| Carbondale to Olympia Heights (Florida) | 978.57 mi (1,574.85 km) |
| Carbondale to Omaha (Nebraska) | 438.46 mi (705.63 km) |
| Carbondale to On Top of the World Designated Place (Florida) | 716.75 mi (1,153.49 km) |
| Carbondale to Onalaska (Wisconsin) | 438.46 mi (705.63 km) |
| Carbondale to Oneida (New York) | 802.43 mi (1,291.39 km) |
| Carbondale to Oneonta (New York) | 815.34 mi (1,312.16 km) |
| Carbondale to Ontario (California) | 1,602.88 mi (2,579.58 km) |
| Carbondale to Ontario (Oregon) | 1,505.75 mi (2,423.28 km) |
| Carbondale to Opa-locka (Florida) | 970.70 mi (1,562.19 km) |
| Carbondale to Opelika (Alabama) | 411.55 mi (662.32 km) |
| Carbondale to Opelousas (Louisiana) | 523.35 mi (842.26 km) |
| Carbondale to Orange (California) | 1,619.57 mi (2,606.44 km) |
| Carbondale to Orange (Texas) | 585.77 mi (942.70 km) |
| Carbondale to Orange City (Florida) | 759.90 mi (1,222.94 km) |
| Carbondale to Orangeburg (South Carolina) | 552.60 mi (889.32 km) |
