| Heemstede to Navodari | 1,226.01 mi (1,973.07 km) |
| Heemstede to Negresti-Oas | 885.89 mi (1,425.71 km) |
| Heemstede to Nehoiu | 1,092.45 mi (1,758.12 km) |
| Heemstede to Ocna Mures | 954.81 mi (1,536.62 km) |
| Heemstede to Odobesti | 1,107.63 mi (1,782.56 km) |
| Heemstede to Odorheiu Secuiesc | 1,015.82 mi (1,634.81 km) |
| Heemstede to Oltenita | 1,156.75 mi (1,861.61 km) |
| Heemstede to Onesti | 1,077.62 mi (1,734.26 km) |
| Heemstede to Oradea | 851.99 mi (1,371.14 km) |
| Heemstede to Orastie | 949.26 mi (1,527.69 km) |
| Heemstede to Oravita | 924.38 mi (1,487.65 km) |
| Heemstede to Orsova | 965.10 mi (1,553.17 km) |
| Heemstede to Otelu Rosu | 929.57 mi (1,496.00 km) |
| Heemstede to Otopeni | 1,115.13 mi (1,794.62 km) |
| Heemstede to Ovidiu | 1,225.91 mi (1,972.91 km) |
