| Flawil to Oswego (Illinois) | 4,488.19 mi (7,223.05 km) |
| Flawil to Oswego (New York) | 3,945.38 mi (6,349.47 km) |
| Flawil to Otsego (Minnesota) | 4,514.37 mi (7,265.17 km) |
| Flawil to Ottawa (Illinois) | 4,522.15 mi (7,277.69 km) |
| Flawil to Ottawa (Kansas) | 4,898.87 mi (7,883.97 km) |
| Flawil to Ottumwa (Iowa) | 4,673.87 mi (7,521.86 km) |
| Flawil to Overland (Missouri) | 4,707.52 mi (7,576.02 km) |
| Flawil to Overland Park (Kansas) | 4,862.99 mi (7,826.23 km) |
| Flawil to Overlea (Maryland) | 4,118.10 mi (6,627.45 km) |
| Flawil to Oviedo (Florida) | 4,806.84 mi (7,735.86 km) |
| Flawil to Owasso (Oklahoma) | 5,036.12 mi (8,104.86 km) |
| Flawil to Owatonna (Minnesota) | 4,556.42 mi (7,332.86 km) |
| Flawil to Owensboro (Kentucky) | 4,624.18 mi (7,441.90 km) |
| Flawil to Owings Mills (Maryland) | 4,127.50 mi (6,642.57 km) |
| Flawil to Owosso (Michigan) | 4,268.46 mi (6,869.42 km) |
