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Dulles Intl

$178+ Cheap flights from Allentown (ABE) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — IAD
Apr 29 — May 61
Wed 4/29
Wed 5/6
1 adult, Economy
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Cheap flight deals from Allentown to Dulles Intl

Cheapest flights from Allentown to Dulles Intl
Explore the most affordable flight options available from Allentown to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:34 am
ABE
-
IAD
1 stop9h 27m
Multiple Airlines
Wed 5/65:07 pm
IAD
-
ABE
1 stop21h 49m
Multiple Airlines
Deal found 3/25$191
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/271:41 pm
ABE
-
IAD
2 stops34h 55m
Multiple Airlines
Wed 5/65:07 pm
IAD
-
ABE
1 stop21h 49m
Multiple Airlines
Deal found 3/25$201
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:00 am
ABE
-
IAD
2 stops15h 36m
Multiple Airlines
Wed 5/65:07 pm
IAD
-
ABE
1 stop21h 49m
Multiple Airlines
Deal found 3/25$223
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:34 am
ABE
-
IAD
1 stop9h 27m
Multiple Airlines
Thu 4/307:27 pm
IAD
-
ABE
2 stops24h 43m
Multiple Airlines
Deal found 3/25$252
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:34 am
ABE
-
IAD
1 stop9h 27m
Multiple Airlines
Fri 5/16:00 am
IAD
-
ABE
2 stops14h 10m
Multiple Airlines
Deal found 3/25$267
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:34 am
ABE
-
IAD
1 stop9h 27m
Multiple Airlines
Mon 5/46:00 am
IAD
-
ABE
2 stops14h 10m
Multiple Airlines
Deal found 3/25$268
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:00 am
ABE
-
IAD
1 stop29h 11m
Multiple Airlines
Mon 5/46:00 am
IAD
-
ABE
2 stops14h 10m
Multiple Airlines
Deal found 3/25$277
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:34 am
ABE
-
IAD
1 stop9h 27m
Multiple Airlines
Sun 5/36:20 am
IAD
-
ABE
2 stops37h 50m
Multiple Airlines
Deal found 3/25$279
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:31 pm
ABE
-
IAD
1 stop18h 04m
Multiple Airlines
Sat 4/258:12 am
IAD
-
ABE
1 stop24h 20m
Multiple Airlines
Deal found 3/25$300
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:46 pm
ABE
-
IAD
1 stop6h 13m
American Airlines
Tue 7/78:22 pm
IAD
-
ABE
1 stop4h 01m
American Airlines
Deal found 3/27$303

Find flight deals from Allentown to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$191
(Kiwi.com)

One-way from

$178
(Kiwi.com)
Provider with most accurate pricing for Allentown-Bethlehem-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Allentown-Bethlehem-Washington, D.C. Dulles Intl flights.
Search Deals
From Allentown-Bethlehem to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Allentown-Bethlehem to Washington, D.C. Dulles Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated March 30, 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
Quickest round-trip

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Tue 6/30

5:46 pm-11:59 pm

1 stop6h 13m

Washington, D.C. Dulles Intl

Tue 7/7

8:22 pm-12:23 am

1 stop4h 01m

$303

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 4/9

9:00 am-12:10 pm

1 stop27h 10m

Washington, D.C. Dulles Intl

Mon 4/13

1:55 pm-11:27 am

2 stops21h 32m

$495

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sat 5/2

12:53 pm-12:27 am

1 stop11h 34m

Washington, D.C. Dulles Intl

Tue 5/5

7:06 am-11:00 pm

1 stop15h 54m

$589

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sat 4/25

12:00 pm-11:59 pm

1 stop11h 59m

Washington, D.C. Dulles Intl

Sat 5/2

9:19 am-12:22 am

1 stop15h 03m

$592

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Tue 9/1

5:36 pm-7:20 am

2 stops13h 44m

Washington, D.C. Dulles Intl

Sat 9/5

10:18 pm-10:06 am

2 stops11h 48m

$617

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Wed 4/29

5:43 pm-7:19 am

2 stops13h 36m

Washington, D.C. Dulles Intl

Wed 5/6

1:10 pm-9:48 am

1 stop20h 38m

$630
Cheapest one-way

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 4/10

1:41 pm-12:51 pm

2 stops23h 10m

$182
Quickest one-way

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Wed 5/6

6:04 am-10:56 am

1 stop4h 52m

$244

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Tue 5/5

12:57 pm-6:41 pm

1 stop5h 44m

$244

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Wed 4/15

10:00 am-12:36 am

3 stops38h 36m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from Allentown to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to Dulles Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Allentown-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Allentown-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Allentown-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Allentown-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Allentown-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Allentown to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Allentown with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Allentown to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Allentown to Washington, D.C. Dulles Intl Airport?

Currently, June is the cheapest month in which you can book a flight from Allentown to Washington, D.C. Dulles Intl Airport (average of $64). Flying from Allentown to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Allentown to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Allentown to Washington, D.C. Dulles Intl?

    Allentown-Bethlehem (ABE), located 3.9 mi from the city center, is the airport you fly out of when you book flights from Allentown to Washington, D.C. Dulles Intl. 0 airlines have flights from Allentown-Bethlehem to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Allentown-Bethlehem to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

  • How long is the flight from Allentown to Washington, D.C. Dulles Intl Airport?

    Airlines like American Airlines, Delta, and United Airlines fly from Allentown to Washington, D.C. Dulles Intl Airport in about 6h 13m. The time it takes to get you to your destination can typically vary by up to 7h 31m. There are 159 mi between Allentown and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.

  • Can I find deals for flights from Allentown to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Allentown to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Allentown to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Allentown to Dulles Intl.

  • Can I find deals for business class flights from Allentown to Dulles Intl?

    Yes. Cheapflights offers flight deals from Allentown to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Allentown to Washington, D.C. Dulles Intl Airport?

    Currently, June is the cheapest month in which you can book a flight from Allentown to Washington, D.C. Dulles Intl Airport (average of $64). Flying from Allentown to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
Cordova
Manassas

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