| Warminster to Oswego (Illinois) | 3,914.50 mi (6,299.78 km) |
| Warminster to Oswego (New York) | 3,370.38 mi (5,424.10 km) |
| Warminster to Otsego (Minnesota) | 3,947.97 mi (6,353.65 km) |
| Warminster to Ottawa (Illinois) | 3,948.46 mi (6,354.43 km) |
| Warminster to Ottawa (Kansas) | 4,326.53 mi (6,962.87 km) |
| Warminster to Ottumwa (Iowa) | 4,101.72 mi (6,601.08 km) |
| Warminster to Overland (Missouri) | 4,133.08 mi (6,651.55 km) |
| Warminster to Overland Park (Kansas) | 4,290.52 mi (6,904.93 km) |
| Warminster to Overlea (Maryland) | 3,545.17 mi (5,705.40 km) |
| Warminster to Oviedo (Florida) | 4,242.62 mi (6,827.84 km) |
| Warminster to Owasso (Oklahoma) | 4,462.59 mi (7,181.85 km) |
| Warminster to Owatonna (Minnesota) | 3,988.07 mi (6,418.18 km) |
| Warminster to Owensboro (Kentucky) | 4,049.10 mi (6,516.39 km) |
| Warminster to Owings Mills (Maryland) | 3,554.39 mi (5,720.24 km) |
| Warminster to Owosso (Michigan) | 3,694.06 mi (5,945.02 km) |
