| Gallup to Nasaud | 6,023.46 mi (9,693.82 km) |
| Gallup to Navodari | 6,307.22 mi (10,150.49 km) |
| Gallup to Negresti-Oas | 5,963.59 mi (9,597.47 km) |
| Gallup to Nehoiu | 6,184.60 mi (9,953.16 km) |
| Gallup to Ocna Mures | 6,057.54 mi (9,748.67 km) |
| Gallup to Odobesti | 6,182.20 mi (9,949.28 km) |
| Gallup to Odorheiu Secuiesc | 6,102.51 mi (9,821.04 km) |
| Gallup to Oltenita | 6,265.63 mi (10,083.55 km) |
| Gallup to Onesti | 6,146.12 mi (9,891.23 km) |
| Gallup to Oradea | 5,964.23 mi (9,598.50 km) |
| Gallup to Orastie | 6,068.26 mi (9,765.92 km) |
| Gallup to Oravita | 6,067.45 mi (9,764.62 km) |
| Gallup to Orsova | 6,106.05 mi (9,826.73 km) |
| Gallup to Otelu Rosu | 6,061.47 mi (9,754.99 km) |
| Gallup to Otopeni | 6,223.33 mi (10,015.48 km) |
