| Healdsburg to Nasaud | 6,167.95 mi (9,926.36 km) |
| Healdsburg to Navodari | 6,436.29 mi (10,358.20 km) |
| Healdsburg to Negresti-Oas | 6,111.75 mi (9,835.92 km) |
| Healdsburg to Nehoiu | 6,326.77 mi (10,181.95 km) |
| Healdsburg to Ocna Mures | 6,212.81 mi (9,998.56 km) |
| Healdsburg to Odobesti | 6,315.12 mi (10,163.21 km) |
| Healdsburg to Odorheiu Secuiesc | 6,246.49 mi (10,052.75 km) |
| Healdsburg to Oltenita | 6,413.50 mi (10,321.54 km) |
| Healdsburg to Onesti | 6,278.26 mi (10,103.88 km) |
| Healdsburg to Oradea | 6,130.11 mi (9,865.46 km) |
| Healdsburg to Orastie | 6,232.79 mi (10,030.70 km) |
| Healdsburg to Oravita | 6,250.24 mi (10,058.79 km) |
| Healdsburg to Orsova | 6,285.32 mi (10,115.24 km) |
| Healdsburg to Otelu Rosu | 6,235.31 mi (10,034.76 km) |
| Healdsburg to Otopeni | 6,372.96 mi (10,256.28 km) |
