| Iasi to Opole | 500.30 mi (805.15 km) |
| Iasi to Orzesze | 452.77 mi (728.67 km) |
| Iasi to Osowa | 639.67 mi (1,029.45 km) |
| Iasi to Ostroda | 561.99 mi (904.44 km) |
| Iasi to Ostroleka | 487.09 mi (783.89 km) |
| Iasi to Ostrow Mazowiecka | 464.03 mi (746.78 km) |
| Iasi to Ostrow Wielkopolski | 537.02 mi (864.25 km) |
| Iasi to Ostrowiec Swietokrzyski | 382.43 mi (615.47 km) |
| Iasi to Ostrzeszow | 524.46 mi (844.03 km) |
| Iasi to Oswiecim | 430.54 mi (692.89 km) |
| Iasi to Otwock | 443.74 mi (714.13 km) |
| Iasi to Ozarow Mazowiecki | 462.25 mi (743.92 km) |
| Iasi to Ozimek | 489.44 mi (787.68 km) |
| Iasi to Ozorkow | 498.17 mi (801.73 km) |
| Iasi to Pabianice | 481.41 mi (774.75 km) |
