| McDonough to Opole | 4,947.68 mi (7,962.52 km) |
| McDonough to Orzesze | 4,996.90 mi (8,041.73 km) |
| McDonough to Osowa | 4,836.00 mi (7,782.78 km) |
| McDonough to Ostroda | 4,913.77 mi (7,907.96 km) |
| McDonough to Ostroleka | 4,992.87 mi (8,035.25 km) |
| McDonough to Ostrow Mazowiecka | 5,014.50 mi (8,070.06 km) |
| McDonough to Ostrow Wielkopolski | 4,908.84 mi (7,900.01 km) |
| McDonough to Ostrowiec Swietokrzyski | 5,066.60 mi (8,153.91 km) |
| McDonough to Ostrzeszow | 4,921.31 mi (7,920.08 km) |
| McDonough to Oswiecim | 5,018.75 mi (8,076.90 km) |
| McDonough to Otwock | 5,017.55 mi (8,074.97 km) |
| McDonough to Ozarow Mazowiecki | 4,997.15 mi (8,042.13 km) |
| McDonough to Ozimek | 4,957.98 mi (7,979.10 km) |
| McDonough to Ozorkow | 4,951.46 mi (7,968.60 km) |
| McDonough to Pabianice | 4,966.48 mi (7,992.78 km) |
