| Gland to Oswego (Illinois) | 4,413.07 mi (7,102.15 km) |
| Gland to Oswego (New York) | 3,859.69 mi (6,211.58 km) |
| Gland to Otsego (Minnesota) | 4,453.17 mi (7,166.68 km) |
| Gland to Ottawa (Illinois) | 4,447.01 mi (7,156.78 km) |
| Gland to Ottawa (Kansas) | 4,827.25 mi (7,768.71 km) |
| Gland to Ottumwa (Iowa) | 4,602.80 mi (7,407.50 km) |
| Gland to Overland (Missouri) | 4,629.39 mi (7,450.29 km) |
| Gland to Overland Park (Kansas) | 4,791.09 mi (7,710.51 km) |
| Gland to Overlea (Maryland) | 4,023.95 mi (6,475.93 km) |
| Gland to Oviedo (Florida) | 4,699.86 mi (7,563.69 km) |
| Gland to Owasso (Oklahoma) | 4,961.26 mi (7,984.37 km) |
| Gland to Owatonna (Minnesota) | 4,492.37 mi (7,229.78 km) |
| Gland to Owensboro (Kentucky) | 4,540.05 mi (7,306.51 km) |
| Gland to Owings Mills (Maryland) | 4,033.76 mi (6,491.72 km) |
| Gland to Owosso (Michigan) | 4,190.79 mi (6,744.42 km) |
