| Omagh to Alenquer | 1,076.72 mi (1,732.82 km) |
| Omagh to Alfena | 924.26 mi (1,487.45 km) |
| Omagh to Alijo | 919.94 mi (1,480.50 km) |
| Omagh to Aljustrel | 1,152.75 mi (1,855.17 km) |
| Omagh to Almada | 1,102.72 mi (1,774.66 km) |
| Omagh to Almargem | 1,091.63 mi (1,756.81 km) |
| Omagh to Almeirim | 1,065.14 mi (1,714.18 km) |
| Omagh to Amadora | 1,099.35 mi (1,769.24 km) |
| Omagh to Amarante | 921.24 mi (1,482.59 km) |
| Omagh to Amares | 897.63 mi (1,444.60 km) |
| Omagh to Amora | 1,106.29 mi (1,780.39 km) |
| Omagh to Anadia | 979.55 mi (1,576.44 km) |
| Omagh to Angra do Heroismo | 1,440.86 mi (2,318.85 km) |
| Omagh to Ansiao | 1,015.21 mi (1,633.82 km) |
| Omagh to Anta | 940.47 mi (1,513.54 km) |
