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Flight to St. Mary's County

View S$151 flight on Thu, 8 Oct, 2026Opens in a new window

Popular airlines to St. Mary's County

  • Frontier Airlines

  • American Airlines

  • Delta

  • 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 S$151 for one-way flights and S$200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
American Airlines
Delta
Delta
Delta
Delta
Delta
United
Alaska Airlines
Air Canada

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.

Japan Airlines

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. S$200 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 (LGA), you could've picked up a low-cost fare for S$151 in the last seven days. Round-trip flights to St. Marys County ranged from S$200 to S$1,506 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 S$200 to S$1,506.
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

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.

Travel information

St. Mary's County Flights Information

Airlines serving
Delta, Southwest Airlines, American Airlines, United, Air Canada, Alaska Airlines
Roundtrip price
from S$200
St. Mary's County Flights Information
*Available to Expedia members.