| Celbridge to Navodari | 1,694.94 mi (2,727.74 km) |
| Celbridge to Negresti-Oas | 1,355.91 mi (2,182.12 km) |
| Celbridge to Nehoiu | 1,561.28 mi (2,512.63 km) |
| Celbridge to Ocna Mures | 1,423.56 mi (2,291.01 km) |
| Celbridge to Odobesti | 1,577.32 mi (2,538.46 km) |
| Celbridge to Odorheiu Secuiesc | 1,485.32 mi (2,390.40 km) |
| Celbridge to Oltenita | 1,623.46 mi (2,612.70 km) |
| Celbridge to Onesti | 1,547.54 mi (2,490.52 km) |
| Celbridge to Oradea | 1,320.50 mi (2,125.14 km) |
| Celbridge to Orastie | 1,416.14 mi (2,279.05 km) |
| Celbridge to Oravita | 1,385.62 mi (2,229.93 km) |
| Celbridge to Orsova | 1,426.61 mi (2,295.91 km) |
| Celbridge to Otelu Rosu | 1,394.12 mi (2,243.62 km) |
| Celbridge to Otopeni | 1,582.22 mi (2,546.34 km) |
| Celbridge to Ovidiu | 1,694.74 mi (2,727.42 km) |
