| Boulder to Amelia | 5,530.32 mi (8,900.20 km) |
| Boulder to Anagni | 5,597.01 mi (9,007.51 km) |
| Boulder to Ancona | 5,514.68 mi (8,875.02 km) |
| Boulder to Andria | 5,732.89 mi (9,226.19 km) |
| Boulder to Angri | 5,697.84 mi (9,169.79 km) |
| Boulder to Anguillara Sabazia | 5,548.42 mi (8,929.33 km) |
| Boulder to Anzio | 5,593.16 mi (9,001.32 km) |
| Boulder to Anzola dell'Emilia | 5,388.59 mi (8,672.10 km) |
| Boulder to Aosta | 5,196.02 mi (8,362.19 km) |
| Boulder to Apricena | 5,674.72 mi (9,132.58 km) |
| Boulder to Aprilia | 5,587.08 mi (8,991.54 km) |
| Boulder to Aradeo | 5,852.21 mi (9,418.22 km) |
| Boulder to Aragona | 5,834.14 mi (9,389.13 km) |
| Boulder to Arco | 5,310.65 mi (8,546.66 km) |
| Boulder to Arcola | 5,364.52 mi (8,633.35 km) |
