For efficient check-in, verify your airline’s terminal before arriving at PHL. Terminals are spread out, and only some are linked by indoor walkways.
Round-trip from | $184 (United Airlines) |
---|---|
One-way from | $148 (Mytrip) |
Popular in | February |
Cheapest in | November |
Average price | $246 |
Good round-trip deal | $539 or less |
Good one-way deal | $334 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Wed 7/2
6:05 am-7:15 am
Nonstop1h 10m
Washington, D.C. Dulles Intl
Sun 7/27
10:05 pm-11:14 pm
Nonstop1h 09m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Sat 8/2
5:21 pm-11:08 am
2 stops17h 47m
Washington, D.C. Dulles Intl
Sat 8/9
9:20 pm-4:16 pm
2 stops18h 56m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Wed 7/2
3:35 pm-7:44 pm
1 stop4h 09m
Washington, D.C. Dulles Intl
Sun 7/27
6:35 am-10:37 am
1 stop4h 02m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Thu 7/10
8:16 am-12:49 pm
1 stop4h 33m
Washington, D.C. Dulles Intl
Sun 7/13
6:35 am-10:37 am
1 stop4h 02m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Mon 6/23
6:00 am-11:33 am
1 stop5h 33m
Washington, D.C. Dulles Intl
Mon 6/23
5:24 pm-11:10 pm
1 stop5h 46m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Wed 7/9
6:13 am-11:08 am
2 stops28h 55m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Mon 9/1
7:58 pm-9:05 pm
Nonstop1h 07m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Tue 7/8
6:08 am-12:36 pm
1 stop6h 28m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Sun 6/22
12:18 pm-12:19 pm
1 stop24h 01m
PhiladelphiaWashington, D.C.
PHL - IAD
PHLIAD
Philadelphia
Sat 7/12
4:02 pm-8:40 am
2 stops40h 38m
Currently, August is the cheapest month in which you can book a flight from Philadelphia to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Philadelphia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $347). 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.
One of the essential ways to save on airfare from Philadelphia to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 37% on airfare.
Travelers seeking maximum savings on their Philadelphia to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from PHL to IAD are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).
In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.
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).
Entertainment
Comfort
Food
Boarding
Crew
Overall
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Comfort
Food
Boarding
Crew
Overall
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Comfort
Food
Boarding
Crew
Overall
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Comfort
Food
Boarding
Crew
Overall
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Comfort
Food
Boarding
Crew
Overall
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Comfort
Food
Boarding
Crew
Overall
Reviews
James,Apr 2025
LAX - SFO
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$159 | Average$266 | FlexibilityNo cancel fee | On-time69% |