Cheap Flights from Pittsburgh (PIT) to Washington (IAD)

View AU$120 flight on Fri, 5 Sep. 2025Opens in a new window

Popular airlines from Pittsburgh International Airport (PIT) to Washington Dulles International Airport (IAD)

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Cheap Flights from Pittsburgh (PIT) to Washington (IAD)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Pittsburgh (PIT) to Washington (IAD)

April is typically the cheapest month to fly

From AU$213 - AU$245 per traveller.

Graph displaying average flight prices per month

Flight from Pittsburgh to Washington route information
Origin airport
Pittsburgh Intl.
Destination airport
Washington Dulles Intl.
Distance
293 km
Average flight time
1 hour 11 mins

Your quick guide to flights from Pittsburgh to Washington

Pick up great flights from Pittsburgh to Washington

With Expedia, you have your pick of flights a day with 13 airlines covering flights from Pittsburgh to Washington. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Pittsburgh to Washington that take around hours.

Find cheap flights from Pittsburgh to Washington

From the great flight deals with prices currently ranging from to , you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Pittsburgh to Washington around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Washington is normally in .

Reasons to book your flight from Pittsburgh to Washington with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Pittsburgh to Washington across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Washington right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from PIT to IAD?
Based on fares offered within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Pittsburgh Intl. Airport (PIT) to IAD start from . Book today to secure the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from PIT to IAD?
We understand that things crop up unexpectedly, so we've made it as simple as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Pittsburgh Intl. Airport (PIT) to IAD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Pittsburgh Airport to Washington Dulles Intl. Airport (IAD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Pittsburgh Airport to Washington Dulles Intl. Airport (IAD)?
The flight distance from PIT (PIT) to Washington Dulles Intl. Airport (IAD) (IAD) is only 300 kilometres. You'll be walking down the air bridge and picking up your bags from the carousel in no time.
Which airlines fly direct from PIT to IAD?
A popular choice with many travellers, United Airlines (UA) offers 91 flights monthly from PIT to IAD. Pick the one that fits with your travel plans and book your ticket today.
Are PIT to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes find a bargain, with some of the cheapest airfares from PIT to Dulles Intl. Airport popping up a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates the best flight deals regularly — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines issue prices so far in advance.

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