Best Western Plus Plaza Hotel Share: Hotels/Motels/Conference Centers Best Western Plus Plaza Hotel Visit Website 1900 Ken Pratt Blvd. Longmont, CO 80501 303-776-2000 303-678-7361 (fax) www.plazaconventioncenter.com About Map About 210 rooms. WIFI, Business Center, exercise room, outdoor pool. 55,000 sq. ft. event space. What's Nearby? Distance: 5 10 15 20 25 50 mi.