| Isaszeg to Octeville | 969.42 mi (1,560.14 km) |
| Isaszeg to Oignies | 769.05 mi (1,237.67 km) |
| Isaszeg to Oissel | 846.35 mi (1,362.07 km) |
| Isaszeg to Olivet | 812.34 mi (1,307.33 km) |
| Isaszeg to Ollioules | 723.59 mi (1,164.50 km) |
| Isaszeg to Olonne-sur-Mer | 996.32 mi (1,603.42 km) |
| Isaszeg to Oloron-Sainte-Marie | 1,013.14 mi (1,630.50 km) |
| Isaszeg to Onet Village | 834.65 mi (1,343.25 km) |
| Isaszeg to Onnaing | 741.89 mi (1,193.95 km) |
| Isaszeg to Orange | 739.15 mi (1,189.55 km) |
| Isaszeg to Orchies | 758.23 mi (1,220.25 km) |
| Isaszeg to Orleans | 811.72 mi (1,306.34 km) |
| Isaszeg to Orly | 786.96 mi (1,266.48 km) |
| Isaszeg to Ormesson-sur-Marne | 780.32 mi (1,255.81 km) |
| Isaszeg to Orsay | 796.34 mi (1,281.59 km) |
