| Mangalia to Orangevale (California) | 6,432.31 mi (10,351.81 km) |
| Mangalia to Orchards (Washington) | 6,004.14 mi (9,662.73 km) |
| Mangalia to Orcutt (California) | 6,661.31 mi (10,720.35 km) |
| Mangalia to Oregon (Ohio) | 5,185.13 mi (8,344.66 km) |
| Mangalia to Oregon (Wisconsin) | 5,325.23 mi (8,570.12 km) |
| Mangalia to Oregon City (Oregon) | 6,027.67 mi (9,700.59 km) |
| Mangalia to Orem (Utah) | 6,121.45 mi (9,851.52 km) |
| Mangalia to Orinda (California) | 6,503.01 mi (10,465.58 km) |
| Mangalia to Orland Park (Illinois) | 5,342.40 mi (8,597.76 km) |
| Mangalia to Orlando (Florida) | 5,765.98 mi (9,279.46 km) |
| Mangalia to Ormond Beach (Florida) | 5,714.84 mi (9,197.15 km) |
| Mangalia to Oro Valley (Arizona) | 6,584.58 mi (10,596.85 km) |
| Mangalia to Oroville (California) | 6,386.66 mi (10,278.33 km) |
| Mangalia to Oshkosh (Wisconsin) | 5,240.84 mi (8,434.31 km) |
| Mangalia to Oskaloosa (Iowa) | 5,518.59 mi (8,881.31 km) |
