| Vaals to Olympia Heights (Florida) | 4,707.70 mi (7,576.31 km) |
| Vaals to Omaha (Nebraska) | 4,539.79 mi (7,306.09 km) |
| Vaals to On Top of the World Designated Place (Florida) | 4,618.91 mi (7,433.41 km) |
| Vaals to Onalaska (Wisconsin) | 4,237.97 mi (6,820.35 km) |
| Vaals to Oneida (New York) | 3,691.29 mi (5,940.55 km) |
| Vaals to Oneonta (New York) | 3,694.74 mi (5,946.11 km) |
| Vaals to Ontario (California) | 5,648.88 mi (9,091.00 km) |
| Vaals to Ontario (Oregon) | 5,050.80 mi (8,128.48 km) |
| Vaals to Opa-locka (Florida) | 4,695.26 mi (7,556.30 km) |
| Vaals to Opelika (Alabama) | 4,567.39 mi (7,350.51 km) |
| Vaals to Opelousas (Louisiana) | 4,942.82 mi (7,954.69 km) |
| Vaals to Orange (California) | 5,669.23 mi (9,123.74 km) |
| Vaals to Orange (Texas) | 5,029.53 mi (8,094.24 km) |
| Vaals to Orange City (Florida) | 4,585.93 mi (7,380.35 km) |
| Vaals to Orangeburg (South Carolina) | 4,343.46 mi (6,990.12 km) |
