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$59+ Cheap flights from Dulles Intl (IAD) to Pennsylvania

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Dulles Intl to Pennsylvania

Keep the following information in mind while searching for Dulles Intl to Pennsylvania flight deals. Data was last updated August 14, 2025.

Round-trip from

$129
(United Airlines)

One-way from

$59
(Trip.com)

Popular in

August

Cheapest in

April

Average price

$819

Good round-trip deal

$98 or less

Good one-way deal

$64 or less
From Washington, D.C. Dulles Intl to Pennsylvania
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One-way flight from Washington, D.C. Dulles Intl to Pennsylvania
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Highest demand for flights based on searches. 25% potential increase in price ($122 potential increase over avg. RT price).
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Cheapest flight prices on average. 14% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Pennsylvania.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Pennsylvania.
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Find flight deals from Dulles Intl to Pennsylvania

Cheapest flights from Dulles Intl to Pennsylvania
Explore the most affordable flight options available from Dulles Intl to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/14. 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 10/310:35 pmIAD - EWR
Nonstop1h 24mUnited Airlines
Mon 10/67:42 pmEWR - IAD
Nonstop1h 29mUnited Airlines
Deal found 8/14$129
This Delta deal was found by Cheapflights users on 8/12. 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.
Sat 9/278:17 pmIAD - JFK
Nonstop1h 28mDelta
Mon 9/2910:30 amJFK - IAD
Nonstop1h 26mDelta
Deal found 8/12$129
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/1210:08 pmIAD - LGA
Nonstop1h 22mUnited Airlines
Tue 9/166:00 amLGA - IAD
Nonstop1h 30mUnited Airlines
Deal found 8/12$129
This Delta deal was found by Cheapflights users on 8/14. 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.
Sat 9/208:17 pmIAD - JFK
Nonstop1h 28mDelta
Sun 9/2110:30 amJFK - IAD
Nonstop1h 26mDelta
Deal found 8/14$131
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Mon 9/16:20 amIAD - EWR
Nonstop1h 14mUnited Airlines
Thu 9/49:10 pmEWR - IAD
Nonstop1h 29mUnited Airlines
Deal found 8/13$138
This Delta deal was found by Cheapflights users on 8/12. 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.
Fri 9/268:17 pmIAD - JFK
Nonstop1h 28mDelta
Fri 10/35:55 pmJFK - IAD
Nonstop1h 42mDelta
Deal found 8/12$138
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/1810:08 pmIAD - LGA
Nonstop1h 22mUnited Airlines
Fri 9/196:00 amLGA - IAD
Nonstop1h 30mUnited Airlines
Deal found 8/13$138
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:55 pmIAD - LGA
1 stop10h 02mFrontier
Thu 9/186:30 amLGA - IAD
1 stop6h 25mFrontier
Deal found 8/14$144
This United Airlines deal was found by Cheapflights users on 8/14. 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 8/286:20 amIAD - EWR
Nonstop1h 14mUnited Airlines
Sun 8/313:00 pmEWR - IAD
Nonstop1h 24mUnited Airlines
Deal found 8/14$147
This Delta deal was found by Cheapflights users on 8/12. 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.
Sat 8/308:23 pmIAD - JFK
Nonstop1h 39mDelta
Sun 8/315:50 pmJFK - IAD
Nonstop1h 53mDelta
Deal found 8/12$147
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 8/2612:40 pmIAD - LGA
Nonstop1h 33mUnited Airlines
Thu 8/282:59 pmLGA - IAD
Nonstop1h 30mUnited Airlines
Deal found 8/12$147
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:10 amIAD - JFK
1 stop5h 49mFrontier
Wed 9/101:01 pmJFK - IAD
1 stop6h 54mFrontier
Deal found 8/14$148

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Pennsylvania 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 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Pennsylvania that are best for you.

Fly from

Dulles Intl

Fly to

Pennsylvania

Route

Depart

Return

Price

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Sat 9/6

10:32 pm-11:56 pm

Nonstop1h 24m

Newark

Mon 9/15

7:15 pm-8:41 pm

Nonstop1h 26m

$129

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Tue 9/16

12:08 pm-1:29 pm

Nonstop1h 21m

New York John F Kennedy Intl

Fri 9/19

5:55 pm-7:37 pm

Nonstop1h 42m

$129

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Tue 9/9

8:40 am-10:00 am

Nonstop1h 20m

Newark

Wed 9/10

7:15 pm-8:41 pm

Nonstop1h 26m

$129

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Fri 9/12

8:17 pm-9:45 pm

Nonstop1h 28m

New York John F Kennedy Intl

Tue 9/16

10:30 am-11:56 am

Nonstop1h 26m

$129

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Fri 9/19

10:32 pm-11:56 pm

Nonstop1h 24m

Newark

Sun 9/28

10:41 pm-11:59 pm

Nonstop1h 18m

$129

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Fri 9/12

8:17 pm-9:45 pm

Nonstop1h 28m

New York John F Kennedy Intl

Wed 9/17

5:55 pm-7:37 pm

Nonstop1h 42m

$129

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Wed 9/10

6:20 am-7:34 am

Nonstop1h 14m

Newark

Wed 9/10

2:59 pm-4:23 pm

Nonstop1h 24m

$129

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Mon 9/15

8:17 pm-9:45 pm

Nonstop1h 28m

New York John F Kennedy Intl

Wed 10/15

5:40 pm-7:18 pm

Nonstop1h 38m

$129

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Fri 9/12

6:20 am-7:34 am

Nonstop1h 14m

Newark

Sun 9/14

6:00 am-7:19 am

Nonstop1h 19m

$129

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Wed 10/8

7:59 pm-9:30 pm

Nonstop1h 31m

New York John F Kennedy Intl

Tue 10/28

5:40 pm-7:18 pm

Nonstop1h 38m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Dulles Intl 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Pennsylvania

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Pennsylvania (average of $236). Flying from Washington, D.C. Dulles Intl Airport to Pennsylvania in March is currently the most expensive (average of $295). 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 IAD to PA?

Find hourly flight availability from Dulles Intl to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

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

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. 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 Pennsylvania. Reviews last updated August 14, 2025.
Get a feel of what it's like to fly with United Airlines from Washington, D.C. Dulles Intl Airport to Pennsylvania by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Pennsylvania. 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 Washington, D.C. Dulles Intl Airport to Pennsylvania one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Pennsylvania are Southern / Mokulele ($59), United Airlines ($65), and Delta ($65).

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

    When deciding which route to take from Washington, D.C. Dulles Intl Airport to Pennsylvania consider Washington, D.C. Dulles Intl - New York John F Kennedy Intl, Washington, D.C. Dulles Intl - New York LaGuardia or Washington, D.C. Dulles Intl - Newark as they are the most popular.

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

    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 Washington, D.C. Dulles Intl Airport to Pennsylvania on time: ANA (72%), Air Canada (70%), Mesa Airlines (70%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Pennsylvania is $239. On average you can expect to pay $443. The most popular route, (Washington, D.C. Dulles Intl - New York John F Kennedy Intl), can usually be booked for $129.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Pennsylvania 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 Washington, D.C. Dulles Intl Airport to Pennsylvania?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Pennsylvania (average of $236). Flying from Washington, D.C. Dulles Intl Airport to Pennsylvania in March is currently the most expensive (average of $295). 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

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Alternative routes for Dulles Intl to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Dulles Intl to Pennsylvania

Discover the top 2 airlines that operate flights from Dulles Intl to Pennsylvania. 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 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$112Average$187FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$169Average$296FlexibilityNo cancel feeOn-time69%

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