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

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When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $363 or less.

FAQs for Booking Philadelphia to Washington Dulles Intl Flights

How long does a flight from Philadelphia to Washington Dulles Intl take?
An average nonstop flight takes 1h 00m, covering a distance of 135 miles.
How many flights are there between Philadelphia and Washington Dulles Intl?
There are 231 (nonstop) flights between Philadelphia and Washington Dulles Intl per week, averaging 34 per day.
Which airlines provide the cheapest flights from Philadelphia to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($169), Frontier ($178) and United ($481).
Do I need a passport to fly between Philadelphia and Washington Dulles Intl?
No.
Which airlines fly most frequently between Philadelphia and Washington Dulles Intl?
United (10 times daily), Avianca (6 times daily), Copa Airlines (5 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Philadelphia to Washington Dulles Intl?
For Philadelphia to Washington Dulles Intl, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Washington Dulles Intl back to Philadelphia, the best deals are generally found on Wednesday, with Thursday being the most expensive.

Book cheap flights from Philadelphia to Washington Dulles Intl (round-trip)

Airports
Origin
Philadelphia
$169
only
$169
Destination
Washington
$169
only
$169
Wed, Nov 29
PHL
IAD
28h 44m
Wed, Dec 6
IAD
PHL
10h 44m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 5
PHL
IAD
20h 04m
Thu, Feb 8
IAD
PHL
9h 14m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
FSD
DEN
Okay 4.6

The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late

PHL
MIA
Excellent 10.0

Same as all the other airlines in my opinion. Just way more afreoadable.

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

DEN
ORD
Excellent 10.0

On time. Very organized.

DEN
ORD
Okay 5.3

Low cost

They make you pay for everything. Even peanuts. No entertainment.

Fri, Dec 29
PHL
IAD
1h 00m
Tue, Jan 2
IAD
PHL
1h 01m
Trip: 5 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 33 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
PHL
IAD
Okay 4.0

Uncomfortably warm!!

PHL
IAD
Excellent 10.0

On time bags made connection

PHL
IAD
Excellent 8.0

Everything was on time and it was a good flight

PHL
IAD
Okay 4.3

Very rude crew.

PHL
IAD
Okay 4.3

I paid for my luggage in advance and when I arrived at Philly airport it was not acknowledged

Fri, Dec 22
PHL
IAD
1h 03m
Wed, Dec 27
IAD
PHL
1h 01m
Trip: 6 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 33 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
PHL
IAD
Excellent 8.0

Everything was on time and it was a good flight

PHL
IAD
Mediocre 2.0

Flight was disorganized because of maintenance issue

PHL
IAD
Excellent 10.0

The incoming plane was delayed due to 'equipment prep'. Since it was connecting me to my longer leg, I was nervous. The crew did a great job of deplaning everyone and getting the plane ready for our flight with very minimal delay.

It was a quick 30 minute flight and everything was fine.

PHL
IAD
Okay 4.3

I paid for my luggage in advance and when I arrived at Philly airport it was not acknowledged

PHL
IAD
Okay 4.3

Very rude crew.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.