| Massy to Orangevale (California) | 5,478.91 mi (8,817.45 km) |
| Massy to Orchards (Washington) | 5,116.14 mi (8,233.63 km) |
| Massy to Orcutt (California) | 5,672.77 mi (9,129.44 km) |
| Massy to Oregon (Ohio) | 3,976.82 mi (6,400.07 km) |
| Massy to Oregon (Wisconsin) | 4,155.23 mi (6,687.20 km) |
| Massy to Oregon City (Oregon) | 5,137.65 mi (8,268.25 km) |
| Massy to Orem (Utah) | 5,087.75 mi (8,187.94 km) |
| Massy to Orinda (California) | 5,554.16 mi (8,938.55 km) |
| Massy to Orland Park (Illinois) | 4,154.98 mi (6,686.79 km) |
| Massy to Orlando (Florida) | 4,489.72 mi (7,225.51 km) |
| Massy to Ormond Beach (Florida) | 4,440.33 mi (7,146.01 km) |
| Massy to Oro Valley (Arizona) | 5,489.04 mi (8,833.76 km) |
| Massy to Oroville (California) | 5,442.68 mi (8,759.14 km) |
| Massy to Oshkosh (Wisconsin) | 4,074.67 mi (6,557.54 km) |
| Massy to Oskaloosa (Iowa) | 4,354.79 mi (7,008.35 km) |
