| Suffolk to Oskaloosa (Iowa) | 914.38 mi (1,471.55 km) |
| Suffolk to Oswego (Illinois) | 714.06 mi (1,149.17 km) |
| Suffolk to Oswego (New York) | 466.87 mi (751.36 km) |
| Suffolk to Otsego (Minnesota) | 1,062.02 mi (1,709.16 km) |
| Suffolk to Ottawa (Illinois) | 728.15 mi (1,171.84 km) |
| Suffolk to Ottawa (Kansas) | 1,025.51 mi (1,650.40 km) |
| Suffolk to Ottumwa (Iowa) | 898.43 mi (1,445.89 km) |
| Suffolk to Overland (Missouri) | 762.45 mi (1,227.04 km) |
| Suffolk to Overland Park (Kansas) | 995.27 mi (1,601.74 km) |
| Suffolk to Overlea (Maryland) | 184.52 mi (296.96 km) |
| Suffolk to Oviedo (Florida) | 614.87 mi (989.53 km) |
| Suffolk to Owasso (Oklahoma) | 1,064.61 mi (1,713.33 km) |
| Suffolk to Owatonna (Minnesota) | 1,008.86 mi (1,623.60 km) |
| Suffolk to Owensboro (Kentucky) | 580.76 mi (934.64 km) |
| Suffolk to Owings Mills (Maryland) | 187.85 mi (302.32 km) |
