| Brecht to Olympia Heights (Florida) | 4,639.77 mi (7,466.99 km) |
| Brecht to Omaha (Nebraska) | 4,467.49 mi (7,189.73 km) |
| Brecht to On Top of the World Designated Place (Florida) | 4,549.45 mi (7,321.63 km) |
| Brecht to Onalaska (Wisconsin) | 4,165.64 mi (6,703.95 km) |
| Brecht to Oneida (New York) | 3,619.76 mi (5,825.44 km) |
| Brecht to Oneonta (New York) | 3,623.40 mi (5,831.30 km) |
| Brecht to Ontario (California) | 5,577.97 mi (8,976.88 km) |
| Brecht to Ontario (Oregon) | 4,981.47 mi (8,016.91 km) |
| Brecht to Opa-locka (Florida) | 4,627.30 mi (7,446.92 km) |
| Brecht to Opelika (Alabama) | 4,496.49 mi (7,236.40 km) |
| Brecht to Opelousas (Louisiana) | 4,871.26 mi (7,839.54 km) |
| Brecht to Orange (California) | 5,598.33 mi (9,009.64 km) |
| Brecht to Orange (Texas) | 4,957.82 mi (7,978.84 km) |
| Brecht to Orange City (Florida) | 4,516.77 mi (7,269.04 km) |
| Brecht to Orangeburg (South Carolina) | 4,273.20 mi (6,877.06 km) |
