| Sumner to Opole | 5,270.72 mi (8,482.41 km) |
| Sumner to Orzesze | 5,318.67 mi (8,559.57 km) |
| Sumner to Osowa | 5,048.64 mi (8,125.00 km) |
| Sumner to Ostroda | 5,120.49 mi (8,240.63 km) |
| Sumner to Ostroleka | 5,188.07 mi (8,349.40 km) |
| Sumner to Ostrow Mazowiecka | 5,210.59 mi (8,385.63 km) |
| Sumner to Ostrow Wielkopolski | 5,207.79 mi (8,381.12 km) |
| Sumner to Ostrowiec Swietokrzyski | 5,319.30 mi (8,560.59 km) |
| Sumner to Ostrzeszow | 5,224.41 mi (8,407.87 km) |
| Sumner to Oswiecim | 5,334.74 mi (8,585.44 km) |
| Sumner to Otwock | 5,242.53 mi (8,437.04 km) |
| Sumner to Ozarow Mazowiecki | 5,227.97 mi (8,413.60 km) |
| Sumner to Ozimek | 5,275.80 mi (8,490.58 km) |
| Sumner to Ozorkow | 5,215.94 mi (8,394.25 km) |
| Sumner to Pabianice | 5,237.50 mi (8,428.94 km) |
