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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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHL
Jul 26 — Aug 21
Sun 7/26
Sun 8/2
1 adult, Economy
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Cheap 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 June 26, 2026.

This United Airlines deal was found by Cheapflights users on 6/23. 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 7/2112:56 pm
IAD
-
PIT
Nonstop1h 07m
United Airlines
Tue 7/283:06 pm
PIT
-
IAD
Nonstop1h 06m
United Airlines
Deal found 6/23$117
This Trip.com deal was found by Cheapflights users on 6/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/298:25 am
IAD
-
PIT
1 stop5h 57m
Southern / Mokulele
Fri 7/310:55 am
PIT
-
IAD
1 stop5h 18m
Southern / Mokulele
Deal found 6/26$147
This Kissandfly.com deal was found by Cheapflights users on 6/26. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:25 am
IAD
-
PIT
1 stop5h 57m
Southern / Mokulele
Mon 8/1711:55 am
PIT
-
IAD
1 stop4h 18m
Southern / Mokulele
Deal found 6/26$148
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Tue 7/2112:40 pm
IAD
-
LGA
Nonstop1h 30m
United Airlines
Sat 7/256:00 am
LGA
-
IAD
Nonstop1h 26m
United Airlines
Deal found 6/21$149
This Trip.com deal was found by Cheapflights users on 6/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:25 am
IAD
-
PIT
1 stop5h 57m
Southern / Mokulele
Mon 7/2711:55 am
PIT
-
IAD
1 stop4h 18m
Southern / Mokulele
Deal found 6/22$151
This United Airlines deal was found by Cheapflights users on 6/22. 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 7/228:30 am
IAD
-
PIT
Nonstop1h 10m
United Airlines
Wed 7/223:06 pm
PIT
-
IAD
Nonstop1h 06m
United Airlines
Deal found 6/22$152
This Trip.com deal was found by Cheapflights users on 6/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:25 am
IAD
-
PIT
1 stop5h 57m
Southern / Mokulele
Wed 7/1511:55 am
PIT
-
IAD
1 stop4h 18m
Southern / Mokulele
Deal found 6/22$153
This Trip.com deal was found by Cheapflights users on 6/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2612:50 pm
IAD
-
PIT
1 stop4h 17m
Southern / Mokulele
Mon 6/2911:55 am
PIT
-
IAD
1 stop4h 18m
Southern / Mokulele
Deal found 6/23$154
This Kissandfly.com deal was found by Cheapflights users on 6/25. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/88:25 am
IAD
-
PIT
1 stop5h 57m
Southern / Mokulele
Mon 8/1011:55 am
PIT
-
IAD
1 stop4h 18m
Southern / Mokulele
Deal found 6/25$155
This Delta deal was found by Cheapflights users on 6/23. 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.
Wed 7/155:26 pm
IAD
-
PIT
1 stop6h 38m
Delta
Wed 7/227:20 am
PIT
-
IAD
1 stop4h 29m
Delta
Deal found 6/23$157
This Delta deal was found by Cheapflights users on 6/23. 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 8/1112:29 pm
IAD
-
JFK
Nonstop1h 26m
Delta
Wed 8/124:40 pm
JFK
-
IAD
Nonstop1h 53m
Delta
Deal found 6/23$157
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/2410:05 pm
IAD
-
LGA
Nonstop1h 25m
United Airlines
Sat 7/256:00 am
LGA
-
IAD
Nonstop1h 26m
United Airlines
Deal found 6/26$157

Find 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 June 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(United Airlines)

One-way from

$59
(United Airlines)

Popular in

March

Cheapest in

December

Average price

$339

Good round-trip deal

$112 or less

Good one-way deal

$69 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Philadelphia flights.
Search Deals
From Washington, D.C. Dulles Intl to Pennsylvania
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Pennsylvania
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Pennsylvania.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Pennsylvania.
Search Deals

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 June 26, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Tue 7/21

12:40 pm-2:10 pm

Nonstop1h 30m

New York LaGuardia

Wed 7/22

10:29 am-11:55 am

Nonstop1h 26m

$149

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Tue 8/11

7:19 pm-9:00 pm

Nonstop1h 41m

New York John F Kennedy Intl

Tue 8/18

4:40 pm-6:33 pm

Nonstop1h 53m

$157

Washington, D.C.New York

IAD - LGA

IADLGA

Washington, D.C. Dulles Intl

Fri 7/24

10:05 pm-11:30 pm

Nonstop1h 25m

New York LaGuardia

Sat 7/25

6:00 am-7:26 am

Nonstop1h 26m

$157

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Mon 7/27

6:59 pm-8:53 pm

Nonstop1h 54m

New York John F Kennedy Intl

Tue 7/28

4:29 pm-6:19 pm

Nonstop1h 50m

$161

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Sat 7/18

7:59 pm-9:48 pm

Nonstop1h 49m

New York John F Kennedy Intl

Mon 7/20

4:29 pm-6:19 pm

Nonstop1h 50m

$161

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Fri 7/17

6:59 pm-8:53 pm

Nonstop1h 54m

New York John F Kennedy Intl

Mon 7/20

4:29 pm-6:19 pm

Nonstop1h 50m

$165

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Fri 8/21

7:19 pm-9:00 pm

Nonstop1h 41m

New York John F Kennedy Intl

Sun 8/23

10:14 am-11:49 am

Nonstop1h 35m

$165

Washington, D.C.New York

IAD - JFK

IADJFK

Washington, D.C. Dulles Intl

Fri 7/24

12:29 pm-1:55 pm

Nonstop1h 26m

New York John F Kennedy Intl

Sun 7/26

10:14 am-11:49 am

Nonstop1h 35m

$165

Washington, D.C.Pittsburgh

IAD - PIT

IADPIT

Washington, D.C. Dulles Intl

Tue 7/14

12:50 pm-5:07 pm

1 stop4h 17m

Pittsburgh

Wed 7/15

11:55 am-4:13 pm

1 stop4h 18m

$169

Washington, D.C.Pittsburgh

IAD - PIT

IADPIT

Washington, D.C. Dulles Intl

Thu 7/23

8:25 am-2:22 pm

1 stop5h 57m

Pittsburgh

Sun 7/26

5:20 pm-7:18 am

1 stop13h 58m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $89). Flying from Washington, D.C. Dulles Intl Airport to Pennsylvania in January is currently the most expensive (average of $179). 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 June 26, 2026.

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 18% on the cost of your flight, compared to a flight in the afternoon.

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 June 26, 2026.

The most flights from IAD to USPA are scheduled on a Tuesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

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 June 20, 2026.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Pennsylvania flight should consider departing on Tuesday 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.

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 June 26, 2026.
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
9,897 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,897 reviews
United Airlines
7.4
Good
9,897 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Southern / Mokulele
6.5
Okay
27 reviews
United Airlines
7.4
Good
9,897 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 30m. United Airlines provides one of the quickest options available for as low as $149. 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 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: Mesa Airlines (88%), GoJet (85%), ANA (84%).

  • 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 $233. 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 $157.

  • 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 $89). Flying from Washington, D.C. Dulles Intl Airport to Pennsylvania in January is currently the most expensive (average of $179). 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 Seattle flights
Reagan-National to Seattle flights
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Reagan-National to Atlanta flights
Reagan-National to Fort Lauderdale flights
Dulles Intl to San Diego flights
Dulles Intl to Midway flights
Reagan-National to Nashville flights
Reagan-National to Tampa flights
Baltimore to Detroit flights
Reagan-National to Denver flights
Dulles Intl to George Bush Intcntl flights
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 June 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$78Average$137FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$175Average$353FlexibilityNo cancel feeOn-time69%

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