| Flensburg to Twist | 178.99 mi (288.05 km) |
| Flensburg to Twistringen | 140.65 mi (226.35 km) |
| Flensburg to Ubach-Palenberg | 300.53 mi (483.66 km) |
| Flensburg to Uberherrn | 399.46 mi (642.87 km) |
| Flensburg to Uberlingen | 484.84 mi (780.28 km) |
| Flensburg to Ubstadt-Weiher | 389.58 mi (626.96 km) |
| Flensburg to Ueckermunde | 199.38 mi (320.88 km) |
| Flensburg to Uelzen | 133.71 mi (215.19 km) |
| Flensburg to Uetersen | 76.22 mi (122.66 km) |
| Flensburg to Uetze | 163.06 mi (262.42 km) |
| Flensburg to Uhingen | 419.87 mi (675.72 km) |
| Flensburg to Ulm | 441.57 mi (710.63 km) |
| Flensburg to Unna | 235.74 mi (379.38 km) |
| Flensburg to Unterfohring | 465.15 mi (748.59 km) |
| Flensburg to Unterhaching | 473.33 mi (761.75 km) |
