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Cheap flights from Philadelphia (PHL) to Dulles Intl (IAD) from $122

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 9/18. 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 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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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 2, 2024.

Popular in

January

Cheapest in

December

Round-trip from

$236

One-way from

$152
High demand for flights, 35% potential price rise
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Best time to find cheap flights, 80% potential price drop
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From Philadelphia to Washington, D.C. Dulles Intl
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One-way flight from Philadelphia to Washington, D.C. Dulles Intl
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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 Thursday can be a cost-effective option. It’s possible to save up to 52% 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 United Airlines flights from Philadelphia to Dulles Intl

Explore cheap flight options specifically provided by United Airlines for the route between Philadelphia and Dulles Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Check out some of the cheapest United Airlines flights we've come across from Philadelphia to Washington, D.C.. Make sure to check back often as deals are often changing.
Sat 6/296:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$159
Sat 6/296:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$219
Wed 6/263:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Wed 7/1010:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/1$229
Fri 7/58:00 amPHL - IAD
1 stop16h 30mUnited Airlines
Sun 7/710:05 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/1$317
Thu 8/86:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Wed 8/146:30 amIAD - PHL
1 stop17h 59mUnited Airlines
Deal found 6/1$347
Thu 7/112:37 pmPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/136:30 amIAD - PHL
1 stop15h 13mUnited Airlines
Deal found 5/31$357
Sat 6/296:24 amPHL - IAD
1 stop14h 36mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$364
Sun 6/233:59 pmPHL - IAD
1 stop4h 46mUnited Airlines
Sat 6/2910:05 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 5/31$385
Fri 8/26:24 amPHL - IAD
1 stop18h 06mUnited Airlines
Sun 8/410:05 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/1$388

Cheap American Airlines flights from Philadelphia to Dulles Intl

Explore cheap flight options specifically provided by American Airlines for the route between Philadelphia and Dulles Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Have a look at some of the cheapest available American Airlines flights departing from Philadelphia and landing in Washington, D.C.. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Thu 7/118:39 amPHL - IAD
1 stop4h 13mAmerican Airlines
Sat 7/139:18 amIAD - PHL
1 stop5h 30mAmerican Airlines
Deal found 5/31$335
Sat 6/2911:48 amPHL - IAD
1 stop5h 25mAmerican Airlines
Sat 7/69:18 amIAD - PHL
1 stop4h 14mAmerican Airlines
Deal found 6/1$338
Wed 6/268:36 amPHL - IAD
1 stop4h 07mAmerican Airlines
Wed 7/109:24 amIAD - PHL
1 stop4h 08mAmerican Airlines
Deal found 6/1$368
Fri 8/211:49 amPHL - IAD
1 stop5h 19mAmerican Airlines
Sun 8/45:38 pmIAD - PHL
1 stop7h 12mAmerican Airlines
Deal found 6/1$389
Sun 6/236:02 amPHL - IAD
1 stop6h 41mAmerican Airlines
Sat 6/295:43 pmIAD - PHL
1 stop7h 08mAmerican Airlines
Deal found 5/31$479
Thu 7/258:39 amPHL - IAD
1 stop4h 13mAmerican Airlines
Mon 7/299:24 amIAD - PHL
1 stop4h 08mAmerican Airlines
Deal found 6/1$482
Thu 7/114:05 pmPHL - IAD
2 stops7h 56mAmerican Airlines
Sat 7/138:10 pmIAD - PHL
1 stop4h 40mAmerican Airlines
Deal found 5/31$539
Fri 7/58:54 amPHL - IAD
2 stops8h 10mAmerican Airlines
Sun 7/75:00 amIAD - PHL
1 stop4h 27mAmerican Airlines
Deal found 6/1$661
Fri 8/24:35 pmPHL - IAD
2 stops7h 26mAmerican Airlines
Sun 8/49:24 amIAD - PHL
1 stop4h 08mAmerican Airlines
Deal found 6/1$665

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 2,810,401 searches. Prices were last updated on June 2, 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.
Sat 6/296:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$159
Sat 6/296:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$219
Wed 6/263:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Wed 7/1010:15 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/1$229
Sat 6/2911:48 amPHL - IAD
1 stop5h 25mAmerican Airlines
Sat 7/69:18 amIAD - PHL
1 stop4h 14mAmerican Airlines
Deal found 6/1$338
Sat 6/296:24 amPHL - IAD
1 stop14h 36mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$364
Wed 6/268:36 amPHL - IAD
1 stop4h 07mAmerican Airlines
Wed 7/109:24 amIAD - PHL
1 stop4h 08mAmerican Airlines
Deal found 6/1$368
Sat 6/16:40 pmPHL - IAD
1 stop5h 21mAmerican Airlines
Sun 6/23:27 pmIAD - PHL
1 stop6h 21mAmerican Airlines
Deal found 6/1$373
Sun 6/233:59 pmPHL - IAD
1 stop4h 46mUnited Airlines
Sat 6/2910:05 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 5/31$385
Sun 6/239:01 pmPHL - IAD
3 stops43h 09mMultiple Airlines
Sat 6/298:25 amIAD - PHL
3 stops24h 09mMultiple Airlines
Deal found 5/31$394

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 2,810,401 searches. Data last updated June 2, 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.
Sat 6/296:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$159
Sat 6/296:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$219
Wed 6/263:59 pmPHL - IAD
1 stop6h 30mUnited Airlines
Wed 7/312:45 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/1$229
Fri 7/58:00 amPHL - IAD
1 stop16h 30mUnited Airlines
Sun 7/710:05 pmIAD - PHL
Nonstop1h 07mUnited Airlines
Deal found 6/1$317
Thu 7/1112:00 pmPHL - IAD
3 stops28h 10mMultiple Airlines
Sat 7/138:25 amIAD - PHL
3 stops24h 09mMultiple Airlines
Deal found 5/31$326
Thu 7/118:39 amPHL - IAD
1 stop4h 13mAmerican Airlines
Sat 7/139:18 amIAD - PHL
1 stop5h 30mAmerican Airlines
Deal found 5/31$335
Sat 6/2911:48 amPHL - IAD
1 stop5h 25mAmerican Airlines
Sat 7/69:18 amIAD - PHL
1 stop4h 14mAmerican Airlines
Deal found 6/1$338
Thu 8/86:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Wed 8/146:30 amIAD - PHL
1 stop17h 59mUnited Airlines
Deal found 6/1$347
Thu 7/112:37 pmPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/136:30 amIAD - PHL
1 stop15h 13mUnited Airlines
Deal found 5/31$357

Non-stop flights to Dulles Intl from Philadelphia

Discover non-stop flight options from Philadelphia to Dulles Intl. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Consider booking one of these non-stop flights heading from Philadelphia to Washington, D.C.. Search for alternative flights from Philadelphia to Washington, D.C. by utilizing the search form above.
Sat 6/296:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$159
Sat 6/296:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Sat 7/66:31 pmIAD - PHL
Nonstop1h 15mUnited Airlines
Deal found 6/1$219

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 2,810,401 searches. Data last updated June 2, 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.
Wed 9/184:17 pmPHL - IAD
3 stops23h 53mMultiple Airlines
Deal found 6/1$122
Wed 7/311:13 amPHL - IAD
1 stop9h 53mSun Country Air
Deal found 6/1$152
Mon 8/129:34 amPHL - IAD
1 stop6h 55mDelta
Deal found 6/1$157
Mon 9/162:12 pmPHL - IAD
3 stops21h 08mMultiple Airlines
Deal found 6/1$158
Tue 7/26:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Deal found 6/1$195
Mon 7/18:36 amPHL - IAD
1 stop4h 07mAmerican Airlines
Deal found 6/1$204
Sun 6/166:17 amPHL - IAD
3 stops33h 53mMultiple Airlines
Deal found 6/1$210
Fri 7/58:00 amPHL - IAD
1 stop16h 30mUnited Airlines
Deal found 6/1$213
Mon 7/16:00 amPHL - IAD
Nonstop1h 09mUnited Airlines
Deal found 6/1$219

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 2,810,401 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$159 - $394

Route

Depart

Return

Price

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Sat 6/29

Nonstop1h 09m

Washington, D.C. Dulles Intl

Sat 7/6

Nonstop1h 15m

$159

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Sat 6/29

Nonstop1h 09m

Washington, D.C. Dulles Intl

Sat 7/6

Nonstop1h 15m

$219

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Wed 6/26

1 stop6h 30m

Washington, D.C. Dulles Intl

Wed 7/10

Nonstop1h 07m

$229

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Fri 7/5

1 stop16h 30m

Washington, D.C. Dulles Intl

Sun 7/7

Nonstop1h 07m

$317

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Thu 7/11

3 stops28h 10m

Washington, D.C. Dulles Intl

Sat 7/13

3 stops24h 09m

$326

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Thu 7/11

1 stop4h 13m

Washington, D.C. Dulles Intl

Sat 7/13

1 stop5h 30m

$335

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Sat 6/29

1 stop5h 25m

Washington, D.C. Dulles Intl

Sat 7/6

1 stop4h 14m

$338

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Fri 7/5

1 stop23h 57m

Washington, D.C. Dulles Intl

Sun 7/7

1 stop25h 20m

$377

PhiladelphiaWashington, D.C. Dulles Intl

PHL - IAD

PHLIAD

Philadelphia

Sun 6/23

3 stops43h 09m

Washington, D.C. Dulles Intl

Sat 6/29

3 stops24h 09m

$394

Flights are sorted by cheapest first

Deals found on 6/1

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 May 26, 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

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 2, 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.
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,410 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,755 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,260 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Sun Country Air
7.2
Good
592 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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 $356.

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

    Cheapflights has at least 2 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 $189.

  • 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. Additional round-trip tickets that might be worth considering are offered by American Airlines and Sun Country Air, with the lowest prices starting at $335 and $377, respectively. 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 $152. However, be on the lookout for offers from Delta and United 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 $142. On average you can expect to pay $1,800. 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 6/1.

  • 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 $388). 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

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Alternative routes for Philadelphia to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.

LaGuardia to Reagan-National flights
John F Kennedy Intl to Reagan-National flights
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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.
First Class
Business Class
Prem Econ Class
Economy 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 2, 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

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