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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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHL
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$110
(Priceline)

One-way from

$55
(Priceline)

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. 11% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($21 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 13, 2025.

This Frontier deal was found by Cheapflights users on 11/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:45 amIAD - JFK
1 stop6h 15mFrontier
Mon 12/86:00 amJFK - IAD
1 stop9h 05mFrontier
Deal found 11/12$110
This Frontier deal was found by Cheapflights users on 11/11. 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.
Mon 12/85:45 amIAD - LGA
1 stop10h 44mFrontier
Thu 12/116:20 amLGA - IAD
1 stop11h 58mFrontier
Deal found 11/11$110
This Frontier deal was found by Cheapflights users on 11/11. 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 12/45:45 amIAD - LGA
1 stop10h 44mFrontier
Mon 12/86:20 amLGA - IAD
1 stop11h 05mFrontier
Deal found 11/11$111
This United Airlines deal was found by Cheapflights users on 11/12. 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.
Wed 12/312:40 pmIAD - LGA
Nonstop1h 34mUnited Airlines
Wed 12/37:29 pmLGA - IAD
Nonstop1h 28mUnited Airlines
Deal found 11/12$117
This United Airlines deal was found by Cheapflights users on 11/11. 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 12/910:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Thu 12/116:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 11/11$121
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/610:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Mon 12/86:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Deal found 11/10$122
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 12/510:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Sat 12/67:29 pmLGA - IAD
Nonstop1h 28mUnited Airlines
Deal found 11/13$127
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:00 amIAD - EWR
1 stop22h 48mMultiple Airlines
Tue 12/165:59 amEWR - IAD
1 stop8h 30mMultiple Airlines
Deal found 11/11$128
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:55 amIAD - EWR
1 stop6h 38mMultiple Airlines
Thu 12/410:30 pmEWR - IAD
1 stop17h 54mMultiple Airlines
Deal found 11/12$129
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:45 amIAD - JFK
1 stop19h 14mFrontier
Mon 12/156:00 amJFK - IAD
1 stop9h 05mFrontier
Deal found 11/13$129
This Frontier deal was found by Cheapflights users on 11/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/109:00 amIAD - EWR
1 stop12h 35mFrontier
Wed 12/175:59 amEWR - IAD
1 stop8h 30mFrontier
Deal found 11/12$130
This Priceline deal was found by Cheapflights users on 11/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:45 amIAD - JFK
1 stop6h 15mFrontier
Thu 12/111:00 pmJFK - IAD
1 stop10h 10mFrontier
Deal found 11/12$130

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 13, 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

Mon 1/12

8:20 am-9:47 am

Nonstop1h 27m

New York LaGuardia

Tue 1/13

7:29 pm-8:59 pm

Nonstop1h 30m

$122

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Mon 1/12

10:40 pm-11:59 pm

Nonstop1h 19m

Newark

Thu 1/15

3:00 pm-4:25 pm

Nonstop1h 25m

$127

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Fri 1/23

8:20 am-9:47 am

Nonstop1h 27m

New York LaGuardia

Sun 1/25

6:00 am-7:30 am

Nonstop1h 30m

$127

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Thu 1/22

5:10 pm-6:44 pm

Nonstop1h 34m

New York LaGuardia

Sat 1/24

6:00 am-7:30 am

Nonstop1h 30m

$127

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Mon 1/12

10:20 pm-11:43 pm

Nonstop1h 23m

New York LaGuardia

Thu 1/15

2:55 pm-4:25 pm

Nonstop1h 30m

$127

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Fri 12/5

10:23 pm-11:44 pm

Nonstop1h 21m

New York LaGuardia

Sat 12/6

7:29 pm-8:57 pm

Nonstop1h 28m

$127

Washington, D.C.Newark

IAD - EWR

IADEWR

Washington, D.C. Dulles Intl

Sat 12/20

10:28 pm-11:44 pm

Nonstop1h 16m

Newark

Tue 12/23

9:44 pm-11:06 pm

Nonstop1h 22m

$133

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

5:35 pm-7:09 pm

Nonstop1h 34m

$137

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Tue 3/3

7:51 pm-9:29 pm

Nonstop1h 38m

New York John F Kennedy Intl

Wed 3/4

10:20 am-11:43 am

Nonstop1h 23m

$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

Mon 12/8

5:46 pm-7:19 pm

Nonstop1h 33m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Pennsylvania (average of $102). 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 13, 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 13, 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 13, 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
9,016 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

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
9,016 reviews
United Airlines
7.4
Good
9,016 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

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
6.4
Okay
27 reviews
United Airlines
7.4
Good
9,016 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

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 26m. United Airlines provides one of the quickest options available for as low as $137. The distance between Washington, D.C. Dulles Intl Airport and Pennsylvania is about 227 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), Frontier ($65), 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: 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 $124.

  • 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Pennsylvania (average of $102). 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.
Dulles Intl to Miami flights
Dulles Intl to Dallas/Fort Worth flights
Reagan-National to Miami flights
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Reagan-National to Orlando flights
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Dulles Intl to Los Angeles flights
Reagan-National to Los Angeles flights
Baltimore to Dallas/Fort Worth flights
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Dulles Intl to George Bush Intcntl flights
Baltimore to Denver flights
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Baltimore to Boston flights
Reagan-National to George Bush Intcntl flights
Baltimore to San Francisco flights
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Dulles Intl to New Orleans flights
Baltimore to Atlanta flights
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Reagan-National to Sky Harbor Intl flights
Reagan-National to Tampa flights
Baltimore to Tampa flights
Reagan-National to Denver flights
Dulles Intl to Austin flights
Reagan-National to Boston flights
Reagan-National to Salt Lake City 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 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$78Average$164FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$177Average$346FlexibilityNo cancel feeOn-time69%

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