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$209+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ABE
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$259
(American Airlines)

One-way from

$209
(Mytrip)
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 July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. 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.
Sun 8/246:34 amIAD - ABE
1 stop6h 52mAmerican Airlines
Sun 8/316:15 amABE - IAD
1 stop6h 33mAmerican Airlines
Deal found 7/27$259
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/711:58 amIAD - ABE
1 stop7h 29mMultiple Airlines
Mon 8/111:26 pmABE - IAD
3 stops22h 00mMultiple Airlines
Deal found 7/27$409
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:16 pmIAD - ABE
2 stops13h 32mUnited Airlines
Sat 11/155:22 pmABE - IAD
2 stops14h 05mUnited Airlines
Deal found 7/27$558
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3111:58 amIAD - ABE
1 stop7h 29mAllegiant Air
Sat 8/26:15 amABE - IAD
2 stops28h 53mAllegiant Air
Deal found 7/27$626

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 July 29, 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

Sun 8/24

6:34 am-1:26 pm

1 stop6h 52m

Allentown-Bethlehem

Sun 8/31

6:15 am-12:48 pm

1 stop6h 33m

$259

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Thu 8/7

11:58 am-7:27 pm

1 stop7h 29m

Allentown-Bethlehem

Mon 8/11

1:26 pm-11:26 am

3 stops22h 00m

$409

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Sun 8/24

8:20 am-4:53 pm

2 stops8h 33m

Allentown-Bethlehem

Sun 8/31

6:37 am-12:32 am

1 stop17h 55m

$1,136

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 8/15

3:13 pm-12:00 pm

2 stops20h 47m

$209

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Wed 9/10

2:21 pm-6:30 pm

1 stop4h 09m

$244

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Wed 9/10

8:38 am-4:53 pm

2 stops8h 15m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 $395). 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.

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated July 29, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Allentown, such as United Airlines, American Airlines, and Allegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,899 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,899 reviews
United Airlines
7.4
Good
8,899 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,899 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Allegiant Air
7.2
Good
703 reviews
United Airlines
7.4
Good
8,899 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Allentown one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Allentown are Allegiant Air ($209), American Airlines ($244), and United Airlines ($527).

  • 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 $395). 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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