Flight Destinations in Frederick County

View ฿11,440 flight on Tue, 24 Mar 2026Opens in a new window

Popular airlines to Frederick County

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Spirit Airlines

    Spirit Airlines

  • United

    United

  • British Airways

    British Airways

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Frederick County

Prices were available within the past 7 days and start at ฿11,440 for one-way flights and ฿15,190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Fri, 16 Jan - Thu, 22 Jan
BCN
Barcelona
IAD
Washington
฿15,190 Return, found 19 hours ago
฿15,190
Return
found 19 hours ago
Select TAP Portugal flight, departing Fri, 16 Jan from Barcelona to Washington, returning Thu, 22 Jan, priced at ฿15,190 found 19 hours ago
Delta
Thu, 15 Jan - Wed, 21 Jan
BCN
Barcelona
IAD
Washington
฿18,625 Return, found 19 hours ago
฿18,625
Return
found 19 hours ago
Select Delta flight, departing Thu, 15 Jan from Barcelona to Washington, returning Wed, 21 Jan, priced at ฿18,625 found 19 hours ago
United
Thu, 15 Jan - Tue, 20 Jan
BCN
Barcelona
IAD
Washington
฿18,850 Return, found 19 hours ago
฿18,850
Return
found 19 hours ago
Select United flight, departing Thu, 15 Jan from Barcelona to Washington, returning Tue, 20 Jan, priced at ฿18,850 found 19 hours ago
Air Canada
Thu, 15 Jan - Wed, 21 Jan
BCN
Barcelona
IAD
Washington
฿19,410 Return, found 19 hours ago
฿19,410
Return
found 19 hours ago
Select Air Canada flight, departing Thu, 15 Jan from Barcelona to Washington, returning Wed, 21 Jan, priced at ฿19,410 found 19 hours ago
Lufthansa
Thu, 15 Jan - Tue, 20 Jan
BCN
Barcelona
IAD
Washington
฿19,615 Return, found 19 hours ago
฿19,615
Return
found 19 hours ago
Select Lufthansa flight, departing Thu, 15 Jan from Barcelona to Washington, returning Tue, 20 Jan, priced at ฿19,615 found 19 hours ago
Swiss International Air Lines
Thu, 15 Jan - Thu, 22 Jan
BCN
Barcelona
IAD
Washington
฿19,760 Return, found 19 hours ago
฿19,760
Return
found 19 hours ago
Select Swiss International Air Lines flight, departing Thu, 15 Jan from Barcelona to Washington, returning Thu, 22 Jan, priced at ฿19,760 found 19 hours ago
British Airways
Thu, 15 Jan - Thu, 22 Jan
BCN
Barcelona
BWI
Baltimore
฿20,160 Return, found 19 hours ago
฿20,160
Return
found 19 hours ago
Select British Airways flight, departing Thu, 15 Jan from Barcelona to Baltimore, returning Thu, 22 Jan, priced at ฿20,160 found 19 hours ago
KLM
Thu, 15 Jan - Thu, 22 Jan
BCN
Barcelona
IAD
Washington
฿20,270 Return, found 19 hours ago
฿20,270
Return
found 19 hours ago
Select KLM flight, departing Thu, 15 Jan from Barcelona to Washington, returning Thu, 22 Jan, priced at ฿20,270 found 19 hours ago
Air France
Thu, 15 Jan - Thu, 22 Jan
BCN
Barcelona
IAD
Washington
฿20,275 Return, found 19 hours ago
฿20,275
Return
found 19 hours ago
Select Air France flight, departing Thu, 15 Jan from Barcelona to Washington, returning Thu, 22 Jan, priced at ฿20,275 found 19 hours ago
Austrian Airlines
Thu, 15 Jan - Wed, 21 Jan
BCN
Barcelona
IAD
Washington
฿20,630 Return, found 19 hours ago
฿20,630
Return
found 19 hours ago
Select Austrian Airlines flight, departing Thu, 15 Jan from Barcelona to Washington, returning Wed, 21 Jan, priced at ฿20,630 found 19 hours 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 ฿15,190.
How much is a flight to Frederick County?
One-way flights departing from Barcelona (BCN) sold for as little as ฿11,440 in the last seven days. During this time, the cost of a return air ticket to Frederick County ranged between ฿15,190 and ฿30,215. 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 ฿15,190 to ฿30,215.
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.

Saudia
Tue, 5 May - Fri, 8 May
BKK
Bangkok
IAD
Washington
฿30,215 Return, found 3 days ago
฿30,215
Return
found 3 days ago
Select Saudia flight, departing Tue, 5 May from Bangkok to Washington, returning Fri, 8 May, priced at ฿30,215 found 3 days ago
*Available to Expedia members.