$244 Cheap Flights from Allentown (ABE) to Washington (IAD)

View $244 flight on Sat, Oct 25, 2025Opens in a new window

Popular airlines from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Allentown to Washington (ABE-IAD)

Prices were available within the past 7 days and start at $244 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Sep 17 - Sat, Sep 20
ABE
Allentown
IAD
Washington
$259 Roundtrip, found 6 days ago
$259
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Sep 17 from Allentown to Washington, returning Sat, Sep 20, priced at $259 found 6 days ago
American Airlines
Wed, Sep 10 - Wed, Sep 17
ABE
Allentown
IAD
Washington
$264 Roundtrip, found 3 days ago
$264
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 10 from Allentown to Washington, returning Wed, Sep 17, priced at $264 found 3 days ago
American Airlines
Wed, Oct 22 - Sat, Oct 25
ABE
Allentown
IAD
Washington
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from Allentown to Washington, returning Sat, Oct 25, priced at $319 found 1 day ago
American Airlines
Wed, Sep 10 - Wed, Sep 17
ABE
Allentown
IAD
Washington
$324 Roundtrip, found 3 days ago
$324
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 10 from Allentown to Washington, returning Wed, Sep 17, priced at $324 found 3 days ago
American Airlines
Tue, Sep 9 - Sat, Sep 13
ABE
Allentown
IAD
Washington
$329 Roundtrip, found 6 days ago
$329
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Sep 9 from Allentown to Washington, returning Sat, Sep 13, priced at $329 found 6 days ago
American Airlines
Thu, Sep 4 - Sat, Sep 13
ABE
Allentown
IAD
Washington
$334 Roundtrip, found 6 days ago
$334
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Sep 4 from Allentown to Washington, returning Sat, Sep 13, priced at $334 found 6 days ago
American Airlines
Sat, Nov 1 - Tue, Nov 18
ABE
Allentown
IAD
Washington
$339 Roundtrip, found 23 hours ago
$339
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sat, Nov 1 from Allentown to Washington, returning Tue, Nov 18, priced at $339 found 23 hours ago
American Airlines
Sun, Dec 7 - Tue, Dec 16
ABE
Allentown
IAD
Washington
$364 Roundtrip, found 1 day ago
$364
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Dec 7 from Allentown to Washington, returning Tue, Dec 16, priced at $364 found 1 day ago
American Airlines
Sun, Dec 14 - Thu, Jan 1
ABE
Allentown
IAD
Washington
$384 Roundtrip, found 23 hours ago
$384
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sun, Dec 14 from Allentown to Washington, returning Thu, Jan 1, priced at $384 found 23 hours ago
Delta
Tue, Oct 14 - Sun, Oct 26
ABE
Allentown
IAD
Washington
$585 Roundtrip, found 2 days ago
$585
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Oct 14 from Allentown to Washington, returning Sun, Oct 26, priced at $585 found 2 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $324
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $324
Flights from Allentown (ABE) to Washington (IAD)
Origin airport
Lehigh Valley Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$258
Distance
158 mi

Allentown to Washington Flights

The cheapest times to fly from Allentown to Washington

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 Allentown to Washington are during the month of September. You can find some of the cheapest flights from Allentown to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Allentown to Washington

Sunday is one of the best days to book for cheap flights from Allentown to Washington: 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 Allentown to Washington

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 Allentown to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $244 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 Allentown to Washington 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 Allentown to Washington 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 Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD) cost?
Secure a cheap one-way flight from $244 or cheap return flight from $259 from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from ABE to IAD is September, when there's less demand. Off-peak season is usually when airlines offer better prices between these airports.
Which airlines fly direct from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD)?
You can't fly directly from Allentown, PA (ABE-Lehigh Valley Intl.) to Washington Dulles Intl. Airport (IAD). However, there are other airports that offer nonstop flights. Board your plane at Philadelphia Intl. Airport (PHL) and travel straight to Washington without layovers.
What is the cheapest airline that flies from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline flying from ABE to IAD, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD)?
Direct flights from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ABE to IAD?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from ABE to IAD?
With 88% of journeys typically landing on schedule, United Airlines has the best on-time performance for direct flights from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD). To keep track of your flight status and get notifications if anything changes, simply head to the Expedia App.
What is the best time to fly from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD)?
To touch down at Washington Dulles Intl. Airport (IAD) on schedule, choose a flight that leaves Lehigh Valley Intl. Airport (ABE) 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.
Is it cheaper to buy a plane ticket from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD) last-minute?
Holding off until just before your trip to book your flight from ABE to IAD generally means paying more. While it's possible to find some last-minute offers, there's no guarantee. Keep your travel plans flexible for the best chance of scoring a bargain.
Is it cheaper to book an ABE to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking an ABE to IAD flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the hassle out of planning your trip. Just secure your flights and select from our wide range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Lehigh Valley Intl. Airport (ABE) to Washington Dulles Intl. Airport (IAD)?
In most cases, you can cancel or reschedule your ABE to IAD flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further information, head to our Customer Service portal.

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*Available to One Key members.