| Appleton to Orbetello | 983.71 mi (1,583.14 km) |
| Appleton to Oria | 1,293.45 mi (2,081.60 km) |
| Appleton to Oristano | 1,065.87 mi (1,715.35 km) |
| Appleton to Orta Nova | 1,185.23 mi (1,907.44 km) |
| Appleton to Orte | 1,017.92 mi (1,638.19 km) |
| Appleton to Ortona | 1,087.94 mi (1,750.88 km) |
| Appleton to Orvieto | 995.24 mi (1,601.68 km) |
| Appleton to Orzinuovi | 783.31 mi (1,260.61 km) |
| Appleton to Osimo | 998.30 mi (1,606.61 km) |
| Appleton to Ospitaletto | 779.74 mi (1,254.88 km) |
| Appleton to Ostuni | 1,279.43 mi (2,059.04 km) |
| Appleton to Ottaviano | 1,171.75 mi (1,885.75 km) |
| Appleton to Ovada | 785.32 mi (1,263.85 km) |
| Appleton to Ozieri | 1,033.65 mi (1,663.49 km) |
| Appleton to Paceco | 1,282.08 mi (2,063.31 km) |
