| Houghton le Spring to Opole | 857.70 mi (1,380.33 km) |
| Houghton le Spring to Orzesze | 906.19 mi (1,458.38 km) |
| Houghton le Spring to Osowa | 795.19 mi (1,279.73 km) |
| Houghton le Spring to Ostroda | 865.01 mi (1,392.10 km) |
| Houghton le Spring to Ostroleka | 940.16 mi (1,513.04 km) |
| Houghton le Spring to Ostrow Mazowiecka | 958.88 mi (1,543.17 km) |
| Houghton le Spring to Ostrow Wielkopolski | 824.27 mi (1,326.54 km) |
| Houghton le Spring to Ostrowiec Swietokrzyski | 985.86 mi (1,586.59 km) |
| Houghton le Spring to Ostrzeszow | 835.31 mi (1,344.29 km) |
| Houghton le Spring to Oswiecim | 928.23 mi (1,493.84 km) |
| Houghton le Spring to Otwock | 949.13 mi (1,527.47 km) |
| Houghton le Spring to Ozarow Mazowiecki | 928.18 mi (1,493.76 km) |
| Houghton le Spring to Ozimek | 868.41 mi (1,397.56 km) |
| Houghton le Spring to Ozorkow | 874.04 mi (1,406.63 km) |
| Houghton le Spring to Pabianice | 886.18 mi (1,426.16 km) |
