| Cities | Distance |
|---|---|
| Opfikon to Nasaud | 740.18 mi (1,191.20 km) |
| Opfikon to Navodari | 985.01 mi (1,585.22 km) |
| Opfikon to Negresti-Oas | 691.12 mi (1,112.24 km) |
| Opfikon to Nehoiu | 855.48 mi (1,376.77 km) |
| Opfikon to Ocna Mures | 724.24 mi (1,165.55 km) |
| Opfikon to Odobesti | 883.63 mi (1,422.07 km) |
| Opfikon to Odorheiu Secuiesc | 792.67 mi (1,275.67 km) |
| Opfikon to Oltenita | 898.92 mi (1,446.67 km) |
| Opfikon to Onesti | 862.03 mi (1,387.30 km) |
| Opfikon to Oradea | 626.02 mi (1,007.49 km) |
| Opfikon to Orastie | 701.64 mi (1,129.18 km) |
| Opfikon to Oravita | 647.50 mi (1,042.05 km) |
| Opfikon to Orsova | 687.65 mi (1,106.67 km) |
| Opfikon to Otelu Rosu | 668.23 mi (1,075.41 km) |
| Opfikon to Otopeni | 861.50 mi (1,386.45 km) |