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Cheap flights from Allentown to Washington, D.C. from $136

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 10/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
5:46 pm - 12:13 am
ABE
-
IAD
6h 27m
1 stop
American Airlines Logo
8:22 pm - 12:21 am
IAD
-
ABE
3h 59m
1 stop
$259American Airlines
Wed, Jun 3 - Wed, Jun 10
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
Thu, Jul 23 - Sun, Jul 26
American Airlines Logo
5:46 pm - 12:13 am
ABE
-
IAD
6h 27m
1 stop
American Airlines Logo
8:22 pm - 12:21 am
IAD
-
ABE
3h 59m
1 stop
$289American Airlines
Sat, May 30 - Wed, Jun 3
Multiple Airlines Logo
8:49 pm - 4:11 pm
ABE
-
IAD
19h 22m
2 stops
Multiple Airlines Logo
9:10 pm - 5:10 pm
IAD
-
ABE
20h 00m
1 stop
$300Multiple Airlines
Mon, Jul 13 - Sat, Jul 18
American Airlines Logo
5:46 pm - 12:13 am
ABE
-
IAD
6h 27m
1 stop
American Airlines Logo
8:22 pm - 12:21 am
IAD
-
ABE
3h 59m
1 stop
$314American Airlines
Thu, Jun 11 - Thu, Jun 18
Multiple Airlines Logo
4:39 pm - 10:12 am
ABE
-
IAD
17h 33m
2 stops
Multiple Airlines Logo
6:20 pm - 9:40 am
IAD
-
ABE
15h 20m
1 stop
$332Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Multiple Airlines Logo
4:39 pm - 4:21 pm
ABE
-
IAD
23h 42m
2 stops
Multiple Airlines Logo
6:20 pm - 9:40 am
IAD
-
ABE
15h 20m
1 stop
$341Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Multiple Airlines Logo
4:38 pm - 7:58 pm
ABE
-
IAD
27h 20m
1 stop
Multiple Airlines Logo
9:10 pm - 5:10 pm
IAD
-
ABE
20h 00m
1 stop
$348Multiple Airlines
Mon, Jul 13 - Sat, Jul 18
Multiple Airlines Logo
4:39 pm - 7:50 pm
ABE
-
IAD
27h 11m
1 stop
Multiple Airlines Logo
6:20 pm - 9:40 am
IAD
-
ABE
15h 20m
1 stop
$355Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Multiple Airlines Logo
4:39 pm - 7:50 pm
ABE
-
IAD
27h 11m
1 stop
Multiple Airlines Logo
6:20 pm - 9:40 am
IAD
-
ABE
15h 20m
1 stop
$364Multiple Airlines
Fri, Jun 5 - Thu, Jun 11

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

Our best United Airlines deals on Allentown to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Oct 13
ABE5:36 pmAllentown-Bethlehem
18h 08m
2 stops
IAD11:44 amWashington, D.C. Dulles Intl
Oct 17
IAD12:35 pmWashington, D.C. Dulles Intl
8h 37m
2 stops
ABE9:12 pmAllentown-Bethlehem
$561
United Airlines
Oct 13
ABE5:36 pmAllentown-Bethlehem
13h 54m
2 stops
IAD7:30 amWashington, D.C. Dulles Intl
Oct 17
IAD12:35 pmWashington, D.C. Dulles Intl
8h 37m
2 stops
ABE9:12 pmAllentown-Bethlehem
$562
United Airlines
Oct 13
ABE5:36 pmAllentown-Bethlehem
13h 54m
2 stops
IAD7:30 amWashington, D.C. Dulles Intl
Oct 17
IAD12:35 pmWashington, D.C. Dulles Intl
8h 37m
2 stops
ABE9:12 pmAllentown-Bethlehem
$567

American Airlines flights from Allentown to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Allentown to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Jun 3
ABE5:46 pmAllentown-Bethlehem
6h 27m
1 stop
IAD12:13 amWashington, D.C. Dulles Intl
Jun 10
IAD8:22 pmWashington, D.C. Dulles Intl
3h 59m
1 stop
ABE12:21 amAllentown-Bethlehem
$259
American Airlines
Jul 23
ABE7:09 pmAllentown-Bethlehem
5h 01m
1 stop
IAD12:10 amWashington, D.C. Dulles Intl
Jul 26
IAD8:22 pmWashington, D.C. Dulles Intl
4h 01m
1 stop
ABE12:23 amAllentown-Bethlehem
$274
American Airlines
May 30
ABE5:46 pmAllentown-Bethlehem
6h 27m
1 stop
IAD12:13 amWashington, D.C. Dulles Intl
Jun 3
IAD8:22 pmWashington, D.C. Dulles Intl
3h 59m
1 stop
ABE12:21 amAllentown-Bethlehem
$289

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to Washington, D.C. Dulles Intl 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 May 15, 2026.
Use the filters below to find and compare flights from Allentown to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Wed 6/3

5:46 pm-12:13 am

1 stop6h 27m

Washington, D.C. Dulles Intl

Wed 6/10

8:22 pm-12:21 am

1 stop3h 59m

$259
Quickest round-trip

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 7/23

7:09 pm-12:10 am

1 stop5h 01m

Washington, D.C. Dulles Intl

Sun 7/26

8:22 pm-12:23 am

1 stop4h 01m

$274

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sat 5/30

5:46 pm-12:13 am

1 stop6h 27m

Washington, D.C. Dulles Intl

Wed 6/3

8:22 pm-12:21 am

1 stop3h 59m

$289

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Mon 7/13

8:49 pm-4:11 pm

2 stops19h 22m

Washington, D.C. Dulles Intl

Sat 7/18

9:10 pm-5:10 pm

1 stop20h 00m

$300

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 6/11

5:46 pm-12:13 am

1 stop6h 27m

Washington, D.C. Dulles Intl

Thu 6/18

8:22 pm-12:21 am

1 stop3h 59m

$314

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 6/5

4:39 pm-10:12 am

2 stops17h 33m

Washington, D.C. Dulles Intl

Thu 6/11

6:20 pm-9:40 am

1 stop15h 20m

$332

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 6/5

4:39 pm-4:21 pm

2 stops23h 42m

Washington, D.C. Dulles Intl

Thu 6/11

6:20 pm-9:40 am

1 stop15h 20m

$341

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Mon 7/13

4:38 pm-7:58 pm

1 stop27h 20m

Washington, D.C. Dulles Intl

Sat 7/18

9:10 pm-5:10 pm

1 stop20h 00m

$348

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 6/5

4:39 pm-7:50 pm

1 stop27h 11m

Washington, D.C. Dulles Intl

Thu 6/11

6:20 pm-9:40 am

1 stop15h 20m

$355

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 6/5

4:39 pm-7:50 pm

1 stop27h 11m

Washington, D.C. Dulles Intl

Thu 6/11

6:20 pm-9:40 am

1 stop15h 20m

$364

Flights are sorted by cheapest round-trip flights 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. 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 cheapest airline that flies from Allentown-Bethlehem to Washington, D.C. Dulles Intl?

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

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

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

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

Fastest flight time

6h 27m

Direct flights

None
The fastest flight from Allentown to Washington, D.C. Dulles Intl Airport takes 6h 27m
There are no direct flights from Allentown to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Allentown to Washington, D.C. Dulles Intl Airport.
Search flight deals

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

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

    There are 155.2 mi between Allentown-Bethlehem and Washington, D.C. Dulles Intl. Typically, this will take 6h 27m by plane in normal conditions.

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

    Prices for flights from Allentown-Bethlehem Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem 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 necessary travel and health documents for your Washington, D.C. Dulles Intl Airport 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
Winchester
Waldorf
Woodbridge
Laurel
Gaithersburg
Colonial Beach
Fredericksburg
Silver Spring
Towson
Rockville
Manassas
Sterling
Linthicum Heights
Tysons
Bethesda
Springfield

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. All flights to Washington, D.C. from Allentown on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Yes momondo offers price alerts on flights to Washington, D.C. from Allentown. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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