| Effingham to Orthez | 4,343.82 mi (6,990.71 km) |
| Effingham to Orvault | 4,183.47 mi (6,732.64 km) |
| Effingham to Osny | 4,276.16 mi (6,881.81 km) |
| Effingham to Ostwald | 4,516.05 mi (7,267.88 km) |
| Effingham to Ouistreham | 4,176.26 mi (6,721.04 km) |
| Effingham to Oullins | 4,502.74 mi (7,246.46 km) |
| Effingham to Outreau | 4,204.58 mi (6,766.61 km) |
| Effingham to Oyonnax | 4,517.85 mi (7,270.78 km) |
| Effingham to Ozoir-la-Ferriere | 4,310.08 mi (6,936.40 km) |
| Effingham to Pace | 4,149.80 mi (6,678.46 km) |
| Effingham to Palaiseau | 4,294.85 mi (6,911.90 km) |
| Effingham to Pamiers | 4,460.30 mi (7,178.17 km) |
| Effingham to Panazol | 4,353.07 mi (7,005.58 km) |
| Effingham to Pantin | 4,295.04 mi (6,912.20 km) |
| Effingham to Paray-le-Monial | 4,448.21 mi (7,158.70 km) |
