Cheap Flights to Sully from HK$3,757

View HK$3,757 flight on Wed, 3 Jun 2026Opens in a new window

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Cheap round-trip flights to Sully

Prices were available within the past 7 days and start at HK$3,757 for one-way flights and HK$4,397 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 30 Apr - Mon, 11 May
LHR
London
IAD
Washington
HK$4,397 Return, found 3 days ago
HK$4,397
Return
found 3 days ago
Select Air Canada flight, departing Thu, 30 Apr from London to Washington, returning Mon, 11 May, priced at HK$4,397 found 3 days ago
British Airways
Sat, 11 Apr - Sun, 19 Apr
LHR
London
IAD
Washington
HK$4,707 Return, found 19 hours ago
HK$4,707
Return
found 19 hours ago
Select British Airways flight, departing Sat, 11 Apr from London to Washington, returning Sun, 19 Apr, priced at HK$4,707 found 19 hours ago
American Airlines
Mon, 4 May - Sun, 10 May
LHR
London
IAD
Washington
HK$4,721 Return, found 1 day ago
HK$4,721
Return
found 1 day ago
Select American Airlines flight, departing Mon, 4 May from London to Washington, returning Sun, 10 May, priced at HK$4,721 found 1 day ago
Scandinavian Airlines
Thu, 23 Apr - Mon, 27 Apr
LHR
London
IAD
Washington
HK$4,781 Return, found 23 hours ago
HK$4,781
Return
found 23 hours ago
Select Scandinavian Airlines flight, departing Thu, 23 Apr from London to Washington, returning Mon, 27 Apr, priced at HK$4,781 found 23 hours ago
Delta
Mon, 4 May - Sun, 10 May
LHR
London
IAD
Washington
HK$4,905 Return, found 1 day ago
HK$4,905
Return
found 1 day ago
Select Delta flight, departing Mon, 4 May from London to Washington, returning Sun, 10 May, priced at HK$4,905 found 1 day ago

Frequently asked questions

How do I find cheap flights to Sully that have flexible change policies?
By using our neat "No change fee" filter, that's how. Simply enter your travel dates, click the "Search" button, then tick the box below the "Flexible change policies" subheading (it's on the left). Expedia makes it simple to find affordable, flexible flights to Sully.
Which airlines fly to Sully?
Wherever you'd love to travel in Sully and whenever you hope to leave, you'll discover your ideal flight with one of these top airlines:

  • American Airlines - 7,501 flights to or near Sully 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 Sully 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 Sully 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 Sully?
Book well ahead, consider nearby airports, avoid school holiday time — there are lots of ways! Another one is to use Expedia's "flexible dates" feature. Find a Sully flight, then compare the cheapest prices for nearby dates. In the last seven days, the lowest price for a flight to Sully was HK$4,397.
How much is a flight to Sully?
One-way flights leaving Hong Kong SAR (HKG) sold for as little as HK$3,757 in the last seven days. During this time, the price of a return ticket to Sully varied between HK$4,397 and HK$6,864. If you spot a good deal, book as fast as you can — these prices don't hang around.
What are the most popular airports to fly into in Sully?
Pack your suitcase and cruise into one of these busy Sully 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 Sully?
If you'd prefer to spend your hard-earned holiday dollars experiencing Sully rather than on getting there, take off early in the week. The most affordable day to fly is normally Tuesday, with Monday coming in second. With many folks travelling on the weekend, Saturday often has the most expensive airfares.
How much is a plane ticket to Sully?
In the last seven days, flights to Sully varied from HK$4,397 to HK$6,864.
What months are the cheapest to book a flight to Sully?
Snap up a ticket in February for the cheapest flights to Sully. The festive month of December is known as the most expensive time to buy a fare.

Travel information

Destination airport
Washington Dulles Intl.
Destination airport IATA code
IAD
Destination city name
Washington
Return price
HK$4,396

Trending flights to Sully

Prices were available within the past 7 days and start at HK$3,757 for one-way flights and HK$4,397 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Thu, 10 Sept - Thu, 17 Sept
HKG
Hong Kong SAR
IAD
Washington
HK$6,864 Return, found 5 days ago
HK$6,864
Return
found 5 days ago
Select China Airlines flight, departing Thu, 10 Sept from Hong Kong SAR to Washington, returning Thu, 17 Sept, priced at HK$6,864 found 5 days ago

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