| Ballwin to Orthez | 4,452.20 mi (7,165.13 km) |
| Ballwin to Orvault | 4,289.64 mi (6,903.51 km) |
| Ballwin to Osny | 4,380.00 mi (7,048.93 km) |
| Ballwin to Ostwald | 4,618.56 mi (7,432.85 km) |
| Ballwin to Ouistreham | 4,280.57 mi (6,888.91 km) |
| Ballwin to Oullins | 4,608.24 mi (7,416.25 km) |
| Ballwin to Outreau | 4,307.20 mi (6,931.78 km) |
| Ballwin to Oyonnax | 4,622.72 mi (7,439.55 km) |
| Ballwin to Ozoir-la-Ferriere | 4,413.97 mi (7,103.59 km) |
| Ballwin to Pace | 4,255.37 mi (6,848.36 km) |
| Ballwin to Palaiseau | 4,398.91 mi (7,079.37 km) |
| Ballwin to Pamiers | 4,568.32 mi (7,351.99 km) |
| Ballwin to Panazol | 4,459.47 mi (7,176.82 km) |
| Ballwin to Pantin | 4,398.92 mi (7,079.37 km) |
| Ballwin to Paray-le-Monial | 4,553.41 mi (7,328.00 km) |
