| Swindon to Oberkirch | 484.50 mi (779.72 km) |
| Swindon to Obernburg am Main | 491.98 mi (791.77 km) |
| Swindon to Obernkirchen | 466.58 mi (750.89 km) |
| Swindon to Oberschleissheim | 635.30 mi (1,022.42 km) |
| Swindon to Oberstdorf | 611.51 mi (984.14 km) |
| Swindon to Obertraubling | 640.43 mi (1,030.68 km) |
| Swindon to Obertshausen | 474.23 mi (763.20 km) |
| Swindon to Oberursel | 460.69 mi (741.41 km) |
| Swindon to Ochsenfurt | 535.33 mi (861.52 km) |
| Swindon to Ochsenhausen | 574.86 mi (925.14 km) |
| Swindon to Ochtrup | 384.92 mi (619.46 km) |
| Swindon to Odenthal | 385.84 mi (620.95 km) |
| Swindon to Oelde | 425.35 mi (684.53 km) |
| Swindon to Oelsnitz | 610.75 mi (982.90 km) |
| Swindon to Oer-Erkenschwick | 387.36 mi (623.40 km) |
