| Trumbull Center to Octeville | 3,383.48 mi (5,445.18 km) |
| Trumbull Center to Oignies | 3,556.84 mi (5,724.19 km) |
| Trumbull Center to Oissel | 3,505.59 mi (5,641.70 km) |
| Trumbull Center to Olivet | 3,577.53 mi (5,757.47 km) |
| Trumbull Center to Ollioules | 3,888.38 mi (6,257.74 km) |
| Trumbull Center to Olonne-sur-Mer | 3,451.66 mi (5,554.91 km) |
| Trumbull Center to Oloron-Sainte-Marie | 3,594.31 mi (5,784.49 km) |
| Trumbull Center to Onet Village | 3,705.30 mi (5,963.10 km) |
| Trumbull Center to Onnaing | 3,583.68 mi (5,767.37 km) |
| Trumbull Center to Orange | 3,810.91 mi (6,133.06 km) |
| Trumbull Center to Orchies | 3,566.99 mi (5,740.51 km) |
| Trumbull Center to Orleans | 3,576.87 mi (5,756.42 km) |
| Trumbull Center to Orly | 3,575.54 mi (5,754.27 km) |
| Trumbull Center to Ormesson-sur-Marne | 3,580.60 mi (5,762.41 km) |
| Trumbull Center to Orsay | 3,568.04 mi (5,742.20 km) |
