Getting to MSD (Rockville, MD) from: Baltimore/ Washington International Airport Washington Dulles International Airport Washington National Airport Capital Beltway (I-495) From Baltimore/Washington International Airport Distance: 42.12 miles Approximate Travel Time: 51 minutes 1. Take I-195 W. 2. Merge onto I-95 S via EXIT 4B toward Washington. 3. Merge onto I-495 W/Capital Beltway/I-495 OUTERLOOP via EXIT 27 toward Silver Spring. 4. Keep right to take I-270 N via EXIT 35 toward Frederick. 5. Merge onto I-270 LOCAL N via EXIT 6 toward MD-28/W Montgomery Ave. 6. Take the MD-28 W/W Montgomery Ave exit, EXIT 6B, toward Darnestown. 7. Turn slight right onto W Montgomery Ave/MD-28 W. 8. Turn slight right onto Research Blvd. MSD is located on the right at 1601 Research Blvd. From Washington Dulles International Airport Distance: 27.50 miles Approximate Travel Time: 36 minutes 1. Stay straight to go onto Dulles Airport Access Rd. 2. Merge onto VA-267 E toward I-495/Exit 18-19/VA-123/Baltimore/Richmond (Portions toll). 3. Merge onto I-495 N/Capital Beltway/I-495 INNERLOOP via EXIT 18 toward Baltimore (Crossing into Maryland). 4. Keep left to take I-270-SPUR N via EXIT 38 toward Rockville/Frederick. 5. I-270-SPUR N becomes I-270 N. 6. Merge onto I-270 LOCAL N via EXIT 6 toward MD-28/W Montgomery Ave. 7. Take the MD-28 W/W Montgomery Ave exit, EXIT 6B, toward Darnestown. 8. Turn slight right onto W Montgomery Ave/MD-28 W. 9. Turn slight right onto Research Blvd. MSD is located on the right at 1601 Research Blvd. From Washington National Airport Distance: 22.99 miles Approximate Travel Time: 32 minutes 1. Go straight toward Airport Exit/I-395/GW Parkway North/US-50 W/I-66/Washington. 2. Merge onto George Washington Memorial Pky N (Passing through District of Columbia, then crossing into Virginia). 3. Merge onto I-495 N/Capital Beltway/I-495 INNERLOOP (Crossing into Maryland). 4. Keep left to take I-270-SPUR N via EXIT 38 toward Rockville/Frederick. 5. I-270-SPUR N becomes I-270 N. 6. Merge onto I-270 LOCAL N via EXIT 6 toward MD-28/W Montgomery Ave. 7. Take the MD-28 W/W Montgomery Ave exit, EXIT 6B, toward Darnestown. 8. Turn slight right onto W Montgomery Ave/MD-28 W. 9. Turn slight right onto Research Blvd. MSD is located on the right at 1601 Research Blvd. From the Capital Beltway (I-495) 1. From the I-495 N/Capital Beltway, keep left to take I-270-SPUR N via EXIT 38 toward Rockville/Frederick. 5. I-270-SPUR N becomes I-270 N. 6. Merge onto I-270 LOCAL N via EXIT 6 toward MD-28/W Montgomery Ave. 7. Take the MD-28 W/W Montgomery Ave exit, EXIT 6B, toward Darnestown. 8. Turn slight right onto W Montgomery Ave/MD-28 W. 9. Turn slight right onto Research Blvd. MSD is located on the right at 1601 Research Blvd.