| Dalfsen to Olympia Heights (Florida) | 4,688.22 mi (7,544.96 km) |
| Dalfsen to Omaha (Nebraska) | 4,477.50 mi (7,205.84 km) |
| Dalfsen to On Top of the World Designated Place (Florida) | 4,591.51 mi (7,389.32 km) |
| Dalfsen to Onalaska (Wisconsin) | 4,177.28 mi (6,722.69 km) |
| Dalfsen to Oneida (New York) | 3,649.10 mi (5,872.66 km) |
| Dalfsen to Oneonta (New York) | 3,654.41 mi (5,881.21 km) |
| Dalfsen to Ontario (California) | 5,570.02 mi (8,964.08 km) |
| Dalfsen to Ontario (Oregon) | 4,964.28 mi (7,989.23 km) |
| Dalfsen to Opa-locka (Florida) | 4,675.64 mi (7,524.72 km) |
| Dalfsen to Opelika (Alabama) | 4,530.37 mi (7,290.93 km) |
| Dalfsen to Opelousas (Louisiana) | 4,899.74 mi (7,885.37 km) |
| Dalfsen to Orange (California) | 5,590.32 mi (8,996.75 km) |
| Dalfsen to Orange (Texas) | 4,984.71 mi (8,022.12 km) |
| Dalfsen to Orange City (Florida) | 4,560.23 mi (7,338.98 km) |
| Dalfsen to Orangeburg (South Carolina) | 4,311.26 mi (6,938.31 km) |
