| Lowell to Orbetello | 4,018.04 mi (6,466.41 km) |
| Lowell to Oria | 4,370.05 mi (7,032.91 km) |
| Lowell to Oristano | 3,991.20 mi (6,423.22 km) |
| Lowell to Orta Nova | 4,254.75 mi (6,847.36 km) |
| Lowell to Orte | 4,068.53 mi (6,547.67 km) |
| Lowell to Ortona | 4,159.86 mi (6,694.64 km) |
| Lowell to Orvieto | 4,047.30 mi (6,513.50 km) |
| Lowell to Orzinuovi | 3,861.35 mi (6,214.24 km) |
| Lowell to Osimo | 4,079.17 mi (6,564.79 km) |
| Lowell to Ospitaletto | 3,862.18 mi (6,215.57 km) |
| Lowell to Ostuni | 4,358.76 mi (7,014.74 km) |
| Lowell to Ottaviano | 4,219.17 mi (6,790.10 km) |
| Lowell to Ovada | 3,831.19 mi (6,165.70 km) |
| Lowell to Ozieri | 3,985.65 mi (6,414.28 km) |
| Lowell to Paceco | 4,241.94 mi (6,826.75 km) |
