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Cheap flights from Allentown to Washington, D.C. from $122

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 10/2. 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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Cheap round-trip flights

American Airlines Logo
6:00 am - 10:07 amABE-IAD
4h 07m1 stop
American Airlines Logo
8:09 am - 2:13 pmIAD-ABE
6h 04m1 stop
$444American Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
Multiple Airlines Logo
10:16 am - 11:21 amABE-IAD
25h 05m3 stops
Multiple Airlines Logo
10:09 am - 9:23 pmIAD-ABE
11h 14m1 stop
$520Multiple Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 13
American Airlines Logo
6:00 am - 12:18 pmABE-IAD
6h 18m1 stop
American Airlines Logo
1:53 pm - 7:29 pmIAD-ABE
5h 36m1 stop
$539American Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
United Airlines Logo
1:00 pm - 9:25 pmABE-IAD
8h 25m2 stops
United Airlines Logo
10:10 pm - 4:53 pmIAD-ABE
18h 43m2 stops
$544United Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
American Airlines Logo
5:53 pm - 11:53 pmABE-IAD
6h 00m1 stop
American Airlines Logo
6:34 am - 1:26 pmIAD-ABE
6h 52m1 stop
$545American Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 13
United Airlines Logo
1:00 pm - 11:55 amABE-IAD
22h 55m1 stop
United Airlines Logo
10:10 pm - 4:53 pmIAD-ABE
18h 43m2 stops
$579United Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
Multiple Airlines Logo
12:14 pm - 11:44 amABE-IAD
23h 30m2 stops
Multiple Airlines Logo
10:09 am - 9:23 pmIAD-ABE
11h 14m1 stop
$592Multiple Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 13
United Airlines Logo
1:00 pm - 11:55 amABE-IAD
22h 55m2 stops
United Airlines Logo
10:15 pm - 10:38 amIAD-ABE
12h 23m2 stops
$593United Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
American Airlines Logo
7:31 am - 1:34 pmABE-IAD
6h 03m1 stop
American Airlines Logo
8:05 pm - 1:30 pmIAD-ABE
17h 25m1 stop
$608American Airlines
Find Deal
Fri, Dec 12 - Sat, Dec 13
United Airlines Logo
1:00 pm - 11:55 amABE-IAD
22h 55m2 stops
United Airlines Logo
6:50 pm - 10:38 amIAD-ABE
15h 48m1 stop
$639United Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5

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 3
ABE1:00 pmAllentown-Bethlehem
8h 25m
2 stops
IAD9:25 pmWashington, D.C. Dulles Intl
Oct 7
IAD10:10 pmWashington, D.C. Dulles Intl
18h 43m
2 stops
ABE4:53 pmAllentown-Bethlehem
$544
Find similar
United Airlines
Oct 3
ABE1:00 pmAllentown-Bethlehem
22h 55m
1 stop
IAD11:55 amWashington, D.C. Dulles Intl
Oct 7
IAD10:10 pmWashington, D.C. Dulles Intl
18h 43m
2 stops
ABE4:53 pmAllentown-Bethlehem
$579
Find similar
United Airlines
Oct 3
ABE1:00 pmAllentown-Bethlehem
22h 55m
2 stops
IAD11:55 amWashington, D.C. Dulles Intl
Oct 5
IAD10:15 pmWashington, D.C. Dulles Intl
12h 23m
2 stops
ABE10:38 amAllentown-Bethlehem
$593
Find similar

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
Oct 3
ABE6:00 amAllentown-Bethlehem
4h 07m
1 stop
IAD10:07 amWashington, D.C. Dulles Intl
Oct 7
IAD8:09 amWashington, D.C. Dulles Intl
6h 04m
1 stop
ABE2:13 pmAllentown-Bethlehem
$444
Find similar
American Airlines
Oct 3
ABE6:00 amAllentown-Bethlehem
6h 18m
1 stop
IAD12:18 pmWashington, D.C. Dulles Intl
Oct 5
IAD1:53 pmWashington, D.C. Dulles Intl
5h 36m
1 stop
ABE7:29 pmAllentown-Bethlehem
$539
Find similar
American Airlines
Oct 9
ABE5:53 pmAllentown-Bethlehem
6h 00m
1 stop
IAD11:53 pmWashington, D.C. Dulles Intl
Oct 13
IAD6:34 amWashington, D.C. Dulles Intl
6h 52m
1 stop
ABE1:26 pmAllentown-Bethlehem
$545
Find similar

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 September 18, 2025.
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

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 10/3

6:00 am-10:07 am

1 stop4h 07m

Washington, D.C. Dulles Intl

Tue 10/7

8:09 am-2:13 pm

1 stop6h 04m

$444

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 10/9

10:16 am-11:21 am

3 stops25h 05m

Washington, D.C. Dulles Intl

Mon 10/13

10:09 am-9:23 pm

1 stop11h 14m

$520

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 10/3

6:00 am-12:18 pm

1 stop6h 18m

Washington, D.C. Dulles Intl

Sun 10/5

1:53 pm-7:29 pm

1 stop5h 36m

$539

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 10/3

1:00 pm-9:25 pm

2 stops8h 25m

Washington, D.C. Dulles Intl

Tue 10/7

10:10 pm-4:53 pm

2 stops18h 43m

$544

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 10/9

5:53 pm-11:53 pm

1 stop6h 00m

Washington, D.C. Dulles Intl

Mon 10/13

6:34 am-1:26 pm

1 stop6h 52m

$545

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 10/3

1:00 pm-11:55 am

1 stop22h 55m

Washington, D.C. Dulles Intl

Tue 10/7

10:10 pm-4:53 pm

2 stops18h 43m

$579

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 10/9

12:14 pm-11:44 am

2 stops23h 30m

Washington, D.C. Dulles Intl

Mon 10/13

10:09 am-9:23 pm

1 stop11h 14m

$592

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 10/3

1:00 pm-11:55 am

2 stops22h 55m

Washington, D.C. Dulles Intl

Sun 10/5

10:15 pm-10:38 am

2 stops12h 23m

$593

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 12/12

7:31 am-1:34 pm

1 stop6h 03m

Washington, D.C. Dulles Intl

Sat 12/13

8:05 pm-1:30 pm

1 stop17h 25m

$608

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 10/3

1:00 pm-11:55 am

2 stops22h 55m

Washington, D.C. Dulles Intl

Sun 10/5

6:50 pm-10:38 am

1 stop15h 48m

$639

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

Flying to Washington, D.C. Dulles Intl Airport from Allentown in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $273 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $734 on average. Flights to Washington, D.C. Dulles Intl Airport from Allentown in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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.
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  • 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 4h 07m 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
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

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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