| Rosa to Olympia Heights (Florida) | 5,063.49 mi (8,148.89 km) |
| Rosa to Omaha (Nebraska) | 4,964.25 mi (7,989.19 km) |
| Rosa to On Top of the World Designated Place (Florida) | 4,990.98 mi (8,032.20 km) |
| Rosa to Onalaska (Wisconsin) | 4,661.05 mi (7,501.23 km) |
| Rosa to Oneida (New York) | 4,091.35 mi (6,584.39 km) |
| Rosa to Oneonta (New York) | 4,091.92 mi (6,585.31 km) |
| Rosa to Ontario (California) | 6,084.95 mi (9,792.77 km) |
| Rosa to Ontario (Oregon) | 5,488.41 mi (8,832.75 km) |
| Rosa to Opa-locka (Florida) | 5,051.38 mi (8,129.41 km) |
| Rosa to Opelika (Alabama) | 4,957.08 mi (7,977.65 km) |
| Rosa to Opelousas (Louisiana) | 5,341.67 mi (8,596.58 km) |
| Rosa to Orange (California) | 6,105.31 mi (9,825.54 km) |
| Rosa to Orange (Texas) | 5,430.94 mi (8,740.25 km) |
| Rosa to Orange City (Florida) | 4,954.80 mi (7,973.99 km) |
| Rosa to Orangeburg (South Carolina) | 4,725.24 mi (7,604.55 km) |
