| Warfield to Oswego (Illinois) | 3,962.44 mi (6,376.94 km) |
| Warfield to Oswego (New York) | 3,422.05 mi (5,507.25 km) |
| Warfield to Otsego (Minnesota) | 3,990.97 mi (6,422.84 km) |
| Warfield to Ottawa (Illinois) | 3,996.40 mi (6,431.58 km) |
| Warfield to Ottawa (Kansas) | 4,373.20 mi (7,037.99 km) |
| Warfield to Ottumwa (Iowa) | 4,148.23 mi (6,675.93 km) |
| Warfield to Overland (Missouri) | 4,182.00 mi (6,730.28 km) |
| Warfield to Overland Park (Kansas) | 4,337.30 mi (6,980.21 km) |
| Warfield to Overlea (Maryland) | 3,599.49 mi (5,792.82 km) |
| Warfield to Oviedo (Florida) | 4,300.39 mi (6,920.82 km) |
| Warfield to Owasso (Oklahoma) | 4,510.36 mi (7,258.72 km) |
| Warfield to Owatonna (Minnesota) | 4,032.10 mi (6,489.04 km) |
| Warfield to Owensboro (Kentucky) | 4,100.04 mi (6,598.37 km) |
| Warfield to Owings Mills (Maryland) | 3,608.58 mi (5,807.45 km) |
| Warfield to Owosso (Michigan) | 3,742.93 mi (6,023.66 km) |
