| Argentan to Navodari | 1,386.12 mi (2,230.74 km) |
| Argentan to Negresti-Oas | 1,074.87 mi (1,729.83 km) |
| Argentan to Nehoiu | 1,254.73 mi (2,019.29 km) |
| Argentan to Ocna Mures | 1,120.37 mi (1,803.06 km) |
| Argentan to Odobesti | 1,279.83 mi (2,059.68 km) |
| Argentan to Odorheiu Secuiesc | 1,187.60 mi (1,911.26 km) |
| Argentan to Oltenita | 1,302.60 mi (2,096.33 km) |
| Argentan to Onesti | 1,255.57 mi (2,020.65 km) |
| Argentan to Oradea | 1,019.17 mi (1,640.19 km) |
| Argentan to Orastie | 1,101.80 mi (1,773.18 km) |
| Argentan to Oravita | 1,052.38 mi (1,693.64 km) |
| Argentan to Orsova | 1,092.83 mi (1,758.73 km) |
| Argentan to Otelu Rosu | 1,070.87 mi (1,723.40 km) |
| Argentan to Otopeni | 1,264.26 mi (2,034.63 km) |
| Argentan to Ovidiu | 1,385.07 mi (2,229.05 km) |
