Flight Destinations in St. Mary's County

View ฿2,320 flight on Wed, 29 Apr 2026Opens in a new window

Popular airlines to St. Mary's County

  • Frontier Airlines

  • Delta

  • American Airlines

  • Southwest Airlines

  • United

  • Spirit Airlines

  • Alaska Airlines

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

Prices were available within the past 7 days and start at ฿2,320 for one-way flights and ฿5,150 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 30 Apr - Mon, 4 May
BOS
Boston
DCA
Washington
฿5,150 Return, found 2 days ago
฿5,150
Return
found 2 days ago
Select Delta flight, departing Thu, 30 Apr from Boston to Washington, returning Mon, 4 May, priced at ฿5,150 found 2 days ago
Delta
Sat, 18 Apr - Sun, 19 Apr
JFK
New York
DCA
Washington
฿5,150 Return, found 1 day ago
฿5,150
Return
found 1 day ago
Select Delta flight, departing Sat, 18 Apr from New York to Washington, returning Sun, 19 Apr, priced at ฿5,150 found 1 day ago
Delta
Thu, 9 Apr - Sat, 23 May
JFK
New York
DCA
Washington
฿5,645 Return, found 3 days ago
฿5,645
Return
found 3 days ago
Select Delta flight, departing Thu, 9 Apr from New York to Washington, returning Sat, 23 May, priced at ฿5,645 found 3 days ago
Delta
Sun, 3 May - Sun, 10 May
JFK
New York
DCA
Washington
฿5,745 Return, found 6 days ago
฿5,745
Return
found 6 days ago
Select Delta flight, departing Sun, 3 May from New York to Washington, returning Sun, 10 May, priced at ฿5,745 found 6 days ago
American Airlines
Sat, 18 Apr - Sun, 19 Apr
JFK
New York
DCA
Washington
฿7,445 Return, found 1 day ago
฿7,445
Return
found 1 day ago
Select American Airlines flight, departing Sat, 18 Apr from New York to Washington, returning Sun, 19 Apr, priced at ฿7,445 found 1 day ago
Delta
Mon, 13 Apr - Fri, 17 Apr
YYZ
Toronto
DCA
Washington
฿8,370 Return, found 1 day ago
฿8,370
Return
found 1 day ago
Select Delta flight, departing Mon, 13 Apr from Toronto to Washington, returning Fri, 17 Apr, priced at ฿8,370 found 1 day ago
United
Thu, 30 Apr - Mon, 4 May
BOS
Boston
DCA
Washington
฿9,080 Return, found 2 days ago
฿9,080
Return
found 2 days ago
Select United flight, departing Thu, 30 Apr from Boston to Washington, returning Mon, 4 May, priced at ฿9,080 found 2 days ago
Air Canada
Mon, 13 Apr - Fri, 17 Apr
YYZ
Toronto
DCA
Washington
฿10,175 Return, found 1 day ago
฿10,175
Return
found 1 day ago
Select Air Canada flight, departing Mon, 13 Apr from Toronto to Washington, returning Fri, 17 Apr, priced at ฿10,175 found 1 day ago
Air Canada
Fri, 1 May - Mon, 4 May
YOW
Ottawa
DCA
Washington
฿12,010 Return, found 22 hours ago
฿12,010
Return
found 22 hours ago
Select Air Canada flight, departing Fri, 1 May from Ottawa to Washington, returning Mon, 4 May, priced at ฿12,010 found 22 hours ago
EVA Airways
Thu, 21 May - Thu, 28 May
CNX
Chiang Mai
DCA
Washington
฿39,555 Return, found 1 day ago
฿39,555
Return
found 1 day ago
Select EVA Airways flight, departing Thu, 21 May from Chiang Mai to Washington, returning Thu, 28 May, priced at ฿39,555 found 1 day 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.

Delta
Fri, 11 Sept - Mon, 21 Sept
BKK
Bangkok
DCA
Washington
฿33,780 Return, found 13 hours ago
฿33,780
Return
found 13 hours ago
Select Delta flight, departing Fri, 11 Sept from Bangkok to Washington, returning Mon, 21 Sept, priced at ฿33,780 found 13 hours 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. ฿5,150 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 ฿2,320 in the last seven days. Round-trip flights to St. Marys County ranged from ฿5,150 to ฿39,555 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 ฿5,150 to ฿39,555.
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.

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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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