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Cheap flights from Philadelphia to Washington Dulles Intl (PHL - IAD)

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How to find the cheapest flight from
Philadelphia (PHL) to Washington Dulles Intl (IAD)

What is the cheapest day to fly round-trip from Philadelphia to Washington Dulles Intl?

Thursday flights are generally found to be more expensive for flights from Philadelphia to Washington Dulles Intl. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington Dulles Intl.

How far in advance should I book a flight from Philadelphia to Washington Dulles Intl?

Users have found that booking a flight from Philadelphia to Washington Dulles Intl at least 28 days early can save you up to 11% on average compared to booking a flight this week. If booking 28 days before your flight isn’t an option for you, users have found flights from Philadelphia to Washington Dulles Intl for as little as $252 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $276 for flights departing within the next 3 days.

What is the cheapest month to fly from Philadelphia to Washington Dulles Intl?

Flights from Philadelphia to Washington Dulles Intl lean towards being more expensive in December. Prices are generally better when you fly from Philadelphia to Washington Dulles Intl in February, with the cheapest ticket starting at $119.

When is the cheapest time to fly from Philadelphia to Washington Dulles Intl (PHL - IAD)?

One of the essential ways to save on airfare from Philadelphia to Washington Dulles Intl is to remain as flexible as possible. Flights that are in the noon tend to be the most expensive. If a flight is in the evening is possible it can save you up to 52% on airfare.

Cheap flights from Philadelphia to Washington Dulles Intl in August, September 2020

The best prices found for PHL to IAD flights for August, September
11 Aug - 14 Aug
$110pp
PHL
Philadelphia
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
American Airlines
 
1 STOP
PHL
Philadelphia
30 Jul - 3 Aug
$218pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
PHL
Philadelphia
14 Aug - 18 Aug
$234pp
PHL
Philadelphia
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
American Airlines
 
1 STOP
PHL
Philadelphia

Philadelphia to Washington Dulles Intl 2020 flight deals

Cheap flights to Washington Dulles Intl from Philadelphia found for this year
11 Aug - 14 Aug
$110pp
PHL
Philadelphia
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
American Airlines
 
1 STOP
PHL
Philadelphia
30 Jul - 3 Aug
$218pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
PHL
Philadelphia
14 Aug - 18 Aug
$234pp
PHL
Philadelphia
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
American Airlines
 
1 STOP
PHL
Philadelphia

Non-stop flights to Washington Dulles Intl from Philadelphia

Save time with Philadelphia to Washington Dulles Intl direct flight deals
25 Jul - 26 Jul
$2436pp
PHL
Philadelphia
Linear Air Taxi
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Linear Air Taxi
Non-Stop
PHL
Philadelphia

Last minute flights from Philadelphia to Washington Dulles Intl

Late deals on round-trip flights to Washington Dulles Intl from Philadelphia, departing today and this week
25 Jul - 26 Jul
$548pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
PHL
Philadelphia
25 Jul - 26 Jul
$2436pp
PHL
Philadelphia
Linear Air Taxi
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Linear Air Taxi
Non-Stop
PHL
Philadelphia

One-way flights to Washington Dulles Intl from Philadelphia

The cheapest one-way flights from Philadelphia to Washington Dulles Intl
4:46 am - 5:45 am
Linear Air Taxi
Nonstop
0h 59m
PHL - IAD
Linear Air Taxi
$2064
Travelgenio
3:30 am - 12:30 pm
Linear Air Taxi
2 Stops
9h 00m
PHL - IAD
Linear Air Taxi
$2068
Travelgenio
2:35 am - 7:40 pm
Multiple Airlines
3 Stops
17h 05m
PHL - IAD
Multiple Airlines
$379
Kiwi.com

Related info for your journey

Useful info, stats and facts about Philadelphia to Washington Dulles Intl flights.

Flight FAQs

From Philadelphia to Washington Dulles Intl

Are flight prices decreasing from Philadelphia to Washington Dulles Intl due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Philadelphia and Washington Dulles Intl for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Philadelphia to Washington Dulles Intl for under $200 on Cheapflights?

Yes, there are multiple flights from Philadelphia to Washington Dulles Intl for under $200. The cheapest flight booked recently is on Multiple Airlines for just $110, but on average you can expect to pay $187.

Are there nonstop flights from Philadelphia to Washington Dulles Intl for under $2500 on Cheapflights?

Cheapflights has at least 1 direct flight from Philadelphia to Washington Dulles Intl under $2500. A good price for a nonstop flight from Philadelphia to Washington Dulles Intl is less than $2436.

Are there last-minute flights available from Philadelphia to Washington Dulles Intl for under $600?

There are currently 2+ open flights from Philadelphia to Washington Dulles Intl within the next 7 days for less than $600.

Does it rain more in Philadelphia or Washington Dulles Intl?

Philadelphia will have the same amount of rainfall in 1 compared to Washington Dulles Intl over the next 13 days.

Is Philadelphia weather warmer or cooler than Washington Dulles Intl?

Our data indicates that the weather will be 88 °F on average in the month of July. The temperature in Washington Dulles Intl is typically the same as in Philadelphia. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

What are the cheapest airlines to fly from Philadelphia to Washington Dulles Intl one-way?

The cheapest airline for a one-way flight from Philadelphia to Washington Dulles Intl is Linear Air Taxi ($2064).

Destination information for Washington Dulles Intl

Things to know before you go. Useful info for your trip from Philadelphia to Washington Dulles Intl
Average temperature for August in Washington Dulles Intl
87.8 °F
Avg rainfall for August in Washington Dulles Intl
3.4 ″

Airports servicing Philadelphia

Airports servicing Washington

Hourly flight availability from Philadelphia to Washington Dulles Intl

Afternoon Noon to 6 PM 75% of PHL to IAD departures
Morning 6 AM to noon 25% of PHL to IAD departures
Early morning Midnight to 6 AM 0% of PHL to IAD departures
Evening 6 PM to midnight 0% of PHL to IAD departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Philadelphia to Washington Dulles Intl
Sunday
5 daily flights
Monday
5 daily flights
Tuesday
5 daily flights
Wednesday
5 daily flights
Thursday
5 daily flights
Friday
5 daily flights
Saturday
5 daily flights