| Glen Carbon to Orthez | 4,420.86 mi (7,114.68 km) |
| Glen Carbon to Orvault | 4,258.88 mi (6,854.01 km) |
| Glen Carbon to Osny | 4,349.88 mi (7,000.45 km) |
| Glen Carbon to Ostwald | 4,588.80 mi (7,384.97 km) |
| Glen Carbon to Ouistreham | 4,250.31 mi (6,840.22 km) |
| Glen Carbon to Oullins | 4,577.67 mi (7,367.05 km) |
| Glen Carbon to Outreau | 4,277.41 mi (6,883.83 km) |
| Glen Carbon to Oyonnax | 4,592.32 mi (7,390.63 km) |
| Glen Carbon to Ozoir-la-Ferriere | 4,383.83 mi (7,055.10 km) |
| Glen Carbon to Pace | 4,224.78 mi (6,799.13 km) |
| Glen Carbon to Palaiseau | 4,368.73 mi (7,030.79 km) |
| Glen Carbon to Pamiers | 4,537.07 mi (7,301.71 km) |
| Glen Carbon to Panazol | 4,428.65 mi (7,127.22 km) |
| Glen Carbon to Pantin | 4,368.78 mi (7,030.88 km) |
| Glen Carbon to Paray-le-Monial | 4,522.92 mi (7,278.93 km) |
