| Serris to Oswego (Illinois) | 4,185.87 mi (6,736.51 km) |
| Serris to Oswego (New York) | 3,637.65 mi (5,854.24 km) |
| Serris to Otsego (Minnesota) | 4,221.55 mi (6,793.93 km) |
| Serris to Ottawa (Illinois) | 4,219.82 mi (6,791.15 km) |
| Serris to Ottawa (Kansas) | 4,598.75 mi (7,400.97 km) |
| Serris to Ottumwa (Iowa) | 4,374.07 mi (7,039.38 km) |
| Serris to Overland (Missouri) | 4,403.54 mi (7,086.82 km) |
| Serris to Overland Park (Kansas) | 4,562.68 mi (7,342.93 km) |
| Serris to Overlea (Maryland) | 3,807.54 mi (6,127.65 km) |
| Serris to Oviedo (Florida) | 4,494.76 mi (7,233.62 km) |
| Serris to Owasso (Oklahoma) | 4,734.04 mi (7,618.70 km) |
| Serris to Owatonna (Minnesota) | 4,261.45 mi (6,858.14 km) |
| Serris to Owensboro (Kentucky) | 4,317.24 mi (6,947.92 km) |
| Serris to Owings Mills (Maryland) | 3,817.05 mi (6,142.95 km) |
| Serris to Owosso (Michigan) | 3,964.65 mi (6,380.49 km) |
