Flight to Frederick County

View S$165 flight on Sat, 25 Apr, 2026Opens in a new window

Popular airlines to Frederick County

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Spirit Airlines

    Spirit Airlines

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • United

    United

  • Alaska Airlines

    Alaska Airlines

  • 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 S$165 for one-way flights and S$343 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 23 Feb - Tue, 24 Feb
SFO
San Francisco
IAD
Washington
S$343 Return, found 1 day ago
S$343
Return
found 1 day ago
Select Delta flight, departing Mon, 23 Feb from San Francisco to Washington, returning Tue, 24 Feb, priced at S$343 found 1 day ago
United
Mon, 23 Feb - Tue, 24 Feb
SFO
San Francisco
IAD
Washington
S$484 Return, found 1 day ago
S$484
Return
found 1 day ago
Select United flight, departing Mon, 23 Feb from San Francisco to Washington, returning Tue, 24 Feb, priced at S$484 found 1 day ago
American Airlines
Mon, 23 Feb - Tue, 24 Feb
SFO
San Francisco
IAD
Washington
S$509 Return, found 1 day ago
S$509
Return
found 1 day ago
Select American Airlines flight, departing Mon, 23 Feb from San Francisco to Washington, returning Tue, 24 Feb, priced at S$509 found 1 day ago
United
Sat, 7 Mar - Tue, 10 Mar
SFO
San Francisco
BWI
Baltimore
S$532 Return, found 6 days ago
S$532
Return
found 6 days ago
Select United flight, departing Sat, 7 Mar from San Francisco to Baltimore, returning Tue, 10 Mar, priced at S$532 found 6 days ago
Swiss International Air Lines
Sat, 21 Feb - Sat, 28 Feb
LHR
London
IAD
Washington
S$718 Return, found 3 days ago
S$718
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Sat, 21 Feb from London to Washington, returning Sat, 28 Feb, priced at S$718 found 3 days ago
Swiss International Air Lines
Sat, 21 Feb - Sat, 28 Feb
LHR
London
IAD
Washington
S$746 Return, found 3 days ago
S$746
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Sat, 21 Feb from London to Washington, returning Sat, 28 Feb, priced at S$746 found 3 days ago
Austrian Airlines
Sat, 21 Feb - Sat, 28 Feb
LHR
London
IAD
Washington
S$749 Return, found 3 days ago
S$749
Return
found 3 days ago
Select Austrian Airlines flight, departing Sat, 21 Feb from London to Washington, returning Sat, 28 Feb, priced at S$749 found 3 days ago
British Airways
Sat, 21 Feb - Sat, 28 Feb
LHR
London
IAD
Washington
S$779 Return, found 3 days ago
S$779
Return
found 3 days ago
Select British Airways flight, departing Sat, 21 Feb from London to Washington, returning Sat, 28 Feb, priced at S$779 found 3 days ago
Air Canada
Sat, 21 Feb - Sat, 28 Feb
LHR
London
IAD
Washington
S$781 Return, found 3 days ago
S$781
Return
found 3 days ago
Select Air Canada flight, departing Sat, 21 Feb from London to Washington, returning Sat, 28 Feb, priced at S$781 found 3 days ago
Brussels Airlines
Fri, 6 Nov - Sun, 15 Nov
LHR
London
IAD
Washington
S$783 Return, found 1 day ago
S$783
Return
found 1 day ago
Select Brussels Airlines flight, departing Fri, 6 Nov from London to Washington, returning Sun, 15 Nov, priced at S$783 found 1 day 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.

Air China
Thu, 26 Mar - Fri, 10 Apr
SIN
Singapore
IAD
Washington
S$1,131 Return, found 6 days ago
S$1,131
Return
found 6 days ago
Select Air China flight, departing Thu, 26 Mar from Singapore to Washington, returning Fri, 10 Apr, priced at S$1,131 found 6 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 S$343.
How much is a flight to Frederick County?
One-way flights departing from San Francisco (SFO) sold for as little as S$165 in the last seven days. During this time, the cost of a return air ticket to Frederick County ranged between S$343 and S$1,131. 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.

When is the cheapest time to fly to Frederick County?
Jetting off on a Tuesday, followed by a Monday, is generally the best way to land the cheapest fare. Stay away from the weekends if possible, because Saturday is typically the most expensive day. Spend the money you saved having an awesome time in Frederick County instead!
How much is a plane ticket to Frederick County?
In the last seven days, tickets to Frederick County fluctuated from S$343 to S$1,131.
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

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.

Travel information

Frederick County Flights Information

Airlines serving
Delta, United, American Airlines, Air China, Swiss International Air Lines, Austrian Airlines, Lufthansa, British Airways, Air Canada, Brussels Airlines
Roundtrip price
from S$343
Frederick County Flights Information

Explore a world of travel with Expedia

*Available to Expedia members.