| Efringen-Kirchen to Oria | 701.85 mi (1,129.53 km) |
| Efringen-Kirchen to Oristano | 537.88 mi (865.64 km) |
| Efringen-Kirchen to Orta Nova | 592.77 mi (953.97 km) |
| Efringen-Kirchen to Orte | 428.99 mi (690.39 km) |
| Efringen-Kirchen to Ortona | 495.45 mi (797.35 km) |
| Efringen-Kirchen to Orvieto | 406.46 mi (654.14 km) |
| Efringen-Kirchen to Orzinuovi | 192.21 mi (309.34 km) |
| Efringen-Kirchen to Osimo | 406.00 mi (653.40 km) |
| Efringen-Kirchen to Ospitaletto | 187.67 mi (302.02 km) |
| Efringen-Kirchen to Ostuni | 688.16 mi (1,107.49 km) |
| Efringen-Kirchen to Ottaviano | 580.96 mi (934.96 km) |
| Efringen-Kirchen to Ovada | 214.73 mi (345.57 km) |
| Efringen-Kirchen to Ozieri | 493.69 mi (794.52 km) |
| Efringen-Kirchen to Paceco | 714.04 mi (1,149.14 km) |
| Efringen-Kirchen to Pachino | 847.56 mi (1,364.01 km) |
