| Langgons to Navodari | 1,021.53 mi (1,643.99 km) |
| Langgons to Negresti-Oas | 689.50 mi (1,109.64 km) |
| Langgons to Nehoiu | 887.88 mi (1,428.90 km) |
| Langgons to Ocna Mures | 750.29 mi (1,207.48 km) |
| Langgons to Odobesti | 906.36 mi (1,458.65 km) |
| Langgons to Odorheiu Secuiesc | 813.80 mi (1,309.69 km) |
| Langgons to Oltenita | 948.16 mi (1,525.92 km) |
| Langgons to Onesti | 878.24 mi (1,413.39 km) |
| Langgons to Oradea | 647.08 mi (1,041.38 km) |
| Langgons to Orastie | 741.03 mi (1,192.57 km) |
| Langgons to Oravita | 711.09 mi (1,144.39 km) |
| Langgons to Orsova | 751.99 mi (1,210.21 km) |
| Langgons to Otelu Rosu | 718.64 mi (1,156.54 km) |
| Langgons to Otopeni | 907.10 mi (1,459.84 km) |
| Langgons to Ovidiu | 1,021.15 mi (1,643.39 km) |
