| Enniskillen to Opole | 1,098.48 mi (1,767.84 km) |
| Enniskillen to Orzesze | 1,145.87 mi (1,844.10 km) |
| Enniskillen to Osowa | 1,044.49 mi (1,680.94 km) |
| Enniskillen to Ostroda | 1,114.23 mi (1,793.18 km) |
| Enniskillen to Ostroleka | 1,189.13 mi (1,913.72 km) |
| Enniskillen to Ostrow Mazowiecka | 1,207.66 mi (1,943.54 km) |
| Enniskillen to Ostrow Wielkopolski | 1,068.69 mi (1,719.90 km) |
| Enniskillen to Ostrowiec Swietokrzyski | 1,230.93 mi (1,980.99 km) |
| Enniskillen to Ostrzeszow | 1,079.02 mi (1,736.51 km) |
| Enniskillen to Oswiecim | 1,168.08 mi (1,879.84 km) |
| Enniskillen to Otwock | 1,196.77 mi (1,926.02 km) |
| Enniskillen to Ozarow Mazowiecki | 1,175.82 mi (1,892.30 km) |
| Enniskillen to Ozimek | 1,109.56 mi (1,785.67 km) |
| Enniskillen to Ozorkow | 1,120.41 mi (1,803.13 km) |
| Enniskillen to Pabianice | 1,131.77 mi (1,821.42 km) |
