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Cheap flights from Washington, D.C. Dulles Intl Airport to Allentown from $178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Allentown departing on 12/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Allentown

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:35 pm - 10:52 pmIAD-ABE
5h 17m1 stop
American Airlines Logo
2:00 pm - 7:21 pmABE-IAD
5h 21m1 stop
$259American Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 15
Multiple Airlines Logo
10:33 pm - 9:26 amIAD-ABE
10h 53m1 stop
Multiple Airlines Logo
6:00 am - 12:11 amABE-IAD
18h 11m2 stops
$283Multiple Airlines
Find Deal
Mon, Oct 27 - Mon, Nov 3
Multiple Airlines Logo
10:33 pm - 9:26 amIAD-ABE
10h 53m1 stop
Multiple Airlines Logo
8:00 am - 7:51 pmABE-IAD
11h 51m1 stop
$310Multiple Airlines
Find Deal
Mon, Oct 27 - Mon, Nov 3
American Airlines Logo
2:18 pm - 7:40 pmIAD-ABE
5h 22m1 stop
American Airlines Logo
4:30 pm - 11:07 pmABE-IAD
6h 37m1 stop
$312American Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4
Allegiant Air Logo
11:14 am - 9:41 pmIAD-ABE
10h 27m1 stop
Allegiant Air Logo
6:00 am - 8:26 pmABE-IAD
14h 26m2 stops
$452Allegiant Air
Find Deal
Mon, Nov 10 - Fri, Nov 14
American Airlines Logo
5:29 pm - 10:52 pmIAD-ABE
5h 23m1 stop
American Airlines Logo
4:30 pm - 11:07 pmABE-IAD
6h 37m1 stop
$457American Airlines
Find Deal
Mon, Nov 10 - Fri, Nov 14
United Airlines Logo
10:30 pm - 11:48 amIAD-ABE
13h 18m2 stops
United Airlines Logo
5:22 pm - 7:27 amABE-IAD
14h 05m2 stops
$513United Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 15
United Airlines Logo
10:30 pm - 4:47 pmIAD-ABE
18h 17m2 stops
United Airlines Logo
5:22 pm - 7:26 amABE-IAD
14h 04m2 stops
$514United Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4
Multiple Airlines Logo
12:09 pm - 9:29 pmIAD-ABE
9h 20m1 stop
Multiple Airlines Logo
6:00 am - 11:23 amABE-IAD
29h 23m3 stops
$534Multiple Airlines
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Mon, Oct 27 - Mon, Nov 3
United Airlines Logo
6:30 am - 9:41 pmIAD-ABE
15h 11m1 stop
United Airlines Logo
5:22 pm - 11:38 amABE-IAD
18h 16m2 stops
$542United Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4

American Airlines flights from Washington, D.C. Dulles Intl Airport to Allentown

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Allentown flight tickets
American Airlines
Nov 14
IAD5:35 pmWashington, D.C. Dulles Intl
5h 17m
1 stop
ABE10:52 pmAllentown-Bethlehem
Nov 15
ABE2:00 pmAllentown-Bethlehem
5h 21m
1 stop
IAD7:21 pmWashington, D.C. Dulles Intl
$259
Find similar
American Airlines
Oct 31
IAD2:18 pmWashington, D.C. Dulles Intl
5h 22m
1 stop
ABE7:40 pmAllentown-Bethlehem
Nov 4
ABE4:30 pmAllentown-Bethlehem
6h 37m
1 stop
IAD11:07 pmWashington, D.C. Dulles Intl
$312
Find similar
American Airlines
Nov 10
IAD5:29 pmWashington, D.C. Dulles Intl
5h 23m
1 stop
ABE10:52 pmAllentown-Bethlehem
Nov 14
ABE4:30 pmAllentown-Bethlehem
6h 37m
1 stop
IAD11:07 pmWashington, D.C. Dulles Intl
$457
Find similar

United Airlines flights from Washington, D.C. Dulles Intl Airport to Allentown

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Allentown flight tickets
United Airlines
Nov 14
IAD10:30 pmWashington, D.C. Dulles Intl
13h 18m
2 stops
ABE11:48 amAllentown-Bethlehem
Nov 15
ABE5:22 pmAllentown-Bethlehem
14h 05m
2 stops
IAD7:27 amWashington, D.C. Dulles Intl
$513
Find similar
United Airlines
Oct 31
IAD10:30 pmWashington, D.C. Dulles Intl
18h 17m
2 stops
ABE4:47 pmAllentown-Bethlehem
Nov 4
ABE5:22 pmAllentown-Bethlehem
14h 04m
2 stops
IAD7:26 amWashington, D.C. Dulles Intl
$514
Find similar
United Airlines
Oct 31
IAD6:30 amWashington, D.C. Dulles Intl
15h 11m
1 stop
ABE9:41 pmAllentown-Bethlehem
Nov 4
ABE5:22 pmAllentown-Bethlehem
18h 16m
2 stops
IAD11:38 amWashington, D.C. Dulles Intl
$542
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated October 16, 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

Fly to

Route

Depart

Return

Price

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

$259

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 10/27

10:33 pm-9:26 am

1 stop10h 53m

Allentown-Bethlehem

Mon 11/3

6:00 am-12:11 am

2 stops18h 11m

$283

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 10/27

10:33 pm-9:26 am

1 stop10h 53m

Allentown-Bethlehem

Mon 11/3

8:00 am-7:51 pm

1 stop11h 51m

$310

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 10/31

2:18 pm-7:40 pm

1 stop5h 22m

Allentown-Bethlehem

Tue 11/4

4:30 pm-11:07 pm

1 stop6h 37m

$312

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 11/10

11:14 am-9:41 pm

1 stop10h 27m

Allentown-Bethlehem

Fri 11/14

6:00 am-8:26 pm

2 stops14h 26m

$452

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 11/10

5:29 pm-10:52 pm

1 stop5h 23m

Allentown-Bethlehem

Fri 11/14

4:30 pm-11:07 pm

1 stop6h 37m

$457

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 11/14

10:30 pm-11:48 am

2 stops13h 18m

Allentown-Bethlehem

Sat 11/15

5:22 pm-7:27 am

2 stops14h 05m

$513

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 10/31

10:30 pm-4:47 pm

2 stops18h 17m

Allentown-Bethlehem

Tue 11/4

5:22 pm-7:26 am

2 stops14h 04m

$514

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Mon 10/27

12:09 pm-9:29 pm

1 stop9h 20m

Allentown-Bethlehem

Mon 11/3

6:00 am-11:23 am

3 stops29h 23m

$534

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 10/31

6:30 am-9:41 pm

1 stop15h 11m

Allentown-Bethlehem

Tue 11/4

5:22 pm-11:38 am

2 stops18h 16m

$542

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Allentown

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Allentown?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Allentown is on a Wednesday when prices can be found for as low as $257. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Saturday is $276.

When to book flights from Washington, D.C. Dulles Intl Airport to Allentown

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Allentown according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Allentown (IAD to ABE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Allentown

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Allentown. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Allentown.
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  • How far is Washington, D.C. Dulles Intl to Allentown-Bethlehem by plane?

    There are 155.2 mi between Washington, D.C. Dulles Intl and Allentown-Bethlehem. In terms of flight time, this usually takes a little over 4h 59m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Allentown-Bethlehem Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Allentown-Bethlehem Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Allentown-Bethlehem Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Allentown-Bethlehem Airport.

  • What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

    The travel and health documents required for your trip to Allentown-Bethlehem Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Allentown-Bethlehem Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Allentown?

Book flights to Allentown if you plan to visit one of these locations
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Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Allentown?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Allentown for you.

Can I find flights from Washington, D.C. to Allentown with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Allentown flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Allentown?

Once you have performed a search for Washington, D.C. to Allentown flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Allentown right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Allentown flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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