What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Philadelphia round-trip?

United Airlines, at $179, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Philadelphia. An alternate airline flying to your destination would be American Airlines. Users have found that United Airlines is 43% cheaper than the other options available to this destination.

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

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

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

The cheapest flight price from Washington, D.C. Dulles Intl Airport to Philadelphia is $119. On average you can expect to pay $340. The most popular route, (Washington, D.C. Dulles Intl - Philadelphia), can usually be booked for $179.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Philadelphia?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Philadelphia. Check prices with Cheapflights to find a great deal for your trip.

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

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, April can be a great choice for travel to Philadelphia. Flights to Philadelphia from Washington, D.C. Dulles Intl Airport in April are about $302 on average during April, but can be found for as low as $179.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Philadelphia flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Philadelphia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Philadelphia from Washington, D.C. Dulles Intl?

Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Philadelphia. 1 airline have flights to Philadelphia from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Philadelphia should not be difficult; the airport handles an average of 10 inbound flights from Washington, D.C. Dulles Intl per day.

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

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

How can I find direct flights from Dulles Intl to Philadelphia?

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

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

Yes. Cheapflights offers flight deals from Dulles Intl to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$179+ Flights from Washington, D.C. Dulles Intl Airport to Philadelphia

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Cheap flight deals from Dulles Intl to Philadelphia

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$179 (United Airlines)
Popular in	June
Cheapest in	February
Average price	$438
Good round-trip deal	$239 or less
Good one-way deal	$253 or less

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Philadelphia flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Philadelphia flights.

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From Washington, D.C. Dulles Intl to Philadelphia

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($54 potential increase over avg. RT price).

Search Deals

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 April 2025

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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Philadelphia.

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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Philadelphia.

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Find flight deals from Dulles Intl to Philadelphia

Cheapest flights from Dulles Intl to Philadelphia
Explore the most affordable flight options available from Dulles Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 25, 2025.

vie. 5/238:29 amIAD - PHL

Nonstop1h 10mUnited Airlines

vie. 5/306:15 amPHL - IAD

Nonstop1h 10mUnited Airlines

Deal found 4/24

$179

vie. 5/165:02 amIAD - PHL

1 stop3h 55mAmerican Airlines

sáb. 5/1711:50 amPHL - IAD

1 stop5h 06mAmerican Airlines

Deal found 4/24

$287

jue. 6/1211:52 amIAD - PHL

2 stops19h 56mMultiple Airlines

vie. 6/131:25 pmPHL - IAD

2 stops25h 07mMultiple Airlines

Deal found 4/24

$291

sáb. 4/266:05 pmIAD - PHL

1 stop4h 25mDelta

lun. 4/284:49 pmPHL - IAD

1 stop4h 34mDelta

Deal found 4/25

$1,401

Best flights from Dulles Intl to Philadelphia
Discover carefully curated flight deals from Dulles Intl to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 25, 2025.

vie. 5/238:29 amIAD - PHL

Nonstop1h 10mUnited Airlines

vie. 5/306:15 amPHL - IAD

Nonstop1h 10mUnited Airlines

Deal found 4/24

$179

vie. 5/165:02 amIAD - PHL

1 stop3h 55mAmerican Airlines

sáb. 5/1711:50 amPHL - IAD

1 stop5h 06mAmerican Airlines

Deal found 4/24

$287

jue. 6/1211:52 amIAD - PHL

2 stops19h 56mMultiple Airlines

vie. 6/131:25 pmPHL - IAD

2 stops25h 07mMultiple Airlines

Deal found 4/24

$291

Last-minute flights from Dulles Intl to Philadelphia
Discover last-minute flight deals from Dulles Intl to Philadelphia. Data last updated abril 25, 2025 and is based on user searches.

sáb. 4/266:05 pmIAD - PHL

1 stop4h 25mDelta

lun. 4/284:49 pmPHL - IAD

1 stop4h 34mDelta

Deal found 4/25

$1,401

mié. 4/3012:55 pmIAD - PHL

3 stops31h 02mMultiple Airlines

vie. 5/26:57 amPHL - IAD

2 stops14h 00mMultiple Airlines

Deal found 4/24

$478

vie. 5/25:45 pmIAD - PHL

Nonstop1h 14mUnited Airlines

dom. 5/46:15 amPHL - IAD

Nonstop1h 06mUnited Airlines

Deal found 4/25

$199

vie. 5/22:12 pmIAD - PHL

1 stop3h 41mAmerican Airlines

dom. 5/411:50 amPHL - IAD

1 stop4h 32mAmerican Airlines

Deal found 4/25

$471

vie. 5/165:02 amIAD - PHL

1 stop3h 55mAmerican Airlines

sáb. 5/1711:50 amPHL - IAD

1 stop5h 06mAmerican Airlines

Deal found 4/24

$287

jue. 5/2211:54 amIAD - PHL

1 stop27h 08mMultiple Airlines

jue. 5/297:12 pmPHL - IAD

2 stops25h 05mMultiple Airlines

Deal found 4/24

$300

vie. 5/238:29 amIAD - PHL

Nonstop1h 10mUnited Airlines

vie. 5/306:15 amPHL - IAD

Nonstop1h 10mUnited Airlines

Deal found 4/24

$179

One-way flights from Dulles Intl to Philadelphia
Search for one-way flight options from Dulles Intl to Philadelphia. Find affordable one-way fares based on user searches. Data last updated abril 25, 2025.

vie. 6/139:22 pmIAD - PHL

3 stops34h 26mMultiple Airlines

Deal found 4/23

$188

vie. 6/1310:15 pmIAD - PHL

Nonstop1h 14mUnited Airlines

Deal found 4/23

$204

lun. 5/265:02 amIAD - PHL

1 stop4h 46mAmerican Airlines

Deal found 4/24

$214

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

vie. 5/23

8:29 am-9:39 am

Nonstop1h 10m

Philadelphia

vie. 5/30

6:15 am-7:25 am

Nonstop1h 10m

$179

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

vie. 5/16

5:02 am-8:57 am

1 stop3h 55m

Philadelphia

sáb. 5/17

11:50 am-4:56 pm

1 stop5h 06m

$287

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

jue. 6/12

11:52 am-7:48 am

2 stops19h 56m

Philadelphia

vie. 6/13

1:25 pm-2:32 pm

2 stops25h 07m

$291

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

vie. 6/13

9:22 pm-7:48 am

3 stops34h 26m

$188

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

vie. 6/13

10:15 pm-11:29 pm

Nonstop1h 14m

$204

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

lun. 5/26

5:02 am-9:48 am

1 stop4h 46m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Compare providers for flights from Dulles Intl to Philadelphia

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Philadelphia in April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Philadelphia flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Philadelphia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia 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 Philadelphia

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Philadelphia (average of $236). Flying from Washington, D.C. Dulles Intl Airport to Philadelphia 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 PHL?

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Philadelphia is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 50% on airfare.

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

The most flights from IAD to PHL are scheduled on a Monday (11 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Philadelphia by month

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

Peruse reviews from past customers who have flown with United Airlines and American Airlines from Washington, D.C. to Philadelphia to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,685 reviews

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

8,685 reviews

United Airlines

7.4

Good

8,685 reviews

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!

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,685 reviews

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

What airport do you fly into for flights to Philadelphia from Washington, D.C. Dulles Intl?
Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Philadelphia. 1 airline have flights to Philadelphia from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Philadelphia should not be difficult; the airport handles an average of 10 inbound flights from Washington, D.C. Dulles Intl per day.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Philadelphia round-trip?
United Airlines, at $179, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Philadelphia. An alternate airline flying to your destination would be American Airlines. Users have found that United Airlines is 43% cheaper than the other options available to this destination.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Philadelphia?
The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Philadelphia are ANA (76%), Copa Airlines (75%) and GoJet (73%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Philadelphia?
The cheapest flight price from Washington, D.C. Dulles Intl Airport to Philadelphia is $119. On average you can expect to pay $340. The most popular route, (Washington, D.C. Dulles Intl - Philadelphia), can usually be booked for $179.
Can I find deals for flights from Dulles Intl to Philadelphia that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Philadelphia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Philadelphia.
Can I find deals for business class flights from Dulles Intl to Philadelphia?
Yes. Cheapflights offers flight deals from Dulles Intl to Philadelphia 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 Philadelphia?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Philadelphia (average of $236). Flying from Washington, D.C. Dulles Intl Airport to Philadelphia 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.

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Top airline flying from Dulles Intl to Philadelphia

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$179	Average$304	FlexibilityNo cancel fee	On-time69%

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$179+ Cheap flights from Dulles Intl (IAD) to Philadelphia (PHL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Philadelphia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Philadelphia

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Dulles Intl to Philadelphia

Cheapest flights from Dulles Intl to PhiladelphiaExplore the most affordable flight options available from Dulles Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 25, 2025.

Explore the most affordable flight options available from Dulles Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Philadelphia that are best for you.

Compare providers for flights from Dulles Intl to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Philadelphia in April.

Best time to book a flight from Dulles Intl to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Dulles Intl with our price prediction graph.

Cheapflights Insights

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

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

What is the cheapest time of day to fly from IAD to PHL?

Find hourly flight availability from Dulles Intl to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 25, 2025.

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

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

Reviews of airlines servicing Philadelphia

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Philadelphia from Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Philadelphia round-trip?

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

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

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

How can I find direct flights from Dulles Intl to Philadelphia?

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Dulles Intl to Philadelphia

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Cheapest flights from Dulles Intl to Philadelphia
Explore the most affordable flight options available from Dulles Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 25, 2025.