A stone bridge over a canal with lily pads, brick buildings, and a clear blue sky.

Flight Destinations in Frederick County

View ฿16,325 flight on Wed, 30 Sept 2026Opens in a new window

Popular airlines to Frederick County

  • Frontier Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Alaska Airlines

  • JetBlue Airways

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Cheap round-trip flights to Frederick County

Prices were available within the past 7 days and start at ฿16,325 for one-way flights and ฿19,965 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Tue, 1 Sept - Sun, 13 Sept
FRA
Frankfurt
IAD
Washington
฿19,965 Return, found 6 hours ago
฿19,965
Return
found 6 hours ago
Select TAP Portugal flight, departing Tue, 1 Sept from Frankfurt to Washington, returning Sun, 13 Sept, priced at ฿19,965 found 6 hours ago
Swiss International Air Lines
Thu, 27 Aug - Thu, 3 Sept
LHR
London
IAD
Washington
฿22,895 Return, found 11 hours ago
฿22,895
Return
found 11 hours ago
Select Swiss International Air Lines flight, departing Thu, 27 Aug from London to Washington, returning Thu, 3 Sept, priced at ฿22,895 found 11 hours ago
Swiss International Air Lines
Sat, 5 Sept - Fri, 11 Sept
LHR
London
BWI
Baltimore
฿23,190 Return, found 3 days ago
฿23,190
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Sat, 5 Sept from London to Baltimore, returning Fri, 11 Sept, priced at ฿23,190 found 3 days ago
Swiss International Air Lines
Fri, 23 Oct - Sat, 7 Nov
LHR
London
IAD
Washington
฿23,655 Return, found 1 day ago
฿23,655
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Fri, 23 Oct from London to Washington, returning Sat, 7 Nov, priced at ฿23,655 found 1 day ago
Austrian Airlines
Thu, 27 Aug - Thu, 3 Sept
LHR
London
IAD
Washington
฿23,725 Return, found 11 hours ago
฿23,725
Return
found 11 hours ago
Select Austrian Airlines flight, departing Thu, 27 Aug from London to Washington, returning Thu, 3 Sept, priced at ฿23,725 found 11 hours ago
Lufthansa
Sat, 5 Sept - Fri, 11 Sept
LHR
London
IAD
Washington
฿24,105 Return, found 3 days ago
฿24,105
Return
found 3 days ago
Select Lufthansa flight, departing Sat, 5 Sept from London to Washington, returning Fri, 11 Sept, priced at ฿24,105 found 3 days ago
American Airlines
Thu, 27 Aug - Thu, 3 Sept
LHR
London
IAD
Washington
฿24,130 Return, found 11 hours ago
฿24,130
Return
found 11 hours ago
Select American Airlines flight, departing Thu, 27 Aug from London to Washington, returning Thu, 3 Sept, priced at ฿24,130 found 11 hours ago
United
Thu, 27 Aug - Thu, 3 Sept
LHR
London
IAD
Washington
฿24,130 Return, found 11 hours ago
฿24,130
Return
found 11 hours ago
Select United flight, departing Thu, 27 Aug from London to Washington, returning Thu, 3 Sept, priced at ฿24,130 found 11 hours ago
Finnair
Thu, 27 Aug - Thu, 3 Sept
LHR
London
IAD
Washington
฿24,135 Return, found 11 hours ago
฿24,135
Return
found 11 hours ago
Select Finnair flight, departing Thu, 27 Aug from London to Washington, returning Thu, 3 Sept, priced at ฿24,135 found 11 hours ago
Delta
Sat, 5 Sept - Fri, 11 Sept
LHR
London
BWI
Baltimore
฿24,430 Return, found 3 days ago
฿24,430
Return
found 3 days ago
Select Delta flight, departing Sat, 5 Sept from London to Baltimore, returning Fri, 11 Sept, priced at ฿24,430 found 3 days ago

Trending flights to Frederick 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.

Saudia
Mon, 26 Oct - Sat, 7 Nov
BKK
Bangkok
IAD
Washington
฿26,475 Return, found 5 days ago
฿26,475
Return
found 5 days ago
Select Saudia flight, departing Mon, 26 Oct from Bangkok to Washington, returning Sat, 7 Nov, priced at ฿26,475 found 5 days ago

Frequently asked questions

How do I find cheap flights to Frederick County that have flexible change policies?
At Expedia, we've been channeling our inner contortionist to bring you the most flexible airfares around. Simply check the "No change fee" box directly beneath the filter heading "Flexible change policies" to find your dream flight to Frederick County.
Which airlines fly to Frederick County?
A good selection of airlines fly to destinations in or close to Frederick County. Your trip is just clicks away with these popular carriers:

  • American Airlines - 7,501 flights to or near Frederick 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 Frederick 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 Frederick 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 Frederick County?
Book ahead of time, fly with budget airlines, use miles or points — there are loads of ways! One more is to make the most of Expedia's "flexible dates" feature. Search for your Frederick County flight, then compare the cheapest prices for nearby dates. In the last seven days, the lowest price for a flight to Frederick County was ฿19,965.
How much is a flight to Frederick County?
One-way flights departing from London (LHR) sold for as little as ฿16,325 in the last seven days. During this time, the cost of a return air ticket to Frederick County ranged between ฿19,965 and ฿26,475. If you find a fantastic deal, book immediately — these prices don't stick around for long.
What are the most popular airports to fly into in Frederick County?
Choosing your airport comes down to factors including your budget and carrier. Here are your two options in Frederick County:

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

How much is a plane ticket to Frederick County?
In the last seven days, tickets to Frederick County fluctuated from ฿19,965 to ฿26,475.
What is the best time to go to Frederick County?
Green Valley, Frederick County's top city, is a terrific destination to explore at anytime. Don't like chilly weather? Then head here from June 20 onward in summer, when average temperatures range from 18ºC to 29ºC. March, May and June is when Green Valley is at its busiest.
What months are the cheapest to book a flight to Frederick County?
February is a great month to land a bargain fare to Frederick County. Bear in mind that the costliest time to make a booking in the USA isn't during the peak of summer, but the festive month of December.

Book with confidence

About Frederick County

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