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Dulles Intl

$148+ Cheap flights from Lehigh Valley 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — IAD
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheap flight deals from Lehigh Valley to Dulles Intl

Keep the following information in mind while searching for Lehigh Valley to Dulles Intl flight deals. Data was last updated June 18, 2025.

Round-trip from

$259
(American Airlines)

One-way from

$148
(Mytrip)

Popular in

July

Cheapest in

October

Average price

$479
From Lehigh Valley to Washington, D.C. Dulles Intl
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One-way flight from Lehigh Valley 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 Lehigh Valley to Dulles Intl

Cheapest flights from Lehigh Valley to Dulles Intl
Explore the most affordable flight options available from Lehigh Valley to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/288:03 pmABE - IAD
1 stop3h 55mAmerican Airlines
Tue 8/55:39 pmIAD - ABE
1 stop6h 48mAmerican Airlines
Deal found 6/17$259
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3111:42 amABE - IAD
2 stops21h 41mAllegiant Air
Fri 8/13:13 pmIAD - ABE
2 stops20h 43mAllegiant Air
Deal found 6/16$301
This Mytrip deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/281:01 pmABE - IAD
3 stops22h 25mMultiple Airlines
Tue 8/512:40 pmIAD - ABE
3 stops31h 01mMultiple Airlines
Deal found 6/17$430
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/26:30 amABE - IAD
1 stop11h 00mUnited Airlines
Wed 7/98:30 amIAD - ABE
1 stop13h 25mUnited Airlines
Deal found 6/18$1,084

Cheapflights Fare Finder

Customize your flight search to find flights from Lehigh Valley to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2025.
Use the filters below to find and compare flights from Lehigh Valley to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Lehigh Valley

Fly to

Dulles Intl

Route

Depart

Return

Price

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Mon 7/28

8:03 pm-11:58 pm

1 stop3h 55m

Washington, D.C. Dulles Intl

Tue 8/5

5:39 pm-12:27 am

1 stop6h 48m

$259

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 7/31

11:42 am-9:23 am

2 stops21h 41m

Washington, D.C. Dulles Intl

Fri 8/1

3:13 pm-11:56 am

2 stops20h 43m

$301

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Mon 7/28

1:01 pm-11:26 am

3 stops22h 25m

Washington, D.C. Dulles Intl

Tue 8/5

12:40 pm-7:41 pm

3 stops31h 01m

$430

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Fri 7/4

6:30 am-5:30 pm

1 stop11h 00m

Washington, D.C. Dulles Intl

Sun 7/6

8:30 am-9:55 pm

1 stop13h 25m

$1,115

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 7/31

11:42 am-9:23 am

2 stops21h 41m

$148

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sun 6/29

4:14 pm-12:44 pm

1 stop20h 30m

$229

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Thu 7/31

8:03 pm-11:58 pm

1 stop3h 55m

$244

AllentownWashington, D.C.

ABE - IAD

ABEIAD

Allentown-Bethlehem

Sun 7/6

5:35 pm-7:19 am

2 stops13h 44m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Best time to book a flight from Lehigh Valley to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Lehigh Valley 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 Lehigh Valley 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.

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

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

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated June 18, 2025.
Get a feel of what it's like to fly with United Airlines, Allegiant Air and American Airlines from Lehigh Valley to Washington, D.C. by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,809 reviews

Entertainment

7.0

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

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
8,809 reviews
United Airlines
7.4
Good
8,809 reviews

Entertainment

7.0

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

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
722 reviews
United Airlines
7.4
Good
8,809 reviews

Entertainment

7.0

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

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
8,809 reviews

Entertainment

7.0

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

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

Find useful and relevant information for your journey from Lehigh Valley 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 are the cheapest airlines to fly from Lehigh Valley to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Lehigh Valley to Washington, D.C. Dulles Intl Airport are Allegiant Air ($148), American Airlines ($244), and United Airlines ($562).

  • Can I find deals for flights from Lehigh Valley to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Lehigh Valley to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lehigh Valley to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lehigh Valley to Dulles Intl.

  • Can I find deals for business class flights from Lehigh Valley to Dulles Intl?

    Yes. Cheapflights offers flight deals from Lehigh Valley 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 Lehigh Valley to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Lehigh Valley to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Lehigh Valley to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $347). 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.

See more FAQs

Traveling to a place near Lehigh Valley?

Book flights to Lehigh Valley if you plan to visit one of these locations
Arlington
Woodbridge
Alexandria
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Fairfax
Gaithersburg
Easton
Towson
Manassas
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Waldorf
Bowie
Hanover

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