| Red Oak to Olympia (Washington) | 1,697.92 mi (2,732.54 km) |
| Red Oak to Olympia Heights (Florida) | 1,096.49 mi (1,764.63 km) |
| Red Oak to Omaha (Nebraska) | 605.33 mi (974.19 km) |
| Red Oak to On Top of the World Designated Place (Florida) | 891.37 mi (1,434.51 km) |
| Red Oak to Onalaska (Wisconsin) | 841.25 mi (1,353.86 km) |
| Red Oak to Oneida (New York) | 1,358.57 mi (2,186.41 km) |
| Red Oak to Oneonta (New York) | 1,368.53 mi (2,202.43 km) |
| Red Oak to Ontario (California) | 1,205.07 mi (1,939.37 km) |
| Red Oak to Ontario (Oregon) | 1,347.14 mi (2,168.01 km) |
| Red Oak to Opa-locka (Florida) | 1,095.19 mi (1,762.54 km) |
| Red Oak to Opelika (Alabama) | 663.95 mi (1,068.52 km) |
| Red Oak to Opelousas (Louisiana) | 309.49 mi (498.07 km) |
| Red Oak to Orange (California) | 1,217.77 mi (1,959.82 km) |
| Red Oak to Orange (Texas) | 243.62 mi (392.07 km) |
| Red Oak to Orange City (Florida) | 952.26 mi (1,532.51 km) |
