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Cheap flights from Allentown to Washington, D.C. from $172

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 8/18. 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
1 adult, Economy, 0 bags

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
7:10 pm - 11:53 pm
ABE
-
DCA
4h 43m
1 stop
American Airlines Logo
5:50 pm - 12:23 am
DCA
-
ABE
6h 33m
1 stop
$259American Airlines
Sat, Jul 18 - Mon, Jul 20
American Airlines Logo
7:09 pm - 12:10 am
ABE
-
IAD
5h 01m
1 stop
American Airlines Logo
8:22 pm - 12:23 am
IAD
-
ABE
4h 01m
1 stop
$259American Airlines
Fri, Jul 10 - Tue, Jul 14
American Airlines Logo
5:46 pm - 9:59 pm
ABE
-
DCA
4h 13m
1 stop
American Airlines Logo
5:50 pm - 12:23 am
DCA
-
ABE
6h 33m
1 stop
$274American Airlines
Wed, Jul 1 - Tue, Jul 7
American Airlines Logo
7:09 pm - 12:10 am
ABE
-
IAD
5h 01m
1 stop
American Airlines Logo
8:22 pm - 12:23 am
IAD
-
ABE
4h 01m
1 stop
$274American Airlines
Fri, Jul 3 - Fri, Jul 10
American Airlines Logo
7:09 pm - 12:01 am
ABE
-
DCA
4h 52m
1 stop
American Airlines Logo
7:07 pm - 12:23 am
DCA
-
ABE
5h 16m
1 stop
$289American Airlines
Fri, Jul 3 - Mon, Jul 6
Multiple Airlines Logo
4:38 pm - 12:10 pm
ABE
-
BWI
19h 32m
1 stop
Multiple Airlines Logo
1:05 pm - 11:10 pm
BWI
-
ABE
10h 05m
1 stop
$304Multiple Airlines
Fri, Jul 10 - Mon, Jul 13
Multiple Airlines Logo
4:38 pm - 7:26 am
ABE
-
BWI
14h 48m
2 stops
Multiple Airlines Logo
1:05 pm - 11:10 pm
BWI
-
ABE
10h 05m
1 stop
$343Multiple Airlines
Fri, Jul 10 - Mon, Jul 13
Allegiant Air Logo
10:31 am - 2:02 pm
ABE
-
IAD
27h 31m
2 stops
Allegiant Air Logo
6:25 pm - 9:41 am
IAD
-
ABE
15h 16m
1 stop
$364Allegiant Air
Fri, Jul 10 - Thu, Jul 16
United Airlines Logo
10:35 am - 7:18 am
ABE
-
IAD
20h 43m
2 stops
United Airlines Logo
8:30 am - 9:07 pm
IAD
-
ABE
12h 37m
2 stops
$522United Airlines
Tue, Jul 14 - Tue, Jul 21
United Airlines Logo
10:35 am - 12:45 am
ABE
-
IAD
14h 10m
1 stop
United Airlines Logo
8:30 am - 9:07 pm
IAD
-
ABE
12h 37m
2 stops
$551United Airlines
Tue, Jul 14 - Tue, Jul 21

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American Airlines flights from Allentown to Washington, D.C.

Our best American Airlines deals on Allentown to Washington, D.C. flight tickets
American Airlines
Jul 10
ABE7:09 pmAllentown-Bethlehem
5h 01m
1 stop
IAD12:10 amWashington, D.C. Dulles Intl
Jul 14
IAD8:22 pmWashington, D.C. Dulles Intl
4h 01m
1 stop
ABE12:23 amAllentown-Bethlehem
$259
American Airlines
Jul 3
ABE7:09 pmAllentown-Bethlehem
5h 01m
1 stop
IAD12:10 amWashington, D.C. Dulles Intl
Jul 10
IAD8:22 pmWashington, D.C. Dulles Intl
4h 01m
1 stop
ABE12:23 amAllentown-Bethlehem
$274
American Airlines
Jul 3
ABE7:09 pmAllentown-Bethlehem
4h 52m
1 stop
DCA12:01 amWashington, D.C. Reagan-National
Jul 6
DCA7:07 pmWashington, D.C. Reagan-National
5h 16m
1 stop
ABE12:23 amAllentown-Bethlehem
$289

United Airlines flights from Allentown to Washington, D.C.

Our best United Airlines deals on Allentown to Washington, D.C. flight tickets
United Airlines
Jul 14
ABE10:35 amAllentown-Bethlehem
20h 43m
2 stops
IAD7:18 amWashington, D.C. Dulles Intl
Jul 21
IAD8:30 amWashington, D.C. Dulles Intl
12h 37m
2 stops
ABE9:07 pmAllentown-Bethlehem
$522
United Airlines
Jul 14
ABE10:35 amAllentown-Bethlehem
14h 10m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
Jul 21
IAD8:30 amWashington, D.C. Dulles Intl
12h 37m
2 stops
ABE9:07 pmAllentown-Bethlehem
$551
United Airlines
Sep 25
ABE5:46 pmAllentown-Bethlehem
17h 58m
2 stops
IAD11:44 amWashington, D.C. Dulles Intl
Sep 26
IAD10:18 pmWashington, D.C. Dulles Intl
11h 17m
1 stop
ABE9:35 amAllentown-Bethlehem
$573

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to Washington, D.C. 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 June 18, 2026.
Use the filters below to find and compare flights from Allentown to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Sat 7/18

7:10 pm-11:53 pm

1 stop4h 43m

Washington, D.C. Reagan-National

Mon 7/20

5:50 pm-12:23 am

1 stop6h 33m

$259
Quickest round-trip

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 7/10

7:09 pm-12:10 am

1 stop5h 01m

Washington, D.C. Dulles Intl

Tue 7/14

8:22 pm-12:23 am

1 stop4h 01m

$259

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Wed 7/1

5:46 pm-9:59 pm

1 stop4h 13m

Washington, D.C. Reagan-National

Tue 7/7

5:50 pm-12:23 am

1 stop6h 33m

$274

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 7/3

7:09 pm-12:10 am

1 stop5h 01m

Washington, D.C. Dulles Intl

Fri 7/10

8:22 pm-12:23 am

1 stop4h 01m

$274

AllentownWashington, D.C.

ABE - DCA

ABEDCA

Allentown-Bethlehem

Fri 7/3

7:09 pm-12:01 am

1 stop4h 52m

Washington, D.C. Reagan-National

Mon 7/6

7:07 pm-12:23 am

1 stop5h 16m

$289

AllentownBaltimore

ABE - BWI

ABEBWI

Allentown-Bethlehem

Fri 7/10

4:38 pm-12:10 pm

1 stop19h 32m

Baltimore/Washington

Mon 7/13

1:05 pm-11:10 pm

1 stop10h 05m

$304

AllentownBaltimore

ABE - BWI

ABEBWI

Allentown-Bethlehem

Fri 7/10

4:38 pm-7:26 am

2 stops14h 48m

Baltimore/Washington

Mon 7/13

1:05 pm-11:10 pm

1 stop10h 05m

$343

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 7/10

10:31 am-2:02 pm

2 stops27h 31m

Washington, D.C. Dulles Intl

Thu 7/16

6:25 pm-9:41 am

1 stop15h 16m

$364

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Tue 7/14

10:35 am-7:18 am

2 stops20h 43m

Washington, D.C. Dulles Intl

Tue 7/21

8:30 am-9:07 pm

2 stops12h 37m

$522

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Tue 7/14

10:35 am-12:45 am

1 stop14h 10m

Washington, D.C. Dulles Intl

Tue 7/21

8:30 am-9:07 pm

2 stops12h 37m

$551

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 Allentown to Washington, D.C.

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 airline that flies from Allentown-Bethlehem to Washington, D.C.?

American Airlines and United Airlines are the most popular carriers operating from Allentown-Bethlehem to Washington, D.C.

What airlines fly to Washington, D.C.?

United Airlines, American Airlines and Southern / Mokulele are the top three most popular airlines that fly to Washington, D.C. from Allentown according to our data. United Airlines is the first choice among our users, with 94% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 3 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

When to book flights from Allentown to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to Washington, D.C. 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. (ABE to WAS) flight deals and tips

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

Fastest flight time

6h 14m

Direct flights

None
The fastest flight from Allentown to Washington, D.C. takes 6h 14m
There are no direct flights from Allentown to Washington, D.C.. There are no popular flight routes from Allentown to Washington, D.C..
Search flight deals

Frequently asked questions about flying from Allentown to Washington, D.C.

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

    The distance between Allentown-Bethlehem and Washington, D.C. is about 143.6 mi. A reasonable flight in good conditions will take 6h 14m.

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

    Prices for flights from Allentown-Bethlehem Airport to Washington, D.C. were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Allentown-Bethlehem Airport to Washington, D.C..

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

    The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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
Fredericksburg
Gaithersburg
Colonial Beach
Rockville
Linthicum Heights
Silver Spring
Towson
Manassas
Tysons
Springfield
Bethesda
Fairfax
College Park

Why use momondo?

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

Finding the right flight to Washington, D.C. from Allentown is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Allentown.

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

Of course. momondo tracks the price of Allentown to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport