Cheap flights from Philadelphia (PHL) to Dulles Intl (IAD) from $127

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 7/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PHL — IAD
Jun 17 — Jun 241

Cheap flight deals from Philadelphia to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2024.

Popular in

January

Cheapest in

December

Average price

$616

Round-trip from

$234
High demand for flights, 35% potential price rise
Best time to find cheap flights, 80% potential price drop
Average for round-trip flights in June 2024
From Philadelphia to Washington, D.C. Dulles Intl

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

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 61% on your flight compared to booking on days when demand is much higher.

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

Flights from Philadelphia to Washington, D.C. Dulles Intl Airport lean towards being more expensive in February. Prices are generally better when you fly from Philadelphia to Washington, D.C. Dulles Intl Airport in October, with the cheapest ticket starting at $105.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Washington, D.C. Dulles Intl Airport as you normally would.

Cheap Philadelphia to Dulles Intl flights in June & July 2024

Find cheap flight options from Philadelphia to Dulles Intl specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Prices were last updated on June 12, 2024.
These are some of the best deals we've found on flights to Washington, D.C. in 2024 at this time. Check back regularly for other flight deals.
Tue 7/96:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Tue 7/1610:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$159
Tue 6/253:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Tue 7/210:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$174
Thu 7/112:37 pmPHL - IAD
Nonstop1h 09mUnited Airlines
Thu 7/1812:45 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$180
Thu 7/46:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sun 7/710:05 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$219
Mon 7/16:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Mon 7/812:45 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$224
Fri 6/286:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Mon 7/110:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$229
Wed 6/263:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Wed 7/1010:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$234
Sat 6/223:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Tue 6/258:35 amIAD - PHL
1 stop6h 20mUnited Airlines
Deal found 6/12$279
Wed 7/106:18 pmPHL - IAD
2 stops22h 02mMultiple Airlines
Wed 7/1712:55 pmIAD - PHL
3 stops20h 05mMultiple Airlines
Deal found 6/11$285

Philadelphia to Dulles Intl 2024 flight deals

Discover exclusive flight deals for travel between Philadelphia and Dulles Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
These are some of the best deals we've found on flights to Washington, D.C. in 2024 at this time. Check back regularly for other flight deals.
Fri 8/210:15 amPHL - IAD
Nonstop1h 08mUnited Airlines
Mon 8/510:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/12$159
Tue 6/253:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Tue 7/210:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$174
Thu 7/112:37 pmPHL - IAD
Nonstop1h 09mUnited Airlines
Thu 7/1812:45 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$180
Thu 9/126:20 amPHL - IAD
Nonstop1h 08mUnited Airlines
Sun 9/1512:40 pmIAD - PHL
Nonstop1h 05mUnited Airlines
Deal found 6/12$194
Thu 7/46:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sun 7/710:05 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$219
Mon 7/16:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Mon 7/812:45 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$224
Fri 6/286:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Mon 7/110:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$229
Wed 6/263:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Wed 7/1010:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/11$234
Sat 6/223:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Tue 6/258:35 amIAD - PHL
1 stop6h 20mUnited Airlines
Deal found 6/12$279

Philadelphia to Dulles Intl flights leaving soon

Find last-minute flight options from Philadelphia to Dulles Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
Have a look at some of the flights available from Philadelphia to Washington, D.C. departing last-minute. Users should examine the flight details to ensure there are no surprises.
Sat 6/223:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Tue 6/258:35 amIAD - PHL
1 stop6h 20mUnited Airlines
Deal found 6/12$279
Thu 6/203:33 pmPHL - IAD
1 stop4h 12mAmerican Airlines
Sun 6/235:00 amIAD - PHL
1 stop4h 33mAmerican Airlines
Deal found 6/12$368
Thu 6/203:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Sun 6/2310:23 pmIAD - PHL
2 stops16h 32mUnited Airlines
Deal found 6/12$386
Sat 6/2211:20 amPHL - IAD
1 stop9h 24mMultiple Airlines
Tue 6/255:35 pmIAD - PHL
3 stops15h 25mMultiple Airlines
Deal found 6/12$392
Mon 6/176:00 amPHL - IAD
1 stop5h 24mUnited Airlines
Mon 6/248:30 amIAD - PHL
1 stop6h 25mUnited Airlines
Deal found 6/11$411
Sat 6/223:59 pmPHL - IAD
2 stops15h 27mUnited Airlines
Tue 6/258:35 amIAD - PHL
1 stop6h 20mUnited Airlines
Deal found 6/12$416
Tue 6/183:59 pmPHL - IAD
2 stops15h 27mUnited Airlines
Wed 6/1910:23 pmIAD - PHL
2 stops16h 32mUnited Airlines
Deal found 6/12$563
Tue 6/183:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Wed 6/1910:23 pmIAD - PHL
2 stops16h 32mUnited Airlines
Deal found 6/12$646
Tue 6/1810:35 amPHL - IAD
1 stop6h 38mAmerican Airlines
Wed 6/195:00 amIAD - PHL
1 stop5h 34mAmerican Airlines
Deal found 6/12$753

One-way flights to Dulles Intl from Philadelphia

Search for one-way flight options from Philadelphia to Dulles Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
Users traveling one-way from Philadelphia to Washington, D.C. can select one of these great deals. For those needing a return trip from Philadelphia, there is a search form available above.
Fri 7/198:07 pmPHL - IAD
1 stop16h 03mSun Country Air
Deal found 6/11$127
Fri 8/912:21 pmPHL - IAD
1 stop23h 49mSun Country Air
Deal found 6/11$134
Sat 9/1411:05 amPHL - IAD
2 stops24h 35mMultiple Airlines
Deal found 6/11$142
Fri 6/2110:10 pmPHL - IAD
2 stops22h 34mMultiple Airlines
Deal found 6/11$149
Mon 8/127:49 pmPHL - IAD
3 stops35h 31mMultiple Airlines
Deal found 6/11$156
Sat 9/146:18 pmPHL - IAD
3 stops21h 52mMultiple Airlines
Deal found 6/11$173
Tue 8/136:36 pmPHL - IAD
1 stop17h 16mUnited Airlines
Deal found 6/11$185
Thu 9/266:18 pmPHL - IAD
3 stops17h 02mMultiple Airlines
Deal found 6/11$186
Wed 7/311:13 amPHL - IAD
1 stop9h 53mSun Country Air
Deal found 6/12$188

Find flights from Philadelphia to Dulles Intl within your budget

Customize your flight search to find flights from Philadelphia to Dulles Intl 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 3,117,830 searches. Data last updated June 12, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$159 - $288

Route

Depart

Return

Price

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Fri 8/2

Nonstop1h 08m

Washington, D.C. Dulles Intl

Mon 8/5

Nonstop1h 07m

$159

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Tue 6/25

1 stop6h 30m

Washington, D.C. Dulles Intl

Tue 7/2

Nonstop1h 07m

$174

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Thu 7/11

Nonstop1h 09m

Washington, D.C. Dulles Intl

Thu 7/18

Nonstop1h 07m

$180

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Thu 9/12

Nonstop1h 08m

Washington, D.C. Dulles Intl

Sun 9/15

Nonstop1h 05m

$194

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Thu 7/4

Nonstop1h 09m

Washington, D.C. Dulles Intl

Sun 7/7

Nonstop1h 07m

$219

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Mon 7/1

Nonstop1h 09m

Washington, D.C. Dulles Intl

Mon 7/8

Nonstop1h 07m

$224

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Wed 7/10

2 stops22h 02m

Washington, D.C. Dulles Intl

Wed 7/17

3 stops20h 05m

$285

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Wed 7/10

3 stops22h 58m

Washington, D.C. Dulles Intl

Wed 7/17

3 stops19h 39m

$286

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Sat 6/29

1 stop5h 20m

Washington, D.C. Dulles Intl

Sun 6/30

1 stop4h 21m

$288

Flights are sorted by cheapest first

Deals found on 6/12

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Dulles Intl. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Philadelphia to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday 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.
Search Deals

Best time to book a flight from Philadelphia to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Philadelphia 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.

Temperature and rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

35.6 - 80.6 °F

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated June 12, 2024.
Read reviews from past customers who have flown United Airlines and American Airlines from Philadelphia to Washington, D.C.. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,269 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

8.1
Very good
9,269 reviews
8.1
Very good
9,269 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

8.0
Very good
10,000 reviews
8.1
Very good
9,269 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

7.4
Good
10,000 reviews
8.1
Very good
9,269 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

7.3
Good
10,000 reviews
8.1
Very good
9,269 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

7.3
Good
581 reviews
8.1
Very good
9,269 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Dulles Intl. 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 from for flights from Philadelphia to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Philadelphia, you will be flying from Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia. There are 0 flights from Philadelphia to Washington, D.C. Dulles Intl per day from 0 different airlines.

  • Can I find flights from Philadelphia to Washington, D.C. Dulles Intl Airport for under $200 on Cheapflights?

    Yes, there are multiple flights from Philadelphia to Washington, D.C. Dulles Intl Airport for under $200. The cheapest flight booked recently is on United Airlines for just $159, but on average you can expect to pay $266.

  • Are there nonstop flights from Philadelphia to Washington, D.C. Dulles Intl Airport for under $200 on Cheapflights?

    Cheapflights has at least 10 direct flights from Philadelphia to Washington, D.C. Dulles Intl Airport under $200. A good price for a nonstop flight from Philadelphia to Washington, D.C. Dulles Intl Airport is less than $275.

  • Are there last-minute flights available from Philadelphia to Washington, D.C. Dulles Intl Airport for under $300?

    There are currently 9+ open flights from Philadelphia to Washington, D.C. Dulles Intl Airport within the next 7 days for less than $300.

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

    Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $159. Another option worth looking into is American Airlines, starting at $288 round trip. United Airlines is currently priced 67% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Philadelphia to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airline one-way is Sun Country Air, with whom users have recently found tickets for as low as $127. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Philadelphia to Washington, D.C. Dulles Intl Airport for a low price.

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

    The cheapest flight price from Philadelphia to Washington, D.C. Dulles Intl Airport is $131. On average you can expect to pay $784. The most popular route, (Philadelphia - Washington, D.C. Dulles Intl), can usually be booked for $219.

  • What does PHL to IAD mean?

    Great question - PHL to IAD just means Philadelphia Airport to Washington, D.C. Dulles Intl Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Philadelphia to Dulles Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Philadelphia to Dulles Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Philadelphia to Dulles Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Philadelphia to Dulles Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Philadelphia to Dulles Intl that allow pets onboard?

    Many airlines flying from Philadelphia to Dulles Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Philadelphia to Dulles Intl?

    Yes, you can often find last-minute deals on Philadelphia to Dulles Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Philadelphia to Washington, D.C. Dulles Intl Airport flight deals updated?

    The Philadelphia to Washington, D.C. Dulles Intl Airport flight deals you see on this page were last updated on 6/12.

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

    Currently, September is the cheapest month in which you can book a flight from Philadelphia to Washington, D.C. Dulles Intl Airport (average of $278). Flying from Philadelphia to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $382). 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

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.

Search flights from Philadelphia to Dulles Intl by cabin class

Find flights from Philadelphia to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Philadelphia to Dulles Intl

Find hourly flight availability from Philadelphia to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2024.
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.