Cheap Flights to Baltimore-Washington International Thurgood Marshall Airport

Looking for an affordable way into the Baltimore-Washington region? Discover cheap flights to BWI Thurgood Marshall Airport, known for its low fares and convenient access to both Baltimore and the nation’s capital.
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About BWI Thurgood Marshall Airport

BWI Thurgood Marshall Airport is located in Anne Arundel County, Maryland, about 9 to 10 miles south of downtown Baltimore and 30 to 32 miles northeast of Washington, D.C. Originally opened in 1950 as Friendship International Airport and renamed in 2005 to honor Supreme Court Justice Thurgood Marshall, the airport handled over 25 million passengers in 2025 and serves as a major focus city for Southwest Airlines.

Airport code

BWI (ICAO: KBWI)

Location

Anne Arundel County, Maryland, United States

Distance from Baltimore/DC

 Approximately 9–10 miles / 30–32 miles

Airlines serving BWI

Southwest Airlines (focus city), American, Delta, United, JetBlue, Spirit, Frontier, British Airways

Popular Routes to and from BWI

Southwest’s extensive domestic network anchors BWI’s route map, alongside scheduled and seasonal international connections.

Route Type

Popular Connections

Domestic
Chicago, Boston, Orlando, Atlanta, Fort Lauderdale

International

Toronto, London, Frankfurt (seasonal), Aruba (seasonal)

Best Time to Book Cheap Flights to BWI

Booking 4 to 8 weeks ahead generally works well for most routes into BWI. Demand rises around major Washington, D.C. events and national holidays like the Fourth of July, so booking further ahead is recommended during those periods.

What to See Near Baltimore and Washington, D.C.

Baltimore’s Inner Harbor offers museums, aquariums, and waterfront dining just a short drive from the airport, while Washington, D.C. provides access to the National Mall, Smithsonian museums, and the U.S. Capitol. The historic city of Annapolis, home to the U.S. Naval Academy, is also within easy reach of BWI.

Things to Know When Flying Into BWI

Southwest Airlines accounts for more than 70% of BWI’s passenger traffic, making it the airport’s dominant carrier.
BWI has one main terminal with five concourses (A through E), all connected post-security.
A dedicated BWI rail station about a mile from the terminal connects to Amtrak and MARC commuter rail service into both Baltimore and Washington.
BWI is generally the busiest of the three Baltimore-Washington area airports, alongside Reagan National and Dulles.

Why Book Your BWI Flights with Airline Tickets Services

Access to unpublished airfare deals
Help finding the best Southwest Airlines routing options
Assistance comparing BWI, Reagan National, and Dulles as departure points
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FAQs —Flights to BWI Thurgood Marshall Airport

BWI is a major focus city for Southwest Airlines, accounting for more than 70% of the airport's passenger traffic, and is also served by American, Delta, United, JetBlue, Spirit, Frontier, British Airways, and other carriers.

BWI is located about 9 to 10 miles south of downtown Baltimore and about 30 to 32 miles northeast of Washington, D.C.

Yes, along with Ronald Reagan Washington National Airport and Washington Dulles International Airport, BWI is one of three major airports serving the Baltimore-Washington metropolitan area, and it is typically the busiest of the three.

Yes, BWI offers international routes including scheduled service to Toronto and London, along with seasonal flights to destinations like Frankfurt and Aruba.

Booking 4 to 8 weeks ahead generally works well for most routes into BWI, with earlier booking recommended around major Washington, D.C. events and the Fourth of July.

The airport is named after Thurgood Marshall, a Baltimore native and the first African American justice on the U.S. Supreme Court, in recognition of his legacy.

Ready to Book Your Flight to BWI?

Start planning your trip today and explore the latest cheap flight deals to BWI Thurgood Marshall Airport tailored to your travel needs.

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