| Portsmouth to West St. Paul (Minnesota) | 4,000.20 mi (6,437.70 km) |
| Portsmouth to West University Place (Texas) | 4,834.14 mi (7,779.79 km) |
| Portsmouth to West Valley City (Utah) | 4,869.74 mi (7,837.09 km) |
| Portsmouth to West Whittier-Los Nietos (California) | 5,440.09 mi (8,754.98 km) |
| Portsmouth to Westbrook (Maine) | 3,164.55 mi (5,092.85 km) |
| Portsmouth to Westbury (New York) | 3,417.66 mi (5,500.19 km) |
| Portsmouth to Westchase (Florida) | 4,384.95 mi (7,056.90 km) |
| Portsmouth to Westchester (Florida) | 4,402.94 mi (7,085.84 km) |
| Portsmouth to Westchester (Illinois) | 3,944.57 mi (6,348.17 km) |
| Portsmouth to Western Springs (Illinois) | 3,947.10 mi (6,352.24 km) |
| Portsmouth to Westerville (Ohio) | 3,826.59 mi (6,158.29 km) |
| Portsmouth to Westfield (Indiana) | 3,959.53 mi (6,372.25 km) |
| Portsmouth to Westfield (Massachusetts) | 3,325.95 mi (5,352.60 km) |
| Portsmouth to Westfield (New Jersey) | 3,453.50 mi (5,557.87 km) |
| Portsmouth to Westlake (Ohio) | 3,727.85 mi (5,999.39 km) |
