| Shirley to Olympia Heights (Florida) | 4,441.17 mi (7,147.37 km) |
| Shirley to Omaha (Nebraska) | 4,298.17 mi (6,917.24 km) |
| Shirley to On Top of the World Designated Place (Florida) | 4,353.92 mi (7,006.96 km) |
| Shirley to Onalaska (Wisconsin) | 3,994.89 mi (6,429.16 km) |
| Shirley to Oneida (New York) | 3,433.17 mi (5,525.15 km) |
| Shirley to Oneonta (New York) | 3,435.51 mi (5,528.92 km) |
| Shirley to Ontario (California) | 5,428.86 mi (8,736.90 km) |
| Shirley to Ontario (Oregon) | 4,845.83 mi (7,798.61 km) |
| Shirley to Opa-locka (Florida) | 4,428.74 mi (7,127.38 km) |
| Shirley to Opelika (Alabama) | 4,306.04 mi (6,929.90 km) |
| Shirley to Opelousas (Louisiana) | 4,684.59 mi (7,539.12 km) |
| Shirley to Orange (California) | 5,449.26 mi (8,769.74 km) |
| Shirley to Orange (Texas) | 4,772.36 mi (7,680.37 km) |
| Shirley to Orange City (Florida) | 4,320.52 mi (6,953.20 km) |
| Shirley to Orangeburg (South Carolina) | 4,080.10 mi (6,566.29 km) |
