| Harker Heights to Nasaud | 5,938.51 mi (9,557.11 km) |
| Harker Heights to Navodari | 6,226.42 mi (10,020.45 km) |
| Harker Heights to Negresti-Oas | 5,877.40 mi (9,458.76 km) |
| Harker Heights to Nehoiu | 6,096.30 mi (9,811.04 km) |
| Harker Heights to Ocna Mures | 5,961.84 mi (9,594.65 km) |
| Harker Heights to Odobesti | 6,102.19 mi (9,820.52 km) |
| Harker Heights to Odorheiu Secuiesc | 6,015.36 mi (9,680.79 km) |
| Harker Heights to Oltenita | 6,169.52 mi (9,928.88 km) |
| Harker Heights to Onesti | 6,068.04 mi (9,765.56 km) |
| Harker Heights to Oradea | 5,862.19 mi (9,434.28 km) |
| Harker Heights to Orastie | 5,963.94 mi (9,598.04 km) |
| Harker Heights to Oravita | 5,946.85 mi (9,570.53 km) |
| Harker Heights to Orsova | 5,987.30 mi (9,635.63 km) |
| Harker Heights to Otelu Rosu | 5,949.06 mi (9,574.09 km) |
| Harker Heights to Otopeni | 6,127.09 mi (9,860.60 km) |
