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Cheap flights from Allentown to Washington, D.C. from $116

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 11/20. 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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American Airlines Logo
4:30 pm - 11:08 pmABE-IAD
6h 38m1 stop
American Airlines Logo
6:25 am - 1:30 pmIAD-ABE
7h 05m1 stop
$199American Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
Multiple Airlines Logo
8:30 am - 8:24 pmABE-IAD
11h 54m1 stop
Multiple Airlines Logo
5:26 pm - 1:08 pmIAD-ABE
19h 42m2 stops
$309Multiple Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
American Airlines Logo
4:30 pm - 11:07 pmABE-IAD
6h 37m1 stop
American Airlines Logo
4:34 pm - 10:51 pmIAD-ABE
6h 17m1 stop
$384American Airlines
Find Deal
Tue, Nov 18 - Sat, Nov 22
American Airlines Logo
7:31 am - 1:35 pmABE-IAD
6h 04m1 stop
American Airlines Logo
6:24 am - 1:29 pmIAD-ABE
7h 05m1 stop
$399American Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 15
Multiple Airlines Logo
7:00 am - 11:23 amABE-IAD
28h 23m3 stops
Multiple Airlines Logo
9:31 am - 8:17 pmIAD-ABE
10h 46m1 stop
$408Multiple Airlines
Find Deal
Mon, Dec 8 - Fri, Dec 12
American Airlines Logo
4:30 pm - 11:08 pmABE-IAD
6h 38m1 stop
American Airlines Logo
7:59 am - 1:18 pmIAD-ABE
5h 19m1 stop
$427American Airlines
Find Deal
Mon, Dec 8 - Fri, Dec 12
United Airlines Logo
6:15 am - 9:01 pmABE-IAD
14h 46m2 stops
United Airlines Logo
10:19 pm - 4:22 pmIAD-ABE
18h 03m2 stops
$455United Airlines
Find Deal
Sun, Feb 1 - Sat, Feb 7
United Airlines Logo
4:57 pm - 4:00 pmABE-IAD
23h 03m1 stop
United Airlines Logo
10:19 pm - 4:22 pmIAD-ABE
18h 03m2 stops
$525United Airlines
Find Deal
Sun, Feb 1 - Sat, Feb 7
United Airlines Logo
5:22 pm - 7:35 amABE-IAD
14h 13m2 stops
United Airlines Logo
10:07 pm - 11:52 amIAD-ABE
13h 45m2 stops
$540United Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
Multiple Airlines Logo
8:00 am - 6:01 pmABE-IAD
10h 01m2 stops
Multiple Airlines Logo
8:36 pm - 3:37 pmIAD-ABE
19h 01m1 stop
$569Multiple Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 15

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
Feb 1
ABE6:15 amAllentown-Bethlehem
14h 46m
2 stops
IAD9:01 pmWashington, D.C. Dulles Intl
Feb 7
IAD10:19 pmWashington, D.C. Dulles Intl
18h 03m
2 stops
ABE4:22 pmAllentown-Bethlehem
$455
Find similar
United Airlines
Feb 1
ABE4:57 pmAllentown-Bethlehem
23h 03m
1 stop
IAD4:00 pmWashington, D.C. Dulles Intl
Feb 7
IAD10:19 pmWashington, D.C. Dulles Intl
18h 03m
2 stops
ABE4:22 pmAllentown-Bethlehem
$525
Find similar
United Airlines
Dec 5
ABE5:22 pmAllentown-Bethlehem
14h 13m
2 stops
IAD7:35 amWashington, D.C. Dulles Intl
Dec 7
IAD10:07 pmWashington, D.C. Dulles Intl
13h 45m
2 stops
ABE11:52 amAllentown-Bethlehem
$540
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
Dec 5
ABE4:30 pmAllentown-Bethlehem
6h 38m
1 stop
IAD11:08 pmWashington, D.C. Dulles Intl
Dec 7
IAD6:25 amWashington, D.C. Dulles Intl
7h 05m
1 stop
ABE1:30 pmAllentown-Bethlehem
$199
Find similar
American Airlines
Nov 18
ABE4:30 pmAllentown-Bethlehem
6h 37m
1 stop
IAD11:07 pmWashington, D.C. Dulles Intl
Nov 22
IAD4:34 pmWashington, D.C. Dulles Intl
6h 17m
1 stop
ABE10:51 pmAllentown-Bethlehem
$384
Find similar
American Airlines
Nov 14
ABE7:31 amAllentown-Bethlehem
6h 04m
1 stop
IAD1:35 pmWashington, D.C. Dulles Intl
Nov 15
IAD6:24 amWashington, D.C. Dulles Intl
7h 05m
1 stop
ABE1:29 pmAllentown-Bethlehem
$399
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 November 4, 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 12/5

4:30 pm-11:08 pm

1 stop6h 38m

Washington, D.C. Dulles Intl

Sun 12/7

6:25 am-1:30 pm

1 stop7h 05m

$199

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 12/5

8:30 am-8:24 pm

1 stop11h 54m

Washington, D.C. Dulles Intl

Sun 12/7

5:26 pm-1:08 pm

2 stops19h 42m

$309

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Tue 11/18

4:30 pm-11:07 pm

1 stop6h 37m

Washington, D.C. Dulles Intl

Sat 11/22

4:34 pm-10:51 pm

1 stop6h 17m

$384

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 11/14

7:31 am-1:35 pm

1 stop6h 04m

Washington, D.C. Dulles Intl

Sat 11/15

6:24 am-1:29 pm

1 stop7h 05m

$399

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Mon 12/8

7:00 am-11:23 am

3 stops28h 23m

Washington, D.C. Dulles Intl

Fri 12/12

9:31 am-8:17 pm

1 stop10h 46m

$408

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Mon 12/8

4:30 pm-11:08 pm

1 stop6h 38m

Washington, D.C. Dulles Intl

Fri 12/12

7:59 am-1:18 pm

1 stop5h 19m

$427

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sun 2/1

6:15 am-9:01 pm

2 stops14h 46m

Washington, D.C. Dulles Intl

Sat 2/7

10:19 pm-4:22 pm

2 stops18h 03m

$455

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sun 2/1

4:57 pm-4:00 pm

1 stop23h 03m

Washington, D.C. Dulles Intl

Sat 2/7

10:19 pm-4:22 pm

2 stops18h 03m

$525

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 12/5

5:22 pm-7:35 am

2 stops14h 13m

Washington, D.C. Dulles Intl

Sun 12/7

10:07 pm-11:52 am

2 stops13h 45m

$540

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 11/14

8:00 am-6:01 pm

2 stops10h 01m

Washington, D.C. Dulles Intl

Sat 11/15

8:36 pm-3:37 pm

1 stop19h 01m

$569

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 6h 04m 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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Gaithersburg
Fairfax
Sterling

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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