Dulles Intl

$48+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — IAD
oct. 17 — oct. 241
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Cheap 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 septiembre 17, 2025.

Round-trip from

$141
(Kiwi.com)

One-way from

$48
(Trip.com)

Popular in

January

Cheapest in

October

Average price

$268

Good round-trip deal

$423 or less

Good one-way deal

$203 or less
From Pittsburgh to Washington, D.C. Dulles Intl
One-way flight from Pittsburgh to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 9% potential increase in price ($23 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Pittsburgh to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Pittsburgh to Washington, D.C. Dulles Intl.

Find 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 septiembre 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
mié. 10/111:55 amPIT - IAD
1 stop4h 18mSouthern / Mokulele
mié. 10/812:50 pmIAD - PIT
1 stop4h 17mSouthern / Mokulele
Deal found 9/16$141
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/311:55 amPIT - IAD
1 stop4h 18mSouthern / Mokulele
sáb. 10/48:25 amIAD - PIT
1 stop5h 57mSouthern / Mokulele
Deal found 9/15$143
This Trip.com deal was found by Cheapflights users on 9/14. 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.
lun. 9/1511:55 amPIT - IAD
1 stop4h 18mSouthern / Mokulele
mar. 9/1612:50 pmIAD - PIT
1 stop4h 17mSouthern / Mokulele
Deal found 9/14$144
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/2111:55 amPIT - IAD
1 stop4h 18mSouthern / Mokulele
dom. 11/308:25 amIAD - PIT
1 stop5h 57mSouthern / Mokulele
Deal found 9/15$145
This Trip.com deal was found by Cheapflights users on 9/16. 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.
sáb. 10/118:15 amPIT - IAD
1 stop3h 06mSouthern / Mokulele
lun. 10/1312:50 pmIAD - PIT
1 stop4h 17mSouthern / Mokulele
Deal found 9/16$148
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/55:20 pmPIT - IAD
1 stop3h 41mSouthern / Mokulele
lun. 10/65:40 pmIAD - PIT
1 stop3h 48mSouthern / Mokulele
Deal found 9/15$153
This KAYAK deal was found by Cheapflights users on 9/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/267:40 amPIT - IAD
1 stop3h 43mSouthern / Mokulele
dom. 9/2812:50 pmIAD - PIT
1 stop4h 17mSouthern / Mokulele
Deal found 9/16$154
This CheapOair deal was found by Cheapflights users on 9/15. 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.
mié. 9/177:40 amPIT - IAD
1 stop3h 43mSouthern / Mokulele
dom. 11/3012:50 pmIAD - PIT
1 stop4h 17mSouthern / Mokulele
Deal found 9/15$159
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/108:15 amPIT - IAD
1 stop3h 06mSouthern / Mokulele
vie. 10/105:40 pmIAD - PIT
1 stop3h 48mSouthern / Mokulele
Deal found 9/15$162
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/1911:55 amPIT - IAD
1 stop4h 18mSouthern / Mokulele
sáb. 9/208:25 amIAD - PIT
1 stop5h 57mSouthern / Mokulele
Deal found 9/15$163
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1011:55 amPIT - IAD
1 stop4h 18mSouthern / Mokulele
sáb. 10/118:25 amIAD - PIT
1 stop5h 57mSouthern / Mokulele
Deal found 9/15$164
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/98:15 amPIT - IAD
1 stop12h 46mSouthern / Mokulele
dom. 10/1212:55 pmIAD - PIT
1 stop4h 12mSouthern / Mokulele
Deal found 9/15$166

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 septiembre 17, 2025.
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

vie. 10/10

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

mar. 10/14

8:25 am-2:22 pm

1 stop5h 57m

$143

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

vie. 10/31

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

sáb. 11/1

8:25 am-2:22 pm

1 stop5h 57m

$143

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

mié. 10/1

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

dom. 10/5

12:55 pm-5:07 pm

1 stop4h 12m

$159

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

jue. 9/25

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

dom. 9/28

12:55 pm-5:07 pm

1 stop4h 12m

$159

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

vie. 10/17

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

jue. 10/23

12:55 pm-5:07 pm

1 stop4h 12m

$164

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

vie. 10/31

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

dom. 11/2

5:40 pm-9:28 pm

1 stop3h 48m

$164

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

mar. 11/25

6:15 am-7:26 am

Nonstop1h 11m

Washington, D.C. Dulles Intl

sáb. 11/29

8:25 am-9:28 am

Nonstop1h 03m

$179

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

vie. 10/31

10:35 am-11:38 am

Nonstop1h 03m

Washington, D.C. Dulles Intl

dom. 11/2

10:20 pm-11:27 pm

Nonstop1h 07m

$179

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

jue. 10/23

6:15 am-7:29 am

Nonstop1h 14m

Washington, D.C. Dulles Intl

sáb. 10/25

8:25 am-9:31 am

Nonstop1h 06m

$179

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

vie. 10/10

10:29 am-11:42 am

Nonstop1h 13m

Washington, D.C. Dulles Intl

lun. 10/13

10:10 pm-11:15 pm

Nonstop1h 05m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 22 results
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The best insider tips for Pittsburgh to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Pittsburgh to Washington, D.C. Dulles Intl Airport trip
Airports
PIT

For early morning flights, arrive 3 hours ahead due to busy security lines. Check the airport's live security time tracker for shorter wait times.

Read more about PITby John Walton
IAD

The Washington Metro Silver Line now reaches IAD in under 40 minutes, offering a cheap way to get to the city.

Read more about IADby Ramsey Qubein
Our travel experts
John Walton

John Walton

Expert on PIT

John Walton

John Walton

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

Ramsey Qubein

Ramsey Qubein

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

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, August is the cheapest month in which you can book a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Pittsburgh to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 septiembre 17, 2025.

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 44% 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 September 14, 2025.

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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 septiembre 17, 2025.
Peruse reviews from past customers who have flown with United Airlines 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.

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 13 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 4h 18m. Fly via Southern / Mokulele to get the fastest option. The distance between Pittsburgh and Washington, D.C. Dulles Intl Airport is about 183 mi.

  • 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 $108. Another airline that can offer you cheap pricing is United Airlines. Southern / Mokulele is priced at 54% 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: ITA Airways (100%), ANA (100%), Ethiopian Air (100%).

  • 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 $780, our data indicates the cheapest price to be $118. 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, August is the cheapest month in which you can book a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Pittsburgh to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$108Average$141FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$179Average$273FlexibilityNo cancel feeOn-time69%

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