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$60+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$117
(United Airlines)

One-way from

$60
(Trip.com)

Popular in

June

Cheapest in

April

Average price

$249

Good round-trip deal

$113 or less

Good one-way deal

$56 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. 15% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/1510:20 pmIAD - LGA
Nonstop1h 23mUnited Airlines
Mon 10/206:00 amLGA - IAD
Nonstop1h 32mUnited Airlines
Deal found 9/15$117
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/2312:40 pmIAD - LGA
Nonstop1h 34mUnited Airlines
Sun 10/266:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 9/14$121
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 11/110:12 pmIAD - LGA
Nonstop1h 18mUnited Airlines
Sun 11/25:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 9/14$126
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/296:15 amIAD - EWR
Nonstop1h 14mUnited Airlines
Thu 10/29:00 pmEWR - IAD
Nonstop1h 28mUnited Airlines
Deal found 9/15$127
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/45:13 pmIAD - LGA
Nonstop1h 34mUnited Airlines
Sat 10/117:29 pmLGA - IAD
Nonstop1h 32mUnited Airlines
Deal found 9/14$127
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/1010:35 pmIAD - EWR
Nonstop1h 24mUnited Airlines
Sun 12/146:00 amEWR - IAD
Nonstop1h 20mUnited Airlines
Deal found 9/15$129
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 12/810:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Tue 12/910:25 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 9/14$129
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/2010:12 pmIAD - LGA
Nonstop1h 18mUnited Airlines
Fri 12/56:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 9/14$132
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/1710:35 pmIAD - EWR
Nonstop1h 24mUnited Airlines
Sun 10/199:03 pmEWR - IAD
Nonstop1h 28mUnited Airlines
Deal found 9/15$133
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 10/610:20 pmIAD - LGA
Nonstop1h 23mUnited Airlines
Wed 10/810:24 amLGA - IAD
Nonstop1h 30mUnited Airlines
Deal found 9/14$133
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 9/2910:20 pmIAD - LGA
Nonstop1h 23mUnited Airlines
Fri 10/310:24 amLGA - IAD
Nonstop1h 30mUnited Airlines
Deal found 9/14$135
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/3010:20 pmIAD - LGA
Nonstop1h 23mUnited Airlines
Sat 10/46:00 amLGA - IAD
Nonstop1h 32mUnited Airlines
Deal found 9/15$136

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 September 16, 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.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Thu 10/16

10:20 pm-11:43 pm

Nonstop1h 23m

New York LaGuardia

Mon 10/20

6:00 am-7:32 am

Nonstop1h 32m

$117

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Wed 10/15

10:20 pm-11:43 pm

Nonstop1h 23m

New York LaGuardia

Sat 10/18

6:00 am-7:32 am

Nonstop1h 32m

$117

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Thu 1/22

8:20 am-9:47 am

Nonstop1h 27m

New York LaGuardia

Sat 1/24

6:00 am-7:30 am

Nonstop1h 30m

$117

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Wed 10/8

10:20 pm-11:43 pm

Nonstop1h 23m

New York LaGuardia

Sat 10/11

7:29 pm-9:01 pm

Nonstop1h 32m

$117

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Thu 10/23

12:40 pm-2:14 pm

Nonstop1h 34m

New York LaGuardia

Sun 10/26

6:00 am-7:27 am

Nonstop1h 27m

$121

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Sat 11/1

10:12 pm-11:30 pm

Nonstop1h 18m

New York LaGuardia

Sun 11/2

5:00 am-6:27 am

Nonstop1h 27m

$126

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Sun 11/9

8:19 am-9:44 am

Nonstop1h 25m

New York LaGuardia

Wed 11/12

6:00 am-7:27 am

Nonstop1h 27m

$127

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Tue 10/14

8:30 am-9:50 am

Nonstop1h 20m

Newark

Tue 10/21

7:42 pm-9:11 pm

Nonstop1h 29m

$129

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Sun 10/12

8:30 am-9:50 am

Nonstop1h 20m

Newark

Mon 10/13

9:00 pm-10:28 pm

Nonstop1h 28m

$129

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Thu 10/16

6:15 am-7:29 am

Nonstop1h 14m

Newark

Wed 10/22

9:00 pm-10:28 pm

Nonstop1h 28m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 September 16, 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.

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

Explore weekly flight availability from Dulles Intl to Pennsylvania. 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 September 16, 2025.

The most flights from IAD to USPA are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

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 September 16, 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
8,929 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

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
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Pennsylvania?

    A quick flight from Washington, D.C. Dulles Intl Airport to Pennsylvania can take about 1h 23m. United Airlines provides one of the quickest options available for as low as $117. The distance between Washington, D.C. Dulles Intl Airport and Pennsylvania is about 228 mi. This flight may include one or multiple stops.

  • 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 United Airlines ($65), Southern / Mokulele ($68), and Delta ($69).

  • 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: Mesa Airlines (83%), Air Canada (80%), Ethiopian Air (80%).

  • 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 $199. On average you can expect to pay $475. The most popular route, (Washington, D.C. Dulles Intl - New York John F Kennedy Intl), can usually be booked for $137.

  • 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.
Dulles Intl to Dallas/Fort Worth flights
Baltimore to Boston flights
Dulles Intl to Los Angeles flights
Reagan-National to Dallas/Fort Worth flights
Reagan-National to Los Angeles flights
Dulles Intl to Atlanta flights
Dulles Intl to Las Vegas flights
Dulles Intl to Orlando flights
Baltimore to Dallas/Fort Worth flights
Reagan-National to O'Hare Intl flights
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Dulles Intl to O'Hare Intl flights
Reagan-National to Miami flights
Reagan-National to Orlando flights
Dulles Intl to Miami flights
Baltimore to O'Hare Intl flights
Reagan-National to Boston flights
Reagan-National to Seattle flights
Baltimore to Las Vegas flights
Reagan-National to Las Vegas flights
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Baltimore to Orlando flights
Dulles Intl to Sky Harbor Intl flights
Baltimore to Fort Lauderdale flights
Baltimore to Los Angeles flights
Reagan-National to San Francisco flights
Baltimore to San Francisco flights
Reagan-National to Atlanta flights
Baltimore to Atlanta flights
Baltimore to Denver flights
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Baltimore to Seattle flights
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Baltimore to Miami flights
Dulles Intl to Hobby flights
Baltimore to Sky Harbor Intl flights
Dulles Intl to Tampa flights
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Dulles Intl to Midway flights
Baltimore to Midway flights
Dulles Intl to Denver flights
Reagan-National to Fort Lauderdale flights
Dulles Intl to Austin flights
Baltimore to Hobby flights
Dulles Intl to San Diego flights
Dulles Intl to Minneapolis flights
Reagan-National to Detroit flights
Reagan-National to Sky Harbor Intl flights
Dulles Intl to Charlotte flights

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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$113Average$192FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$179Average$313FlexibilityNo cancel feeOn-time69%

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