl

Wed 2/25

10:10 pm-11:15 pm

Nonstop1h 05m

$134

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 2/27

7:40 am-11:23 am

1 stop3h 43m

Washington, D.C. Dulles Intl

Sun 3/1

12:50 pm-5:07 pm

1 stop4h 17m

$167

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Wed 3/18

11:55 am-4:15 pm

1 stop4h 20m

Washington, D.C. Dulles Intl

Wed 3/25

5:40 pm-9:29 pm

1 stop3h 49m

$168

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Wed 2/11

7:40 am-11:23 am

1 stop3h 43m

Washington, D.C. Dulles Intl

Thu 2/12

5:40 pm-9:28 pm

1 stop3h 48m

$168

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Tue 2/24

7:40 am-11:23 am

1 stop3h 43m

Washington, D.C. Dulles Intl

Thu 2/26

5:40 pm-9:28 pm

1 stop3h 48m

$169

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Tue 5/26

7:40 am-11:23 am

1 stop3h 43m

Washington, D.C. Dulles Intl

Fri 5/29

5:40 pm-9:28 pm

1 stop3h 48m

$170

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Mon 3/9

7:57 pm-9:04 pm

Nonstop1h 07m

Washington, D.C. Dulles Intl

Thu 3/12

12:50 pm-1:57 pm

Nonstop1h 07m

$171

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Thu 5/7

10:35 am-11:41 am

Nonstop1h 06m

Washington, D.C. Dulles Intl

Mon 5/11

8:30 am-9:31 am

Nonstop1h 01m

$171

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Thu 2/26

8:06 pm-9:14 pm

Nonstop1h 08m

Washington, D.C. Dulles Intl

Thu 3/5

8:25 am-9:35 am

Nonstop1h 10m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 21 results
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Compare providers for flights from Pittsburgh to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pittsburgh to Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Pittsburgh-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Pittsburgh-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Pittsburgh-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Pittsburgh-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Pittsburgh-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pittsburgh to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Pittsburgh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pittsburgh to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport (average of $105). Flying from Pittsburgh to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PIT to IAD?

Find hourly flight availability from Pittsburgh to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 31, 2026.

It’s typically best to fly out from Pittsburgh to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 41% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Pittsburgh to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Pittsburgh to Dulles Intl. Price data was last updated on January 24, 2026.

Travelers seeking maximum savings on their Pittsburgh to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Pittsburgh to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Pittsburgh to Washington, D.C. Dulles Intl Airport trip
Our travel experts
John Walton

John Walton

Expert on PIT

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated January 31, 2026.
Peruse reviews from past customers who have flown with United Airlines and Southern / Mokulele from Pittsburgh to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,220 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,220 reviews
United Airlines
7.4
Good
9,220 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Southern / Mokulele
6.5
Okay
27 reviews
United Airlines
7.4
Good
9,220 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Pittsburgh to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Pittsburgh to Washington, D.C. Dulles Intl?

    Pittsburgh (PIT) is the airport you will fly out of if you book a flight from Pittsburgh to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Pittsburgh; the airport handles an average of 10 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Pittsburgh airport to Washington, D.C. Dulles Intl. It is only a 13.5 mi journey to Pittsburgh (PIT) from Pittsburgh’s city center.

  • How long is the flight from Pittsburgh to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Pittsburgh to Washington, D.C. Dulles Intl Airport in 1h 06m. Fly via United Airlines or Southern / Mokulele to get the fastest option. The distance between Pittsburgh and Washington, D.C. Dulles Intl Airport is about 183 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Pittsburgh to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Pittsburgh to Washington, D.C. Dulles Intl Airport round-trip from $98. Another airline that can offer you cheap pricing is United Airlines. Southern / Mokulele is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Pittsburgh to Washington, D.C. Dulles Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Pittsburgh to Washington, D.C. Dulles Intl Airport on time: Republic Airways (93%), Ethiopian Air (92%), ANA (92%).

  • What are the cheapest flights from Pittsburgh to Washington, D.C. Dulles Intl Airport?

    Looking for the cheapest flight from Pittsburgh to Washington, D.C. Dulles Intl Airport? While on average our users pay $869, our data indicates the cheapest price to be $86. The most popular route (Pittsburgh - Washington, D.C. Dulles Intl), is priced around $97.

  • Can I find deals for flights from Pittsburgh to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Pittsburgh to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pittsburgh to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pittsburgh to Dulles Intl.

  • Can I find deals for business class flights from Pittsburgh to Dulles Intl?

    Yes. Cheapflights offers flight deals from Pittsburgh to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport (average of $105). Flying from Pittsburgh to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pittsburgh to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Reagan-National flights
Newark to Dulles Intl flights
John F Kennedy Intl to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
Newark to Reagan-National flights
LaGuardia to Dulles Intl flights
LaGuardia to Baltimore flights
John F Kennedy Intl to Baltimore flights
Newark to Baltimore flights
Pittsburgh to Baltimore flights
Pittsburgh to Reagan-National flights
Philadelphia to Reagan-National flights
Philadelphia to Dulles Intl flights
State College to Dulles Intl flights
Allentown to Reagan-National flights
Philadelphia to Baltimore flights
Scranton to Dulles Intl flights
State College to Reagan-National flights
Allentown to Dulles Intl flights
Harrisburg to Baltimore flights
State College to Baltimore flights
Allentown to Baltimore flights
Scranton to Reagan-National flights
Harrisburg to Dulles Intl flights
Scranton to Baltimore flights
Harrisburg to Reagan-National flights
Elmira to Baltimore flights
Johnstown to Baltimore flights
Erie to Baltimore flights
Erie to Reagan-National flights
Erie to Dulles Intl flights
Morgantown to Baltimore flights
Altoona to Baltimore flights
Latrobe to Baltimore flights
Elmira to Reagan-National flights
Hagerstown to Baltimore flights

Top 2 airlines flying from Pittsburgh to Dulles Intl

Discover the top 2 airlines that operate flights from Pittsburgh to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$98Average$149FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$179Average$265FlexibilityNo cancel feeOn-time69%

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