| Garden Grove to Octeville | 5,482.29 mi (8,822.89 km) |
| Garden Grove to Oignies | 5,595.45 mi (9,005.01 km) |
| Garden Grove to Oissel | 5,587.08 mi (8,991.53 km) |
| Garden Grove to Olivet | 5,683.73 mi (9,147.09 km) |
| Garden Grove to Ollioules | 6,049.28 mi (9,735.37 km) |
| Garden Grove to Olonne-sur-Mer | 5,617.48 mi (9,040.47 km) |
| Garden Grove to Oloron-Sainte-Marie | 5,813.39 mi (9,355.75 km) |
| Garden Grove to Onet Village | 5,874.74 mi (9,454.49 km) |
| Garden Grove to Onnaing | 5,618.50 mi (9,042.09 km) |
| Garden Grove to Orange | 5,963.62 mi (9,597.52 km) |
| Garden Grove to Orchies | 5,603.13 mi (9,017.37 km) |
| Garden Grove to Orleans | 5,682.19 mi (9,144.60 km) |
| Garden Grove to Orly | 5,658.34 mi (9,106.22 km) |
| Garden Grove to Ormesson-sur-Marne | 5,661.14 mi (9,110.73 km) |
| Garden Grove to Orsay | 5,653.73 mi (9,098.81 km) |
