| Calexico to Nasaud | 6,376.72 mi (10,262.34 km) |
| Calexico to Navodari | 6,656.79 mi (10,713.06 km) |
| Calexico to Negresti-Oas | 6,317.75 mi (10,167.44 km) |
| Calexico to Nehoiu | 6,537.83 mi (10,521.62 km) |
| Calexico to Ocna Mures | 6,414.34 mi (10,322.88 km) |
| Calexico to Odobesti | 6,532.46 mi (10,512.97 km) |
| Calexico to Odorheiu Secuiesc | 6,455.95 mi (10,389.85 km) |
| Calexico to Oltenita | 6,621.01 mi (10,655.48 km) |
| Calexico to Onesti | 6,495.97 mi (10,454.25 km) |
| Calexico to Oradea | 6,323.91 mi (10,177.35 km) |
| Calexico to Orastie | 6,427.97 mi (10,344.81 km) |
| Calexico to Oravita | 6,432.68 mi (10,352.39 km) |
| Calexico to Orsova | 6,470.38 mi (10,413.07 km) |
| Calexico to Otelu Rosu | 6,423.98 mi (10,338.40 km) |
| Calexico to Otopeni | 6,579.08 mi (10,588.00 km) |
