| Lake Barcroft to Oswego (Illinois) | 620.46 mi (998.54 km) |
| Lake Barcroft to Oswego (New York) | 319.67 mi (514.47 km) |
| Lake Barcroft to Otsego (Minnesota) | 951.22 mi (1,530.85 km) |
| Lake Barcroft to Ottawa (Illinois) | 639.88 mi (1,029.79 km) |
| Lake Barcroft to Ottawa (Kansas) | 974.51 mi (1,568.32 km) |
| Lake Barcroft to Ottumwa (Iowa) | 821.13 mi (1,321.48 km) |
| Lake Barcroft to Overland (Missouri) | 711.09 mi (1,144.39 km) |
| Lake Barcroft to Overland Park (Kansas) | 941.52 mi (1,515.23 km) |
| Lake Barcroft to Overlea (Maryland) | 49.34 mi (79.40 km) |
| Lake Barcroft to Oviedo (Florida) | 741.13 mi (1,192.73 km) |
| Lake Barcroft to Owasso (Oklahoma) | 1,035.95 mi (1,667.20 km) |
| Lake Barcroft to Owatonna (Minnesota) | 905.48 mi (1,457.23 km) |
| Lake Barcroft to Owensboro (Kentucky) | 544.97 mi (877.04 km) |
| Lake Barcroft to Owings Mills (Maryland) | 43.40 mi (69.85 km) |
| Lake Barcroft to Owosso (Michigan) | 464.72 mi (747.89 km) |
