Cheap Flights to St. Mary's County

View AU$124 flight on Tue, 8 Sept 2026Opens in a new window

Popular airlines to St. Mary's County

  • Frontier Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Alaska Airlines

  • British Airways

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Cheapest Flights to St. Mary's County

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, 16 June - Tue, 23 June
JFK
New York
DCA
Washington
AU$248 Return, found 23 hours ago
AU$248
Return
found 23 hours ago
Select American Airlines flight, departing Tue, 16 June from New York to Washington, returning Tue, 23 June, priced at AU$248 found 23 hours ago
Delta
Tue, 16 June - Tue, 23 June
JFK
New York
DCA
Washington
AU$248 Return, found 23 hours ago
AU$248
Return
found 23 hours ago
Select Delta flight, departing Tue, 16 June from New York to Washington, returning Tue, 23 June, priced at AU$248 found 23 hours ago
Alaska Airlines
Sat, 9 Jan - Wed, 20 Jan
LAX
Los Angeles
DCA
Washington
AU$305 Return, found 6 days ago
AU$305
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 9 Jan from Los Angeles to Washington, returning Wed, 20 Jan, priced at AU$305 found 6 days ago
Air Canada
Thu, 21 May - Mon, 25 May
YTZ
Toronto
DCA
Washington
AU$306 Return, found 4 days ago
AU$306
Return
found 4 days ago
Select Air Canada flight, departing Thu, 21 May from Toronto to Washington, returning Mon, 25 May, priced at AU$306 found 4 days ago
Air Canada
Thu, 21 May - Mon, 25 May
YYZ
Toronto
DCA
Washington
AU$319 Return, found 4 days ago
AU$319
Return
found 4 days ago
Select Air Canada flight, departing Thu, 21 May from Toronto to Washington, returning Mon, 25 May, priced at AU$319 found 4 days ago
JetBlue Airways
Sun, 31 May - Tue, 16 June
JFK
New York
DCA
Washington
AU$333 Return, found 2 days ago
AU$333
Return
found 2 days ago
Select JetBlue Airways flight, departing Sun, 31 May from New York to Washington, returning Tue, 16 June, priced at AU$333 found 2 days ago
American Airlines
Tue, 23 June - Wed, 1 July
TPA
Tampa
DCA
Washington
AU$358 Return, found 17 hours ago
AU$358
Return
found 17 hours ago
Select American Airlines flight, departing Tue, 23 June from Tampa to Washington, returning Wed, 1 July, priced at AU$358 found 17 hours ago
Delta
Tue, 16 June - Sun, 5 July
BUF
Buffalo
DCA
Washington
AU$363 Return, found 1 day ago
AU$363
Return
found 1 day ago
Select Delta flight, departing Tue, 16 June from Buffalo to Washington, returning Sun, 5 July, priced at AU$363 found 1 day ago
American Airlines
Sat, 30 May - Wed, 3 June
SFO
San Francisco
DCA
Washington
AU$483 Return, found 1 day ago
AU$483
Return
found 1 day ago
Select American Airlines flight, departing Sat, 30 May from San Francisco to Washington, returning Wed, 3 June, priced at AU$483 found 1 day ago
United
Thu, 4 June - Sun, 7 June
YYZ
Toronto
DCA
Washington
AU$531 Return, found 3 days ago
AU$531
Return
found 3 days ago
Select United flight, departing Thu, 4 June from Toronto to Washington, returning Sun, 7 June, priced at AU$531 found 3 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.

All Nippon Airways
Fri, 4 Sept - Fri, 11 Sept
SYD
Sydney
DCA
Washington
AU$2,041 Return, found 5 days ago
AU$2,041
Return
found 5 days ago
Select All Nippon Airways flight, departing Fri, 4 Sept from Sydney to Washington, returning Fri, 11 Sept, priced at AU$2,041 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. AU$248 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 AU$124 in the last seven days. Round-trip flights to St. Marys County ranged from AU$248 to AU$2,041 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.

When is the cheapest time to fly to St. Marys County?
Departing on a Tuesday, followed by a Monday, is generally the best way to get the cheapest deal. Stay away from the weekends if you can, because Saturday is typically the most expensive day. Spend the dollars you saved living it up in St. Marys County instead!
How much is a plane ticket to St. Marys County?
In the last seven days, fares to St. Marys County fluctuated from AU$248 to AU$2,041.
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

St. Mary's County Flights

When was the last time you embarked on a grand adventure? Whether it was last month or years ago, there’s never been a better time to start planning your next big trip. Book tickets to St. Mary's County today and get ready to build your travel itinerary, from exploring the area with your family to recharging in the change of scenery. During your stay, visit the must-see attractions, chow down on the local cuisine, and relish in a holiday state of mind. However you decide to spend your upcoming trip, we’re here to make your travel plans easy and affordable.

Book Your St. Mary's County Airfare

At Expedia.com.au, it’s simple to find cheap flights to St. Mary's County that won’t cause your wallet to flinch. Browse through our inventory of St. Mary's County flights and find airfare matching your preferred times and dates. Looking for a red-eye flight or an afternoon departure? Don’t worry, we’ve got you covered. You can even take advantage of our convenient My Scratchpad online feature, which lets you track your search results with ease. No more excuses; book your travel arrangements with us today to make your dream trip a reality.

St. Mary's County Flights

Travel information

St. Mary's County Flights Information

Airlines serving
American Airlines, Delta, Air Canada, Alaska Airlines, United, JetBlue Airways, WestJet
Roundtrip price
from AU$248
St. Mary's County Flights Information

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