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$244+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ABE
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$403
(American Airlines)

One-way from

$244
(American Airlines)
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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 7/258:06 pmIAD - ABE
1 stop4h 21mAmerican Airlines
Sat 7/268:03 pmABE - IAD
1 stop3h 55mAmerican Airlines
Deal found 6/11$403
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/233:13 pmIAD - ABE
2 stops22h 26mMultiple Airlines
Fri 6/2712:59 pmABE - IAD
2 stops31h 53mMultiple Airlines
Deal found 6/11$411
This United Airlines deal was found by Cheapflights users on 6/12. 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 6/271:20 pmIAD - ABE
1 stop8h 35mUnited Airlines
Tue 7/15:35 pmABE - IAD
1 stop6h 55mUnited Airlines
Deal found 6/12$1,294

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 June 12, 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

Fri 7/25

8:06 pm-12:27 am

1 stop4h 21m

Allentown-Bethlehem

Sat 7/26

8:03 pm-11:58 pm

1 stop3h 55m

$403

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 6/23

3:13 pm-1:39 pm

2 stops22h 26m

Allentown-Bethlehem

Fri 6/27

12:59 pm-8:52 pm

2 stops31h 53m

$411

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 6/27

1:20 pm-9:55 pm

1 stop8h 35m

Allentown-Bethlehem

Tue 7/1

5:35 pm-12:30 am

1 stop6h 55m

$1,294

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Tue 8/19

4:36 pm-9:44 pm

1 stop5h 08m

$244

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Tue 8/19

8:43 am-4:53 pm

2 stops8h 10m

$647

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 $292). 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.

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Allentown ranges from 2.7 - 5.0 inches per month. July is typically the wettest month, when rainfall can reach 5.0 in. February is typically the driest time to visit Allentown when rainfall is around 2.7 in.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 June 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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.

  • 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 $292). 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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