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 $179. Other airlines that can offer you cheap pricing are Southern / Mokulele, from $184, and American Airlines, from $396. United Airlines is priced at 22% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Pittsburgh to Washington, D.C. Dulles Intl Airport one-way?

To fly one-way, consider booking your trip with Southern / Mokulele, which is currently one of the cheapest options available, starting at $70. United Airlines flights start at $99 while deals on Allegiant Air start at $121 one-way.

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 $1,941, our data indicates the cheapest price to be $123. The most popular route (Pittsburgh - Washington, D.C. Dulles Intl), is priced around $102.

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: CommutAir (100%), Republic Airways (90%), United Airlines (89%).

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

Flights from Pittsburgh to Washington, D.C. Dulles Intl Airport are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Dulles Intl Airport.

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

Flights from Pittsburgh to Washington, D.C. Dulles Intl Airport lean towards being more expensive in January. Prices are generally better when you fly from Pittsburgh to Washington, D.C. Dulles Intl Airport in August, with the cheapest ticket starting at $114.

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.

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 11 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.

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.

$70+ Save on Flights from Pittsburgh to Washington, D.C. Dulles Intl Airport

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Find cheap flights from Pittsburgh to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Pittsburgh to Washington, D.C. Dulles Intl are usually found in August or April, booked 51 days in advance, depart on a Thursday or Sunday and return on a Friday

Cheap flight deals from Pittsburgh to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$179 (United Airlines)
One-way from	$70 (Expedia)
Popular in	May
Cheapest in	August
Average price	$200
Good round-trip deal	$537 or less
Good one-way deal	$206 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

Highest demand for flights based on searches. 5% potential increase in price ($13 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Price to beat on a round-trip flight from Pittsburgh to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Pittsburgh to Washington, D.C. Dulles Intl.

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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 March 21, 2025.

Fri 7/256:20 amPIT - IAD

Nonstop1h 02mUnited Airlines

Tue 7/298:36 amIAD - PIT

Nonstop1h 00mUnited Airlines

Deal found 3/20

$179

Fri 7/187:40 amPIT - IAD

1 stop3h 40mSouthern / Mokulele

Sun 7/2012:55 pmIAD - PIT

1 stop4h 18mSouthern / Mokulele

Deal found 3/20

$184

Fri 4/411:55 amPIT - IAD

1 stop23h 40mMultiple Airlines

Mon 4/76:35 amIAD - PIT

2 stops32h 31mMultiple Airlines

Deal found 3/20

$311

Sat 5/177:40 pmPIT - IAD

1 stop4h 22mAmerican Airlines

Wed 5/218:02 pmIAD - PIT

2 stops13h 42mAmerican Airlines

Deal found 3/21

$396

Sun 5/47:39 pmPIT - IAD

1 stop12h 04mAlaska Airlines

Sun 5/116:30 amIAD - PIT

1 stop12h 13mAlaska Airlines

Deal found 3/20

$859

Best flights from Pittsburgh to Dulles Intl
Discover carefully curated flight deals from Pittsburgh to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 21, 2025.

Fri 7/256:20 amPIT - IAD

Nonstop1h 02mUnited Airlines

Tue 7/298:36 amIAD - PIT

Nonstop1h 00mUnited Airlines

Deal found 3/20

$179

Fri 7/187:40 amPIT - IAD

1 stop3h 40mSouthern / Mokulele

Sun 7/2012:55 pmIAD - PIT

1 stop4h 18mSouthern / Mokulele

Deal found 3/20

$184

Fri 4/49:55 pmPIT - IAD

1 stop13h 40mMultiple Airlines

Mon 4/76:35 amIAD - PIT

2 stops32h 31mMultiple Airlines

Deal found 3/20

$299

Sat 5/177:40 pmPIT - IAD

1 stop4h 22mAmerican Airlines

Wed 5/218:02 pmIAD - PIT

2 stops13h 42mAmerican Airlines

Deal found 3/21

$396

Wed 5/287:00 amPIT - IAD

1 stop4h 45mDelta

Tue 6/106:10 amIAD - PIT

1 stop4h 58mDelta

Deal found 3/20

$439

Sun 5/47:39 pmPIT - IAD

1 stop12h 04mAlaska Airlines

Sun 5/116:30 amIAD - PIT

1 stop12h 13mAlaska Airlines

Deal found 3/20

$859

Last-minute flights from Pittsburgh to Dulles Intl
Discover last-minute flight deals from Pittsburgh to Dulles Intl. Data last updated March 21, 2025 and is based on user searches.

Thu 3/276:15 amPIT - IAD

1 stop7h 07mAmerican Airlines

Fri 3/285:28 pmIAD - PIT

2 stops15h 57mAmerican Airlines

Deal found 3/20

$603

Fri 3/286:25 amPIT - IAD

Nonstop1h 10mUnited Airlines

Thu 4/33:40 pmIAD - PIT

Nonstop1h 05mUnited Airlines

Deal found 3/20

$254

Sat 3/292:55 pmPIT - IAD

1 stop20h 40mSouthern / Mokulele

Sat 4/58:25 amIAD - PIT

1 stop6h 03mSouthern / Mokulele

Deal found 3/21

$209

Fri 4/411:55 amPIT - IAD

1 stop23h 40mMultiple Airlines

Mon 4/76:35 amIAD - PIT

2 stops32h 31mMultiple Airlines

Deal found 3/20

$311

Sat 4/52:55 pmPIT - IAD

1 stop20h 40mSouthern / Mokulele

Mon 4/75:40 pmIAD - PIT

1 stop3h 49mSouthern / Mokulele

Deal found 3/20

$187

Fri 4/1110:23 amPIT - IAD

Nonstop1h 07mUnited Airlines

Tue 4/158:40 amIAD - PIT

Nonstop1h 02mUnited Airlines

Deal found 3/20

$179

Wed 4/236:00 amPIT - IAD

2 stops13h 41mAmerican Airlines

Thu 4/245:00 amIAD - PIT

1 stop4h 18mAmerican Airlines

Deal found 3/20

$396

One-way flights from Pittsburgh to Dulles Intl
Search for one-way flight options from Pittsburgh to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated March 21, 2025.

Fri 4/47:40 amPIT - IAD

1 stop3h 40mSouthern / Mokulele

Deal found 3/20

$70

Mon 4/141:15 pmPIT - IAD

Nonstop1h 10mUnited Airlines

Deal found 3/20

$99

Sat 6/285:20 pmPIT - IAD

1 stop15h 11mAllegiant Air

Deal found 3/20

$121

Thu 5/295:45 amPIT - IAD

2 stops38h 32mMultiple Airlines

Deal found 3/20

$134

Sat 3/296:25 amPIT - IAD

1 stop5h 08mDelta

Deal found 3/21

$259

Mon 4/144:35 pmPIT - IAD

2 stops16h 03mAmerican Airlines

Deal found 3/20

$261

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 7/25

6:20 am-7:22 am

Nonstop1h 02m

Washington, D.C. Dulles Intl

Tue 7/29

8:36 am-9:36 am

Nonstop1h 00m

$179

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 7/18

7:40 am-11:20 am

1 stop3h 40m

Washington, D.C. Dulles Intl

Sun 7/20

12:55 pm-5:13 pm

1 stop4h 18m

$184

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 4/4

9:55 pm-11:35 am

1 stop13h 40m

Washington, D.C. Dulles Intl

Mon 4/7

6:35 am-3:06 pm

2 stops32h 31m

$299

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Sat 5/17

7:40 pm-12:02 am

1 stop4h 22m

Washington, D.C. Dulles Intl

Wed 5/21

8:02 pm-9:44 am

2 stops13h 42m

$396

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Wed 5/28

7:00 am-11:45 am

1 stop4h 45m

Washington, D.C. Dulles Intl

Tue 6/10

6:10 am-11:08 am

1 stop4h 58m

$439

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Sun 5/4

7:39 pm-7:43 am

1 stop12h 04m

Washington, D.C. Dulles Intl

Sun 5/11

6:30 am-6:43 pm

1 stop12h 13m

$859

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 4/4

7:40 am-11:20 am

1 stop3h 40m

$70

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Mon 4/14

1:15 pm-2:25 pm

Nonstop1h 10m

$99

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Sat 6/28

5:20 pm-8:31 am

1 stop15h 11m

$121

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Thu 5/29

5:45 am-8:17 pm

2 stops38h 32m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 12 results

Compare providers for flights from Pittsburgh to Dulles Intl

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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Pittsburgh to Washington, D.C. Dulles Intl Airport trip

Airports

PIT

Arrive 3 hours early for morning flights due to busy security lines. Check the airport's live security time tracker for updates.

IAD

Use the Silver Line Metro for a cost-effective ride to downtown D.C. in under 40 minutes from IAD.

Our travel experts

John Walton

Expert on PIT

Ramsey Qubein

Expert on IAD

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

How far ahead should I book a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport?

Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pittsburgh to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $309). Flying from Pittsburgh to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $387). 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?

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 53% 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?

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

Weekly flight availability from Pittsburgh to Washington, D.C. Dulles Intl Airport

The most flights from PIT to IAD are scheduled on a Thursday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Pittsburgh to Washington, D.C., such as Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,759 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,759 reviews

Alaska Airlines

8.0

Very good

9,759 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,895 reviews

Alaska Airlines

8.0

Very good

9,759 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,605 reviews

Alaska Airlines

8.0

Very good

9,759 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Allegiant Air

7.3

Good

732 reviews

Alaska Airlines

8.0

Very good

9,759 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,759 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

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 11 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.
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 $179. Other airlines that can offer you cheap pricing are Southern / Mokulele, from $184, and American Airlines, from $396. United Airlines is priced at 22% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Pittsburgh to Washington, D.C. Dulles Intl Airport one-way?
To fly one-way, consider booking your trip with Southern / Mokulele, which is currently one of the cheapest options available, starting at $70. United Airlines flights start at $99 while deals on Allegiant Air start at $121 one-way.
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: CommutAir (100%), Republic Airways (90%), United Airlines (89%).
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 $1,941, our data indicates the cheapest price to be $123. The most popular route (Pittsburgh - Washington, D.C. Dulles Intl), is priced around $102.
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 $309). Flying from Pittsburgh to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $387). 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.

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Top 2 airlines flying from Pittsburgh to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Southern / Mokulele	Cheapest$113	Average$143	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$178	Average$295	FlexibilityNo cancel fee	On-time69%

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$70+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Pittsburgh to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Pittsburgh to Washington, D.C. Dulles Intl are usually found in August or April, booked 51 days in advance, depart on a Thursday or Sunday and return on a Friday

Cheap flight deals from Pittsburgh to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Pittsburgh to Dulles Intl

Cheapest flights from Pittsburgh to Dulles IntlExplore 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 March 21, 2025.

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 March 21, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Pittsburgh to Washington, D.C. Dulles Intl Airport that are best for you.

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 March.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Pittsburgh to Washington, D.C. Dulles Intl Airport trip

Airports

PIT

IAD

Our travel experts

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.

Cheapflights Insights

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

How far ahead should I book a flight from Pittsburgh to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Pittsburgh to Dulles Intl. Price data was last updated on March 14, 2025.

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

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 March 21, 2025.

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 March 16, 2025.

Weekly flight availability from Pittsburgh to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Pittsburgh to Washington, D.C., such as Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

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

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

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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 March 21, 2025.