Flight Destinations in St. Mary's County

View ฿2,555 flight on Tue, 23 Jun 2026Opens in a new window

Popular airlines to St. Mary's County

  • Frontier Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Alaska Airlines

  • JetBlue Airways

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Cheap round-trip flights to St. Mary's County

Prices were available within the past 7 days and start at ฿2,555 for one-way flights and ฿5,170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 18 Jun - Mon, 22 Jun
JFK
New York
DCA
Washington
฿5,170 Return, found 2 days ago
฿5,170
Return
found 2 days ago
Select Delta flight, departing Thu, 18 Jun from New York to Washington, returning Mon, 22 Jun, priced at ฿5,170 found 2 days ago
Delta
Fri, 26 Jun - Sun, 28 Jun
JFK
New York
DCA
Washington
฿5,505 Return, found 5 days ago
฿5,505
Return
found 5 days ago
Select Delta flight, departing Fri, 26 Jun from New York to Washington, returning Sun, 28 Jun, priced at ฿5,505 found 5 days ago
Delta
Thu, 4 Jun - Mon, 8 Jun
BOS
Boston
DCA
Washington
฿6,210 Return, found 3 hours ago
฿6,210
Return
found 3 hours ago
Select Delta flight, departing Thu, 4 Jun from Boston to Washington, returning Mon, 8 Jun, priced at ฿6,210 found 3 hours ago
Delta
Fri, 26 Jun - Sun, 28 Jun
LGA
New York
DCA
Washington
฿6,225 Return, found 5 days ago
฿6,225
Return
found 5 days ago
Select Delta flight, departing Fri, 26 Jun from New York to Washington, returning Sun, 28 Jun, priced at ฿6,225 found 5 days ago
American Airlines
Thu, 18 Jun - Mon, 22 Jun
JFK
New York
DCA
Washington
฿6,330 Return, found 2 days ago
฿6,330
Return
found 2 days ago
Select American Airlines flight, departing Thu, 18 Jun from New York to Washington, returning Mon, 22 Jun, priced at ฿6,330 found 2 days ago
Delta
Tue, 23 Jun - Wed, 1 Jul
MCO
Orlando
DCA
Washington
฿7,310 Return, found 5 days ago
฿7,310
Return
found 5 days ago
Select Delta flight, departing Tue, 23 Jun from Orlando to Washington, returning Wed, 1 Jul, priced at ฿7,310 found 5 days ago
American Airlines
Thu, 18 Jun - Mon, 22 Jun
JFK
New York
DCA
Washington
฿7,480 Return, found 2 days ago
฿7,480
Return
found 2 days ago
Select American Airlines flight, departing Thu, 18 Jun from New York to Washington, returning Mon, 22 Jun, priced at ฿7,480 found 2 days ago
United
Thu, 4 Jun - Mon, 8 Jun
BOS
Boston
DCA
Washington
฿9,135 Return, found 3 hours ago
฿9,135
Return
found 3 hours ago
Select United flight, departing Thu, 4 Jun from Boston to Washington, returning Mon, 8 Jun, priced at ฿9,135 found 3 hours ago
Finnair
Wed, 9 Dec - Sun, 20 Dec
MAD
Madrid
DCA
Washington
฿27,610 Return, found 2 days ago
฿27,610
Return
found 2 days ago
Select Finnair flight, departing Wed, 9 Dec from Madrid to Washington, returning Sun, 20 Dec, priced at ฿27,610 found 2 days ago
British Airways
Tue, 8 Dec - Sun, 20 Dec
MAD
Madrid
DCA
Washington
฿31,195 Return, found 2 days ago
฿31,195
Return
found 2 days ago
Select British Airways flight, departing Tue, 8 Dec from Madrid to Washington, returning Sun, 20 Dec, priced at ฿31,195 found 2 days ago

Trending flights to St. Mary's 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 Canada
Tue, 16 Jun - Sat, 12 Sept
BKK
Bangkok
DCA
Washington
฿38,980 Return, found 6 days ago
฿38,980
Return
found 6 days ago
Select Air Canada flight, departing Tue, 16 Jun from Bangkok to Washington, returning Sat, 12 Sept, priced at ฿38,980 found 6 days ago

Frequently asked questions

How do I find cheap flights to St. Marys County that have flexible change policies?
It's as easy as can be with Expedia. Firstly, type in your travel details and click the "Search" button. Step 2? Check the "No change fee" box below the "Flexible change policies" filter on the top left of your screen. Step 3. Reserve your cheap and flexible airfare to St. Marys County.
Which airlines fly to St. Marys County?
A variety of airlines fly to destinations in or near St. Marys County. Your next big adventure is a few clicks away with these popular carriers:

  • American Airlines - 7,501 flights to or near St. Marys 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 St. Marys 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 St. Marys 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 St. Marys County?
You'll always score an epic deal with Expedia, but our "flexible dates" feature makes it even easier. Enter your preferred flight date, then click on the flexible dates link above to see the cheapest prices for nearby days. ฿5,170 was the lowest price for a flight to St. Marys County in the last seven days.
How much is a flight to St. Marys County?
If you were flying one way from New York (JFK), you could've picked up a low-cost fare for ฿2,555 in the last seven days. Round-trip flights to St. Marys County ranged from ฿5,170 to ฿38,980 during this same period.
What are the most popular airports to fly into in St. Marys County?
Pack your suitcase and touch down at one of these leading St. Marys County airports:

  • 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 St. Marys County?
In the last seven days, fares to St. Marys County fluctuated from ฿5,170 to ฿38,980.
What is the best time to go to St. Marys County?
A nice time to visit St. Marys County, along with the exciting city of California, is over the lively months of May, July and September. Summer here begins June 20, and you can expect temperatures of between 21ºC and 27ºC if you visit then. This warmer weather is perfect for wandering around this city's attractions.
What months are the cheapest to book a flight to St. Marys County?
To grab an awesome deal to St. Marys County, try to book sometime in February when airfares are at their lowest. When's the most expensive time? In the United States, it's the month of December.

Book with confidence

About St. Mary's County

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