| Mission Viejo to Arcos de Valdevez | 5,562.66 mi (8,952.24 km) |
| Mission Viejo to Arcozelo | 5,586.55 mi (8,990.69 km) |
| Mission Viejo to Arganil | 5,646.05 mi (9,086.44 km) |
| Mission Viejo to Arouca | 5,608.02 mi (9,025.24 km) |
| Mission Viejo to Arruda dos Vinhos | 5,654.91 mi (9,100.70 km) |
| Mission Viejo to Aveiro | 5,603.72 mi (9,018.32 km) |
| Mission Viejo to Aver-o-Mar | 5,566.68 mi (8,958.70 km) |
| Mission Viejo to Aves | 5,584.55 mi (8,987.46 km) |
| Mission Viejo to Azambuja | 5,659.99 mi (9,108.87 km) |
| Mission Viejo to Baiao | 5,607.01 mi (9,023.61 km) |
| Mission Viejo to Barcelos | 5,568.28 mi (8,961.28 km) |
| Mission Viejo to Barreiro | 5,668.12 mi (9,121.95 km) |
| Mission Viejo to Batalha | 5,638.46 mi (9,074.22 km) |
| Mission Viejo to Beja | 5,745.63 mi (9,246.70 km) |
| Mission Viejo to Belas | 5,654.78 mi (9,100.48 km) |
