| Glenn Dale to Oststeinbek | 4,005.16 mi (6,445.68 km) |
| Glenn Dale to Ottendorf-Okrilla | 4,214.85 mi (6,783.14 km) |
| Glenn Dale to Ottersberg | 3,978.93 mi (6,403.46 km) |
| Glenn Dale to Ottobrunn | 4,228.03 mi (6,804.35 km) |
| Glenn Dale to Ottweiler | 4,004.30 mi (6,444.30 km) |
| Glenn Dale to Overath | 3,965.55 mi (6,381.94 km) |
| Glenn Dale to Oyten | 3,974.95 mi (6,397.06 km) |
| Glenn Dale to Paderborn | 4,001.81 mi (6,440.30 km) |
| Glenn Dale to Papenburg | 3,912.83 mi (6,297.10 km) |
| Glenn Dale to Parchim | 4,071.26 mi (6,552.05 km) |
| Glenn Dale to Pasewalk | 4,149.19 mi (6,677.48 km) |
| Glenn Dale to Passau | 4,284.59 mi (6,895.38 km) |
| Glenn Dale to Pattensen | 4,025.75 mi (6,478.81 km) |
| Glenn Dale to Pegnitz | 4,169.97 mi (6,710.92 km) |
| Glenn Dale to Peine | 4,042.20 mi (6,505.30 km) |
