| Haderslev to Navodari | 1,131.07 mi (1,820.29 km) |
| Haderslev to Negresti-Oas | 782.40 mi (1,259.15 km) |
| Haderslev to Nehoiu | 1,002.90 mi (1,614.01 km) |
| Haderslev to Ocna Mures | 871.90 mi (1,403.18 km) |
| Haderslev to Odobesti | 1,006.38 mi (1,619.61 km) |
| Haderslev to Odorheiu Secuiesc | 921.19 mi (1,482.52 km) |
| Haderslev to Oltenita | 1,080.59 mi (1,739.04 km) |
| Haderslev to Onesti | 971.91 mi (1,564.14 km) |
| Haderslev to Oradea | 777.06 mi (1,250.55 km) |
| Haderslev to Orastie | 881.05 mi (1,417.92 km) |
| Haderslev to Oravita | 884.40 mi (1,423.30 km) |
| Haderslev to Orsova | 921.64 mi (1,483.24 km) |
| Haderslev to Otelu Rosu | 875.18 mi (1,408.46 km) |
| Haderslev to Otopeni | 1,038.10 mi (1,670.65 km) |
| Haderslev to Ovidiu | 1,131.98 mi (1,821.75 km) |
