| Mendrisio to Orangevale (California) | 5,830.69 mi (9,383.59 km) |
| Mendrisio to Orchards (Washington) | 5,456.92 mi (8,782.06 km) |
| Mendrisio to Orcutt (California) | 6,029.68 mi (9,703.83 km) |
| Mendrisio to Oregon (Ohio) | 4,348.05 mi (6,997.50 km) |
| Mendrisio to Oregon (Wisconsin) | 4,526.20 mi (7,284.22 km) |
| Mendrisio to Oregon City (Oregon) | 5,478.84 mi (8,817.33 km) |
| Mendrisio to Orem (Utah) | 5,448.75 mi (8,768.92 km) |
| Mendrisio to Orinda (California) | 5,905.53 mi (9,504.04 km) |
| Mendrisio to Orland Park (Illinois) | 4,526.32 mi (7,284.42 km) |
| Mendrisio to Orlando (Florida) | 4,850.11 mi (7,805.49 km) |
| Mendrisio to Ormond Beach (Florida) | 4,801.48 mi (7,727.24 km) |
| Mendrisio to Oro Valley (Arizona) | 5,856.65 mi (9,425.37 km) |
| Mendrisio to Oroville (California) | 5,793.04 mi (9,323.00 km) |
| Mendrisio to Oshkosh (Wisconsin) | 4,445.47 mi (7,154.29 km) |
| Mendrisio to Oskaloosa (Iowa) | 4,725.62 mi (7,605.15 km) |
