| Sint-Gillis-bij-Dendermonde to Olympia Heights (Florida) | 4,622.66 mi (7,439.45 km) |
| Sint-Gillis-bij-Dendermonde to Omaha (Nebraska) | 4,461.95 mi (7,180.81 km) |
| Sint-Gillis-bij-Dendermonde to On Top of the World Designated Place (Florida) | 4,534.25 mi (7,297.16 km) |
| Sint-Gillis-bij-Dendermonde to Onalaska (Wisconsin) | 4,159.65 mi (6,694.32 km) |
| Sint-Gillis-bij-Dendermonde to Oneida (New York) | 3,608.52 mi (5,807.35 km) |
| Sint-Gillis-bij-Dendermonde to Oneonta (New York) | 3,611.66 mi (5,812.40 km) |
| Sint-Gillis-bij-Dendermonde to Ontario (California) | 5,577.76 mi (8,976.54 km) |
| Sint-Gillis-bij-Dendermonde to Ontario (Oregon) | 4,984.21 mi (8,021.31 km) |
| Sint-Gillis-bij-Dendermonde to Opa-locka (Florida) | 4,610.23 mi (7,419.44 km) |
| Sint-Gillis-bij-Dendermonde to Opelika (Alabama) | 4,483.73 mi (7,215.87 km) |
| Sint-Gillis-bij-Dendermonde to Opelousas (Louisiana) | 4,860.07 mi (7,821.52 km) |
| Sint-Gillis-bij-Dendermonde to Orange (California) | 5,598.13 mi (9,009.32 km) |
| Sint-Gillis-bij-Dendermonde to Orange (Texas) | 4,947.09 mi (7,961.57 km) |
| Sint-Gillis-bij-Dendermonde to Orange City (Florida) | 4,501.16 mi (7,243.92 km) |
| Sint-Gillis-bij-Dendermonde to Orangeburg (South Carolina) | 4,259.23 mi (6,854.57 km) |
