| Romeoville to Alenquer | 4,014.20 mi (6,460.24 km) |
| Romeoville to Alfena | 3,961.90 mi (6,376.05 km) |
| Romeoville to Alijo | 4,008.14 mi (6,450.48 km) |
| Romeoville to Aljustrel | 4,093.66 mi (6,588.11 km) |
| Romeoville to Almada | 4,020.49 mi (6,470.35 km) |
| Romeoville to Almargem | 4,009.41 mi (6,452.52 km) |
| Romeoville to Almeirim | 4,027.52 mi (6,481.66 km) |
| Romeoville to Amadora | 4,015.15 mi (6,461.76 km) |
| Romeoville to Amarante | 3,981.71 mi (6,407.95 km) |
| Romeoville to Amares | 3,957.86 mi (6,369.56 km) |
| Romeoville to Amora | 4,024.20 mi (6,476.33 km) |
| Romeoville to Anadia | 3,993.40 mi (6,426.75 km) |
| Romeoville to Angra do Heroismo | 3,154.46 mi (5,076.62 km) |
| Romeoville to Ansiao | 4,011.14 mi (6,455.30 km) |
| Romeoville to Anta | 3,965.15 mi (6,381.29 km) |
