| Luton to Nasaud | 1,150.04 mi (1,850.82 km) |
| Luton to Navodari | 1,425.86 mi (2,294.70 km) |
| Luton to Negresti-Oas | 1,091.61 mi (1,756.77 km) |
| Luton to Nehoiu | 1,292.21 mi (2,079.61 km) |
| Luton to Ocna Mures | 1,154.60 mi (1,858.16 km) |
| Luton to Odobesti | 1,310.28 mi (2,108.70 km) |
| Luton to Odorheiu Secuiesc | 1,217.82 mi (1,959.90 km) |
| Luton to Oltenita | 1,351.88 mi (2,175.63 km) |
| Luton to Onesti | 1,281.65 mi (2,062.62 km) |
| Luton to Oradea | 1,051.40 mi (1,692.06 km) |
| Luton to Orastie | 1,145.01 mi (1,842.72 km) |
| Luton to Oravita | 1,111.57 mi (1,788.90 km) |
| Luton to Orsova | 1,152.60 mi (1,854.93 km) |
| Luton to Otelu Rosu | 1,121.45 mi (1,804.80 km) |
| Luton to Otopeni | 1,311.03 mi (2,109.90 km) |
