Cheap Flights to St. Mary's County from $74 (2026/2027)

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How Much Does it Cost To Fly To St. Mary's County?

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Tue, Jun 23 - Tue, Jun 23
BOS
Logan Intl.
DCA
Ronald Reagan Washington National
$132 Roundtrip, found 21 hours ago
$132
Roundtrip
found 21 hours ago
Select JetBlue Airways flight, departing Tue, Jun 23 from Logan Intl. to Ronald Reagan Washington National, returning Tue, Jun 23, priced at $132 found 21 hours ago
Fri, Jul 24 - Fri, Jul 31
JFK
John F. Kennedy Intl.
DCA
Ronald Reagan Washington National
$157 Roundtrip, just found
$157
Roundtrip
just found
Select JetBlue Airways flight, departing Fri, Jul 24 from John F. Kennedy Intl. to Ronald Reagan Washington National, returning Fri, Jul 31, priced at $157 just found
Wed, Jun 17 - Tue, Jun 23
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$169 Roundtrip, found 1 hour ago
$169
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Jun 17 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Tue, Jun 23, priced at $169 found 1 hour ago
Tue, Jun 9 - Tue, Jun 9
PBI
Palm Beach Intl.
DCA
Ronald Reagan Washington National
$176 Roundtrip, found 2 days ago
$176
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, Jun 9 from Palm Beach Intl. to Ronald Reagan Washington National, returning Tue, Jun 9, priced at $176 found 2 days ago
Wed, Aug 19 - Sat, Sep 5
SEA
Seattle - Tacoma Intl.
DCA
Ronald Reagan Washington National
$176 Roundtrip, found 1 day ago
$176
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Aug 19 from Seattle - Tacoma Intl. to Ronald Reagan Washington National, returning Sat, Sep 5, priced at $176 found 1 day ago
Tue, Jun 16 - Tue, Jun 16
FLL
Fort Lauderdale - Hollywood Intl.
DCA
Ronald Reagan Washington National
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Tue, Jun 16 from Fort Lauderdale - Hollywood Intl. to Ronald Reagan Washington National, returning Tue, Jun 16, priced at $192 found 1 day ago
Fri, Aug 21 - Mon, Aug 24
MSP
Minneapolis - St. Paul Intl.
DCA
Ronald Reagan Washington National
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Delta flight, departing Fri, Aug 21 from Minneapolis - St. Paul Intl. to Ronald Reagan Washington National, returning Mon, Aug 24, priced at $197 just found
Wed, Sep 2 - Sat, Sep 5
DFW
Dallas-Fort Worth Intl.
DCA
Ronald Reagan Washington National
$210 Roundtrip, found 3 days ago
$210
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, Sep 2 from Dallas-Fort Worth Intl. to Ronald Reagan Washington National, returning Sat, Sep 5, priced at $210 found 3 days ago
OriginDestinationTravel DatesFlights From*
BOSWashingtonAugust 12 to August 19$137
ATLWashingtonJune 17 to June 23$169
MIAWashingtonJune 12 to June 15$202
DFWWashingtonSeptember 2 to September 5$210
MCOWashingtonAugust 4 to August 4$222
LAXWashingtonAugust 27 to September 5$238
TPAWashingtonJuly 23 to July 27$249
DENWashingtonAugust 30 to September 2$296
SFOWashingtonAugust 6 to August 10$318
FCOWashingtonAugust 28 to October 6$813
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
MIAWashingtonMay 29 to May 30$254
MCOWashingtonMay 30 to June 4$301
BOSWashingtonMay 29 to May 31$313
TPAWashingtonMay 29 to June 1$320
DALWashingtonMay 29 to May 29$332
ATLWashingtonMay 29 to May 31$378
LAXWashingtonMay 29 to June 1$398
SFOWashingtonMay 29 to June 5$447
DENWashingtonMay 30 to June 10$485
FCOWashingtonMay 29 to June 12$868
*Prices include taxes and fees

Best St. Mary's County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
Kimpton Banneker Hotel by IHG
4.5-star property

Kimpton Banneker Hotel by IHG

Aug 14 - Aug 17

3 night stay

Atlanta (ATL) to Baltimore (BWI)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $454, price is now $306 per person
$306
per person
found 1 day ago
Eurostars Saint Gregory Dupont Circle Georgetown
4.0-star property

Eurostars Saint Gregory Dupont Circle Georgetown

Aug 14 - Aug 17

3 night stay

Atlanta (ATL) to Baltimore (BWI)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $494, price is now $320 per person
$320
per person
found 1 day ago
Sofitel Washington DC Lafayette Square
5.0-star property

Sofitel Washington DC Lafayette Square

Aug 14 - Aug 17

3 night stay

Atlanta (ATL) to Baltimore (BWI)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $541, price is now $365 per person
$365
per person
found 1 day ago
Don't see what you're looking for?
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Travelers ❤️ These St. Mary's County 🏨

avid hotel California - Lexington Park by IHG

avid hotel California - Lexington Park by IHG

3 out of 5
23274 Three Notch Road California MD
Book a stay at this business-friendly hotel in California. Enjoy free breakfast, free WiFi, and a fitness center. Popular attractions Wildewood Shopping Center and First Colony Shopping Center are located nearby.
9.4/10 Exceptional! (93 reviews)
"The building seemed rather new the rooms everything seemed rather new paint job furniture is very stylish. The staff was very kind and friendly, and the coffee was really good in the lobby. Only thing I don’t like is the stylishness of the room means they didn’t have anything that resembled resembled ..."

Reviewed on May 22, 2026

Opens in a new windowavid hotel California - Lexington Park by IHG
La Quinta Inn & Suites by Wyndham Lexington Park - Patuxent

La Quinta Inn & Suites by Wyndham Lexington Park - Patuxent

3 out of 5
22769 Three Notch Rd California MD
Book a stay at this business-friendly hotel in California. Enjoy free WiFi, free parking, and an outdoor pool. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions San Souci Shopping Center and Town Creek Park are located nearby.
7.8/10 Good! (1,000 reviews)
"It was a quick stay as I was only in town for one night. I was impressed by the friendliness of the staff. Everyone with whom I came into contact was smiling, helpful, warm, and welcoming. I particularly would like to mention Allen who was attending to the breakfast buffet. He was thorough and so ..."

Reviewed on May 16, 2026

Opens in a new windowLa Quinta Inn & Suites by Wyndham Lexington Park - Patuxent
Comfort Inn & Suites Lexington Park near Pax River

Comfort Inn & Suites Lexington Park near Pax River

2.5 out of 5
21885 Three Notch Rd Lexington Park MD
Book a stay at this business-friendly hotel in Lexington Park. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. Popular attractions Patuxent River Naval Air Museum and Dunleigh Neighborhood Park are located nearby.
8.6/10 Excellent! (702 reviews)
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Reviewed on May 16, 2026

Opens in a new windowComfort Inn & Suites Lexington Park near Pax River
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Island Inn & Suites, an Ascend Collection Hotel

Island Inn & Suites, an Ascend Collection Hotel

3 out of 5
16810 Piney Point Road Piney Point MD
Book a stay at this business-friendly hotel in Piney Point. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. Popular attractions Saint George Island Beach and Piney Point Beach are located nearby.
8.4/10 Very Good! (662 reviews)
"there was a open bottle left in our fridge but it was clean otherwise."

Reviewed on May 22, 2026

Opens in a new windowIsland Inn & Suites, an Ascend Collection Hotel
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

How much is the cheapest flight to St. Mary's County?
To give you a ballpark figure, the cheapest roundtrip flight to St. Mary's County cost $132 within the last seven days. An excellent way to snap up a travel bargain is to be flexible with your dates. This price was available on Travelocity for flights to St. Mary's County departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly to St. Mary's County?
Splurge more money on great experiences and less on your airfare by hopping on a plane to St. Mary's County in June. This is the most affordable month to jet off to this place based on Travelocity's direct return flight demand between January and December last year. Browse through our selection of flights and get away from it all without breaking your budget.
How can I check my flight status to St. Mary's County?
"Trips" is your one-stop shop when it comes to details about your flight to St. Mary's County. This handy portal lets you handle everything in the one place, from checking your flight status to updating or canceling your booking. Click on Trips at the top of the Travelocity homepage and then create a new account or sign in to an existing one. You can also download the Travelocity app and access your info while you're out and about. Whether you've got the family flying with you or you're a solo wanderer, all your bookings are right there in your pocket.
How do I find the best deals on flights to St. Mary's County?
Snap up an unbeatable deal with Travelocity — our "Flexible dates" feature makes the process easier. Enter your dates, then tap or click on the flexible dates box above your search results to compare prices for nearby days. $132 was the best price for a roundtrip flight to St. Mary's County in the last seven days. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to St. Mary's County with Travelocity?
Browse cheap flights to St. Mary's County with Travelocity and begin organizing your next getaway. With round-the-clock customer service throughout every stage of the process and a Price Match Guarantee, we take the hassle out of reserving cheap family flights, hotels, rental cars and more. Score a superb deal today and get set for a new adventure.
What are the most popular flight routes to St. Mary's County?
With good connections, organizing flights to St. Mary's County couldn't be simpler. Here's a selection of the most sought-after flight routes to this favorite destination:

  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Washington Dulles Intl. Airport (IAD) - 1,859 flights a month.
  • Charlotte, NC (CLT-Charlotte-Douglas Intl.) to Washington Dulles Intl. Airport (IAD) - 1,347 flights a month.
  • Detroit, MI (DTW-Detroit Metropolitan Wayne County) to Washington Dulles Intl. Airport (IAD) - 1,321 flights a month.

How much is a flight to St. Mary's County on average?
Passengers have booked roundtrip flights to St. Mary's County for between $132 and $868 with Travelocity in the last seven days. Whether you'd like to fly budget or first class, we'll help you get an incredible deal. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
How long is the average flight to St. Mary's County?
Where you fly from will mostly determine how many hours your direct flight to St. Mary's County will be. Here are a few of the popular routes to St. Mary's County and average flight times:

  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Washington Dulles Intl. Airport (IAD) - 1 hour and 47 minutes
  • Charlotte, NC (CLT-Charlotte-Douglas Intl.) to Washington Dulles Intl. Airport (IAD) - 1 hour and 29 minutes
  • Detroit, MI (DTW-Detroit Metropolitan Wayne County) to Washington Dulles Intl. Airport (IAD) - 1 hour and 29 minutes

What can I expect on a flight to St. Mary's County?
If you have a long-haul flight to St. Mary's County, you can usually expect drinks, meals and entertainment on board. Airlines aim to make longer flights as pleasant as possible. Shorter journeys — as well as flights offered by budget airlines — may not have such inclusions. If you're chasing cheap flights for family vacations with a budget carrier, it's likely you'll pay extra for things like drinks and snacks.