| Iisalmi to Orzesze | 978.24 mi (1,574.32 km) |
| Iisalmi to Osowa | 702.05 mi (1,129.84 km) |
| Iisalmi to Ostroda | 728.37 mi (1,172.20 km) |
| Iisalmi to Ostroleka | 752.87 mi (1,211.62 km) |
| Iisalmi to Ostrow Mazowiecka | 767.76 mi (1,235.59 km) |
| Iisalmi to Ostrow Wielkopolski | 891.26 mi (1,434.34 km) |
| Iisalmi to Ostrowiec Swietokrzyski | 898.36 mi (1,445.78 km) |
| Iisalmi to Ostrzeszow | 904.88 mi (1,456.26 km) |
| Iisalmi to Oswiecim | 980.29 mi (1,577.62 km) |
| Iisalmi to Otwock | 819.65 mi (1,319.10 km) |
| Iisalmi to Ozarow Mazowiecki | 817.52 mi (1,315.68 km) |
| Iisalmi to Ozimek | 950.14 mi (1,529.10 km) |
| Iisalmi to Ozorkow | 851.21 mi (1,369.89 km) |
| Iisalmi to Pabianice | 871.00 mi (1,401.74 km) |
| Iisalmi to Parczew | 839.39 mi (1,350.87 km) |
