| Sint-Joost-ten-Node to Olympia Heights (Florida) | 4,637.06 mi (7,462.63 km) |
| Sint-Joost-ten-Node to Omaha (Nebraska) | 4,478.54 mi (7,207.52 km) |
| Sint-Joost-ten-Node to On Top of the World Designated Place (Florida) | 4,549.20 mi (7,321.24 km) |
| Sint-Joost-ten-Node to Onalaska (Wisconsin) | 4,176.21 mi (6,720.97 km) |
| Sint-Joost-ten-Node to Oneida (New York) | 3,624.38 mi (5,832.87 km) |
| Sint-Joost-ten-Node to Oneonta (New York) | 3,627.42 mi (5,837.76 km) |
| Sint-Joost-ten-Node to Ontario (California) | 5,594.56 mi (9,003.57 km) |
| Sint-Joost-ten-Node to Ontario (Oregon) | 5,000.92 mi (8,048.21 km) |
| Sint-Joost-ten-Node to Opa-locka (Florida) | 4,624.64 mi (7,442.64 km) |
| Sint-Joost-ten-Node to Opelika (Alabama) | 4,499.28 mi (7,240.89 km) |
| Sint-Joost-ten-Node to Opelousas (Louisiana) | 4,875.92 mi (7,847.04 km) |
| Sint-Joost-ten-Node to Orange (California) | 5,614.93 mi (9,036.35 km) |
| Sint-Joost-ten-Node to Orange (Texas) | 4,963.03 mi (7,987.22 km) |
| Sint-Joost-ten-Node to Orange City (Florida) | 4,516.01 mi (7,267.81 km) |
| Sint-Joost-ten-Node to Orangeburg (South Carolina) | 4,274.50 mi (6,879.15 km) |
