| East Patchogue to Olympia Heights (Florida) | 1,122.07 mi (1,805.80 km) |
| East Patchogue to Omaha (Nebraska) | 1,199.70 mi (1,930.72 km) |
| East Patchogue to On Top of the World Designated Place (Florida) | 961.64 mi (1,547.60 km) |
| East Patchogue to Onalaska (Wisconsin) | 953.43 mi (1,534.41 km) |
| East Patchogue to Oneida (New York) | 210.65 mi (339.01 km) |
| East Patchogue to Oneonta (New York) | 158.57 mi (255.20 km) |
| East Patchogue to Ontario (California) | 2,465.88 mi (3,968.45 km) |
| East Patchogue to Ontario (Oregon) | 2,229.26 mi (3,587.65 km) |
| East Patchogue to Opa-locka (Florida) | 1,108.88 mi (1,784.57 km) |
| East Patchogue to Opelika (Alabama) | 884.58 mi (1,423.59 km) |
| East Patchogue to Opelousas (Louisiana) | 1,280.49 mi (2,060.75 km) |
| East Patchogue to Orange (California) | 2,483.85 mi (3,997.36 km) |
| East Patchogue to Orange (Texas) | 1,376.29 mi (2,214.92 km) |
| East Patchogue to Orange City (Florida) | 942.59 mi (1,516.95 km) |
| East Patchogue to Orangeburg (South Carolina) | 663.86 mi (1,068.39 km) |
