| Manassas to Opole | 4,426.05 mi (7,123.04 km) |
| Manassas to Orzesze | 4,475.19 mi (7,202.12 km) |
| Manassas to Osowa | 4,317.11 mi (6,947.72 km) |
| Manassas to Ostroda | 4,394.68 mi (7,072.56 km) |
| Manassas to Ostroleka | 4,473.74 mi (7,199.78 km) |
| Manassas to Ostrow Mazowiecka | 4,495.24 mi (7,234.39 km) |
| Manassas to Ostrow Wielkopolski | 4,387.66 mi (7,061.26 km) |
| Manassas to Ostrowiec Swietokrzyski | 4,545.80 mi (7,315.76 km) |
| Manassas to Ostrzeszow | 4,400.03 mi (7,081.17 km) |
| Manassas to Oswiecim | 4,497.07 mi (7,237.33 km) |
| Manassas to Otwock | 4,497.52 mi (7,238.07 km) |
| Manassas to Ozarow Mazowiecki | 4,477.06 mi (7,205.13 km) |
| Manassas to Ozimek | 4,436.40 mi (7,139.69 km) |
| Manassas to Ozorkow | 4,430.79 mi (7,130.67 km) |
| Manassas to Pabianice | 4,445.64 mi (7,154.56 km) |
