| Union to Oststeinbek | 4,546.16 mi (7,316.34 km) |
| Union to Ottendorf-Okrilla | 4,765.67 mi (7,669.61 km) |
| Union to Ottersberg | 4,527.14 mi (7,285.73 km) |
| Union to Ottobrunn | 4,812.23 mi (7,744.54 km) |
| Union to Ottweiler | 4,591.87 mi (7,389.90 km) |
| Union to Overath | 4,538.91 mi (7,304.67 km) |
| Union to Oyten | 4,523.92 mi (7,280.54 km) |
| Union to Paderborn | 4,563.95 mi (7,344.98 km) |
| Union to Papenburg | 4,466.44 mi (7,188.04 km) |
| Union to Parchim | 4,608.35 mi (7,416.43 km) |
| Union to Pasewalk | 4,678.60 mi (7,529.48 km) |
| Union to Passau | 4,858.62 mi (7,819.20 km) |
| Union to Pattensen | 4,579.84 mi (7,370.53 km) |
| Union to Pegnitz | 4,740.58 mi (7,629.22 km) |
| Union to Peine | 4,594.38 mi (7,393.94 km) |
