Cheap Flights from Pittsburgh International to Washington Dulles

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Compare Pittsburgh International to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

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Flight deals from Pittsburgh International to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Pittsburgh International Airport to Washington Dulles Airport? If you want to travel next month, return fares start from $196. Find the lowest prices on one-way and return tickets right here.

Washington D.C..$195 per passenger.Departing Thu, 11 Feb, returning Thu, 18 Feb.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Thu, 11 Feb, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 18 Feb, arriving in Pittsburgh International.Price includes taxes and charges.From $195, select.

Washington D.C..$195 per passenger.Departing Sat, 26 Sep, returning Sat, 3 Oct.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Sat, 26 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 3 Oct, arriving in Pittsburgh International.Price includes taxes and charges.From $195, select.

Washington D.C..$196 per passenger.Departing Sat, 14 Nov, returning Wed, 18 Nov.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Sat, 14 Nov, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 18 Nov, arriving in Pittsburgh International.Price includes taxes and charges.From $196, select.

Washington D.C..$196 per passenger.Departing Thu, 28 Jan, returning Tue, 2 Feb.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Thu, 28 Jan, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 2 Feb, arriving in Pittsburgh International.Price includes taxes and charges.From $196, select.

Washington D.C..$196 per passenger.Departing Wed, 16 Dec, returning Thu, 14 Jan.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Wed, 16 Dec, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 14 Jan, arriving in Pittsburgh International.Price includes taxes and charges.From $196, select.

Washington D.C..$196 per passenger.Departing Sat, 3 Oct, returning Tue, 6 Oct.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Sat, 3 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 6 Oct, arriving in Pittsburgh International.Price includes taxes and charges.From $196, select.

Washington D.C..$196 per passenger.Departing Sat, 16 Jan, returning Sat, 16 Jan.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Sat, 16 Jan, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 16 Jan, arriving in Pittsburgh International.Price includes taxes and charges.From $196, select.

Washington D.C..$196 per passenger.Departing Sat, 3 Oct, returning Wed, 18 Nov.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Sat, 3 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 18 Nov, arriving in Pittsburgh International.Price includes taxes and charges.From $196, select.

Washington D.C..$196 per passenger.Departing Wed, 16 Sep, returning Wed, 23 Sep.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Wed, 16 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 23 Sep, arriving in Pittsburgh International.Price includes taxes and charges.From $196, select.

Washington D.C..$258 per passenger.Departing Fri, 25 Sep, returning Wed, 18 Nov.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Fri, 25 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 18 Nov, arriving in Pittsburgh International.Price includes taxes and charges.From $258, select.

Washington D.C..$450 per passenger.Departing Wed, 24 Mar, returning Mon, 29 Mar.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Wed, 24 Mar, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 29 Mar, arriving in Pittsburgh International.Price includes taxes and charges.From $450, select.

Washington D.C..$550 per passenger.Departing Sun, 30 Aug, returning Sat, 5 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Pittsburgh International on Sun, 30 Aug, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 5 Sep, arriving in Pittsburgh International.Price includes taxes and charges.From $550, select.

Washington D.C..$598 per passenger.Departing Sat, 29 Aug, returning Sat, 5 Sep.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Sat, 29 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 5 Sep, arriving in Pittsburgh International.Price includes taxes and charges.From $598, select.

Washington D.C..$601 per passenger.Departing Fri, 28 Aug, returning Sun, 30 Aug.Return flight with United.Outbound direct flight with United departs from Pittsburgh International on Fri, 28 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 30 Aug, arriving in Pittsburgh International.Price includes taxes and charges.From $601, select.

Find the cheapest month to fly from Pittsburgh International to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Pittsburgh International to Washington Dulles flights are currently cheapest in February.

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Direct flights from Pittsburgh International to Washington Dulles

Pittsburgh International to Washington Dulles: Alternative routes

Compare routes from Pittsburgh International to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Pittsburgh to Washington D.C.: Flight information

The things to know before you go.

Cheapest flight found	$195
Cheapest month to fly	February
Average flight time	1 hr, 10 mins
Most popular airline	United
Average flights per week	125

Finding cheap flights from Pittsburgh International to Washington Dulles: Frequently asked questions

How much are return flights from Pittsburgh International to Washington Dulles?

The best price we found for a return flight from Pittsburgh International to Washington Dulles is $195. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Pittsburgh International to Washington Dulles?

1 hour and 10 minutes is the average flight time from Pittsburgh International to Washington Dulles.

Which airlines fly direct from Pittsburgh International to Washington Dulles?

United, Lufthansa and Avianca fly direct from Pittsburgh International to Washington Dulles.

How many flights are there a week from Pittsburgh International to Washington Dulles?

As of August 2026, there are 125 flights per week flying from Pittsburgh International to Washington Dulles.

When is the cheapest time to fly from Pittsburgh International to Washington Dulles?

The cheapest month to fly from Pittsburgh International to Washington Dulles is usually February.

Which upcoming date is cheapest to fly from Pittsburgh International Airport to Washington Dulles Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Pittsburgh International Airport to Washington Dulles Airport on Thursday, 11 February 2027.

Can I get a direct flight from Pittsburgh International Airport to Washington Dulles Airport?

Yes – the average flight time is 1 hour and 10 minutes.

How can I find the best flight deal to Washington Dulles?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Washington D.C.?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Pittsburgh International Airport to Washington Dulles with?

Currently, United offers the cheapest flight tickets to Washington Dulles.

Travelling from Pittsburgh International Airport (PIT) to Washington Dulles Airport (IAD): what you need to know

Around 1 hour 10 minutes is how long you can expect to be in the air on a direct flight from Pittsburgh International Airport to Washington Dulles Airport.
Pittsburgh and Washington DC share the UTC-5 timezone. This means you won't have to change your watch when you arrive.
Every week, there are 28 Pittsburgh International Airport to Washington Dulles Airport flights. If you'd like to get going early, select the 06:15 United Airlines flight. If you'd rather make the most of your time before flying, the last departure is at 20:10 with United Airlines.
To ensure you catch your PIT to IAD flight, leave enough time for things like check-in and baggage drop. Turning up two hours ahead of international departures and one hour before domestic flights is the standard rule.
You'll likely experience longer queues during popular months like July. Arriving up to four hours ahead of international flights and two hours for domestic departures is a smart move.
Flying into Washington DC (and then seeing more of the United States!) is a snap with United. This popular airline has direct flights from Pittsburgh International Airport to Washington Dulles Airport.
The airline with the highest passenger demand on this route is United.
With a dependable 84.92% of services landing on schedule, United has the best on-time performance for PIT to IAD flights.
We make it a breeze to book a flight with a stopover. To see all your options for tickets from Pittsburgh International Airport to Washington Dulles Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to visit the city of your choice. Stopovers between PIT and IAD include:
- Toronto Pearson International Airport
- New York LaGuardia Airport
- Philadelphia International Airport

How to find the cheapest flights from Pittsburgh International Airport (PIT) to Washington Dulles Airport (IAD)

Right now, $98 is the cheapest price we've found for a one-way Pittsburgh International Airport to Washington Dulles Airport flight. The best price for a return plane ticket is $195. Remember that fares may change due to availability at the time of booking.
Don't wait until the last moment. You're more likely to find cheap tickets from PIT to IAD if you book early. Airlines often offer some excellent early bird rates.
May is the cheapest month for flights from Pittsburgh International Airport to Washington Dulles Airport. If you want to travel at a different time of year, the 'Whole month' tool will give you the lowest prices for every month.
There's no need to check back in every day to see if fares have gone down when you create a Price Alert. We'll send you an update the moment there's a new deal on cheap flights from PIT to IAD.
Tailor your trip with filters. Pick your preferred departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Best' or 'Cheapest' flights from Pittsburgh International Airport to Washington Dulles Airport.

Handy information about Pittsburgh International Airport (PIT)

PIT's address is 1000 Airport Boulevard.
Of the departures from Pittsburgh International Airport, 77% arrive as scheduled at their destination.
Pittsburgh International Airport is about 32 kilometres from central Pittsburgh. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 30 minutes or so to arrive, depending on the traffic.
The trip when using public transport takes roughly 45 minutes.
Searching for a convenient hotel near PIT? If you're catching an early flight from Pittsburgh International Airport to Washington Dulles Airport, these accommodation options will have you sleeping moments from your departure gate:

Arriving at Washington Dulles Airport (IAD)

Book a hotel near IAD if you have a late Pittsburgh International Airport to Washington Dulles Airport flight. Check in to one of these accommodation options and make your arrival easier:
Pick up a Washington Dulles Airport rental car and explore Washington DC and beyond with your own set of wheels. Dollar, Thrifty and Sixt are well-known companies you can book with here.
Booking your vehicle from Washington Dulles Airport about one week ahead increases your chances of getting a good deal.

When to fly to Washington Dulles Airport (IAD)

July is the most popular month for flights from Pittsburgh International Airport to Washington Dulles Airport. To skip the crowds, go to Washington DC in February.
Before locking in your flight from Pittsburgh International Airport to Washington Dulles Airport, consider the kind of weather you like. July is the warmest month in Washington DC, with the temperature ranging from 19ºC to 33ºC.
If you want cooler conditions, look for a cheap ticket from PIT to IAD in January. Temperatures average between -6ºC and 10ºC then.

Explore more of the United States

Washington DC has plenty going for it, but there are so many other parts of the United States you'll want to see. Around 322 kilometres north-east of Washington DC, a visit to New York will keep you busy. Check out popular attractions like Central Park, Statue of Liberty and Metropolitan Museum of Art.
If you want to check out another side of the United States, consider Philadelphia, roughly 193 kilometres north-east of Washington DC. Independence Hall, Liberty Bell and Philadelphia Museum of Art are key reasons to visit.