| Sleaford to Orthez | 657.14 mi (1,057.56 km) |
| Sleaford to Orvault | 399.11 mi (642.30 km) |
| Sleaford to Osny | 292.46 mi (470.67 km) |
| Sleaford to Ostwald | 468.96 mi (754.72 km) |
| Sleaford to Ouistreham | 256.89 mi (413.43 km) |
| Sleaford to Oullins | 554.88 mi (893.00 km) |
| Sleaford to Outreau | 180.03 mi (289.73 km) |
| Sleaford to Oyonnax | 538.66 mi (866.89 km) |
| Sleaford to Ozoir-la-Ferriere | 321.03 mi (516.65 km) |
| Sleaford to Pace | 340.24 mi (547.57 km) |
| Sleaford to Palaiseau | 317.68 mi (511.26 km) |
| Sleaford to Pamiers | 688.91 mi (1,108.69 km) |
| Sleaford to Panazol | 500.50 mi (805.47 km) |
| Sleaford to Pantin | 308.55 mi (496.56 km) |
| Sleaford to Paray-le-Monial | 495.21 mi (796.97 km) |
