| Ecaussinnes-Lalaing to Orangevale (California) | 5,439.22 mi (8,753.58 km) |
| Ecaussinnes-Lalaing to Orchards (Washington) | 5,064.31 mi (8,150.22 km) |
| Ecaussinnes-Lalaing to Orcutt (California) | 5,639.96 mi (9,076.64 km) |
| Ecaussinnes-Lalaing to Oregon (Ohio) | 3,992.70 mi (6,425.62 km) |
| Ecaussinnes-Lalaing to Oregon (Wisconsin) | 4,159.15 mi (6,693.50 km) |
| Ecaussinnes-Lalaing to Oregon City (Oregon) | 5,086.23 mi (8,185.49 km) |
| Ecaussinnes-Lalaing to Orem (Utah) | 5,061.63 mi (8,145.91 km) |
| Ecaussinnes-Lalaing to Orinda (California) | 5,513.95 mi (8,873.85 km) |
| Ecaussinnes-Lalaing to Orland Park (Illinois) | 4,164.23 mi (6,701.67 km) |
| Ecaussinnes-Lalaing to Orlando (Florida) | 4,537.84 mi (7,302.95 km) |
| Ecaussinnes-Lalaing to Ormond Beach (Florida) | 4,487.21 mi (7,221.47 km) |
| Ecaussinnes-Lalaing to Oro Valley (Arizona) | 5,477.21 mi (8,814.71 km) |
| Ecaussinnes-Lalaing to Oroville (California) | 5,401.25 mi (8,692.47 km) |
| Ecaussinnes-Lalaing to Oshkosh (Wisconsin) | 4,077.26 mi (6,561.72 km) |
| Ecaussinnes-Lalaing to Oskaloosa (Iowa) | 4,357.37 mi (7,012.51 km) |
