| Chapel Hill to Oakley (California) | 2,338.70 mi (3,763.78 km) |
| Chapel Hill to Oakton (Virginia) | 225.74 mi (363.30 km) |
| Chapel Hill to Oakville (Missouri) | 644.42 mi (1,037.09 km) |
| Chapel Hill to Oatfield (Oregon) | 2,343.48 mi (3,771.47 km) |
| Chapel Hill to Ocala (Florida) | 500.21 mi (805.01 km) |
| Chapel Hill to Ocean Acres (New Jersey) | 369.94 mi (595.36 km) |
| Chapel Hill to Ocean City (New Jersey) | 335.01 mi (539.15 km) |
| Chapel Hill to Ocean Pines (Maryland) | 273.34 mi (439.89 km) |
| Chapel Hill to Ocean Pointe (Hawaii) | 4,771.75 mi (7,679.39 km) |
| Chapel Hill to Ocean Springs (Mississippi) | 680.00 mi (1,094.36 km) |
| Chapel Hill to Oceanside (California) | 2,171.26 mi (3,494.30 km) |
| Chapel Hill to Oceanside (New York) | 437.51 mi (704.10 km) |
| Chapel Hill to Ocoee (Florida) | 528.11 mi (849.90 km) |
| Chapel Hill to Oconomowoc (Wisconsin) | 705.97 mi (1,136.14 km) |
| Chapel Hill to Odenton (Maryland) | 252.10 mi (405.72 km) |
