| Ashburn to Opole | 4,411.82 mi (7,100.14 km) |
| Ashburn to Orzesze | 4,461.00 mi (7,179.29 km) |
| Ashburn to Osowa | 4,302.04 mi (6,923.46 km) |
| Ashburn to Ostroda | 4,379.65 mi (7,048.37 km) |
| Ashburn to Ostroleka | 4,458.72 mi (7,175.61 km) |
| Ashburn to Ostrow Mazowiecka | 4,480.25 mi (7,210.27 km) |
| Ashburn to Ostrow Wielkopolski | 4,373.23 mi (7,038.03 km) |
| Ashburn to Ostrowiec Swietokrzyski | 4,531.23 mi (7,292.31 km) |
| Ashburn to Ostrzeszow | 4,385.64 mi (7,058.00 km) |
| Ashburn to Oswiecim | 4,482.87 mi (7,214.48 km) |
| Ashburn to Otwock | 4,482.72 mi (7,214.24 km) |
| Ashburn to Ozarow Mazowiecki | 4,462.27 mi (7,181.34 km) |
| Ashburn to Ozimek | 4,422.14 mi (7,116.75 km) |
| Ashburn to Ozorkow | 4,416.18 mi (7,107.15 km) |
| Ashburn to Pabianice | 4,431.08 mi (7,131.13 km) |
