Hotels

To obtain the necessary amount of meeting and exhibit space, COSM must commit to using a minimum number of guest rooms. If that commitment is not met, COSM will incur significant financial penalties and it will cause a major impact on the future programs that COSM is able to offer. By booking your room under the official COSM room block, you help COSM meet their hotel obligation. We thank you in advance for your assistance.

 


ADDITIONAL HOTELS NEAR THE GAYLORD NATIONAL RESORT & CONVENTION CENTER:

(Short walk)

The Westin Washington National Harbor
171 Waterfront Street, National Harbor, MD 20745
COSM Room rate:  $279 per night plus taxes
Hotel cut off date:  March 27, 2018, or when room block fills (whichever comes first)
MAKE A RESERVATION
Or, make a reservation by phone:1-888-627-8104 (reference “COSM”)


AC Hotel National Harbor Washington

156 Waterfront Street, National Harbor, MD 20745
COSM Room rate:  $247 Single/Double per night plus taxes
Hotel cut off date:  March 26, 2018, or when room block fills (whichever comes first)
MAKE A RESERVATION
Or, make a reservation by phone:1-888-236-2427 (reference “COSM”)


Residence Inn National Harbor Washington

192 Waterfront St, National Harbor, MD 20745
COSM Room rate:  $247 Single/Double per night plus taxes
Hotel cut off date:  March 26, 2018, or when room block fills (whichever comes first)
MAKE A RESERVATION
Or, make a reservation by phone:1-888- 236-2427 (reference “COSM”)


Hampton Inn & Suites National Harbor 

250 Waterfront St, National Harbor, MD 20745
COSM Room rate:  $269 per night plus taxes
Hotel cut off date:  March 18, 2018, or when room block fills (whichever comes first)
MAKE A RESERVATION
Or, make a reservation by phone:1-888-426-7866 (reference “COSM”)


(Short drive from Gaylord National Resort & Conference Center)

Harborside Hotel (2 miles)
6400 Oxon Hill Rd
Oxon Hill, MD 20745
cosm Rate: $225 Single, plus taxes
Hotel Cut off Date: March 26, 2018, or when room block sells out (whichever comes first)
MAKE A RESERVATION
Or, make a reservation by phone: 301-749-9400 (reference “COSM”)

MGM National Harbor (1.3 miles)
101 MGM National Ave
Oxon Hill, MD 20746
COSM Rate: $245 Single, plus taxes and daily resort fee
Hotel Cut off Date: March 26, 2018, or when room block sells out (whichever comes first)
MAKE A RESERVATION
Or, make a reservation by phone: 844-646-6847 (reference “COSM”)


HEADQUARTERS HOTEL (limited availability):
Gaylord National Resort and Convention Center

201 Waterfront Street, National Harbor, MD 20745
(301) 965-4000

COSM Room rate:  $247 Single/Double per night plus resort fee/taxes
Hotel cut off date:  March 26, 2018, or when room block fills (whichever comes first)

MAKE A RESERVATION
Or, make a reservation by phone: 877-491-0468


TRANSPORTATION