| Portishead to Oakley (California) | 5,241.74 mi (8,435.76 km) |
| Portishead to Oakton (Virginia) | 3,568.81 mi (5,743.44 km) |
| Portishead to Oakville (Missouri) | 4,112.12 mi (6,617.82 km) |
| Portishead to Oatfield (Oregon) | 4,846.01 mi (7,798.90 km) |
| Portishead to Ocala (Florida) | 4,229.29 mi (6,806.39 km) |
| Portishead to Ocean Acres (New Jersey) | 3,406.61 mi (5,482.41 km) |
| Portishead to Ocean City (New Jersey) | 3,440.58 mi (5,537.09 km) |
| Portishead to Ocean Pines (Maryland) | 3,502.13 mi (5,636.13 km) |
| Portishead to Ocean Pointe (Hawaii) | 7,188.11 mi (11,568.15 km) |
| Portishead to Ocean Springs (Mississippi) | 4,444.37 mi (7,152.52 km) |
| Portishead to Oceanside (California) | 5,371.47 mi (8,644.55 km) |
| Portishead to Oceanside (New York) | 3,341.75 mi (5,378.03 km) |
| Portishead to Ocoee (Florida) | 4,232.85 mi (6,812.11 km) |
| Portishead to Oconomowoc (Wisconsin) | 3,824.85 mi (6,155.50 km) |
| Portishead to Odenton (Maryland) | 3,535.91 mi (5,690.49 km) |
