Cheap flights to Frederick County

View €282 flight on Tue, 10 Mar 2026Opens in a new window

Popular airlines to Frederick County

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Spirit Airlines

    Spirit Airlines

  • Southwest Airlines

    Southwest Airlines

  • United

    United

  • Frontier Airlines

    Frontier Airlines

  • Alaska Airlines

    Alaska Airlines

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Cheap round-trip flights to Frederick County

Prices were available within the past 7 days and start at €282 for one-way flights and €381 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sat, 21 Nov - Wed, 25 Nov
DUB
Dublin
IAD
Washington
€381 Return, found 6 days ago
€381
Return
found 6 days ago
Select Scandinavian Airlines flight, departing Sat, 21 Nov from Dublin to Washington, returning Wed, 25 Nov, priced at €381 found 6 days ago
Icelandair
Fri, 27 Feb - Tue, 3 Mar
DUB
Dublin
IAD
Washington
€385 Return, found 1 day ago
€385
Return
found 1 day ago
Select Icelandair flight, departing Fri, 27 Feb from Dublin to Washington, returning Tue, 3 Mar, priced at €385 found 1 day ago
Icelandair
Fri, 27 Feb - Tue, 3 Mar
DUB
Dublin
BWI
Baltimore
€389 Return, found 1 day ago
€389
Return
found 1 day ago
Select Icelandair flight, departing Fri, 27 Feb from Dublin to Baltimore, returning Tue, 3 Mar, priced at €389 found 1 day ago
TAP Portugal
Fri, 10 Apr - Sat, 18 Apr
DUB
Dublin
IAD
Washington
€404 Return, found 6 days ago
€404
Return
found 6 days ago
Select TAP Portugal flight, departing Fri, 10 Apr from Dublin to Washington, returning Sat, 18 Apr, priced at €404 found 6 days ago
American Airlines
Mon, 9 Mar - Sun, 15 Mar
DUB
Dublin
IAD
Washington
€439 Return, found 4 days ago
€439
Return
found 4 days ago
Select American Airlines flight, departing Mon, 9 Mar from Dublin to Washington, returning Sun, 15 Mar, priced at €439 found 4 days ago
Lufthansa
Fri, 27 Feb - Tue, 3 Mar
DUB
Dublin
IAD
Washington
€440 Return, found 1 day ago
€440
Return
found 1 day ago
Select Lufthansa flight, departing Fri, 27 Feb from Dublin to Washington, returning Tue, 3 Mar, priced at €440 found 1 day ago
British Airways
Mon, 23 Feb - Mon, 2 Mar
DUB
Dublin
IAD
Washington
€441 Return, found 6 days ago
€441
Return
found 6 days ago
Select British Airways flight, departing Mon, 23 Feb from Dublin to Washington, returning Mon, 2 Mar, priced at €441 found 6 days ago
Swiss International Air Lines
Mon, 2 Mar - Mon, 9 Mar
DUB
Dublin
IAD
Washington
€447 Return, just found
€447
Return
just found
Select Swiss International Air Lines flight, departing Mon, 2 Mar from Dublin to Washington, returning Mon, 9 Mar, priced at €447 just found
TAP Portugal
Fri, 17 Apr - Thu, 23 Apr
VIE
Vienna
IAD
Washington
€448 Return, found 1 day ago
€448
Return
found 1 day ago
Select TAP Portugal flight, departing Fri, 17 Apr from Vienna to Washington, returning Thu, 23 Apr, priced at €448 found 1 day ago
Delta
Sat, 28 Feb - Mon, 9 Mar
DUB
Dublin
IAD
Washington
€453 Return, found 4 days ago
€453
Return
found 4 days ago
Select Delta flight, departing Sat, 28 Feb from Dublin to Washington, returning Mon, 9 Mar, priced at €453 found 4 days ago

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.

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 €381.
How much is a flight to Frederick County?
One-way flights departing from Dublin (DUB) sold for as little as €282 in the last seven days. During this time, the cost of a return air ticket to Frederick County ranged between €381 and €507. 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 €381 to €507.
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.

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.

Scandinavian Airlines
Sat, 21 Nov - Wed, 25 Nov
DUB
Dublin
IAD
Washington
€381 Return, found 6 days ago
€381
Return
found 6 days ago
Select Scandinavian Airlines flight, departing Sat, 21 Nov from Dublin to Washington, returning Wed, 25 Nov, priced at €381 found 6 days ago
*Available to Expedia members.