| Ada to Harrison (Wisconsin) | 4,837.71 mi (7,785.55 km) |
| Ada to Harrisonburg (Virginia) | 4,759.79 mi (7,660.14 km) |
| Ada to Hartford (Connecticut) | 4,361.83 mi (7,019.68 km) |
| Ada to Hartford (Wisconsin) | 4,883.53 mi (7,859.28 km) |
| Ada to Hartselle (Alabama) | 5,272.67 mi (8,485.54 km) |
| Ada to Hartsville (Tennessee) | 5,144.60 mi (8,279.44 km) |
| Ada to Harvey (Illinois) | 4,942.19 mi (7,953.68 km) |
| Ada to Harvey (Louisiana) | 5,628.24 mi (9,057.78 km) |
| Ada to Hasbrouck Heights (New Jersey) | 4,457.24 mi (7,173.24 km) |
| Ada to Haslett (Michigan) | 4,768.23 mi (7,673.72 km) |
| Ada to Hastings (Minnesota) | 4,965.89 mi (7,991.82 km) |
| Ada to Hastings (Nebraska) | 5,365.72 mi (8,635.30 km) |
| Ada to Hattiesburg (Mississippi) | 5,525.32 mi (8,892.14 km) |
| Ada to Hauppauge (New York) | 4,424.19 mi (7,120.04 km) |
| Ada to Havelock (North Carolina) | 4,843.92 mi (7,795.54 km) |
