| Prospect Heights to Alenquer | 3,991.95 mi (6,424.42 km) |
| Prospect Heights to Alfena | 3,938.56 mi (6,338.50 km) |
| Prospect Heights to Alijo | 3,984.59 mi (6,412.59 km) |
| Prospect Heights to Aljustrel | 4,071.74 mi (6,552.82 km) |
| Prospect Heights to Almada | 3,998.43 mi (6,434.85 km) |
| Prospect Heights to Almargem | 3,987.29 mi (6,416.93 km) |
| Prospect Heights to Almeirim | 4,005.11 mi (6,445.60 km) |
| Prospect Heights to Amadora | 3,993.08 mi (6,426.25 km) |
| Prospect Heights to Amarante | 3,958.28 mi (6,370.24 km) |
| Prospect Heights to Amares | 3,934.32 mi (6,331.68 km) |
| Prospect Heights to Amora | 4,002.16 mi (6,440.85 km) |
| Prospect Heights to Anadia | 3,970.40 mi (6,389.75 km) |
| Prospect Heights to Angra do Heroismo | 3,136.32 mi (5,047.42 km) |
| Prospect Heights to Ansiao | 3,988.37 mi (6,418.66 km) |
| Prospect Heights to Anta | 3,941.94 mi (6,343.94 km) |
