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$111+ Cheap flights from Dulles Intl (IAD) to Allentown (ABE)

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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ABE
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Allentown (ABE). 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 September 11, 2025.

Round-trip from

$235
(Kiwi.com)

One-way from

$111
(Trip.com)
From Washington, D.C. Dulles Intl to Allentown-Bethlehem
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One-way flight from Washington, D.C. Dulles Intl to Allentown-Bethlehem
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Find flight deals from Dulles Intl to Allentown

Cheapest flights from Dulles Intl to Allentown
Explore the most affordable flight options available from Dulles Intl to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/67:14 pmIAD - ABE
1 stop14h 12mMultiple Airlines
Thu 10/96:30 amABE - IAD
1 stop12h 37mMultiple Airlines
Deal found 9/11$235
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/67:14 pmIAD - ABE
1 stop14h 12mMultiple Airlines
Wed 10/89:14 pmABE - IAD
1 stop21h 53mMultiple Airlines
Deal found 9/11$248
This American Airlines deal was found by Cheapflights users on 9/9. 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 11/145:35 pmIAD - ABE
1 stop5h 17mAmerican Airlines
Sat 11/152:00 pmABE - IAD
1 stop5h 21mAmerican Airlines
Deal found 9/9$339
This American Airlines deal was found by Cheapflights users on 9/11. 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 9/2612:48 pmIAD - ABE
1 stop5h 42mAmerican Airlines
Tue 9/306:00 amABE - IAD
1 stop4h 07mAmerican Airlines
Deal found 9/11$444
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/119:19 amIAD - ABE
1 stop4h 07mAmerican Airlines
Sun 10/195:53 pmABE - IAD
1 stop6h 00mAmerican Airlines
Deal found 9/11$461
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/2610:10 pmIAD - ABE
2 stops12h 28mUnited Airlines
Tue 9/301:00 pmABE - IAD
1 stop11h 21mUnited Airlines
Deal found 9/11$496
This American Airlines deal was found by Cheapflights users on 9/11. 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 9/1211:18 amIAD - ABE
1 stop7h 12mAmerican Airlines
Mon 9/156:00 amABE - IAD
1 stop6h 18mAmerican Airlines
Deal found 9/11$499
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/61:09 pmIAD - ABE
1 stop4h 14mAmerican Airlines
Wed 10/82:43 pmABE - IAD
1 stop4h 11mAmerican Airlines
Deal found 9/11$507

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Allentown 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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Allentown that are best for you.

Fly from

Dulles Intl

Fly to

Allentown

Route

Depart

Return

Price

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 10/6

7:14 pm-9:26 am

1 stop14h 12m

Allentown-Bethlehem

Thu 10/9

6:30 am-7:07 pm

1 stop12h 37m

$235

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 10/6

7:14 pm-9:26 am

1 stop14h 12m

Allentown-Bethlehem

Wed 10/8

9:14 pm-7:07 pm

1 stop21h 53m

$248

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 11/14

5:35 pm-10:52 pm

1 stop5h 17m

Allentown-Bethlehem

Sat 11/15

2:00 pm-7:21 pm

1 stop5h 21m

$339

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 9/26

12:48 pm-6:30 pm

1 stop5h 42m

Allentown-Bethlehem

Tue 9/30

6:00 am-10:07 am

1 stop4h 07m

$444

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 9/26

10:10 pm-10:38 am

2 stops12h 28m

Allentown-Bethlehem

Tue 9/30

1:00 pm-12:21 am

1 stop11h 21m

$496

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 10/6

1:09 pm-5:23 pm

1 stop4h 14m

Allentown-Bethlehem

Wed 10/8

2:43 pm-6:54 pm

1 stop4h 11m

$507

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Thu 9/25

1:53 pm-7:29 pm

1 stop5h 36m

Allentown-Bethlehem

Mon 9/29

6:00 am-10:07 am

1 stop4h 07m

$539

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 11/14

10:35 pm-11:48 am

1 stop13h 13m

Allentown-Bethlehem

Sat 11/15

5:22 pm-7:35 am

2 stops14h 13m

$549

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 9/29

7:14 pm-10:55 am

1 stop15h 41m

$111

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 9/29

10:49 am-10:55 am

2 stops24h 06m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 14 results
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Best time to book a flight from Dulles Intl to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Allentown

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Allentown (average of $289). Flying from Washington, D.C. Dulles Intl Airport to Allentown in December is currently the most expensive (average of $382). 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 Dulles Intl to Allentown. 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 into for flights to Allentown from Washington, D.C. Dulles Intl?

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

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

    For as low as $339, American Airlines can have you in Allentown from Washington, D.C. Dulles Intl Airport in 5h 17m. There are 159 mi between Washington, D.C. Dulles Intl Airport and Allentown.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Allentown 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 Washington, D.C. Dulles Intl Airport to Allentown?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Allentown (average of $289). Flying from Washington, D.C. Dulles Intl Airport to Allentown in December is currently the most expensive (average of $382). 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

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