| Thornton to Amelia | 1,013.65 mi (1,631.31 km) |
| Thornton to Anagni | 1,081.16 mi (1,739.96 km) |
| Thornton to Ancona | 988.47 mi (1,590.79 km) |
| Thornton to Andria | 1,206.62 mi (1,941.86 km) |
| Thornton to Angri | 1,180.09 mi (1,899.17 km) |
| Thornton to Anguillara Sabazia | 1,035.90 mi (1,667.12 km) |
| Thornton to Anzio | 1,082.83 mi (1,742.65 km) |
| Thornton to Anzola dell'Emilia | 866.32 mi (1,394.21 km) |
| Thornton to Aosta | 689.65 mi (1,109.89 km) |
| Thornton to Apricena | 1,149.09 mi (1,849.29 km) |
| Thornton to Aprilia | 1,075.59 mi (1,730.99 km) |
| Thornton to Aradeo | 1,324.69 mi (2,131.88 km) |
| Thornton to Aragona | 1,350.49 mi (2,173.40 km) |
| Thornton to Arco | 783.76 mi (1,261.34 km) |
| Thornton to Arcola | 852.65 mi (1,372.20 km) |
