| Redding to Odenton (Maryland) | 2,398.54 mi (3,860.08 km) |
| Redding to Odessa (Texas) | 1,262.92 mi (2,032.48 km) |
| Redding to Ogden (Utah) | 544.55 mi (876.37 km) |
| Redding to Oildale (California) | 398.80 mi (641.81 km) |
| Redding to Ojus (Florida) | 2,608.94 mi (4,198.68 km) |
| Redding to Okemos (Michigan) | 1,948.77 mi (3,136.24 km) |
| Redding to Oklahoma City (Oklahoma) | 1,392.74 mi (2,241.39 km) |
| Redding to Okmulgee (Oklahoma) | 1,467.68 mi (2,362.00 km) |
| Redding to Olathe (Kansas) | 1,462.39 mi (2,353.50 km) |
| Redding to Old Jamestown (Missouri) | 1,700.05 mi (2,735.97 km) |
| Redding to Oldsmar (Florida) | 2,400.84 mi (3,863.78 km) |
| Redding to Olean (New York) | 2,256.64 mi (3,631.71 km) |
| Redding to Olive Branch (Mississippi) | 1,807.07 mi (2,908.20 km) |
| Redding to Olivehurst (California) | 111.55 mi (179.52 km) |
| Redding to Olney (Maryland) | 2,377.56 mi (3,826.31 km) |
