$109 Cheap Flights from Washington (DCA) to Allentown (ABE)

View $109 flight on Wed, Jun 11, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Lehigh Valley Intl. Airport (ABE)

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Find available prices by choosing your travel dates.

Cheap Flights from Washington to Allentown (DCA-ABE)

Prices were available within the past 7 days and start at $109 for one-way flights and $226 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jun 11 - Tue, Jun 17
DCA
Washington
ABE
Allentown
$226 Roundtrip, found 3 days ago
$226
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jun 11 from Washington to Allentown, returning Tue, Jun 17, priced at $226 found 3 days ago
American Airlines
Mon, Sep 8 - Tue, Sep 9
DCA
Washington
ABE
Allentown
$235 Roundtrip, found 4 days ago
$235
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Sep 8 from Washington to Allentown, returning Tue, Sep 9, priced at $235 found 4 days ago
American Airlines
Wed, Jun 11 - Tue, Jun 17
DCA
Washington
ABE
Allentown
$239 Roundtrip, found 3 days ago
$239
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jun 11 from Washington to Allentown, returning Tue, Jun 17, priced at $239 found 3 days ago
American Airlines
Mon, Sep 8 - Tue, Sep 9
DCA
Washington
ABE
Allentown
$248 Roundtrip, found 4 days ago
$248
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Sep 8 from Washington to Allentown, returning Tue, Sep 9, priced at $248 found 4 days ago
American Airlines
Sat, May 3 - Sat, May 10
DCA
Washington
ABE
Allentown
$253 Roundtrip, found 4 days ago
$253
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, May 3 from Washington to Allentown, returning Sat, May 10, priced at $253 found 4 days ago
American Airlines
Wed, May 7 - Thu, May 8
DCA
Washington
ABE
Allentown
$260 Roundtrip, found 6 days ago
$260
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, May 7 from Washington to Allentown, returning Thu, May 8, priced at $260 found 6 days ago
American Airlines
Sat, May 3 - Sat, May 10
DCA
Washington
ABE
Allentown
$264 Roundtrip, found 4 days ago
$264
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, May 3 from Washington to Allentown, returning Sat, May 10, priced at $264 found 4 days ago
American Airlines
Wed, May 7 - Thu, May 8
DCA
Washington
ABE
Allentown
$273 Roundtrip, found 6 days ago
$273
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, May 7 from Washington to Allentown, returning Thu, May 8, priced at $273 found 6 days ago
United
Wed, Jun 11 - Tue, Jun 17
DCA
Washington
ABE
Allentown
$375 Roundtrip, found 3 days ago
$375
Roundtrip
found 3 days ago
Select United flight, departing Wed, Jun 11 from Washington to Allentown, returning Tue, Jun 17, priced at $375 found 3 days ago
Delta
Tue, Sep 16 - Fri, Sep 26
DCA
Washington
ABE
Allentown
$418 Roundtrip, found 1 hour ago
$418
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Sep 16 from Washington to Allentown, returning Fri, Sep 26, priced at $418 found 1 hour ago
Flights from Washington (DCA) to Allentown (ABE)
Origin airport
Ronald Reagan Washington National
Destination airport
Lehigh Valley Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$226
Distance
150 mi

Washington to Allentown Flights

The cheapest times to fly from Washington to Allentown

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Allentown are during the month of June. You can find some of the cheapest flights from Washington to Allentown with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Allentown

Sunday is one of the best days to book for cheap flights from Washington to Allentown: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Washington to Allentown

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Allentown in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Allentown flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Allentown airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Lehigh Valley Intl. Airport (ABE) cost?
Discover the latest flight deals from DCA to ABE by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from DCA to ABE?
The cheapest flights from DCA to ABE are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DCA to ABE?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from DCA to ABE. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Lehigh Valley Intl. Airport (ABE)?
You’ll have to catch a flight with a layover when traveling from Ronald Reagan Washington National Airport (DCA) to Lehigh Valley Intl. Airport (ABE). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from DCA to ABE?
Generally you’ll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Lehigh Valley Intl. Airport (ABE)?
To reach Lehigh Valley Intl. Airport (ABE) without delays, pick a flight that takes off from Ronald Reagan Washington National Airport (DCA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Allentown from Ronald Reagan Washington National Airport (DCA)?
Explore your flight options from Ronald Reagan Washington National Airport (DCA) to Philadelphia Intl. Airport (PHL). This is the only airport in Allentown you can jet into if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Lehigh Valley Intl. Airport (ABE) last-minute?
Waiting until just before your departure to book your flight from DCA to ABE often results in higher prices. While it’s possible to find some last-minute offers, they’re not always guaranteed. Keep your travel schedule open for the best chance of snagging a bargain.
Is it cheaper to book a DCA to ABE flight and hotel package?
Opting for a DCA to ABE flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Lehigh Valley Intl. Airport (ABE)?
If you reserved your DCA to ABE flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.