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Cheap flights from Philadelphia to Washington, D.C. from $74

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:31 pm - 11:11 amPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
16h 40m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:06 pm - 9:07 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
9h 01m1 stop Atlanta Hartsfield-Jackson
$121Frontier
Tue, Dec 8 - Tue, Dec 15
Frontier Logo
6:31 pm - 11:11 amPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
16h 40m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
10:35 pm - 5:26 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
18h 51m1 stop Atlanta Hartsfield-Jackson
$134Frontier
Mon, Dec 7 - Mon, Dec 14
Frontier Logo
8:35 pm - 2:49 pmPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
18h 14m2 stops Tampa Atlanta Hartsfield-Jackson
Frontier Logo
12:06 pm - 9:07 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
9h 01m1 stop Atlanta Hartsfield-Jackson
$165Frontier
Tue, Dec 8 - Tue, Dec 15
Frontier Logo
8:40 am - 2:49 pmPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
6h 09m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:06 pm - 11:11 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
11h 05m1 stop Atlanta Hartsfield-Jackson
$175Frontier
Tue, Dec 8 - Wed, Dec 9
Frontier Logo
5:01 am - 2:49 pmPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
9h 48m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:06 pm - 6:32 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
6h 26m1 stop Atlanta Hartsfield-Jackson
$186Frontier
Tue, Dec 1 - Wed, Dec 2
Frontier Logo
6:15 am - 2:43 pmPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
8h 28m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:37 am - 12:16 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
5h 39m1 stop Atlanta Hartsfield-Jackson
$187Frontier
Mon, Jan 25 - Fri, Jan 29
Frontier Logo
9:56 pm - 2:49 pmPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
16h 53m2 stops Orlando Atlanta Hartsfield-Jackson
Frontier Logo
10:35 pm - 5:26 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
18h 51m1 stop Atlanta Hartsfield-Jackson
$193Frontier
Mon, Dec 7 - Mon, Dec 14
Frontier Logo
4:38 pm - 2:49 pmPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
22h 11m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
10:35 pm - 9:07 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
22h 32m1 stop Atlanta Hartsfield-Jackson
$204Frontier
Thu, Dec 3 - Sun, Dec 6
United Airlines Logo
6:00 am - 7:08 amPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
1h 08mnonstop
United Airlines Logo
8:30 am - 9:42 amIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
1h 12mnonstop
$319United Airlines
Mon, Dec 7 - Mon, Dec 14
United Airlines Logo
10:25 am - 11:33 amPHL  Philadelphia-IAD Washington, D.C. Dulles Intl
1h 08mnonstop
United Airlines Logo
5:50 pm - 7:02 pmIAD  Washington, D.C. Dulles Intl-PHL Philadelphia
1h 12mnonstop
$319United Airlines
Tue, Dec 8 - Tue, Dec 15

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Frontier flights from Philadelphia to Washington, D.C. Dulles Intl Airport

Our best Frontier deals on Philadelphia to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Dec 8
PHL6:31 pmPhiladelphia
16h 40m
1 stop
IAD11:11 amWashington, D.C. Dulles Intl
Dec 15
IAD12:06 pmWashington, D.C. Dulles Intl
9h 01m
1 stop
PHL9:07 pmPhiladelphia
$121
Frontier
Dec 7
PHL6:31 pmPhiladelphia
16h 40m
1 stop
IAD11:11 amWashington, D.C. Dulles Intl
Dec 14
IAD10:35 pmWashington, D.C. Dulles Intl
18h 51m
1 stop
PHL5:26 pmPhiladelphia
$134
Frontier
Dec 8
PHL8:35 pmPhiladelphia
18h 14m
2 stops
IAD2:49 pmWashington, D.C. Dulles Intl
Dec 15
IAD12:06 pmWashington, D.C. Dulles Intl
9h 01m
1 stop
PHL9:07 pmPhiladelphia
$165

United Airlines flights from Philadelphia to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Philadelphia to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Dec 6
PHL6:00 amPhiladelphia
1h 08m
IAD7:08 amWashington, D.C. Dulles Intl
Dec 13
IAD1:00 pmWashington, D.C. Dulles Intl
1h 12m
PHL2:12 pmPhiladelphia
$319
United Airlines
Nov 20
PHL6:00 amPhiladelphia
1h 13m
IAD7:13 amWashington, D.C. Dulles Intl
Nov 22
IAD10:17 pmWashington, D.C. Dulles Intl
1h 16m
PHL11:33 pmPhiladelphia
$349
United Airlines
Nov 12
PHL10:30 amPhiladelphia
1h 10m
IAD11:40 amWashington, D.C. Dulles Intl
Nov 19
IAD8:36 amWashington, D.C. Dulles Intl
1h 13m
PHL9:49 amPhiladelphia
$364

momondo Fare Finder

 
Use the filters below to find and compare flights from Philadelphia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Tue 12/8

6:31 pm-11:11 am

1 stop16h 40m

Washington, D.C. Dulles Intl

Tue 12/15

12:06 pm-9:07 pm

1 stop9h 01m

$121

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Mon 12/7

6:31 pm-11:11 am

1 stop16h 40m

Washington, D.C. Dulles Intl

Mon 12/14

10:35 pm-5:26 pm

1 stop18h 51m

$134

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Tue 12/8

8:35 pm-2:49 pm

2 stops18h 14m

Washington, D.C. Dulles Intl

Tue 12/15

12:06 pm-9:07 pm

1 stop9h 01m

$165

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Tue 12/8

8:40 am-2:49 pm

1 stop6h 09m

Washington, D.C. Dulles Intl

Wed 12/9

12:06 pm-11:11 pm

1 stop11h 05m

$175

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Tue 12/1

5:01 am-2:49 pm

1 stop9h 48m

Washington, D.C. Dulles Intl

Wed 12/2

12:06 pm-6:32 pm

1 stop6h 26m

$186

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Mon 1/25

6:15 am-2:43 pm

1 stop8h 28m

Washington, D.C. Dulles Intl

Fri 1/29

6:37 am-12:16 pm

1 stop5h 39m

$187

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Mon 12/7

9:56 pm-2:49 pm

2 stops16h 53m

Washington, D.C. Dulles Intl

Mon 12/14

10:35 pm-5:26 pm

1 stop18h 51m

$193

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Thu 12/3

4:38 pm-2:49 pm

1 stop22h 11m

Washington, D.C. Dulles Intl

Sun 12/6

10:35 pm-9:07 pm

1 stop22h 32m

$204
Quickest round-trip

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Mon 12/7

6:00 am-7:08 am

Nonstop1h 08m

Washington, D.C. Dulles Intl

Mon 12/14

8:30 am-9:42 am

Nonstop1h 12m

$319

PhiladelphiaWashington, D.C.

PHL Philadelphia - IAD Washington, D.C. Dulles Intl

PHLIAD

Philadelphia

Tue 12/8

10:25 am-11:33 am

Nonstop1h 08m

Washington, D.C. Dulles Intl

Tue 12/15

5:50 pm-7:02 pm

Nonstop1h 12m

$319

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Philadelphia to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Philadelphia and Washington, D.C. Dulles Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $339 to $409.
The lowest price recently found on this route was $121.

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

In general, October is the cheapest month to fly from Philadelphia to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of October, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $206.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Sunday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $773. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Washington, D.C. Dulles Intl Airport for around $1,125.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Philadelphia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $735 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,238 on average. Flights to Washington, D.C. Dulles Intl Airport from Philadelphia at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Philadelphia to Washington, D.C. Dulles Intl flight route?

Fly from Philadelphia to Washington, D.C. Dulles Intl for the best Philadelphia - Washington, D.C. Dulles Intl flight prices

What cabin class options are available on Philadelphia to Washington, D.C. Dulles Intl Airport flights?

There are 4 cabin classes available to choose from on Philadelphia to Washington, D.C. Dulles Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 52% on your flight if you consider stops on a Philadelphia to Washington, D.C. Dulles Intl Airport flight.

When to book flights from Philadelphia to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Washington, D.C. Dulles Intl Airport (PHL to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Washington, D.C. Dulles Intl Airport

Best Price Found

$74

Fastest flight time

1h 08m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Philadelphia in the past 72 hours is $74. The best round-trip flight deal from Philadelphia to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $121.
The fastest flight from Philadelphia to Washington, D.C. Dulles Intl Airport takes 1h 08m
Direct flights go from Philadelphia to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Philadelphia to Washington, D.C. Dulles Intl Airport

  • How far is Philadelphia to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Philadelphia to Washington, D.C. Dulles Intl is 140.7 mi. 1h 08m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Philadelphia Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Philadelphia Airport to Washington, D.C. Dulles Intl Airport refresh daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Philadelphia Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Philadelphia to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Philadelphia to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Philadelphia to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Philadelphia to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $206Free CancellationRating
7.3
10,471 reviews
Search United Airlines flights

  • United Airlines Flights From Philadelphia to Washington, D.C. Dulles Intl Airport

    United Airlines flies from Philadelphia to Washington, D.C. Dulles Intl Airport around 10 times per week, with 10,471 momondo users rating the airline 7.3/10. The cheapest United Airlines deal from Philadelphia to Washington, D.C. Dulles Intl Airport in the last 72 hours was $206 (round-trip), much lower than the average airfare cost of $489 for United Airlines flights on this route.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Fredericksburg
Winchester
Waldorf
Laurel
Gaithersburg
Woodbridge
Linthicum Heights
Rockville
Silver Spring
Sterling
Towson
Fairfax
Springfield
Glen Burnie
Edgewood
Chantilly

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Philadelphia to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Philadelphia with this policy.

How can momondo help me find flights from Philadelphia to Washington, D.C.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Philadelphia to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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