Cheap Flights to Loudoun County | Popular Routes to Loudoun County from HK$3,306

View HK$3,306 flight on Wed, 17 Jun 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to Loudoun County

  • Frontier Airlines

  • Delta

  • American Airlines

  • United

  • Alaska Airlines

  • Southwest Airlines

  • Spirit Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Loudoun County

Prices were available within the past 7 days and start at HK$3,306 for one-way flights and HK$5,582 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 17 Jun - Thu, 9 Jul
IST
Istanbul
IAD
Washington
HK$5,582 Return, found 1 day ago
HK$5,582
Return
found 1 day ago
Select United flight, departing Wed, 17 Jun from Istanbul to Washington, returning Thu, 9 Jul, priced at HK$5,582 found 1 day ago
American Airlines
Wed, 17 Jun - Thu, 9 Jul
IST
Istanbul
IAD
Washington
HK$5,679 Return, found 1 day ago
HK$5,679
Return
found 1 day ago
Select American Airlines flight, departing Wed, 17 Jun from Istanbul to Washington, returning Thu, 9 Jul, priced at HK$5,679 found 1 day ago
Lufthansa
Wed, 17 Jun - Thu, 9 Jul
IST
Istanbul
IAD
Washington
HK$5,745 Return, found 1 day ago
HK$5,745
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 17 Jun from Istanbul to Washington, returning Thu, 9 Jul, priced at HK$5,745 found 1 day ago
Turkish Airlines
Wed, 17 Jun - Thu, 9 Jul
IST
Istanbul
IAD
Washington
HK$5,796 Return, found 1 day ago
HK$5,796
Return
found 1 day ago
Select Turkish Airlines flight, departing Wed, 17 Jun from Istanbul to Washington, returning Thu, 9 Jul, priced at HK$5,796 found 1 day ago
United
Fri, 29 May - Sun, 7 Jun
IST
Istanbul
IAD
Washington
HK$5,857 Return, found 13 hours ago
HK$5,857
Return
found 13 hours ago
Select United flight, departing Fri, 29 May from Istanbul to Washington, returning Sun, 7 Jun, priced at HK$5,857 found 13 hours ago
British Airways
Wed, 17 Jun - Thu, 9 Jul
IST
Istanbul
IAD
Washington
HK$5,858 Return, found 1 day ago
HK$5,858
Return
found 1 day ago
Select British Airways flight, departing Wed, 17 Jun from Istanbul to Washington, returning Thu, 9 Jul, priced at HK$5,858 found 1 day ago
Air France
Fri, 29 May - Sun, 7 Jun
IST
Istanbul
IAD
Washington
HK$6,027 Return, found 13 hours ago
HK$6,027
Return
found 13 hours ago
Select Air France flight, departing Fri, 29 May from Istanbul to Washington, returning Sun, 7 Jun, priced at HK$6,027 found 13 hours ago
Delta
Wed, 17 Jun - Wed, 24 Jun
IST
Istanbul
IAD
Washington
HK$6,297 Return, found 1 day ago
HK$6,297
Return
found 1 day ago
Select Delta flight, departing Wed, 17 Jun from Istanbul to Washington, returning Wed, 24 Jun, priced at HK$6,297 found 1 day ago
Air Canada
Wed, 17 Jun - Thu, 9 Jul
IST
Istanbul
IAD
Washington
HK$6,980 Return, found 1 day ago
HK$6,980
Return
found 1 day ago
Select Air Canada flight, departing Wed, 17 Jun from Istanbul to Washington, returning Thu, 9 Jul, priced at HK$6,980 found 1 day ago
Qatar Airways
Fri, 15 May - Mon, 7 Sept
HKG
Hong Kong SAR
IAD
Washington
HK$7,888 Return, found 4 days ago
HK$7,888
Return
found 4 days ago
Select Qatar Airways flight, departing Fri, 15 May from Hong Kong SAR to Washington, returning Mon, 7 Sept, priced at HK$7,888 found 4 days ago

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.

Qatar Airways
Fri, 15 May - Mon, 7 Sept
HKG
Hong Kong SAR
IAD
Washington
HK$7,888 Return, found 4 days ago
HK$7,888
Return
found 4 days ago
Select Qatar Airways flight, departing Fri, 15 May from Hong Kong SAR to Washington, returning Mon, 7 Sept, priced at HK$7,888 found 4 days ago

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$5,582. 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$5,582 and reached a maximum cost of HK$7,888. For one-way trips leaving Istanbul (IST), the cheapest seat during this same period was just HK$3,306.
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$5,582 to HK$7,888 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.

Explore a world of travel with Expedia

*Available to Expedia members.