| Ottawa to Ahrensfelde | 4,472.95 mi (7,198.51 km) |
| Ottawa to Aich | 4,475.42 mi (7,202.49 km) |
| Ottawa to Aichach | 4,553.09 mi (7,327.48 km) |
| Ottawa to Aidlingen | 4,460.42 mi (7,178.36 km) |
| Ottawa to Ainring | 4,646.22 mi (7,477.38 km) |
| Ottawa to Albstadt | 4,483.58 mi (7,215.62 km) |
| Ottawa to Aldenhoven | 4,278.89 mi (6,886.20 km) |
| Ottawa to Alfeld | 4,366.00 mi (7,026.39 km) |
| Ottawa to Alfter | 4,311.59 mi (6,938.83 km) |
| Ottawa to Alpen | 4,262.44 mi (6,859.73 km) |
| Ottawa to Alsbach-Hahnlein | 4,408.88 mi (7,095.41 km) |
| Ottawa to Alsdorf | 4,275.04 mi (6,880.02 km) |
| Ottawa to Alsfeld | 4,393.70 mi (7,070.97 km) |
| Ottawa to Altdorf | 4,584.66 mi (7,378.30 km) |
| Ottawa to Altena | 4,314.61 mi (6,943.69 km) |
