| Portland to Montana | 5,944.17 mi (9,566.22 km) |
| Portland to Nova Zagora | 6,056.32 mi (9,746.70 km) |
| Portland to Novi Iskar | 5,985.31 mi (9,632.42 km) |
| Portland to Novi Pazar | 6,022.42 mi (9,692.14 km) |
| Portland to Omurtag | 6,024.51 mi (9,695.51 km) |
| Portland to Panagyurishte | 6,020.84 mi (9,689.61 km) |
| Portland to Parvomay | 6,066.40 mi (9,762.93 km) |
| Portland to Pavlikeni | 5,995.11 mi (9,648.20 km) |
| Portland to Pazardzhik | 6,042.93 mi (9,725.15 km) |
| Portland to Pernik | 5,991.67 mi (9,642.67 km) |
| Portland to Peshtera | 6,052.92 mi (9,741.23 km) |
| Portland to Petrich | 6,071.68 mi (9,771.42 km) |
| Portland to Pleven | 5,971.30 mi (9,609.88 km) |
| Portland to Plovdiv | 6,054.23 mi (9,743.34 km) |
| Portland to Pomorie | 6,080.39 mi (9,785.44 km) |
