| Ottawa to Acqui Terme | 4,603.18 mi (7,408.11 km) |
| Ottawa to Acri | 5,142.99 mi (8,276.85 km) |
| Ottawa to Adelfia | 5,093.90 mi (8,197.83 km) |
| Ottawa to Adrano | 5,163.07 mi (8,309.16 km) |
| Ottawa to Adria | 4,728.42 mi (7,609.66 km) |
| Ottawa to Afragola | 4,996.50 mi (8,041.10 km) |
| Ottawa to Agliana | 4,735.67 mi (7,621.33 km) |
| Ottawa to Agrate Brianza | 4,601.28 mi (7,405.04 km) |
| Ottawa to Agrigento | 5,126.80 mi (8,250.79 km) |
| Ottawa to Agropoli | 5,048.46 mi (8,124.72 km) |
| Ottawa to Ala | 4,658.61 mi (7,497.31 km) |
| Ottawa to Alassio | 4,618.44 mi (7,432.65 km) |
| Ottawa to Alatri | 4,921.93 mi (7,921.09 km) |
| Ottawa to Alba | 4,584.85 mi (7,378.60 km) |
| Ottawa to Albano Laziale | 4,894.53 mi (7,876.99 km) |
