| South Portland to Zrece | 3,973.62 mi (6,394.92 km) |
| South Portland to Zuzemberk | 3,974.29 mi (6,396.00 km) |
| South Portland to Abaran | 3,512.15 mi (5,652.26 km) |
| South Portland to Abrera | 3,555.29 mi (5,721.69 km) |
| South Portland to Acala del Rio | 3,317.34 mi (5,338.74 km) |
| South Portland to Adeje | 3,125.14 mi (5,029.43 km) |
| South Portland to Adra | 3,485.05 mi (5,608.65 km) |
| South Portland to Aguilar | 3,380.56 mi (5,440.48 km) |
| South Portland to Aguilas | 3,530.88 mi (5,682.40 km) |
| South Portland to Alacuas | 3,514.00 mi (5,655.24 km) |
| South Portland to Alayor | 3,710.88 mi (5,972.08 km) |
| South Portland to Albacete | 3,464.04 mi (5,574.84 km) |
| South Portland to Albal | 3,518.24 mi (5,662.07 km) |
| South Portland to Albatera | 3,538.13 mi (5,694.08 km) |
| South Portland to Alberique | 3,522.70 mi (5,669.23 km) |
