| Galesburg to Odessa (Texas) | 912.47 mi (1,468.48 km) |
| Galesburg to Ogden (Utah) | 1,121.66 mi (1,805.13 km) |
| Galesburg to Oildale (California) | 1,594.36 mi (2,565.88 km) |
| Galesburg to Ojus (Florida) | 1,189.64 mi (1,914.54 km) |
| Galesburg to Okemos (Michigan) | 329.98 mi (531.05 km) |
| Galesburg to Oklahoma City (Oklahoma) | 541.54 mi (871.52 km) |
| Galesburg to Okmulgee (Oklahoma) | 478.56 mi (770.17 km) |
| Galesburg to Olathe (Kansas) | 275.36 mi (443.15 km) |
| Galesburg to Old Jamestown (Missouri) | 145.95 mi (234.88 km) |
| Galesburg to Oldsmar (Florida) | 992.43 mi (1,597.16 km) |
| Galesburg to Olean (New York) | 622.33 mi (1,001.55 km) |
| Galesburg to Olive Branch (Mississippi) | 414.84 mi (667.62 km) |
| Galesburg to Olivehurst (California) | 1,646.27 mi (2,649.41 km) |
| Galesburg to Olney (Maryland) | 713.92 mi (1,148.95 km) |
| Galesburg to Olympia (Washington) | 1,657.18 mi (2,666.97 km) |
