| West Whittier-Los Nietos to Orangeburg (South Carolina) | 2,125.94 mi (3,421.36 km) |
| West Whittier-Los Nietos to Orangevale (California) | 369.78 mi (595.10 km) |
| West Whittier-Los Nietos to Orchards (Washington) | 842.84 mi (1,356.43 km) |
| West Whittier-Los Nietos to Orcutt (California) | 147.64 mi (237.60 km) |
| West Whittier-Los Nietos to Oregon (Ohio) | 1,949.11 mi (3,136.78 km) |
| West Whittier-Los Nietos to Oregon (Wisconsin) | 1,660.34 mi (2,672.07 km) |
| West Whittier-Los Nietos to Oregon City (Oregon) | 820.98 mi (1,321.24 km) |
| West Whittier-Los Nietos to Orem (Utah) | 559.92 mi (901.11 km) |
| West Whittier-Los Nietos to Orinda (California) | 354.42 mi (570.38 km) |
| West Whittier-Los Nietos to Orland Park (Illinois) | 1,721.33 mi (2,770.22 km) |
| West Whittier-Los Nietos to Orlando (Florida) | 2,191.37 mi (3,526.67 km) |
| West Whittier-Los Nietos to Ormond Beach (Florida) | 2,186.64 mi (3,519.06 km) |
| West Whittier-Los Nietos to Oro Valley (Arizona) | 423.78 mi (682.01 km) |
| West Whittier-Los Nietos to Oroville (California) | 427.82 mi (688.51 km) |
| West Whittier-Los Nietos to Oshkosh (Wisconsin) | 1,717.80 mi (2,764.53 km) |
