What are the cheapest airlines flying from Allentown to Washington, D.C. Dulles Intl Airport round-trip?

Our cheapest airline available from Allentown to Washington, D.C. Dulles Intl Airport is American Airlines. Our recent data shows that you can find tickets from as low as $498 on this airline. An additional option worth looking into is United Airlines, starting at $1,183.

What is the cheapest day to fly from Allentown to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Allentown to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

Our data shows that October tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Allentown. Users have commonly found prices around $473 for the month, but tickets can be as low as $193. Due to multiple factors, prepare for potentially higher prices in July.

What is the cheapest time of day to fly from ABE to IAD?

It’s optimal to fly from Allentown to Washington, D.C. Dulles Intl Airport at noon. By choosing this option you can save up to 63% on the cost of your flight, compared to a flight in the morning.

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.

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.

$144+ Flights from Allentown to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Allentown to Dulles Intl

Round-trip from	$457 (Mytrip)
One-way from	$144 (Mytrip)
Popular in	July
Cheapest in	October
Average price	$479

From Allentown-Bethlehem to Washington, D.C. Dulles Intl

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One-way flight from Allentown-Bethlehem to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 53% potential increase in price ($535 potential increase over avg. RT price).

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Cheapest flight prices on average. 33% potential price decrease ($119 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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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 junio 12, 2025.

jue. 6/128:02 pmABE - IAD

1 stop3h 57mAmerican Airlines

sáb. 6/148:14 pmIAD - ABE

1 stop4h 06mAmerican Airlines

Deal found 6/10

$379

lun. 6/2312:59 pmABE - IAD

3 stops22h 27mMultiple Airlines

jue. 6/2611:52 amIAD - ABE

1 stop9h 01mMultiple Airlines

Deal found 6/11

$457

mié. 6/182:49 pmABE - IAD

1 stop17h 42mAllegiant Air

jue. 6/1911:52 amIAD - ABE

1 stop9h 01mAllegiant Air

Deal found 6/10

$640

vie. 8/16:30 amABE - IAD

1 stop14h 25mUnited Airlines

lun. 8/41:20 pmIAD - ABE

1 stop8h 37mUnited Airlines

Deal found 6/10

$1,183

Best flights from Allentown to Dulles Intl
Discover carefully curated flight deals from Allentown to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 12, 2025.

lun. 6/2312:59 pmABE - IAD

3 stops22h 27mMultiple Airlines

jue. 6/2611:52 amIAD - ABE

1 stop9h 01mMultiple Airlines

Deal found 6/11

$457

sáb. 6/286:15 amABE - IAD

1 stop6h 23mAmerican Airlines

mié. 7/28:14 pmIAD - ABE

1 stop4h 06mAmerican Airlines

Deal found 6/11

$498

vie. 8/16:30 amABE - IAD

1 stop14h 25mUnited Airlines

lun. 8/41:20 pmIAD - ABE

1 stop8h 37mUnited Airlines

Deal found 6/10

$1,183

Last-minute flights from Allentown to Dulles Intl
Discover last-minute flight deals from Allentown to Dulles Intl. Data last updated junio 12, 2025 and is based on user searches.

jue. 6/128:02 pmABE - IAD

1 stop3h 57mAmerican Airlines

sáb. 6/148:14 pmIAD - ABE

1 stop4h 06mAmerican Airlines

Deal found 6/10

$379

mié. 6/182:49 pmABE - IAD

1 stop17h 42mMultiple Airlines

jue. 6/195:40 pmIAD - ABE

3 stops29h 04mMultiple Airlines

Deal found 6/10

$533

mié. 6/182:49 pmABE - IAD

1 stop17h 42mAllegiant Air

jue. 6/1911:52 amIAD - ABE

1 stop9h 01mAllegiant Air

Deal found 6/10

$640

vie. 6/208:02 pmABE - IAD

1 stop3h 57mAmerican Airlines

dom. 6/225:45 pmIAD - ABE

1 stop6h 35mAmerican Airlines

Deal found 6/9

$429

lun. 6/2312:59 pmABE - IAD

3 stops22h 27mMultiple Airlines

jue. 6/2611:52 amIAD - ABE

1 stop9h 01mMultiple Airlines

Deal found 6/11

$457

lun. 6/235:35 pmABE - IAD

1 stop6h 55mUnited Airlines

jue. 6/2610:15 pmIAD - ABE

2 stops18h 45mUnited Airlines

Deal found 6/11

$1,781

One-way flights from Allentown to Dulles Intl
Search for one-way flight options from Allentown to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated junio 12, 2025.

jue. 8/218:30 amABE - IAD

2 stops30h 53mAllegiant Air

Deal found 6/11

$144

jue. 8/211:33 pmABE - IAD

3 stops21h 47mMultiple Airlines

Deal found 6/11

$198

jue. 8/218:07 pmABE - IAD

1 stop3h 52mAmerican Airlines

Deal found 6/11

$244

Cheapflights Fare Finder

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

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

lun. 6/23

12:59 pm-11:26 am

3 stops22h 27m

Washington, D.C. Dulles Intl

jue. 6/26

11:52 am-8:53 pm

1 stop9h 01m

$457

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

sáb. 6/28

6:15 am-12:38 pm

1 stop6h 23m

Washington, D.C. Dulles Intl

mié. 7/2

8:14 pm-12:20 am

1 stop4h 06m

$498

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

vie. 8/1

6:30 am-8:55 pm

1 stop14h 25m

Washington, D.C. Dulles Intl

lun. 8/4

1:20 pm-9:57 pm

1 stop8h 37m

$1,183

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

jue. 8/21

8:30 am-3:23 pm

2 stops30h 53m

$144

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

jue. 8/21

1:33 pm-11:20 am

3 stops21h 47m

$198

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

jue. 8/21

8:07 pm-11:59 pm

1 stop3h 52m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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, August is the cheapest month in which you can book a flight from Allentown to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Allentown to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

United Airlines

7.4

Good

8,790 reviews

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

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

7.3

Good

725 reviews

United Airlines

7.4

Good

8,790 reviews

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

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

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.
What are the cheapest airlines flying from Allentown to Washington, D.C. Dulles Intl Airport round-trip?
Our cheapest airline available from Allentown to Washington, D.C. Dulles Intl Airport is American Airlines. Our recent data shows that you can find tickets from as low as $498 on this airline. An additional option worth looking into is United Airlines, starting at $1,183.
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, August is the cheapest month in which you can book a flight from Allentown to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Allentown to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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.

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$144+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Allentown to Dulles Intl with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Allentown to Dulles Intl

Round-trip from

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Popular in

Cheapest in

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Find flight deals from Allentown to Dulles Intl

Cheapest flights from Allentown to Dulles IntlExplore 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 12, 2025.

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 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Allentown to Washington, D.C. Dulles Intl Airport that are best for you.

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.

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?

Rainfall in Dulles Intl by month

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

Temperature in Dulles Intl by month

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

Reviews of airlines servicing Dulles Intl

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?

What are the cheapest airlines flying from Allentown to Washington, D.C. Dulles Intl Airport round-trip?

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

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

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

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

Traveling to a place near Allentown?

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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 12, 2025.