£44 Cheap Flights to St. Mary's County

View £44 flight on Wed, 6 May 2026Opens in a new window

Popular airlines to St. Mary's County

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  • 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 £44 for one-way flights and £88 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 23 Jun - Tue, 30 Jun
BOS
Boston
DCA
Washington
£88 Return, found 3 days ago
£88
Return
found 3 days ago
Select Delta flight, departing Tue, 23 Jun from Boston to Washington, returning Tue, 30 Jun, priced at £88 found 3 days ago
JetBlue Airways
Sat, 16 May - Sun, 17 May
JFK
New York
DCA
Washington
£130 Return, found 6 days ago
£130
Return
found 6 days ago
Select JetBlue Airways flight, departing Sat, 16 May from New York to Washington, returning Sun, 17 May, priced at £130 found 6 days ago
American Airlines
Thu, 25 Jun - Mon, 29 Jun
JFK
New York
DCA
Washington
£134 Return, found 1 day ago
£134
Return
found 1 day ago
Select American Airlines flight, departing Thu, 25 Jun from New York to Washington, returning Mon, 29 Jun, priced at £134 found 1 day ago
Delta
Tue, 19 May - Mon, 8 Jun
MIA
Miami
DCA
Washington
£164 Return, found 1 hour ago
£164
Return
found 1 hour ago
Select Delta flight, departing Tue, 19 May from Miami to Washington, returning Mon, 8 Jun, priced at £164 found 1 hour ago
United
Thu, 13 Aug - Fri, 14 Aug
EWR
New York
DCA
Washington
£186 Return, found 2 days ago
£186
Return
found 2 days ago
Select United flight, departing Thu, 13 Aug from New York to Washington, returning Fri, 14 Aug, priced at £186 found 2 days ago
Air Canada
Sun, 14 Jun - Sun, 21 Jun
YUL
Montreal
DCA
Washington
£214 Return, found 13 hours ago
£214
Return
found 13 hours ago
Select Air Canada flight, departing Sun, 14 Jun from Montreal to Washington, returning Sun, 21 Jun, priced at £214 found 13 hours ago
Iberia
Fri, 22 May - Sun, 31 May
DUB
Dublin
DCA
Washington
£464 Return, found 2 days ago
£464
Return
found 2 days ago
Select Iberia flight, departing Fri, 22 May from Dublin to Washington, returning Sun, 31 May, priced at £464 found 2 days ago
Alaska Airlines
Sat, 16 May - Sat, 23 May
ORD
Chicago
DCA
Washington
£471 Return, found 5 days ago
£471
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 16 May from Chicago to Washington, returning Sat, 23 May, priced at £471 found 5 days ago
KLM
Mon, 20 Apr - Thu, 30 Apr
DUB
Dublin
DCA
Washington
£472 Return, found 6 days ago
£472
Return
found 6 days ago
Select KLM flight, departing Mon, 20 Apr from Dublin to Washington, returning Thu, 30 Apr, priced at £472 found 6 days ago
Air France
Wed, 20 May - Thu, 28 May
DUB
Dublin
DCA
Washington
£479 Return, found 4 days ago
£479
Return
found 4 days ago
Select Air France flight, departing Wed, 20 May from Dublin to Washington, returning Thu, 28 May, priced at £479 found 4 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.

JetBlue Airways
Wed, 29 Apr - Mon, 4 May
LHR
London
DCA
Washington
£509 Return, just found
£509
Return
just found
Select JetBlue Airways flight, departing Wed, 29 Apr from London to Washington, returning Mon, 4 May, priced at £509 just found

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. £88 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 £44 in the last seven days. Round-trip flights to St. Marys County ranged from £88 to £509 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 £88 to £509.
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

Top tips for booking flights to St. Mary's County from UK

Get ready to fly to St. Mary's County

Prepare your luggage and book your flights to St. Mary's County with Expedia. We offer a seamless flight booking experience, with a wide range of St. Mary's County plane tickets to choose from. If you need help finding some of the best deals for cheap flights to St. Mary's County in 2026, we are always available to assist you. Book your flights to St. Mary's County today and let the adventure begin!

Find the best tickets to St. Mary's County

To find some of the best tickets to St. Mary's County in 2026, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to St. Mary's County or last-minute flights to St. Mary's County, you can filter and sort your search results, making it easy to find the ideal flight to St. Mary's County.

Airlines fly to St. Mary's County

There are 20 different airlines that fly to St. Mary's County including some of the most trusted names in the business. To book flights to St. Mary's County with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best St. Mary's County plane tickets.

Find the cheapest flights to St. Mary's County

By booking early you may find some of the best deals for St. Mary's County flights from the UK, including St. Mary's County direct flights. You can usually find affordable and cheap flights to St. Mary's County, whether one-way from £44 or round-trip from £88, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to St. Mary's County

Try searching for different St. Mary's County airports with Expedia to find some of the cheapest flights to St. Mary's County. Flights from Boston (BOS) to Washington (DCA) usually have the lowest price from £44.

Why book your flights to St. Mary's County with Expedia

Expedia offers great deals on St. Mary's County air fares from £44 to cater to every budget. Not only is Expedia one of the top platforms to book flights to St. Mary's County from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

 

*Prices and availability are subject to change. Additional terms apply.

Top tips for booking flights to St. Mary's County from UK

Travel information

St. Mary's County Flights Information

Airlines serving
JetBlue Airways, Delta, American Airlines, United, Air Canada, Iberia, Alaska Airlines, KLM, Air France
Roundtrip price
from £88
St. Mary's County Flights Information

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