| Portsmouth to Timberwood Park (Texas) | 4,956.83 mi (7,977.25 km) |
| Portsmouth to Timonium (Maryland) | 3,598.90 mi (5,791.87 km) |
| Portsmouth to Tinley Park (Illinois) | 3,954.13 mi (6,363.55 km) |
| Portsmouth to Tinton Falls (New Jersey) | 3,459.36 mi (5,567.30 km) |
| Portsmouth to Tipp City (Ohio) | 3,884.50 mi (6,251.49 km) |
| Portsmouth to Titusville (Florida) | 4,283.24 mi (6,893.21 km) |
| Portsmouth to Toledo (Ohio) | 3,784.28 mi (6,090.21 km) |
| Portsmouth to Tomball (Texas) | 4,822.23 mi (7,760.63 km) |
| Portsmouth to Tonawanda (New York) | 3,538.79 mi (5,695.14 km) |
| Portsmouth to Tooele (Utah) | 4,887.50 mi (7,865.66 km) |
| Portsmouth to Topeka (Kansas) | 4,376.55 mi (7,043.38 km) |
| Portsmouth to Torrance (California) | 5,457.05 mi (8,782.28 km) |
| Portsmouth to Torrington (Connecticut) | 3,353.78 mi (5,397.38 km) |
| Portsmouth to Totowa (New Jersey) | 3,437.80 mi (5,532.60 km) |
| Portsmouth to Town 'n' Country (Florida) | 4,385.90 mi (7,058.42 km) |
