HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$187+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — IAD
jul. 29 — ago. 51
mié. 7/29
mié. 8/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Allentown to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 junio 29, 2026.

This American Airlines deal was found by Cheapflights users on 6/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/252:25 pm
ABE
-
IAD
1 stop4h 34m
American Airlines
sáb. 9/266:14 am
IAD
-
ABE
1 stop6h 11m
American Airlines
Deal found 6/25$259
This American Airlines deal was found by Cheapflights users on 6/24. 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.
jue. 7/97:09 pm
ABE
-
IAD
1 stop5h 01m
American Airlines
lun. 7/138:22 pm
IAD
-
ABE
1 stop4h 01m
American Airlines
Deal found 6/24$289
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
mié. 8/58:00 am
ABE
-
IAD
2 stops14h 52m
Multiple Airlines
dom. 8/95:40 pm
IAD
-
ABE
1 stop20h 24m
Multiple Airlines
Deal found 6/25$348
This American Airlines deal was found by Cheapflights users on 6/24. 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.
mié. 8/194:57 pm
ABE
-
IAD
1 stop5h 58m
American Airlines
dom. 8/236:25 pm
IAD
-
ABE
1 stop6h 05m
American Airlines
Deal found 6/24$407
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/126:00 am
ABE
-
IAD
2 stops32h 26m
Allegiant Air
jue. 7/166:25 pm
IAD
-
ABE
1 stop15h 16m
Allegiant Air
Deal found 6/27$436
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/710:00 am
ABE
-
IAD
1 stop24h 16m
Multiple Airlines
jue. 7/95:40 pm
IAD
-
ABE
1 stop29h 30m
Multiple Airlines
Deal found 6/27$440
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
lun. 7/134:38 pm
ABE
-
IAD
1 stop27h 00m
Multiple Airlines
jue. 7/166:25 pm
IAD
-
ABE
1 stop15h 16m
Multiple Airlines
Deal found 6/29$472
This American Airlines deal was found by Cheapflights users on 6/28. 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.
jue. 7/27:09 pm
ABE
-
IAD
1 stop5h 01m
American Airlines
dom. 7/58:22 pm
IAD
-
ABE
1 stop4h 01m
American Airlines
Deal found 6/28$494
This KAYAK deal was found by Cheapflights users on 6/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/137:10 pm
ABE
-
IAD
1 stop5h 00m
American Airlines
mar. 7/148:22 pm
IAD
-
ABE
1 stop4h 01m
American Airlines
Deal found 6/24$502
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
mar. 7/1412:00 pm
ABE
-
IAD
2 stops22h 16m
Multiple Airlines
sáb. 7/189:10 pm
IAD
-
ABE
1 stop20h 00m
Multiple Airlines
Deal found 6/29$510
This American Airlines deal was found by Cheapflights users on 6/24. 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.
lun. 9/74:57 pm
ABE
-
IAD
1 stop5h 58m
American Airlines
mié. 9/97:57 am
IAD
-
ABE
1 stop4h 28m
American Airlines
Deal found 6/24$522

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 junio 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$259
(American Airlines)
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

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 junio 29, 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

mié. 8/19

4:57 pm-10:55 pm

1 stop5h 58m

Washington, D.C. Dulles Intl

dom. 8/23

6:25 pm-12:30 am

1 stop6h 05m

$407

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

lun. 7/13

4:38 pm-7:38 pm

1 stop27h 00m

Washington, D.C. Dulles Intl

jue. 7/16

6:25 pm-9:41 am

1 stop15h 16m

$472
Quickest round-trip

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

lun. 7/13

7:10 pm-12:10 am

1 stop5h 00m

Washington, D.C. Dulles Intl

mar. 7/14

8:22 pm-12:23 am

1 stop4h 01m

$502

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

vie. 9/25

5:46 pm-11:49 am

2 stops18h 03m

Washington, D.C. Dulles Intl

sáb. 9/26

10:18 pm-9:35 am

1 stop11h 17m

$539

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

jue. 10/29

5:32 pm-11:37 am

2 stops18h 05m

Washington, D.C. Dulles Intl

dom. 11/1

12:40 pm-8:57 pm

2 stops8h 17m

$573

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

mié. 8/19

5:36 pm-11:42 am

2 stops18h 06m

Washington, D.C. Dulles Intl

dom. 8/23

10:20 pm-9:57 am

2 stops11h 37m

$585

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

mar. 8/18

5:36 pm-11:42 am

2 stops18h 06m

Washington, D.C. Dulles Intl

vie. 8/21

10:27 pm-9:57 am

1 stop11h 30m

$605
Cheapest one-way
Quickest one-way

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

lun. 8/3

7:35 am-7:38 pm

1 stop12h 03m

$187

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

lun. 7/6

4:38 pm-7:38 pm

1 stop27h 00m

$331

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

lun. 7/13

10:35 am-7:31 am

2 stops20h 56m

$631

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Sorted by cheapest first

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 June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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.

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 and United Airlines fly from Allentown to Washington, D.C. Dulles Intl Airport in about 5h 58m. The time it takes to get you to your destination can typically vary by up to 12h 05m. 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.

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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Falls Church
Fredericksburg
Hanover
Chantilly
Manassas
Silver Spring
Laurel
Clinton
Hunt Valley
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.