| Summerlin South to Oakleaf Plantation (Florida) | 1,970.88 mi (3,171.83 km) |
| Summerlin South to Oakley (California) | 373.73 mi (601.47 km) |
| Summerlin South to Oakton (Virginia) | 2,078.17 mi (3,344.49 km) |
| Summerlin South to Oakville (Missouri) | 1,380.05 mi (2,220.97 km) |
| Summerlin South to Oatfield (Oregon) | 745.08 mi (1,199.09 km) |
| Summerlin South to Ocala (Florida) | 1,978.70 mi (3,184.41 km) |
| Summerlin South to Ocean Acres (New Jersey) | 2,231.51 mi (3,591.26 km) |
| Summerlin South to Ocean City (New Jersey) | 2,218.59 mi (3,570.48 km) |
| Summerlin South to Ocean Pines (Maryland) | 2,197.98 mi (3,537.30 km) |
| Summerlin South to Ocean Pointe (Hawaii) | 2,755.76 mi (4,434.97 km) |
| Summerlin South to Ocean Springs (Mississippi) | 1,578.17 mi (2,539.82 km) |
| Summerlin South to Oceanside (California) | 229.64 mi (369.57 km) |
| Summerlin South to Oceanside (New York) | 2,258.51 mi (3,634.73 km) |
| Summerlin South to Ocoee (Florida) | 2,029.34 mi (3,265.90 km) |
| Summerlin South to Oconomowoc (Wisconsin) | 1,499.97 mi (2,413.97 km) |
