| Alpena to Orthez | 3,900.46 mi (6,277.18 km) |
| Alpena to Orvault | 3,728.55 mi (6,000.52 km) |
| Alpena to Osny | 3,812.02 mi (6,134.85 km) |
| Alpena to Ostwald | 4,047.61 mi (6,514.00 km) |
| Alpena to Ouistreham | 3,713.81 mi (5,976.81 km) |
| Alpena to Oullins | 4,044.62 mi (6,509.19 km) |
| Alpena to Outreau | 3,736.64 mi (6,013.54 km) |
| Alpena to Oyonnax | 4,057.23 mi (6,529.48 km) |
| Alpena to Ozoir-la-Ferriere | 3,846.06 mi (6,189.64 km) |
| Alpena to Pace | 3,692.30 mi (5,942.19 km) |
| Alpena to Palaiseau | 3,831.45 mi (6,166.12 km) |
| Alpena to Pamiers | 4,014.54 mi (6,460.78 km) |
| Alpena to Panazol | 3,899.02 mi (6,274.86 km) |
| Alpena to Pantin | 3,830.99 mi (6,165.39 km) |
| Alpena to Paray-le-Monial | 3,988.89 mi (6,419.50 km) |
