| Alken to Oakley (California) | 5,508.95 mi (8,865.80 km) |
| Alken to Oakton (Virginia) | 3,911.91 mi (6,295.61 km) |
| Alken to Oakville (Missouri) | 4,441.54 mi (7,147.97 km) |
| Alken to Oatfield (Oregon) | 5,093.35 mi (8,196.96 km) |
| Alken to Ocala (Florida) | 4,577.90 mi (7,367.41 km) |
| Alken to Ocean Acres (New Jersey) | 3,751.11 mi (6,036.82 km) |
| Alken to Ocean City (New Jersey) | 3,785.41 mi (6,092.03 km) |
| Alken to Ocean Pines (Maryland) | 3,847.55 mi (6,192.04 km) |
| Alken to Ocean Pointe (Hawaii) | 7,346.68 mi (11,823.34 km) |
| Alken to Ocean Springs (Mississippi) | 4,786.72 mi (7,703.48 km) |
| Alken to Oceanside (California) | 5,660.12 mi (9,109.09 km) |
| Alken to Oceanside (New York) | 3,685.63 mi (5,931.45 km) |
| Alken to Ocoee (Florida) | 4,582.16 mi (7,374.27 km) |
| Alken to Oconomowoc (Wisconsin) | 4,147.82 mi (6,675.28 km) |
| Alken to Odenton (Maryland) | 3,879.30 mi (6,243.13 km) |
