| Thatto Heath to Oswego (Illinois) | 3,825.35 mi (6,156.31 km) |
| Thatto Heath to Oswego (New York) | 3,293.76 mi (5,300.79 km) |
| Thatto Heath to Otsego (Minnesota) | 3,845.33 mi (6,188.47 km) |
| Thatto Heath to Ottawa (Illinois) | 3,859.29 mi (6,210.92 km) |
| Thatto Heath to Ottawa (Kansas) | 4,233.49 mi (6,813.14 km) |
| Thatto Heath to Ottumwa (Iowa) | 4,008.31 mi (6,450.75 km) |
| Thatto Heath to Overland (Missouri) | 4,046.83 mi (6,512.74 km) |
| Thatto Heath to Overland Park (Kansas) | 4,197.79 mi (6,755.69 km) |
| Thatto Heath to Overlea (Maryland) | 3,478.57 mi (5,598.21 km) |
| Thatto Heath to Oviedo (Florida) | 4,191.36 mi (6,745.34 km) |
| Thatto Heath to Owasso (Oklahoma) | 4,372.66 mi (7,037.12 km) |
| Thatto Heath to Owatonna (Minnesota) | 3,888.03 mi (6,257.17 km) |
| Thatto Heath to Owensboro (Kentucky) | 3,969.49 mi (6,388.27 km) |
| Thatto Heath to Owings Mills (Maryland) | 3,487.24 mi (5,612.17 km) |
| Thatto Heath to Owosso (Michigan) | 3,607.86 mi (5,806.29 km) |
