| Upminster to Ovidiu | 1,393.53 mi (2,242.67 km) |
| Upminster to Pantelimon | 1,287.55 mi (2,072.12 km) |
| Upminster to Pascani | 1,219.68 mi (1,962.88 km) |
| Upminster to Pechea | 1,314.60 mi (2,115.64 km) |
| Upminster to Pecica | 1,012.47 mi (1,629.41 km) |
| Upminster to Petrila | 1,135.44 mi (1,827.31 km) |
| Upminster to Petrosani | 1,134.79 mi (1,826.27 km) |
| Upminster to Piatra Neamt | 1,213.60 mi (1,953.10 km) |
| Upminster to Pitesti | 1,216.88 mi (1,958.38 km) |
| Upminster to Ploiesti | 1,262.59 mi (2,031.94 km) |
| Upminster to Podu Iloaiei | 1,243.73 mi (2,001.59 km) |
| Upminster to Poiana Mare | 1,177.62 mi (1,895.20 km) |
| Upminster to Poienile de sub Munte | 1,105.89 mi (1,779.76 km) |
| Upminster to Popesti-Leordeni | 1,288.84 mi (2,074.18 km) |
| Upminster to Pucioasa | 1,233.14 mi (1,984.55 km) |
