| Baile Atha Luain to Oerlinghausen | 701.10 mi (1,128.32 km) |
| Baile Atha Luain to Oestrich-Winkel | 720.51 mi (1,159.54 km) |
| Baile Atha Luain to Offenburg | 769.06 mi (1,237.68 km) |
| Baile Atha Luain to Oftersheim | 763.33 mi (1,228.46 km) |
| Baile Atha Luain to Ohrdruf | 809.69 mi (1,303.07 km) |
| Baile Atha Luain to Ohringen | 805.31 mi (1,296.02 km) |
| Baile Atha Luain to Olbernhau | 920.29 mi (1,481.06 km) |
| Baile Atha Luain to Olching | 911.33 mi (1,466.65 km) |
| Baile Atha Luain to Oldenburg | 666.23 mi (1,072.20 km) |
| Baile Atha Luain to Oldenburg in Holstein | 767.18 mi (1,234.65 km) |
| Baile Atha Luain to Olfen | 652.98 mi (1,050.86 km) |
| Baile Atha Luain to Olpe | 686.60 mi (1,104.97 km) |
| Baile Atha Luain to Olsberg | 705.65 mi (1,135.63 km) |
| Baile Atha Luain to Oranienburg | 876.83 mi (1,411.12 km) |
| Baile Atha Luain to Ortenberg | 753.12 mi (1,212.03 km) |
