$69 Cheap United flights Pittsburgh (PIT) to Washington (IAD)

View $69 flight on Mon, Aug 25, 2025Opens in a new window

$69 Cheap United flights Pittsburgh (PIT) to Washington (IAD)

Prices were available within the past 7 days and start at $69 for one-way flights and $137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Sep 25 - Mon, Sep 29
PIT
Pittsburgh
IAD
Washington
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 25 from Pittsburgh to Washington, returning Mon, Sep 29, priced at $137 found 1 day ago
United
Mon, Aug 11 - Fri, Aug 15
PIT
Pittsburgh
IAD
Washington
$156 Roundtrip, found 5 days ago
$156
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 11 from Pittsburgh to Washington, returning Fri, Aug 15, priced at $156 found 5 days ago
United
Thu, Sep 11 - Mon, Sep 15
PIT
Pittsburgh
IAD
Washington
$161 Roundtrip, found 2 days ago
$161
Roundtrip
found 2 days ago
Select United flight, departing Thu, Sep 11 from Pittsburgh to Washington, returning Mon, Sep 15, priced at $161 found 2 days ago
United
Wed, Oct 8 - Fri, Oct 10
PIT
Pittsburgh
IAD
Washington
$162 Roundtrip, found 2 days ago
$162
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 8 from Pittsburgh to Washington, returning Fri, Oct 10, priced at $162 found 2 days ago
United
Thu, Aug 7 - Sun, Aug 10
PIT
Pittsburgh
IAD
Washington
$168 Roundtrip, found 2 days ago
$168
Roundtrip
found 2 days ago
Select United flight, departing Thu, Aug 7 from Pittsburgh to Washington, returning Sun, Aug 10, priced at $168 found 2 days ago
United
Sat, Aug 30 - Mon, Sep 1
PIT
Pittsburgh
IAD
Washington
$172 Roundtrip, found 2 days ago
$172
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 30 from Pittsburgh to Washington, returning Mon, Sep 1, priced at $172 found 2 days ago
Flights from Pittsburgh (PIT) to Washington (IAD)
Origin airport
Pittsburgh Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, Southern Airways Express, United
Popular airline
Southern Airways Express
Distance
183 mi
Average flight time
1 hour 12 mins

Frequently asked questions

How much is a United Airlines flight from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
You'll find budget-friendly return United Airlines flights from $137 from PIT to IAD by organizing your results from "Price (lowest to highest)" on Expedia. Or look for options from $69 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PIT to IAD with United Airlines?
Browse for return or one-way flights to Washington in January or February. You could find a cheap fare with United Airlines during these quieter months.
What is the cheapest time to book flights from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD) with United Airlines?
Search for affordable United Airlines flights from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD) one to three months before your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and itinerary, the best day of the week to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
You can easily fly from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD) on one of United Airlines's 18 direct weekly flights. Use Expedia's "Nonstop" and "Airline" filters to find the United Airlines flight that'll arrive at IAD at a time that suits you.
How long does it take to fly from PIT to IAD with United Airlines?
It takes approximately 1h 14m to fly nonstop from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD) with United Airlines.
Which day of the week has the most United Airlines flights from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
If it's flexibility you're after, Thursday offers the most choice for United Airlines flights from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD). You can select from 3 different departures.
What is the earliest United Airlines flight from PIT to IAD?
The earliest flight from PIT to IAD with United Airlines departs at 6:15AM UTC-5. You'll land at 7:32AM UTC-5. The final United Airlines flight of the day takes off at 3:14PM UTC-5 and arrives at 4:25PM UTC-5. With approximately 20% fewer cancellations for early and mid-morning departures, starting your travel day early is generally the wisest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Washington?
Washington Dulles Intl. Airport (IAD) is the main Washington gateway for United Airlines flights from Pittsburgh Intl. Airport (PIT). Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) are two other options. When organizing your vacation with Expedia, check the "All Airports" option for your destination to see everything that's available.
Why fly with United Airlines from PIT to IAD?
Journey from PIT to IAD with United Airlines and enjoy a range of perks including a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
United Airlines typically flies Embraer 170 planes for flights from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD). This carrier also operates the Embraer 175 on this route. Remember that aircraft type can vary due to operational needs, so the plane you board could be different when you leave.
Can I change or cancel my United Airlines flight from Pittsburgh Intl. Airport (PIT) to Washington Dulles Intl. Airport (IAD)?
Depending on your fare type, a fee typically applies if you modify or cancel your flight more than 24 hours after it's confirmed. To secure flexible fares, select our "Changes included" or "No cancel fee" filter when you look for flights. For more information on canceling or modifying your reservation, head to "Trips," select your flight and tick "Manage Booking."

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*Available to One Key members.