| Havre de Grace to Orthez | 3,770.24 mi (6,067.62 km) |
| Havre de Grace to Orvault | 3,633.12 mi (5,846.94 km) |
| Havre de Grace to Osny | 3,747.10 mi (6,030.37 km) |
| Havre de Grace to Ostwald | 3,997.08 mi (6,432.68 km) |
| Havre de Grace to Ouistreham | 3,643.69 mi (5,863.95 km) |
| Havre de Grace to Oullins | 3,956.63 mi (6,367.57 km) |
| Havre de Grace to Outreau | 3,687.17 mi (5,933.93 km) |
| Havre de Grace to Oyonnax | 3,977.50 mi (6,401.16 km) |
| Havre de Grace to Ozoir-la-Ferriere | 3,780.34 mi (6,083.88 km) |
| Havre de Grace to Pace | 3,605.49 mi (5,802.47 km) |
| Havre de Grace to Palaiseau | 3,763.64 mi (6,056.99 km) |
| Havre de Grace to Pamiers | 3,889.90 mi (6,260.19 km) |
| Havre de Grace to Panazol | 3,799.35 mi (6,114.47 km) |
| Havre de Grace to Pantin | 3,765.54 mi (6,060.05 km) |
| Havre de Grace to Paray-le-Monial | 3,905.35 mi (6,285.05 km) |
