The cheapest times to fly from IAD to PIT are

  • August 6th to February 25th (except the weeks of November 19th, November 26th, and December 24th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from IAD to PIT is early October. Prices can be as high as $540 for Thursday flights during mid May, or as low as $237 for Tuesday flights around early October.


When to Fly to Pittsburgh

Flying from Washington, DC (IAD) to Pittsburgh, PA (PIT) will usually cost between $266 to $341 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early October with an average ticket price of $274. Due to high demand the most expensive time to fly is mid May, with an average price of $368. Planning your trip to low-cost times can easily save you $94 on economy flights and even more on first-class flights. Generally, any price below $332 can be considered a good price for a round-trip IAD to PIT flight.

See below for a graph of average weekly prices for the IAD to PIT route. All prices are for round-trip tickets in USD.

IAD to PIT Flight Prices

Compared to other flights, the IAD to PIT flight is much cheaper than the average and costs much less than the average flight leaving from Washington. The average price per mile (for a direct flight) is $1.13, which is above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Thursdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $24 (7%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $305. Return trip prices are from the PIT to IAD flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from IAD to PIT can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 19 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from IAD to PIT while comparing.

Destination alternative #1: North Central West Virginia Airport (CKB) in Clarksburg/Fairmont, WV

  • 82 miles (132 km) away from PIT
  • Usually 52.94% less expensive than PIT
  • Nonstop flights available

See IAD to CKB flights

Destination alternative #2: John Glenn Columbus International Airport (CMH) in Columbus, OH

  • 144 miles (232 km) away from PIT
  • Usually 31.67% less expensive than PIT
  • Nonstop flights available

See IAD to CMH flights

Destination alternative #3: Cleveland-Hopkins International Airport (CLE) in Cleveland, OH

  • 106 miles (171 km) away from PIT
  • Usually 19.76% less expensive than PIT
  • Nonstop flights available

See IAD to CLE flights

Destination alternative #4: Akron-Canton Regional Airport (CAK) in Akron, OH

  • 70 miles (113 km) away from PIT
  • Usually 6.49% less expensive than PIT
  • 1-layover flights available

See IAD to CAK flights


Flight Questions Answered

Still have questions about flying from IAD to PIT? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: American, Delta, Frontier, Qantas, Southwest, United, and potentially more during busy seasons.

How far away is it from Pittsburgh International Airport to Washington Dulles International Airport?

The distance between the two airports is roughly 182 miles or 293 kilometers.

How long does it take to fly from IAD to PIT?

The real-world flight time for a nonstop IAD to PIT flight is about 1 hour 19 minutes.

How many flights go between Washington, DC and Pittsburgh, PA?

It depends on the day of the week and the date, but a typical day might have around 53 available flights from IAD to PIT.


Airport Location Info


Departing Airport

Origination code IAD
Origination airport name Washington Dulles International Airport
City Washington, DC
Country the United States
Latitude 38.9
Longitude -77.5

Return Airport

Destination code PIT
Destination airport name Pittsburgh International Airport
City Pittsburgh, PA
Country the United States
Latitude 40.5
Longitude -80.2


Late and Early Flight Data

Flights from IAD to PIT tend to depart late far less frequently than the average flight. According to our recently updated data, 18% of flights departed 5 or more minutes late, and 34% of flights left 5 or more minutes early. On average you can expect to leave PIT heading for IAD about 7 minutes late. This does significantly impact arrival time, as the average landing time in Pittsburgh, PA is about 5 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • Mesa: 7 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.