| Flensburg to Novi di Modena | 686.30 mi (1,104.49 km) |
| Flensburg to Novi Ligure | 693.10 mi (1,115.44 km) |
| Flensburg to Nuoro | 999.46 mi (1,608.48 km) |
| Flensburg to Occhiobello | 687.86 mi (1,107.00 km) |
| Flensburg to Oderzo | 636.23 mi (1,023.91 km) |
| Flensburg to Oggiono | 621.75 mi (1,000.62 km) |
| Flensburg to Olbia | 958.00 mi (1,541.75 km) |
| Flensburg to Oleggio | 635.39 mi (1,022.56 km) |
| Flensburg to Olgiate Comasco | 622.09 mi (1,001.15 km) |
| Flensburg to Olgiate Olona | 632.58 mi (1,018.03 km) |
| Flensburg to Omegna | 616.85 mi (992.72 km) |
| Flensburg to Opera | 649.45 mi (1,045.19 km) |
| Flensburg to Oppeano | 659.65 mi (1,061.60 km) |
| Flensburg to Orbassano | 680.57 mi (1,095.26 km) |
| Flensburg to Orbetello | 856.56 mi (1,378.50 km) |
