Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Allentown to Washington, D.C. from $309

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Washington, D.C. departing on 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:04 am - 10:49 am
ABE
-
DCA
4h 45m
1 stop
American Airlines Logo
7:46 pm - 12:22 am
DCA
-
ABE
4h 36m
1 stop
$473American Airlines
Fri, Apr 24 - Mon, Apr 27
American Airlines Logo
6:04 am - 10:49 am
ABE
-
DCA
4h 45m
1 stop
American Airlines Logo
7:46 pm - 12:22 am
DCA
-
ABE
4h 36m
1 stop
$512American Airlines
Thu, Apr 23 - Thu, Apr 23
American Airlines Logo
6:04 am - 10:57 am
ABE
-
DCA
4h 53m
1 stop
American Airlines Logo
6:45 am - 11:30 am
DCA
-
ABE
4h 45m
1 stop
$516American Airlines
Fri, Apr 3 - Sun, Apr 5
American Airlines Logo
12:00 pm - 4:47 pm
ABE
-
DCA
4h 47m
1 stop
American Airlines Logo
6:42 am - 11:27 am
DCA
-
ABE
4h 45m
1 stop
$577American Airlines
Fri, May 8 - Sun, May 10
American Airlines Logo
12:57 pm - 7:56 pm
ABE
-
DCA
6h 59m
1 stop
American Airlines Logo
5:45 pm - 11:28 pm
DCA
-
ABE
5h 43m
1 stop
$598American Airlines
Tue, Apr 7 - Tue, Apr 14
American Airlines Logo
6:04 am - 11:00 am
ABE
-
DCA
4h 56m
1 stop
American Airlines Logo
7:46 pm - 12:22 am
DCA
-
ABE
4h 36m
1 stop
$637American Airlines
Sun, Apr 5 - Thu, Apr 9
American Airlines Logo
6:04 am - 10:49 am
ABE
-
DCA
4h 45m
1 stop
American Airlines Logo
6:42 am - 11:27 am
DCA
-
ABE
4h 45m
1 stop
$642American Airlines
Sun, Apr 12 - Wed, Apr 15
United Airlines Logo
6:15 am - 10:49 pm
ABE
-
DCA
16h 34m
1 stop
United Airlines Logo
6:30 am - 9:17 pm
DCA
-
ABE
14h 47m
1 stop
$651United Airlines
Wed, Jun 10 - Sat, Jun 13
American Airlines Logo
6:04 am - 11:59 am
ABE
-
DCA
5h 55m
2 stops
American Airlines Logo
7:46 pm - 12:22 am
DCA
-
ABE
4h 36m
1 stop
$686American Airlines
Fri, Apr 24 - Mon, Apr 27
American Airlines Logo
6:04 am - 7:56 pm
ABE
-
DCA
13h 52m
1 stop
American Airlines Logo
9:51 am - 12:22 am
DCA
-
ABE
14h 31m
1 stop
$693American Airlines
Mon, Apr 20 - Mon, Apr 27

United Airlines flights from Allentown to Washington, D.C. Reagan-National Airport

Our best United Airlines deals on Allentown to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
Jun 10
ABE6:15 amAllentown-Bethlehem
16h 34m
1 stop
DCA10:49 pmWashington, D.C. Reagan-National
Jun 13
DCA6:30 amWashington, D.C. Reagan-National
14h 47m
1 stop
ABE9:17 pmAllentown-Bethlehem
$651
United Airlines
Apr 5
ABE6:15 amAllentown-Bethlehem
12h 58m
1 stop
DCA7:13 pmWashington, D.C. Reagan-National
Apr 9
DCA7:30 amWashington, D.C. Reagan-National
13h 47m
1 stop
ABE9:17 pmAllentown-Bethlehem
$1,519

American Airlines flights from Allentown to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Allentown to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Apr 24
ABE6:04 amAllentown-Bethlehem
4h 45m
1 stop
DCA10:49 amWashington, D.C. Reagan-National
Apr 27
DCA7:46 pmWashington, D.C. Reagan-National
4h 36m
1 stop
ABE12:22 amAllentown-Bethlehem
$473
American Airlines
Apr 3
ABE6:04 amAllentown-Bethlehem
4h 53m
1 stop
DCA10:57 amWashington, D.C. Reagan-National
Apr 5
DCA6:45 amWashington, D.C. Reagan-National
4h 45m
1 stop
ABE11:30 amAllentown-Bethlehem
$516
American Airlines
Apr 7
ABE12:57 pmAllentown-Bethlehem
6h 59m
1 stop
DCA7:56 pmWashington, D.C. Reagan-National
Apr 14
DCA5:45 pmWashington, D.C. Reagan-National
5h 43m
1 stop
ABE11:28 pmAllentown-Bethlehem
$598

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Allentown to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Fri 4/24

6:04 am-10:49 am

1 stop4h 45m

Washington, D.C. Reagan-National

Mon 4/27

7:46 pm-12:22 am

1 stop4h 36m

$473

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Thu 4/23

6:04 am-10:49 am

1 stop4h 45m

Washington, D.C. Reagan-National

Thu 4/23

7:46 pm-12:22 am

1 stop4h 36m

$512

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Fri 4/3

6:04 am-10:57 am

1 stop4h 53m

Washington, D.C. Reagan-National

Sun 4/5

6:45 am-11:30 am

1 stop4h 45m

$516

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Fri 5/8

12:00 pm-4:47 pm

1 stop4h 47m

Washington, D.C. Reagan-National

Sun 5/10

6:42 am-11:27 am

1 stop4h 45m

$577

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Tue 4/7

12:57 pm-7:56 pm

1 stop6h 59m

Washington, D.C. Reagan-National

Tue 4/14

5:45 pm-11:28 pm

1 stop5h 43m

$598

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Sun 4/5

6:04 am-11:00 am

1 stop4h 56m

Washington, D.C. Reagan-National

Thu 4/9

7:46 pm-12:22 am

1 stop4h 36m

$637

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Sun 4/12

6:04 am-10:49 am

1 stop4h 45m

Washington, D.C. Reagan-National

Wed 4/15

6:42 am-11:27 am

1 stop4h 45m

$642

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Wed 6/10

6:15 am-10:49 pm

1 stop16h 34m

Washington, D.C. Reagan-National

Sat 6/13

6:30 am-9:17 pm

1 stop14h 47m

$651

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Fri 4/24

6:04 am-11:59 am

2 stops5h 55m

Washington, D.C. Reagan-National

Mon 4/27

7:46 pm-12:22 am

1 stop4h 36m

$686

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Mon 4/20

6:04 am-7:56 pm

1 stop13h 52m

Washington, D.C. Reagan-National

Mon 4/27

9:51 am-12:22 am

1 stop14h 31m

$693

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Allentown to Washington, D.C. Reagan-National 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 cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Allentown to Washington, D.C. Reagan-National Airport is on a Friday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Friday will often find tickets for as low as $290. Flights from Allentown to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $359. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest Allentown to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the evening. Our users have found flights to Washington, D.C. Reagan-National Airport in the evening for as low as $296. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the afternoon when prices are around $330.

When to book flights from Allentown to Washington, D.C. Reagan-National Airport

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

Cheap Allentown to Washington, D.C. Reagan-National Airport (ABE to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to Washington, D.C. Reagan-National Airport

Fastest flight time

4h 53m

Direct flights

None
The fastest flight from Allentown to Washington, D.C. Reagan-National Airport takes 4h 53m
There are no direct flights from Allentown to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Allentown to Washington, D.C. Reagan-National Airport.
Search flight deals

  • How far is Allentown-Bethlehem to Washington, D.C. Reagan-National by plane?

    Washington, D.C. Reagan-National is 146.8 mi away from Allentown-Bethlehem. Flights usually cover this in 4h 53m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Allentown-Bethlehem Airport to Washington, D.C. Reagan-National Airport refresh daily.

  • How old do you have to be to fly from Allentown-Bethlehem Airport to Washington, D.C. Reagan-National Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Allentown-Bethlehem Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National 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. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Linthicum Heights
Springfield
Bethesda
Fairfax
College Park

Why use momondo?

Why should I use momondo to find a flight deal from Allentown 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 Allentown to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Allentown to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Allentown to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Allentown and alert you when they change.

An easier way to manage your Washington, D.C. Reagan-National Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 4/21
Tue 4/28
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.