| Gahanna to Orthez | 4,058.05 mi (6,530.80 km) |
| Gahanna to Orvault | 3,905.63 mi (6,285.50 km) |
| Gahanna to Osny | 4,006.17 mi (6,447.31 km) |
| Gahanna to Ostwald | 4,250.21 mi (6,840.05 km) |
| Gahanna to Ouistreham | 3,904.82 mi (6,284.20 km) |
| Gahanna to Oullins | 4,226.88 mi (6,802.50 km) |
| Gahanna to Outreau | 3,938.77 mi (6,338.84 km) |
| Gahanna to Oyonnax | 4,244.10 mi (6,830.23 km) |
| Gahanna to Ozoir-la-Ferriere | 4,039.90 mi (6,501.60 km) |
| Gahanna to Pace | 3,874.07 mi (6,234.72 km) |
| Gahanna to Palaiseau | 4,024.11 mi (6,476.18 km) |
| Gahanna to Pamiers | 4,175.76 mi (6,720.24 km) |
| Gahanna to Panazol | 4,074.27 mi (6,556.90 km) |
| Gahanna to Pantin | 4,024.93 mi (6,477.49 km) |
| Gahanna to Paray-le-Monial | 4,173.45 mi (6,716.52 km) |
