HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$50+ Cheap flights from Pennsylvania to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — IAD
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pennsylvania to Dulles Intl with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Pennsylvania to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Pennsylvania (USPA) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Find flight deals from Pennsylvania to Dulles Intl

Cheapest flights from Pennsylvania to Dulles Intl
Explore the most affordable flight options available from Pennsylvania to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Frontier deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/610:11 pmEWR - IAD
1 stop11h 34mFrontier
Wed 12/113:28 pmIAD - EWR
1 stop5h 43mFrontier
Deal found 11/20$138
This Booking.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2812:45 pmPIT - IAD
1 stop22h 35mSouthern / Mokulele
Thu 12/2612:55 pmIAD - PIT
1 stop5h 05mSouthern / Mokulele
Deal found 11/20$168
This United Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/206:10 amPIT - IAD
Nonstop1h 15mUnited Airlines
Sun 12/2910:10 pmIAD - PIT
Nonstop1h 04mUnited Airlines
Deal found 11/21$179
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/126:20 amPHL - IAD
Nonstop1h 13mUnited Airlines
Sat 12/148:35 amIAD - PHL
Nonstop1h 06mUnited Airlines
Deal found 11/20$179
This CheapOair deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1710:00 amJFK - IAD
1 stop8h 12mFrontier
Wed 12/185:28 pmIAD - JFK
1 stop15h 35mFrontier
Deal found 11/21$185
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:00 amEWR - IAD
Nonstop1h 19mUnited Airlines
Wed 12/115:35 pmIAD - EWR
Nonstop1h 25mUnited Airlines
Deal found 11/20$189
This United Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/610:05 amAVP - IAD
Nonstop1h 11mUnited Airlines
Tue 12/1010:10 pmIAD - AVP
Nonstop1h 08mUnited Airlines
Deal found 11/21$189
This United Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/156:20 amSCE - IAD
Nonstop1h 10mUnited Airlines
Fri 1/178:35 amIAD - SCE
Nonstop1h 05mUnited Airlines
Deal found 11/21$189
This Delta deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/243:15 pmJFK - IAD
Nonstop1h 32mDelta
Wed 1/1512:05 pmIAD - JFK
Nonstop1h 24mDelta
Deal found 11/21$194
This United Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/126:00 amLGA - IAD
Nonstop1h 20mUnited Airlines
Wed 12/188:20 amIAD - LGA
Nonstop1h 19mUnited Airlines
Deal found 11/21$207
This Frontier deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2310:00 pmLGA - IAD
1 stop9h 58mFrontier
Tue 1/71:00 pmIAD - LGA
1 stop9h 00mFrontier
Deal found 11/20$208
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/273:40 pmMDT - IAD
1 stop3h 51mAmerican Airlines
Thu 12/55:00 amIAD - MDT
1 stop4h 20mAmerican Airlines
Deal found 11/20$213

Find flights from Pennsylvania to Dulles Intl within your budget

Customize your flight search to find flights from Pennsylvania to Dulles Intl 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, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Mon 2/3

10:44 am-5:05 pm

1 stop6h 21m

Washington, D.C. Dulles Intl

Thu 2/6

4:42 pm-10:00 pm

1 stop5h 18m

$106

NewarkWashington, D.C.

EWR - IAD

EWRIAD

Newark

Sun 1/26

10:00 pm-9:49 am

1 stop11h 49m

Washington, D.C. Dulles Intl

Tue 1/28

12:37 pm-9:10 pm

1 stop8h 33m

$118

New YorkWashington, D.C.

JFK - IAD

JFKIAD

New York John F Kennedy Intl

Wed 1/22

11:04 am-7:17 am

1 stop20h 13m

Washington, D.C. Dulles Intl

Sun 1/26

5:57 pm-1:59 pm

1 stop20h 02m

$125

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Sat 12/14

11:59 am-7:10 am

1 stop19h 11m

Washington, D.C. Dulles Intl

Sun 12/15

12:55 pm-5:38 pm

1 stop4h 43m

$168

PittsburghWashington, D.C.

PIT - IAD

PITIAD

Pittsburgh

Fri 12/20

6:10 am-7:25 am

Nonstop1h 15m

Washington, D.C. Dulles Intl

Sun 12/29

10:10 pm-11:14 pm

Nonstop1h 04m

$179

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

Thu 1/9

2:46 pm-4:01 pm

Nonstop1h 15m

Washington, D.C. Dulles Intl

Mon 1/13

8:30 am-9:41 am

Nonstop1h 11m

$179

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Wed 12/18

6:00 am-7:20 am

Nonstop1h 20m

Washington, D.C. Dulles Intl

Wed 12/18

10:05 pm-11:28 pm

Nonstop1h 23m

$189

NewarkWashington, D.C.

EWR - IAD

EWRIAD

Newark

Wed 12/11

6:00 am-7:19 am

Nonstop1h 19m

Washington, D.C. Dulles Intl

Wed 12/11

5:35 pm-7:00 pm

Nonstop1h 25m

$189

ScrantonWashington, D.C.

AVP - IAD

AVPIAD

Wilkes-Barre Scranton

Fri 12/6

10:05 am-11:16 am

Nonstop1h 11m

Washington, D.C. Dulles Intl

Tue 12/10

10:10 pm-11:18 pm

Nonstop1h 08m

$189

State CollegeWashington, D.C.

SCE - IAD

SCEIAD

State College University Park

Sun 12/15

6:20 am-7:30 am

Nonstop1h 10m

Washington, D.C. Dulles Intl

Fri 1/17

8:35 am-9:40 am

Nonstop1h 05m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Pennsylvania to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Pennsylvania with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Pennsylvania to Dulles Intl

Get recent, data-driven insights about flights from Pennsylvania to Dulles Intl including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Pennsylvania to Washington, D.C. Dulles Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Pennsylvania to Washington, D.C. Dulles Intl Airport (average of $299). Flying from Pennsylvania to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $377). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PA to IAD?

Find hourly flight availability from Pennsylvania to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

When flying from Pennsylvania to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Pennsylvania to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Pennsylvania to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 21, 2024.

The most flights from USPA to IAD are scheduled on a Thursday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated November 21, 2024.
Get a feel of what it's like to fly with Frontier, United Airlines and American Airlines from Pennsylvania to Washington, D.C. by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Entertainment

7.1

Food

7.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines
8.0
Very good
9,464 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Entertainment

7.1

Food

7.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta
8.0
Very good
8,755 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Entertainment

7.1

Food

7.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Porter Airlines
7.8
Good
288 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Entertainment

7.1

Food

7.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Qatar Airways
7.5
Good
3,829 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Entertainment

7.1

Food

7.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

United Airlines
7.4
Good
9,172 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Entertainment

7.1

Food

7.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Pennsylvania to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as $50 on Frontier. Other airlines that offer cheap prices include Southern / Mokulele from $72 and United Airlines from $95 one-way.

  • What are the most popular routes from Pennsylvania to Washington, D.C. Dulles Intl Airport?

    Most travelers choose Newark - Washington, D.C. Dulles Intl, New York John F Kennedy Intl - Washington, D.C. Dulles Intl or New York LaGuardia - Washington, D.C. Dulles Intl when deciding on the best route from Pennsylvania to Washington, D.C. Dulles Intl Airport.

  • What are the most reliable airlines from Pennsylvania to Washington, D.C. Dulles Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Pennsylvania to Washington, D.C. Dulles Intl Airport on time: Air China (100%), Air Canada (97%), ANA (95%).

  • What are the cheapest flights from Pennsylvania to Washington, D.C. Dulles Intl Airport?

    While on average a flight from Pennsylvania to Washington, D.C. Dulles Intl Airport is generally $940, our data shows the cheapest flight currently is $117. When looking at the most popular route, (Newark - Washington, D.C. Dulles Intl), you can expect to pay $128 for that flight.

  • Can I find deals for flights from Pennsylvania to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Dulles Intl.

  • Can I find deals for business class flights from Pennsylvania to Dulles Intl?

    Yes. Cheapflights offers flight deals from Pennsylvania to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pennsylvania to Washington, D.C. Dulles Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Pennsylvania to Washington, D.C. Dulles Intl Airport (average of $299). Flying from Pennsylvania to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $377). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pennsylvania to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Baltimore flights
Los Angeles to Dulles Intl flights
Los Angeles to Reagan-National flights
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Baltimore flights
Boston to Dulles Intl flights
Dallas/Fort Worth to Reagan-National flights
Hobby to Baltimore flights
Atlanta to Dulles Intl flights
Seattle to Dulles Intl flights
San Francisco to Dulles Intl flights
San Francisco to Reagan-National flights
Boston to Reagan-National flights
Atlanta to Reagan-National flights
Seattle to Reagan-National flights
San Francisco to Baltimore flights
Boston to Baltimore flights
Fort Lauderdale to Baltimore flights
Hobby to Reagan-National flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Baltimore flights
Atlanta to Baltimore flights
Orlando to Dulles Intl flights
Orlando to Reagan-National flights
Miami to Reagan-National flights
George Bush Intcntl to Baltimore flights
Seattle to Baltimore flights
Hobby to Dulles Intl flights
O'Hare Intl to Reagan-National flights
John F Kennedy Intl to Reagan-National flights
Denver to Baltimore flights
George Bush Intcntl to Dulles Intl flights
Denver to Dulles Intl flights
Denver to Reagan-National flights
Newark to Dulles Intl flights
Detroit to Baltimore flights
Miami to Baltimore flights
Austin to Dulles Intl flights
Charlotte to Dulles Intl flights
Fort Lauderdale to Dulles Intl flights
Orlando to Baltimore flights
LaGuardia to Reagan-National flights
George Bush Intcntl to Reagan-National flights
San Diego to Dulles Intl flights
Minneapolis to Baltimore flights
Miami to Dulles Intl flights
Burbank to Baltimore flights
Tampa to Reagan-National flights
Tampa to Dulles Intl flights
Fort Lauderdale to Reagan-National flights

Top 2 airlines flying from Pennsylvania to Dulles Intl

Discover the top 2 airlines that operate flights from Pennsylvania to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$98Average$255FlexibilityNo cancel feeOn-time69%
Southern / MokuleleCheapest$102Average$128FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines