| Cohoes to Olympia Heights (Florida) | 1,236.32 mi (1,989.66 km) |
| Cohoes to Omaha (Nebraska) | 1,148.38 mi (1,848.13 km) |
| Cohoes to On Top of the World Designated Place (Florida) | 1,057.87 mi (1,702.48 km) |
| Cohoes to Onalaska (Wisconsin) | 881.23 mi (1,418.20 km) |
| Cohoes to Oneida (New York) | 101.08 mi (162.68 km) |
| Cohoes to Oneonta (New York) | 72.51 mi (116.69 km) |
| Cohoes to Ontario (California) | 2,423.22 mi (3,899.80 km) |
| Cohoes to Ontario (Oregon) | 2,148.70 mi (3,458.00 km) |
| Cohoes to Opa-locka (Florida) | 1,223.22 mi (1,968.57 km) |
| Cohoes to Opelika (Alabama) | 944.16 mi (1,519.47 km) |
| Cohoes to Opelousas (Louisiana) | 1,319.03 mi (2,122.77 km) |
| Cohoes to Orange (California) | 2,441.74 mi (3,929.60 km) |
| Cohoes to Orange (Texas) | 1,410.07 mi (2,269.28 km) |
| Cohoes to Orange City (Florida) | 1,045.02 mi (1,681.80 km) |
| Cohoes to Orangeburg (South Carolina) | 749.35 mi (1,205.97 km) |
