| Castelo Branco to Oxford (Alabama) | 4,221.46 mi (6,793.78 km) |
| Castelo Branco to Oxford (Mississippi) | 4,373.70 mi (7,038.79 km) |
| Castelo Branco to Oxford (Ohio) | 3,968.63 mi (6,386.89 km) |
| Castelo Branco to Oxnard (California) | 5,721.55 mi (9,207.95 km) |
| Castelo Branco to Oxon Hill (Maryland) | 3,615.85 mi (5,819.16 km) |
| Castelo Branco to Ozark (Alabama) | 4,287.28 mi (6,899.71 km) |
| Castelo Branco to Ozark (Missouri) | 4,452.22 mi (7,165.15 km) |
| Castelo Branco to Pace (Florida) | 4,394.03 mi (7,071.51 km) |
| Castelo Branco to Pacific Grove (California) | 5,714.18 mi (9,196.09 km) |
| Castelo Branco to Pacifica (California) | 5,686.89 mi (9,152.16 km) |
| Castelo Branco to Paducah (Kentucky) | 4,234.86 mi (6,815.35 km) |
| Castelo Branco to Pahrump (Nevada) | 5,494.63 mi (8,842.76 km) |
| Castelo Branco to Painesville (Ohio) | 3,737.06 mi (6,014.21 km) |
| Castelo Branco to Palatine (Illinois) | 4,039.35 mi (6,500.71 km) |
| Castelo Branco to Palatka (Florida) | 4,150.84 mi (6,680.14 km) |
