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$55+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHL
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$95
(United Airlines)

One-way from

$55
(Frontier)

Popular in

June

Cheapest in

April

Average price

$299

Good round-trip deal

$98 or less

Good one-way deal

$98 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Philadelphia flights.
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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. 13% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 6, 2025.

This United Airlines deal was found by Cheapflights users on 11/5. 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 12/310:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Wed 12/106:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 11/5$95
This United Airlines deal was found by Cheapflights users on 11/6. 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 12/310:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Fri 12/56:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 11/6$97
This Priceline deal was found by Cheapflights users on 11/5. 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 12/47:18 pmIAD - JFK
1 stop5h 41mFrontier
Tue 12/96:15 amJFK - IAD
1 stop8h 14mFrontier
Deal found 11/5$110
This Frontier deal was found by Cheapflights users on 11/5. 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.
Wed 11/198:40 amIAD - LGA
1 stop10h 49mFrontier
Thu 11/206:15 amLGA - IAD
1 stop11h 31mFrontier
Deal found 11/5$110
This Frontier deal was found by Cheapflights users on 11/6. 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.
Thu 12/47:18 pmIAD - JFK
1 stop5h 41mFrontier
Mon 12/86:00 amJFK - IAD
1 stop9h 05mFrontier
Deal found 11/6$111
This Frontier deal was found by Cheapflights users on 11/5. 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.
Wed 12/39:00 amIAD - LGA
1 stop7h 29mFrontier
Wed 12/106:20 amLGA - IAD
1 stop8h 09mFrontier
Deal found 11/5$111
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/2610:12 pmIAD - LGA
Nonstop1h 18mUnited Airlines
Thu 12/116:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 11/5$112
This United Airlines deal was found by Cheapflights users on 11/6. 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 12/78:15 amIAD - LGA
Nonstop1h 25mUnited Airlines
Mon 12/86:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 11/6$118
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:18 pmIAD - JFK
1 stop5h 41mFrontier
Sat 12/66:59 amJFK - IAD
1 stop13h 25mFrontier
Deal found 11/5$119
This Mytrip deal was found by Cheapflights users on 11/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/109:00 amIAD - LGA
1 stop7h 29mFrontier
Thu 12/114:30 pmLGA - IAD
1 stop22h 35mFrontier
Deal found 11/6$120
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/2710:20 pmIAD - LGA
Nonstop1h 23mUnited Airlines
Thu 1/110:26 amLGA - IAD
Nonstop1h 29mUnited Airlines
Deal found 11/4$121
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/196:00 amIAD - EWR
Nonstop1h 18mUnited Airlines
Fri 12/199:44 pmEWR - IAD
Nonstop1h 22mUnited Airlines
Deal found 11/5$129

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 November 6, 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

Wed 11/26

10:12 pm-11:30 pm

Nonstop1h 18m

New York LaGuardia

Thu 12/11

6:00 am-7:27 am

Nonstop1h 27m

$112

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Mon 12/8

10:23 pm-11:44 pm

Nonstop1h 21m

New York LaGuardia

Wed 12/10

6:00 am-7:27 am

Nonstop1h 27m

$117

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Sun 12/21

10:28 pm-11:44 pm

Nonstop1h 16m

Newark

Sat 12/27

6:00 am-7:23 am

Nonstop1h 23m

$129

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Thu 12/4

7:18 pm-12:59 am

1 stop5h 41m

New York John F Kennedy Intl

Thu 12/11

1:00 pm-11:10 pm

1 stop10h 10m

$130

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Mon 2/2

12:23 pm-1:49 pm

Nonstop1h 26m

New York John F Kennedy Intl

Fri 2/6

10:20 am-11:43 am

Nonstop1h 23m

$137

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Wed 12/3

7:59 pm-9:29 pm

Nonstop1h 30m

New York John F Kennedy Intl

Thu 12/4

10:08 am-11:39 am

Nonstop1h 31m

$137

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Fri 12/5

7:59 pm-9:29 pm

Nonstop1h 30m

New York John F Kennedy Intl

Sun 12/7

10:08 am-11:39 am

Nonstop1h 31m

$137

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Wed 11/19

8:45 am-10:05 am

Nonstop1h 20m

Newark

Thu 11/20

3:03 pm-4:25 pm

Nonstop1h 22m

$137

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Sat 12/6

12:19 pm-1:41 pm

Nonstop1h 22m

New York John F Kennedy Intl

Sat 12/13

5:46 pm-7:19 pm

Nonstop1h 33m

$137

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Thu 12/4

7:59 pm-9:29 pm

Nonstop1h 30m

New York John F Kennedy Intl

Thu 12/11

10:08 am-11:39 am

Nonstop1h 31m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Pennsylvania (average of $113). Flying from Washington, D.C. Dulles Intl Airport to Pennsylvania in May is currently the most expensive (average of $158). 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 November 6, 2025.

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Pennsylvania at noon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Pennsylvania?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Pennsylvania. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Pennsylvania flight should consider departing on Sunday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 6, 2025.

The most flights from IAD to USPA are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 November 6, 2025.
Get a feel of what it's like to fly with United Airlines and Southern / Mokulele 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
9,004 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,004 reviews
United Airlines
7.4
Good
9,004 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Southern / Mokulele
6.3
Okay
26 reviews
United Airlines
7.4
Good
9,004 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 18m. United Airlines provides one of the quickest options available for as low as $112. 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 ($59), Delta ($69), and Southern / Mokulele ($84).

  • 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 - Newark or Washington, D.C. Dulles Intl - New York LaGuardia 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: GoJet (90%), ANA (90%), United Airlines (89%).

  • 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 $179. On average you can expect to pay $478. The most popular route, (Washington, D.C. Dulles Intl - New York John F Kennedy Intl), can usually be booked for $127.

  • 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Pennsylvania (average of $113). Flying from Washington, D.C. Dulles Intl Airport to Pennsylvania in May is currently the most expensive (average of $158). 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.

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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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Baltimore to San Francisco flights
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Reagan-National to Sky Harbor Intl flights
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Reagan-National to George Bush Intcntl 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$78Average$164FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$177Average$346FlexibilityNo cancel feeOn-time69%

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