| Howard to Nasaud | 4,884.21 mi (7,860.38 km) |
| Howard to Navodari | 5,171.95 mi (8,323.45 km) |
| Howard to Negresti-Oas | 4,823.22 mi (7,762.23 km) |
| Howard to Nehoiu | 5,043.31 mi (8,116.42 km) |
| Howard to Ocna Mures | 4,910.37 mi (7,902.48 km) |
| Howard to Odobesti | 5,047.18 mi (8,122.65 km) |
| Howard to Odorheiu Secuiesc | 4,961.84 mi (7,985.30 km) |
| Howard to Oltenita | 5,118.82 mi (8,237.94 km) |
| Howard to Onesti | 5,012.48 mi (8,066.80 km) |
| Howard to Oradea | 4,812.16 mi (7,744.42 km) |
| Howard to Orastie | 4,914.89 mi (7,909.76 km) |
| Howard to Oravita | 4,902.76 mi (7,890.23 km) |
| Howard to Orsova | 4,942.75 mi (7,954.58 km) |
| Howard to Otelu Rosu | 4,902.38 mi (7,889.62 km) |
| Howard to Otopeni | 5,076.29 mi (8,169.50 km) |
