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Cheap flights to St. Mary's County

View €63 flight on Tue, 11 Aug 2026Opens in a new window

Popular airlines to St. Mary's County

  • Frontier Airlines

  • Delta

  • American Airlines

  • Alaska Airlines

  • United

  • Southwest 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 €63 for one-way flights and €137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 4 Jul - Sun, 5 Jul
LGA
New York
DCA
Washington
€137 Return, just found
€137
Return
just found
Select American Airlines flight, departing Sat, 4 Jul from New York to Washington, returning Sun, 5 Jul, priced at €137 just found
Delta
Sat, 4 Jul - Sun, 5 Jul
LGA
New York
DCA
Washington
€137 Return, just found
€137
Return
just found
Select Delta flight, departing Sat, 4 Jul from New York to Washington, returning Sun, 5 Jul, priced at €137 just found
American Airlines
Tue, 4 Aug - Mon, 10 Aug
JFK
New York
DCA
Washington
€137 Return, found 1 day ago
€137
Return
found 1 day ago
Select American Airlines flight, departing Tue, 4 Aug from New York to Washington, returning Mon, 10 Aug, priced at €137 found 1 day ago
American Airlines
Wed, 2 Sept - Sat, 5 Sept
FLL
Fort Lauderdale
DCA
Washington
€159 Return, found 7 hours ago
€159
Return
found 7 hours ago
Select American Airlines flight, departing Wed, 2 Sept from Fort Lauderdale to Washington, returning Sat, 5 Sept, priced at €159 found 7 hours ago
JetBlue Airways
Sat, 11 Jul - Mon, 13 Jul
JFK
New York
DCA
Washington
€162 Return, found 7 hours ago
€162
Return
found 7 hours ago
Select JetBlue Airways flight, departing Sat, 11 Jul from New York to Washington, returning Mon, 13 Jul, priced at €162 found 7 hours ago
JetBlue Airways
Tue, 30 Jun - Sat, 4 Jul
BOS
Boston
DCA
Washington
€166 Return, found 3 days ago
€166
Return
found 3 days ago
Select JetBlue Airways flight, departing Tue, 30 Jun from Boston to Washington, returning Sat, 4 Jul, priced at €166 found 3 days ago
Delta
Fri, 7 Aug - Sun, 16 Aug
EWR
New York
DCA
Washington
€183 Return, found 6 hours ago
€183
Return
found 6 hours ago
Select Delta flight, departing Fri, 7 Aug from New York to Washington, returning Sun, 16 Aug, priced at €183 found 6 hours ago
United
Fri, 7 Aug - Sun, 16 Aug
EWR
New York
DCA
Washington
€205 Return, found 6 hours ago
€205
Return
found 6 hours ago
Select United flight, departing Fri, 7 Aug from New York to Washington, returning Sun, 16 Aug, priced at €205 found 6 hours ago
American Airlines
Sat, 11 Jul - Mon, 13 Jul
ORD
Chicago
DCA
Washington
€215 Return, found 1 hour ago
€215
Return
found 1 hour ago
Select American Airlines flight, departing Sat, 11 Jul from Chicago to Washington, returning Mon, 13 Jul, priced at €215 found 1 hour ago
British Airways
Wed, 14 Oct - Wed, 21 Oct
OTP
Bucharest
DCA
Washington
€524 Return, found 1 day ago
€524
Return
found 1 day ago
Select British Airways flight, departing Wed, 14 Oct from Bucharest to Washington, returning Wed, 21 Oct, priced at €524 found 1 day ago
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.

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.

JetBlue Airways
Tue, 1 Sept - Tue, 8 Sept
DUB
Dublin
DCA
Washington
€456 Return, found 5 days ago
€456
Return
found 5 days ago
Select JetBlue Airways flight, departing Tue, 1 Sept from Dublin to Washington, returning Tue, 8 Sept, priced at €456 found 5 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. €137 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 Boston (BOS), you could've picked up a low-cost fare for €63 in the last seven days. Round-trip flights to St. Marys County ranged from €137 to €524 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 €137 to €524.
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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