Cheap Flights to Loudoun County | Popular Routes to Loudoun County from HK$498

View HK$498 flight on Thu, 22 Jan 2026Opens in a new window

Popular airlines to Loudoun County

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Frontier Airlines

    Frontier Airlines

  • Spirit Airlines

    Spirit Airlines

  • Southwest Airlines

    Southwest Airlines

  • British Airways

    British Airways

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Cheap round-trip flights to Loudoun County

Prices were available within the past 7 days and start at HK$498 for one-way flights and HK$995 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 22 Jan - Thu, 5 Feb
JFK
New York
DCA
Washington
HK$995 Return, found 1 day ago
HK$995
Return
found 1 day ago
Select Delta flight, departing Thu, 22 Jan from New York to Washington, returning Thu, 5 Feb, priced at HK$995 found 1 day ago
Delta
Sat, 14 Feb - Sat, 21 Feb
JFK
New York
IAD
Washington
HK$1,004 Return, found 2 days ago
HK$1,004
Return
found 2 days ago
Select Delta flight, departing Sat, 14 Feb from New York to Washington, returning Sat, 21 Feb, priced at HK$1,004 found 2 days ago
American Airlines
Thu, 22 Jan - Thu, 5 Feb
JFK
New York
DCA
Washington
HK$1,468 Return, found 1 day ago
HK$1,468
Return
found 1 day ago
Select American Airlines flight, departing Thu, 22 Jan from New York to Washington, returning Thu, 5 Feb, priced at HK$1,468 found 1 day ago
Icelandair
Wed, 14 Jan - Fri, 23 Jan
LHR
London
IAD
Washington
HK$3,737 Return, found 5 days ago
HK$3,737
Return
found 5 days ago
Select Icelandair flight, departing Wed, 14 Jan from London to Washington, returning Fri, 23 Jan, priced at HK$3,737 found 5 days ago
United
Wed, 21 Jan - Sat, 31 Jan
LHR
London
IAD
Washington
HK$4,387 Return, found 2 days ago
HK$4,387
Return
found 2 days ago
Select United flight, departing Wed, 21 Jan from London to Washington, returning Sat, 31 Jan, priced at HK$4,387 found 2 days ago
Scandinavian Airlines
Thu, 19 Feb - Wed, 25 Feb
LHR
London
IAD
Washington
HK$4,492 Return, found 1 hour ago
HK$4,492
Return
found 1 hour ago
Select Scandinavian Airlines flight, departing Thu, 19 Feb from London to Washington, returning Wed, 25 Feb, priced at HK$4,492 found 1 hour ago
Austrian Airlines
Wed, 21 Jan - Sat, 31 Jan
LHR
London
IAD
Washington
HK$4,508 Return, found 2 days ago
HK$4,508
Return
found 2 days ago
Select Austrian Airlines flight, departing Wed, 21 Jan from London to Washington, returning Sat, 31 Jan, priced at HK$4,508 found 2 days ago
Lufthansa
Wed, 21 Jan - Sat, 31 Jan
LHR
London
IAD
Washington
HK$4,540 Return, found 2 days ago
HK$4,540
Return
found 2 days ago
Select Lufthansa flight, departing Wed, 21 Jan from London to Washington, returning Sat, 31 Jan, priced at HK$4,540 found 2 days ago
Virgin Atlantic
Mon, 19 Jan - Mon, 2 Feb
LHR
London
IAD
Washington
HK$4,673 Return, found 3 days ago
HK$4,673
Return
found 3 days ago
Select Virgin Atlantic flight, departing Mon, 19 Jan from London to Washington, returning Mon, 2 Feb, priced at HK$4,673 found 3 days ago
Air Canada
Sat, 14 Mar - Sun, 22 Mar
LHR
London
DCA
Washington
HK$4,675 Return, found 2 days ago
HK$4,675
Return
found 2 days ago
Select Air Canada flight, departing Sat, 14 Mar from London to Washington, returning Sun, 22 Mar, priced at HK$4,675 found 2 days ago

About Loudoun County

Expedia offers flights to Loudoun County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Loudoun County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to Loudoun County that have flexible change policies?
At Expedia, we've been channeling our inner contortionist to offer you the most flexible fares around. Just tick the "No change fee" box right under the filter heading "Flexible change policies" to find your perfect flight to Loudoun County.
Which airlines fly to Loudoun County?
With a good range of airlines flying to destinations in or near Loudoun County, exploring this region is easy. Jet off with one of these quality carriers:

  • American Airlines - 7,501 flights to or near Loudoun County each month, including 7,284 flights to Ronald Reagan Washington National Airport (DCA) and 216 flights to Washington Dulles Intl. Airport (IAD) per month.
  • United Airlines - 5,939 flights to or near Loudoun County each month, including 5,146 flights to Washington Dulles Intl. Airport (IAD) and 793 flights to Ronald Reagan Washington National Airport (DCA) per month.
  • Delta Air Lines - 2,036 flights to or near Loudoun County each month, including 1,516 flights to Ronald Reagan Washington National Airport (DCA) and 520 flights to Washington Dulles Intl. Airport (IAD) per month.

How can I find cheap tickets to Loudoun County?
One of the best ways to find cheap tickets to Loudoun County is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. It will bring up the cheapest prices for nearby days. The lowest price for a flight to Loudoun County in the last seven days was HK$995. Booking well ahead of time will usually help you walk away with an even bigger bargain.
How much is a flight to Loudoun County?
In the last seven days, return tickets to Loudoun County sold for as little as HK$995 and reached a maximum cost of HK$7,103. For one-way trips leaving New York (JFK), the cheapest seat during this same period was just HK$498.
What are the most popular airports to fly into in Loudoun County?
Pack your bags and glide into one of these top Loudoun County airports:

  • Ronald Reagan Washington National Airport (DCA) - 11,555 flights per month.
  • Washington Dulles Intl. Airport (IAD) - 6,533 flights per month.

When is the cheapest time to fly to Loudoun County?
If you're not fixed on your travel dates to Loudoun County, depart earlier in the week. The most economical day to take off is normally Tuesday, followed closely by Monday. Saturday is typically the costliest day, with lots of holiday makers preferring to fly on weekends.
How much is a plane ticket to Loudoun County?
Seats ranged from just HK$995 to HK$7,103 in the last seven days. When you're ready to book, we're here to help you land an amazing deal to Loudoun County.
What months are the cheapest to book a flight to Loudoun County?
February is the best month to book a seat for your Loudoun County getaway. Airfares are at a premium throughout December, so avoid this time if you can.

Trending flights to Loudoun County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Mon, 23 Mar - Tue, 31 Mar
HKG
Hong Kong SAR
IAD
Washington
HK$7,103 Return, found 2 days ago
HK$7,103
Return
found 2 days ago
Select China Airlines flight, departing Mon, 23 Mar from Hong Kong SAR to Washington, returning Tue, 31 Mar, priced at HK$7,103 found 2 days ago
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