| Danbury to Opwijk | 3,597.62 mi (5,789.82 km) |
| Danbury to Ostend | 3,540.02 mi (5,697.12 km) |
| Danbury to Oud-Heverlee | 3,620.61 mi (5,826.80 km) |
| Danbury to Oud-Turnhout | 3,620.82 mi (5,827.15 km) |
| Danbury to Oudenaarde | 3,576.96 mi (5,756.56 km) |
| Danbury to Oudenburg | 3,544.33 mi (5,704.04 km) |
| Danbury to Oupeye | 3,663.34 mi (5,895.57 km) |
| Danbury to Overijse | 3,616.51 mi (5,820.21 km) |
| Danbury to Overpelt | 3,640.78 mi (5,859.27 km) |
| Danbury to Paal | 3,635.64 mi (5,851.00 km) |
| Danbury to Peer | 3,644.46 mi (5,865.19 km) |
| Danbury to Pepinster | 3,674.15 mi (5,912.97 km) |
| Danbury to Peruwelz | 3,584.75 mi (5,769.10 km) |
| Danbury to Perwez | 3,632.08 mi (5,845.26 km) |
| Danbury to Philippeville | 3,632.46 mi (5,845.88 km) |
