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 56% 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 $50. United Airlines flights start at $69 while deals on Allegiant Air start at $87 one-way.

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.

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).

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 $1,805, our data indicates the cheapest price to be $126. The most popular route (Pittsburgh - Washington, D.C. Dulles Intl), is priced around $98.

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: Ethiopian Air (98%), ANA (98%), Copa Airlines (86%).

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 Monday. 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.

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 15 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.

$50+ Flights from Pittsburgh to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Pittsburgh to Washington, D.C. Dulles Intl are usually found in August or December, booked 50 days in advance, depart on a Thursday or Sunday and return on a Friday

Cheap flight deals from Pittsburgh to Dulles Intl

Round-trip from	$98 (Trip.com)
One-way from	$50 (Trip.com)
Popular in	January
Cheapest in	August
Average price	$200
Good round-trip deal	$664 or less
Good one-way deal	$189 or less

From Pittsburgh to Washington, D.C. Dulles Intl

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One-way flight from Pittsburgh to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 7% potential increase in price ($16 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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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 July 3, 2025.

Fri 7/187:40 amPIT - IAD

1 stop3h 40mSouthern / Mokulele

Fri 7/185:40 pmIAD - PIT

1 stop3h 49mSouthern / Mokulele

Deal found 7/2

$98

Tue 8/1210:28 amPIT - IAD

Nonstop1h 12mUnited Airlines

Tue 8/198:43 amIAD - PIT

Nonstop1h 00mUnited Airlines

Deal found 7/3

$137

Fri 7/1811:55 amPIT - IAD

1 stop4h 20mMultiple Airlines

Mon 7/211:27 pmIAD - PIT

1 stop6h 11mMultiple Airlines

Deal found 7/3

$171

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 July 3, 2025.

Fri 7/187:40 amPIT - IAD

1 stop3h 40mSouthern / Mokulele

Fri 7/185:40 pmIAD - PIT

1 stop3h 49mSouthern / Mokulele

Deal found 7/2

$98

Mon 8/48:05 pmPIT - IAD

Nonstop1h 13mUnited Airlines

Thu 8/78:15 amIAD - PIT

Nonstop1h 06mUnited Airlines

Deal found 7/2

$137

Thu 8/710:23 amPIT - IAD

Nonstop1h 09mMultiple Airlines

Mon 8/118:25 amIAD - PIT

1 stop6h 03mMultiple Airlines

Deal found 7/1

$160

Last-minute flights from Pittsburgh to Dulles Intl
Discover last-minute flight deals from Pittsburgh to Dulles Intl. Data last updated July 3, 2025 and is based on user searches.

Tue 7/87:40 amPIT - IAD

1 stop3h 46mMultiple Airlines

Tue 7/155:40 pmIAD - PIT

Nonstop1h 11mMultiple Airlines

Deal found 7/1

$199

Wed 7/911:55 amPIT - IAD

1 stop4h 20mSouthern / Mokulele

Tue 7/1512:55 pmIAD - PIT

1 stop4h 18mSouthern / Mokulele

Deal found 7/1

$139

Wed 7/94:53 pmPIT - IAD

1 stop7h 05mAmerican Airlines

Tue 7/159:03 amIAD - PIT

2 stops12h 13mAmerican Airlines

Deal found 7/1

$523

Sun 7/136:15 amPIT - IAD

Nonstop1h 13mUnited Airlines

Sat 7/193:30 pmIAD - PIT

Nonstop1h 08mUnited Airlines

Deal found 7/1

$194

Fri 7/187:40 amPIT - IAD

1 stop3h 40mSouthern / Mokulele

Fri 7/185:40 pmIAD - PIT

1 stop3h 49mSouthern / Mokulele

Deal found 7/2

$98

Fri 7/1811:55 amPIT - IAD

1 stop4h 20mMultiple Airlines

Mon 7/211:27 pmIAD - PIT

1 stop6h 11mMultiple Airlines

Deal found 7/3

$171

Tue 8/1210:28 amPIT - IAD

Nonstop1h 12mUnited Airlines

Tue 8/198:43 amIAD - PIT

Nonstop1h 00mUnited Airlines

Deal found 7/3

$137

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 July 3, 2025.

Tue 7/87:40 amPIT - IAD

1 stop3h 46mSouthern / Mokulele

Deal found 7/2

$50

Tue 9/26:15 amPIT - IAD

Nonstop1h 13mUnited Airlines

Deal found 7/2

$69

Sat 8/95:20 pmPIT - IAD

1 stop15h 15mAllegiant Air

Deal found 7/2

$87

Tue 9/97:05 amPIT - IAD

1 stop4h 57mDelta

Deal found 7/2

$89

Sun 9/2810:16 amPIT - IAD

1 stop7h 56mFrontier

Deal found 7/2

$94

Thu 9/48:03 pmPIT - IAD

2 stops19h 50mMultiple Airlines

Deal found 7/2

$140

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 7/18

7:40 am-11:20 am

1 stop3h 40m

Washington, D.C. Dulles Intl

Fri 7/18

5:40 pm-9:29 pm

1 stop3h 49m

$98

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Tue 8/12

10:28 am-11:40 am

Nonstop1h 12m

Washington, D.C. Dulles Intl

Tue 8/19

8:43 am-9:43 am

Nonstop1h 00m

$137

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Thu 8/7

10:23 am-11:32 am

Nonstop1h 09m

Washington, D.C. Dulles Intl

Mon 8/11

8:25 am-2:28 pm

1 stop6h 03m

$160

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Tue 7/8

7:40 am-11:26 am

1 stop3h 46m

$50

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Tue 9/2

6:15 am-7:28 am

Nonstop1h 13m

$69

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Sat 8/9

5:20 pm-8:35 am

1 stop15h 15m

$87

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Tue 9/9

7:05 am-12:02 pm

1 stop4h 57m

$89

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Sun 9/28

10:16 am-6:12 pm

1 stop7h 56m

$94

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Thu 9/4

8:03 pm-3:53 pm

2 stops19h 50m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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

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.

IAD

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

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 July is currently the most expensive (average of $345). 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 49% 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 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.

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

The most flights from PIT to IAD are scheduled on a Thursday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, United Airlines, and Allegiant Air 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.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Allegiant Air

7.3

Good

708 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.9

Fair

3,286 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 15 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 $98. Another airline that can offer you cheap pricing is United Airlines. Southern / Mokulele is priced at 56% 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 $50. United Airlines flights start at $69 while deals on Allegiant Air start at $87 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: Ethiopian Air (98%), ANA (98%), Copa Airlines (86%).
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 $1,805, our data indicates the cheapest price to be $126. The most popular route (Pittsburgh - Washington, D.C. Dulles Intl), is priced around $98.
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 July is currently the most expensive (average of $345). 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$110	Average$140	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$180	Average$277	FlexibilityNo cancel fee	On-time69%

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$50+ 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 7/8. 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

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Cheapflights Tip: The best prices from Pittsburgh to Washington, D.C. Dulles Intl are usually found in August or December, booked 50 days in advance, depart on a Thursday or Sunday and return on a Friday

Cheap flight deals from Pittsburgh to Dulles Intl

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 July 3, 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 July 3, 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.

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 June 27, 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 July 3, 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 June 29, 2025.

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

Explore weekly flight availability from Pittsburgh to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

Reviews of airlines servicing Dulles Intl

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?

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

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

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

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

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

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

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

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

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Alternative routes for Pittsburgh to Dulles Intl

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Top 2 airlines flying from Pittsburgh to Dulles Intl

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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 July 3, 2025.