| Omurtag to Alfena | 1,781.03 mi (2,866.30 km) |
| Omurtag to Alijo | 1,727.82 mi (2,780.65 km) |
| Omurtag to Aljustrel | 1,838.14 mi (2,958.20 km) |
| Omurtag to Almada | 1,868.74 mi (3,007.44 km) |
| Omurtag to Almargem | 1,870.34 mi (3,010.02 km) |
| Omurtag to Almeirim | 1,828.94 mi (2,943.40 km) |
| Omurtag to Amadora | 1,871.21 mi (3,011.43 km) |
| Omurtag to Amarante | 1,757.58 mi (2,828.55 km) |
| Omurtag to Amares | 1,764.45 mi (2,839.61 km) |
| Omurtag to Amora | 1,868.08 mi (3,006.39 km) |
| Omurtag to Anadia | 1,792.41 mi (2,884.60 km) |
| Omurtag to Angra do Heroismo | 2,770.74 mi (4,459.08 km) |
| Omurtag to Ansiao | 1,803.44 mi (2,902.35 km) |
| Omurtag to Anta | 1,790.46 mi (2,881.46 km) |
| Omurtag to Arcos de Valdevez | 1,764.61 mi (2,839.87 km) |
