| Snoqualmie to Orbetello | 5,591.99 mi (8,999.44 km) |
| Snoqualmie to Oria | 5,866.49 mi (9,441.20 km) |
| Snoqualmie to Oristano | 5,673.21 mi (9,130.15 km) |
| Snoqualmie to Orta Nova | 5,770.11 mi (9,286.09 km) |
| Snoqualmie to Orte | 5,620.33 mi (9,045.04 km) |
| Snoqualmie to Ortona | 5,676.37 mi (9,135.24 km) |
| Snoqualmie to Orvieto | 5,597.91 mi (9,008.97 km) |
| Snoqualmie to Orzinuovi | 5,383.42 mi (8,663.78 km) |
| Snoqualmie to Osimo | 5,585.43 mi (8,988.89 km) |
| Snoqualmie to Ospitaletto | 5,377.71 mi (8,654.58 km) |
| Snoqualmie to Ostuni | 5,850.87 mi (9,416.06 km) |
| Snoqualmie to Ottaviano | 5,769.72 mi (9,285.46 km) |
| Snoqualmie to Ovada | 5,395.64 mi (8,683.45 km) |
| Snoqualmie to Ozieri | 5,644.30 mi (9,083.62 km) |
| Snoqualmie to Paceco | 5,894.78 mi (9,486.73 km) |
