| Ommen to Alfena | 1,047.22 mi (1,685.33 km) |
| Ommen to Alijo | 1,012.97 mi (1,630.21 km) |
| Ommen to Aljustrel | 1,228.40 mi (1,976.92 km) |
| Ommen to Almada | 1,211.48 mi (1,949.68 km) |
| Ommen to Almargem | 1,205.12 mi (1,939.45 km) |
| Ommen to Almeirim | 1,165.52 mi (1,875.72 km) |
| Ommen to Amadora | 1,210.60 mi (1,948.28 km) |
| Ommen to Amarante | 1,031.44 mi (1,659.95 km) |
| Ommen to Amares | 1,020.36 mi (1,642.11 km) |
| Ommen to Amora | 1,213.45 mi (1,952.86 km) |
| Ommen to Anadia | 1,089.41 mi (1,753.24 km) |
| Ommen to Angra do Heroismo | 1,862.64 mi (2,997.64 km) |
| Ommen to Ansiao | 1,118.82 mi (1,800.57 km) |
| Ommen to Anta | 1,063.10 mi (1,710.90 km) |
| Ommen to Arcos de Valdevez | 1,010.46 mi (1,626.18 km) |
