Baltimore/Washington Thurgood Marshall International Airport BWI is one of the top ten easiest U.S. Airports to get to, with a light rail station right in the terminal. In terms of airport service quality, Thurgood Marshall Airport was ranked first in the world by the Airports Council International in 2009, among airports serving 15-25 million passengers a year.The name Thurgood Marshall was added to the airport name in honor of its native son, the late Supreme Court Judge Thurgood Marshall.

The Airport is located about 10 miles outside of the city of Baltimore, Maryland, and is surrounded by highways I-695, 295, 100, I-97, and I-195 (directly into the terminal). It is situated between the cities of Baltimore and Washington, D.C., and serves both metropolitan areas.

With four runways and an estimated 21.9 million passengers a year, Baltimore/Washington International is a hub for AirTran Airways and is served by a host of airlines offering flights throughout the U.S., the Caribbean islands, Canada, and London, U.K., with connections to all points of the globe.
Note: 1. The Airport can now serve as port of entry for flights to/from Cuba (but is still restricted to 'purposeful' travel - passengers need to be either close relatives of Cuban residents, or be involved in the medical or agricultural business sectors, or travel for educational or religious purposes).  2. Condor Airlines willl offer nonstop flights to Frankfurt, Germany, starting July 2012.

The passenger terminal at BWI Airport is shaped like a horseshoe, with Concourses A through E surrounding it on the outside and with parking & transportation facilities in the center. Concourses A & B are connected to each other. (For detailed terminal information, click on 'Terminal Map'.)

Parking options at BWI Airport include the cell phone lot, the hourly and daily garages, the Express Parking lot and four long-term lots. (For detailed parking information, click on "Airport Parking".

To get from Baltimore/Wahington Airport to your destination, you have the option of renting a car, taking a taxi or limo, the Super Shuttle or Airport Shuttle, public bus or train. 
A free shuttle runs between the terminal complex and the BWI Marshall Rail Station (where you can pick up the MARC trains to Baltimore or Washington. This shuttle makes stops on the lower-level terminal roadway, between doors 1-2, 8-9, 14-15 & 17-18. 
Light Rail service (accessible from Main Terminal, lower level outside International Arrivals) runs from BWI Airport to downtown Baltimore, Timonium, and Hunt Valley. If you need to get to Penn Station, exit the train at Mt. Royal Avenue, and change to the Penn Station Light Rail.
The Bayrunner Shuttle serves Maryland's eastern shore (tel. 410912-6000), and western shore (tel. 301-898-2571 / 1-855-Bay-RUNR.
1. The ICC Bus 201 runs hourly, 9:05am-10:05pm daily, between the Airport and Gaithersburg Park & Ride lot at I-270 & M124 in Mongtomery Cty and makes stops at Burtonsville and Norbeck Park & Rides, and at Shaad Grove Metro, ending at BWI Rail Station. For more information visit mtaiccbus.
2. The Amtrak/MARC Station (tel. 410-672-6167) is located on Aviation Blvd, off I-195, while the Light Rail Station makes a stop at Elm Road. Light Rail service is available to downtown Baltimore, Timonium, and Hunt Valley. To go to Penn Station, exit the train at Mt. Royal Avenue and take the Penn Station Light Rail. There is only one fare for both trains at each way. Free shuttles take you to the MARC Train Station.
3. From Washington, DC--board MARC Trains at Washington's Union Station located at Massachusetts Ave. and First Street, NE. The Union Station ticket office is open daily from 5:30am-10:30pm. To contact the Union Station ticket office, call 202-906-3104.
3. From Baltimore City--board MARC trains at Baltimore's Penn Station located at 1500 North Charles Street. Penn Station is open from 5:30am-9:30pm. To contact Penn Station, call 410-291-4165.