| Summerfield to Oskaloosa (Iowa) | 848.53 mi (1,365.58 km) |
| Summerfield to Oswego (Illinois) | 633.63 mi (1,019.72 km) |
| Summerfield to Oswego (New York) | 314.77 mi (506.58 km) |
| Summerfield to Otsego (Minnesota) | 962.36 mi (1,548.77 km) |
| Summerfield to Ottawa (Illinois) | 653.43 mi (1,051.60 km) |
| Summerfield to Ottawa (Kansas) | 989.77 mi (1,592.88 km) |
| Summerfield to Ottumwa (Iowa) | 835.24 mi (1,344.18 km) |
| Summerfield to Overland (Missouri) | 726.47 mi (1,169.14 km) |
| Summerfield to Overland Park (Kansas) | 956.69 mi (1,539.65 km) |
| Summerfield to Overlea (Maryland) | 36.91 mi (59.41 km) |
| Summerfield to Oviedo (Florida) | 749.88 mi (1,206.82 km) |
| Summerfield to Owasso (Oklahoma) | 1,051.77 mi (1,692.66 km) |
| Summerfield to Owatonna (Minnesota) | 917.46 mi (1,476.50 km) |
| Summerfield to Owensboro (Kentucky) | 560.83 mi (902.56 km) |
| Summerfield to Owings Mills (Maryland) | 35.29 mi (56.79 km) |
