| Omagh to Arcos de Valdevez | 881.94 mi (1,419.35 km) |
| Omagh to Arcozelo | 937.19 mi (1,508.26 km) |
| Omagh to Arganil | 993.64 mi (1,599.10 km) |
| Omagh to Arouca | 944.57 mi (1,520.14 km) |
| Omagh to Arruda dos Vinhos | 1,081.50 mi (1,740.51 km) |
| Omagh to Aveiro | 966.35 mi (1,555.18 km) |
| Omagh to Aver-o-Mar | 913.58 mi (1,470.27 km) |
| Omagh to Aves | 909.75 mi (1,464.10 km) |
| Omagh to Azambuja | 1,075.07 mi (1,730.16 km) |
| Omagh to Baiao | 928.09 mi (1,493.61 km) |
| Omagh to Barcelos | 905.31 mi (1,456.96 km) |
| Omagh to Barreiro | 1,103.33 mi (1,775.63 km) |
| Omagh to Batalha | 1,034.63 mi (1,665.08 km) |
| Omagh to Beja | 1,144.30 mi (1,841.57 km) |
| Omagh to Belas | 1,096.60 mi (1,764.81 km) |
