| Moss to Olympia Heights (Florida) | 4,737.08 mi (7,623.60 km) |
| Moss to Omaha (Nebraska) | 4,335.45 mi (6,977.23 km) |
| Moss to On Top of the World Designated Place (Florida) | 4,607.42 mi (7,414.92 km) |
| Moss to Onalaska (Wisconsin) | 4,046.55 mi (6,512.29 km) |
| Moss to Oneida (New York) | 3,612.35 mi (5,813.51 km) |
| Moss to Oneonta (New York) | 3,626.02 mi (5,835.52 km) |
| Moss to Ontario (California) | 5,335.88 mi (8,587.28 km) |
| Moss to Ontario (Oregon) | 4,695.61 mi (7,556.85 km) |
| Moss to Opa-locka (Florida) | 4,724.07 mi (7,602.66 km) |
| Moss to Opelika (Alabama) | 4,504.65 mi (7,249.53 km) |
| Moss to Opelousas (Louisiana) | 4,842.49 mi (7,793.23 km) |
| Moss to Orange (California) | 5,355.78 mi (8,619.29 km) |
| Moss to Orange (Texas) | 4,918.61 mi (7,915.73 km) |
| Moss to Orange City (Florida) | 4,583.86 mi (7,377.02 km) |
| Moss to Orangeburg (South Carolina) | 4,309.71 mi (6,935.80 km) |
