| Colmar to Olympia Heights (Florida) | 4,814.78 mi (7,748.64 km) |
| Colmar to Omaha (Nebraska) | 4,699.70 mi (7,563.43 km) |
| Colmar to On Top of the World Designated Place (Florida) | 4,736.76 mi (7,623.08 km) |
| Colmar to Onalaska (Wisconsin) | 4,396.44 mi (7,075.38 km) |
| Colmar to Oneida (New York) | 3,829.31 mi (6,162.68 km) |
| Colmar to Oneonta (New York) | 3,830.50 mi (6,164.59 km) |
| Colmar to Ontario (California) | 5,824.70 mi (9,373.94 km) |
| Colmar to Ontario (Oregon) | 5,233.54 mi (8,422.56 km) |
| Colmar to Opa-locka (Florida) | 4,802.55 mi (7,728.96 km) |
| Colmar to Opelika (Alabama) | 4,697.71 mi (7,560.24 km) |
| Colmar to Opelousas (Louisiana) | 5,080.15 mi (8,175.71 km) |
| Colmar to Orange (California) | 5,845.08 mi (9,406.74 km) |
| Colmar to Orange (Texas) | 5,168.89 mi (8,318.52 km) |
| Colmar to Orange City (Florida) | 4,701.60 mi (7,566.49 km) |
| Colmar to Orangeburg (South Carolina) | 4,467.98 mi (7,190.51 km) |
