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Cheap flights from Washington, D.C. Dulles Intl Airport to Allentown from $146

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 9/15. 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 (IAD-ABE)

Cheap round-trip flights

American Airlines Logo
4:36 pm - 9:44 pmIAD-ABE
5h 08m1 stop
American Airlines Logo
2:52 pm - 6:47 pmABE-IAD
3h 55m1 stop
$269American Airlines
Find Deal
Tue, Sep 2 - Sat, Sep 6
American Airlines Logo
5:35 pm - 10:52 pmIAD-ABE
5h 17m1 stop
American Airlines Logo
6:16 am - 1:12 pmABE-IAD
6h 56m1 stop
$319American Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 15
Logo
9:03 am - 10:47 pmIAD-ABE
13h 44m2 stops
Logo
6:00 am - 11:23 amABE-IAD
29h 23m3 stops
$334
Find Deal
Sun, Sep 7 - Mon, Sep 8
Logo
6:10 am - 10:47 pmIAD-ABE
16h 37m2 stops
Logo
8:30 am - 6:24 pmABE-IAD
9h 54m1 stop
$338
Find Deal
Sun, Sep 7 - Mon, Sep 8
Logo
9:03 am - 10:47 pmIAD-ABE
13h 44m2 stops
Logo
6:00 am - 11:23 amABE-IAD
29h 23m3 stops
$345
Find Deal
Thu, Sep 4 - Mon, Sep 8
Logo
9:03 am - 10:38 pmIAD-ABE
13h 35m2 stops
Logo
12:54 pm - 11:23 amABE-IAD
22h 29m3 stops
$360
Find Deal
Sun, Sep 28 - Mon, Sep 29
American Airlines Logo
1:09 pm - 5:23 pmIAD-ABE
4h 14m1 stop
American Airlines Logo
1:56 pm - 7:45 pmABE-IAD
5h 49m1 stop
$403American Airlines
Find Deal
Thu, Oct 9 - Sat, Oct 11
United Airlines Logo
10:20 pm - 11:48 amIAD-ABE
13h 28m2 stops
United Airlines Logo
5:22 pm - 7:27 amABE-IAD
14h 05m2 stops
$508United Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 15
United Airlines Logo
5:45 pm - 11:58 amIAD-ABE
18h 13m2 stops
United Airlines Logo
1:00 pm - 7:29 amABE-IAD
18h 29m2 stops
$513United Airlines
Find Deal
Tue, Sep 2 - Sat, Sep 6
United Airlines Logo
10:10 pm - 11:58 amIAD-ABE
13h 48m2 stops
United Airlines Logo
5:28 pm - 7:28 amABE-IAD
14h 00m2 stops
$518United Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8

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
IAD10:20 pmWashington, D.C. Dulles Intl
13h 28m
2 stops
ABE11:48 amAllentown-Bethlehem
Nov 15
ABE5:22 pmAllentown-Bethlehem
14h 05m
2 stops
IAD7:27 amWashington, D.C. Dulles Intl
$508
Find similar
United Airlines
Sep 2
IAD5:45 pmWashington, D.C. Dulles Intl
18h 13m
2 stops
ABE11:58 amAllentown-Bethlehem
Sep 6
ABE1:00 pmAllentown-Bethlehem
18h 29m
2 stops
IAD7:29 amWashington, D.C. Dulles Intl
$513
Find similar
United Airlines
Sep 4
IAD10:10 pmWashington, D.C. Dulles Intl
13h 48m
2 stops
ABE11:58 amAllentown-Bethlehem
Sep 8
ABE5:28 pmAllentown-Bethlehem
14h 00m
2 stops
IAD7:28 amWashington, D.C. Dulles Intl
$518
Find similar

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
Sep 2
IAD4:36 pmWashington, D.C. Dulles Intl
5h 08m
1 stop
ABE9:44 pmAllentown-Bethlehem
Sep 6
ABE2:52 pmAllentown-Bethlehem
3h 55m
1 stop
IAD6:47 pmWashington, D.C. Dulles Intl
$269
Find similar
American Airlines
Nov 14
IAD5:35 pmWashington, D.C. Dulles Intl
5h 17m
1 stop
ABE10:52 pmAllentown-Bethlehem
Nov 15
ABE6:16 amAllentown-Bethlehem
6h 56m
1 stop
IAD1:12 pmWashington, D.C. Dulles Intl
$319
Find similar
American Airlines
Aug 22
IAD7:44 amWashington, D.C. Dulles Intl
6h 42m
1 stop
ABE2:26 pmAllentown-Bethlehem
Aug 23
ABE8:07 pmAllentown-Bethlehem
3h 50m
1 stop
IAD11:57 pmWashington, D.C. Dulles Intl
$379
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 August 20, 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

Tue 9/2

4:36 pm-9:44 pm

1 stop5h 08m

Allentown-Bethlehem

Sat 9/6

2:52 pm-6:47 pm

1 stop3h 55m

$269

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

6:16 am-1:12 pm

1 stop6h 56m

$319

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Sun 9/7

9:03 am-10:47 pm

2 stops13h 44m

Allentown-Bethlehem

Mon 9/8

6:00 am-11:23 am

3 stops29h 23m

$334

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Sun 9/7

6:10 am-10:47 pm

2 stops16h 37m

Allentown-Bethlehem

Mon 9/8

8:30 am-6:24 pm

1 stop9h 54m

$338

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Thu 9/4

9:03 am-10:47 pm

2 stops13h 44m

Allentown-Bethlehem

Mon 9/8

6:00 am-11:23 am

3 stops29h 23m

$345

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Sun 9/28

9:03 am-10:38 pm

2 stops13h 35m

Allentown-Bethlehem

Mon 9/29

12:54 pm-11:23 am

3 stops22h 29m

$360

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Thu 10/9

1:09 pm-5:23 pm

1 stop4h 14m

Allentown-Bethlehem

Sat 10/11

1:56 pm-7:45 pm

1 stop5h 49m

$403

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Fri 11/14

10:20 pm-11:48 am

2 stops13h 28m

Allentown-Bethlehem

Sat 11/15

5:22 pm-7:27 am

2 stops14h 05m

$508

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Tue 9/2

5:45 pm-11:58 am

2 stops18h 13m

Allentown-Bethlehem

Sat 9/6

1:00 pm-7:29 am

2 stops18h 29m

$513

Washington, D.C.Allentown

IAD - ABE

IADABE

Washington, D.C. Dulles Intl

Thu 9/4

10:10 pm-11:58 am

2 stops13h 48m

Allentown-Bethlehem

Mon 9/8

5:28 pm-7:28 am

2 stops14h 00m

$518

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 14m.

  • 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.

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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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