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Cheap flights from Pittsburgh to Washington, D.C. from $48

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pittsburgh to Washington, D.C. departing on 9/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Southern / Mokulele Logo
11:55 am - 4:13 pmPIT-IAD
4h 18m1 stop
Southern / Mokulele Logo
12:50 pm - 5:07 pmIAD-PIT
4h 17m1 stop
$141Southern / Mokulele
Find Deal
Wed, Oct 1 - Wed, Oct 8
Southern / Mokulele Logo
11:55 am - 4:13 pmPIT-IAD
4h 18m1 stop
Southern / Mokulele Logo
8:25 am - 2:22 pmIAD-PIT
5h 57m1 stop
$143Southern / Mokulele
Find Deal
Fri, Oct 3 - Sat, Oct 4
Southern / Mokulele Logo
5:20 pm - 9:01 pmPIT-IAD
3h 41m1 stop
Southern / Mokulele Logo
5:40 pm - 9:28 pmIAD-PIT
3h 48m1 stop
$144Southern / Mokulele
Find Deal
Sun, Oct 19 - Mon, Oct 20
Southern / Mokulele Logo
11:55 am - 4:13 pmPIT-IAD
4h 18m1 stop
Southern / Mokulele Logo
8:25 am - 2:22 pmIAD-PIT
5h 57m1 stop
$145Southern / Mokulele
Find Deal
Fri, Nov 21 - Sun, Nov 30
Southern / Mokulele Logo
8:15 am - 11:21 amPIT-IAD
3h 06m1 stop
Southern / Mokulele Logo
12:50 pm - 5:07 pmIAD-PIT
4h 17m1 stop
$148Southern / Mokulele
Find Deal
Sat, Oct 11 - Mon, Oct 13
United Airlines Logo
8:08 pm - 9:10 pmPIT-IAD
1h 02mnonstop
United Airlines Logo
10:10 pm - 11:15 pmIAD-PIT
1h 05mnonstop
$179United Airlines
Find Deal
Fri, Oct 10 - Sun, Oct 12
United Airlines Logo
8:08 pm - 9:10 pmPIT-IAD
1h 02mnonstop
United Airlines Logo
1:00 pm - 2:03 pmIAD-PIT
1h 03mnonstop
$184United Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8
United Airlines Logo
8:08 pm - 9:10 pmPIT-IAD
1h 02mnonstop
United Airlines Logo
8:25 am - 9:26 amIAD-PIT
1h 01mnonstop
$189United Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
Multiple Airlines Logo
7:40 am - 11:23 amPIT-IAD
3h 43m1 stop
Multiple Airlines Logo
10:10 pm - 11:15 pmIAD-PIT
1h 05mnonstop
$191Multiple Airlines
Find Deal
Thu, Oct 9 - Thu, Oct 9
United Airlines Logo
10:35 am - 11:38 amPIT-IAD
1h 03mnonstop
United Airlines Logo
12:55 pm - 2:02 pmIAD-PIT
1h 07mnonstop
$197United Airlines
Find Deal
Tue, Oct 28 - Wed, Oct 29

United Airlines flights from Pittsburgh to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Pittsburgh to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Oct 10
PIT8:08 pmPittsburgh
1h 02m
IAD9:10 pmWashington, D.C. Dulles Intl
Oct 12
IAD10:10 pmWashington, D.C. Dulles Intl
1h 05m
PIT11:15 pmPittsburgh
$179
Find similar
United Airlines
Oct 1
PIT8:08 pmPittsburgh
1h 02m
IAD9:10 pmWashington, D.C. Dulles Intl
Oct 8
IAD1:00 pmWashington, D.C. Dulles Intl
1h 03m
PIT2:03 pmPittsburgh
$184
Find similar
United Airlines
Oct 3
PIT8:08 pmPittsburgh
1h 02m
IAD9:10 pmWashington, D.C. Dulles Intl
Oct 5
IAD8:25 amWashington, D.C. Dulles Intl
1h 01m
PIT9:26 amPittsburgh
$189
Find similar

Southern / Mokulele flights from Pittsburgh to Washington, D.C. Dulles Intl Airport

Our best Southern / Mokulele deals on Pittsburgh to Washington, D.C. Dulles Intl Airport flight tickets
Southern / Mokulele
Oct 1
PIT11:55 amPittsburgh
4h 18m
1 stop
IAD4:13 pmWashington, D.C. Dulles Intl
Oct 8
IAD12:50 pmWashington, D.C. Dulles Intl
4h 17m
1 stop
PIT5:07 pmPittsburgh
$141
Find similar
Southern / Mokulele
Sep 24
PIT11:55 amPittsburgh
4h 18m
1 stop
IAD4:13 pmWashington, D.C. Dulles Intl
Sep 27
IAD8:25 amWashington, D.C. Dulles Intl
5h 57m
1 stop
PIT2:22 pmPittsburgh
$143
Find similar
Southern / Mokulele
Oct 19
PIT5:20 pmPittsburgh
3h 41m
1 stop
IAD9:01 pmWashington, D.C. Dulles Intl
Oct 20
IAD5:40 pmWashington, D.C. Dulles Intl
3h 48m
1 stop
PIT9:28 pmPittsburgh
$144
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Pittsburgh to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated September 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

Fly to

Route

Depart

Return

Price

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Wed 10/1

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

Wed 10/8

12:50 pm-5:07 pm

1 stop4h 17m

$141

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 10/3

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

Sat 10/4

8:25 am-2:22 pm

1 stop5h 57m

$143

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Sun 10/19

5:20 pm-9:01 pm

1 stop3h 41m

Washington, D.C. Dulles Intl

Mon 10/20

5:40 pm-9:28 pm

1 stop3h 48m

$144

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 11/21

11:55 am-4:13 pm

1 stop4h 18m

Washington, D.C. Dulles Intl

Sun 11/30

8:25 am-2:22 pm

1 stop5h 57m

$145

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Sat 10/11

8:15 am-11:21 am

1 stop3h 06m

Washington, D.C. Dulles Intl

Mon 10/13

12:50 pm-5:07 pm

1 stop4h 17m

$148

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 10/10

8:08 pm-9:10 pm

Nonstop1h 02m

Washington, D.C. Dulles Intl

Sun 10/12

10:10 pm-11:15 pm

Nonstop1h 05m

$179

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Wed 10/1

8:08 pm-9:10 pm

Nonstop1h 02m

Washington, D.C. Dulles Intl

Wed 10/8

1:00 pm-2:03 pm

Nonstop1h 03m

$184

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 10/3

8:08 pm-9:10 pm

Nonstop1h 02m

Washington, D.C. Dulles Intl

Sun 10/5

8:25 am-9:26 am

Nonstop1h 01m

$189

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Thu 10/9

7:40 am-11:23 am

1 stop3h 43m

Washington, D.C. Dulles Intl

Thu 10/9

10:10 pm-11:15 pm

Nonstop1h 05m

$191

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Tue 10/28

10:35 am-11:38 am

Nonstop1h 03m

Washington, D.C. Dulles Intl

Wed 10/29

12:55 pm-2:02 pm

Nonstop1h 07m

$197

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Pittsburgh to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, October is the cheapest month to fly from Pittsburgh to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $179. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of October, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $186.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $767. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Pittsburgh to Washington, D.C. Dulles Intl Airport for around $872.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Pittsburgh in the morning is the least expensive time of day to depart. momondo users have found prices as low as $620 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,096 on average. Flights to Washington, D.C. Dulles Intl Airport from Pittsburgh at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Pittsburgh to Washington, D.C. Dulles Intl flight route?

Fly from Pittsburgh to Washington, D.C. Dulles Intl for the best Pittsburgh - Washington, D.C. Dulles Intl flight prices

What cabin class options are available on Pittsburgh to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Pittsburgh to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Pittsburgh to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of September 2025, prices for Pittsburgh to Washington, D.C. Dulles Intl Airport flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Pittsburgh to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Pittsburgh to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Pittsburgh to Washington, D.C. Dulles Intl Airport (PIT to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pittsburgh to Washington, D.C. Dulles Intl Airport

Best Price Found

$203

Fastest flight time

1h 02m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Pittsburgh in the past 72 hours is $203. The best round-trip flight deal from Pittsburgh to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $423.
The fastest flight from Pittsburgh to Washington, D.C. Dulles Intl Airport takes 1h 02m
Direct flights go from Pittsburgh to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Pittsburgh to Washington, D.C. Dulles Intl by plane?

    There are 170.0 mi between Pittsburgh and Washington, D.C. Dulles Intl. By plane, this route typically takes 1h 02m.

  • When did momondo last update prices for flights from Pittsburgh Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Pittsburgh Airport to Washington, D.C. Dulles Intl Airport were last updated today.

  • How many operators does momondo search for flights from Pittsburgh Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Pittsburgh Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pittsburgh Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Pittsburgh to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Pittsburgh to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Pittsburgh to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Pittsburgh to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Southern / MokulelePriceFrom $108Free CancellationRating
6.3
25 reviews
Search Southern / Mokulele flights
United AirlinesPriceFrom $179Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • United Airlines Flights From Pittsburgh to Washington, D.C. Dulles Intl Airport

    United Airlines is one of the most popular airlines flying from Pittsburgh to Washington, D.C. Dulles Intl Airport, operating 22 flights/week on average for this route. A good United Airlines flight deal for Pittsburgh to Washington, D.C. Dulles Intl Airport starts from $179 round-trip, up to an average price of $273. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

Why use momondo?

Why should I use momondo to find a flight deal from Pittsburgh to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Pittsburgh.

Can I find flights from Pittsburgh to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Pittsburgh with this policy.

How can momondo help me find flights from Pittsburgh to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Pittsburgh to Washington, D.C..

I’m not ready to book a flight from Pittsburgh to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Pittsburgh. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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