| Wheaton to Orbetello | 4,755.22 mi (7,652.79 km) |
| Wheaton to Oria | 5,096.18 mi (8,201.52 km) |
| Wheaton to Oristano | 4,754.55 mi (7,651.71 km) |
| Wheaton to Orta Nova | 4,982.84 mi (8,019.11 km) |
| Wheaton to Orte | 4,801.30 mi (7,726.95 km) |
| Wheaton to Ortona | 4,885.85 mi (7,863.02 km) |
| Wheaton to Orvieto | 4,779.23 mi (7,691.43 km) |
| Wheaton to Orzinuovi | 4,580.90 mi (7,372.24 km) |
| Wheaton to Osimo | 4,800.41 mi (7,725.51 km) |
| Wheaton to Ospitaletto | 4,580.00 mi (7,370.79 km) |
| Wheaton to Ostuni | 5,083.51 mi (8,181.12 km) |
| Wheaton to Ottaviano | 4,955.31 mi (7,974.80 km) |
| Wheaton to Ovada | 4,561.15 mi (7,340.46 km) |
| Wheaton to Ozieri | 4,743.22 mi (7,633.47 km) |
| Wheaton to Paceco | 5,003.58 mi (8,052.49 km) |
