HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$116+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — IAD
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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

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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$199
(American Airlines)

One-way from

$116
(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

Find 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 January 8, 2026.

This American Airlines deal was found by Cheapflights users on 1/6. 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.
Sat 1/311:02 pmABE - IAD
1 stop4h 14mAmerican Airlines
Sat 2/77:01 amIAD - ABE
1 stop5h 31mAmerican Airlines
Deal found 1/6$199
This American Airlines deal was found by Cheapflights users on 1/5. 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.
Wed 1/211:02 pmABE - IAD
1 stop4h 14mAmerican Airlines
Sun 1/255:46 pmIAD - ABE
1 stop4h 40mAmerican Airlines
Deal found 1/5$229
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Wed 1/71:02 pmABE - IAD
1 stop4h 14mAmerican Airlines
Tue 1/137:01 amIAD - ABE
1 stop5h 31mAmerican Airlines
Deal found 1/6$309
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/228:30 amABE - IAD
1 stop24h 10mMultiple Airlines
Mon 1/261:55 pmIAD - ABE
2 stops21h 32mMultiple Airlines
Deal found 1/7$345
This American Airlines deal was found by Cheapflights users on 1/7. 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.
Fri 1/161:02 pmABE - IAD
1 stop4h 14mAmerican Airlines
Sun 1/185:46 pmIAD - ABE
1 stop4h 40mAmerican Airlines
Deal found 1/7$449
This United Airlines deal was found by Cheapflights users on 1/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3111:30 amABE - IAD
2 stops19h 58mUnited Airlines
Sat 2/710:19 pmIAD - ABE
2 stops18h 03mUnited Airlines
Deal found 1/6$476
This Mytrip deal was found by Cheapflights users on 1/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/214:05 pmABE - IAD
2 stops24h 20mMultiple Airlines
Sun 1/255:40 pmIAD - ABE
3 stops28h 21mMultiple Airlines
Deal found 1/5$477
This United Airlines deal was found by Cheapflights users on 1/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/234:57 pmABE - IAD
2 stops18h 48mUnited Airlines
Tue 1/2710:19 pmIAD - ABE
2 stops18h 03mUnited Airlines
Deal found 1/6$496
This United Airlines deal was found by Cheapflights users on 1/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2111:30 amABE - IAD
2 stops20h 05mUnited Airlines
Sun 1/2510:19 pmIAD - ABE
2 stops18h 03mUnited Airlines
Deal found 1/5$516

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 January 8, 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

Allentown

Fly to

Dulles Intl

Route

Depart

Return

Price

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Wed 1/21

1:02 pm-5:16 pm

1 stop4h 14m

Washington, D.C. Dulles Intl

Sun 1/25

5:46 pm-10:26 pm

1 stop4h 40m

$229

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 1/22

8:30 am-8:40 am

1 stop24h 10m

Washington, D.C. Dulles Intl

Mon 1/26

1:55 pm-11:27 am

2 stops21h 32m

$345

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 1/16

1:02 pm-5:16 pm

1 stop4h 14m

Washington, D.C. Dulles Intl

Sun 1/18

5:46 pm-10:26 pm

1 stop4h 40m

$449

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sat 1/31

11:30 am-7:28 am

2 stops19h 58m

Washington, D.C. Dulles Intl

Sat 2/7

10:19 pm-4:22 pm

2 stops18h 03m

$476

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 1/23

4:57 pm-11:45 am

2 stops18h 48m

Washington, D.C. Dulles Intl

Tue 1/27

10:19 pm-4:22 pm

2 stops18h 03m

$496

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Wed 1/21

11:30 am-7:35 am

2 stops20h 05m

Washington, D.C. Dulles Intl

Sun 1/25

10:19 pm-4:22 pm

2 stops18h 03m

$516

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Wed 1/14

1:02 pm-5:16 pm

1 stop4h 14m

Washington, D.C. Dulles Intl

Thu 1/15

7:01 am-12:32 pm

1 stop5h 31m

$634

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sun 2/15

2:14 pm-7:20 am

1 stop17h 06m

$116

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 1/29

7:30 am-12:36 pm

1 stop5h 06m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

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 January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Allentown-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 May is currently the most expensive (average of $153). 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 and United Airlines fly from Allentown to Washington, D.C. Dulles Intl Airport in about 4h 14m. The time it takes to get you to your destination can typically vary by up to 15h 44m. 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 May is currently the most expensive (average of $153). 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
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Upper Marlboro

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.

Alternative routes for Allentown to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Reagan-National flights
John F Kennedy Intl to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
Newark to Dulles Intl flights
LaGuardia to Dulles Intl flights
Newark to Reagan-National flights
LaGuardia to Baltimore flights
John F Kennedy Intl to Baltimore flights
Newark to Baltimore flights
Pittsburgh to Dulles Intl flights
Pittsburgh to Baltimore flights
Pittsburgh to Reagan-National flights
Philadelphia to Dulles Intl flights
Philadelphia to Reagan-National flights
Scranton to Dulles Intl flights
Philadelphia to Baltimore flights
State College to Dulles Intl flights
Harrisburg to Dulles Intl flights
Harrisburg to Baltimore flights
Scranton to Reagan-National flights
Allentown to Baltimore flights
State College to Baltimore flights
Allentown to Reagan-National flights
Harrisburg to Reagan-National flights
Johnstown to Baltimore flights
Scranton to Baltimore flights
Elmira to Baltimore flights
State College to Reagan-National flights
Morgantown to Baltimore flights
Elmira to Reagan-National flights
Latrobe to Baltimore flights
Erie to Dulles Intl flights
Hagerstown to Baltimore flights
Erie to Baltimore flights
Erie to Reagan-National flights
Altoona to Baltimore flights

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.