| Ionia to Orthez | 4,044.94 mi (6,509.70 km) |
| Ionia to Orvault | 3,877.81 mi (6,240.73 km) |
| Ionia to Osny | 3,965.28 mi (6,381.50 km) |
| Ionia to Ostwald | 4,202.82 mi (6,763.79 km) |
| Ionia to Ouistreham | 3,866.31 mi (6,222.22 km) |
| Ionia to Oullins | 4,195.34 mi (6,751.75 km) |
| Ionia to Outreau | 3,891.57 mi (6,262.87 km) |
| Ionia to Oyonnax | 4,209.02 mi (6,773.77 km) |
| Ionia to Ozoir-la-Ferriere | 3,999.28 mi (6,436.22 km) |
| Ionia to Pace | 3,842.65 mi (6,184.15 km) |
| Ionia to Palaiseau | 3,984.39 mi (6,412.26 km) |
| Ionia to Pamiers | 4,160.06 mi (6,694.97 km) |
| Ionia to Panazol | 4,047.96 mi (6,514.56 km) |
| Ionia to Pantin | 3,984.22 mi (6,411.98 km) |
| Ionia to Paray-le-Monial | 4,140.11 mi (6,662.86 km) |
