| Southborough to Harrison (Wisconsin) | 3,892.72 mi (6,264.73 km) |
| Southborough to Harrisonburg (Virginia) | 3,784.71 mi (6,090.90 km) |
| Southborough to Hartford (Connecticut) | 3,385.98 mi (5,449.20 km) |
| Southborough to Hartford (Wisconsin) | 3,935.65 mi (6,333.82 km) |
| Southborough to Hartselle (Alabama) | 4,300.62 mi (6,921.17 km) |
| Southborough to Hartsville (Tennessee) | 4,174.65 mi (6,718.44 km) |
| Southborough to Harvey (Illinois) | 3,987.16 mi (6,416.71 km) |
| Southborough to Harvey (Louisiana) | 4,653.97 mi (7,489.84 km) |
| Southborough to Hasbrouck Heights (New Jersey) | 3,481.30 mi (5,602.62 km) |
| Southborough to Haslett (Michigan) | 3,809.96 mi (6,131.53 km) |
| Southborough to Hastings (Minnesota) | 4,035.27 mi (6,494.14 km) |
| Southborough to Hastings (Nebraska) | 4,436.00 mi (7,139.05 km) |
| Southborough to Hattiesburg (Mississippi) | 4,551.88 mi (7,325.55 km) |
| Southborough to Hauppauge (New York) | 3,447.63 mi (5,548.42 km) |
| Southborough to Havelock (North Carolina) | 3,865.41 mi (6,220.78 km) |
