| Endwell to Olympia Heights (Florida) | 1,159.04 mi (1,865.29 km) |
| Endwell to Omaha (Nebraska) | 1,032.82 mi (1,662.17 km) |
| Endwell to On Top of the World Designated Place (Florida) | 964.77 mi (1,552.65 km) |
| Endwell to Onalaska (Wisconsin) | 775.85 mi (1,248.61 km) |
| Endwell to Oneida (New York) | 68.71 mi (110.57 km) |
| Endwell to Oneonta (New York) | 54.09 mi (87.05 km) |
| Endwell to Ontario (California) | 2,305.43 mi (3,710.22 km) |
| Endwell to Ontario (Oregon) | 2,049.91 mi (3,299.01 km) |
| Endwell to Opa-locka (Florida) | 1,146.12 mi (1,844.51 km) |
| Endwell to Opelika (Alabama) | 829.96 mi (1,335.70 km) |
| Endwell to Opelousas (Louisiana) | 1,196.61 mi (1,925.76 km) |
| Endwell to Orange (California) | 2,323.76 mi (3,739.73 km) |
| Endwell to Orange (Texas) | 1,286.50 mi (2,070.41 km) |
| Endwell to Orange City (Florida) | 957.30 mi (1,540.63 km) |
| Endwell to Orangeburg (South Carolina) | 651.73 mi (1,048.86 km) |
