| Houston to Oxford (Alabama) | 618.15 mi (994.82 km) |
| Houston to Oxford (Mississippi) | 466.19 mi (750.26 km) |
| Houston to Oxford (Ohio) | 902.55 mi (1,452.52 km) |
| Houston to Oxnard (California) | 1,423.67 mi (2,291.18 km) |
| Houston to Oxon Hill (Maryland) | 1,218.04 mi (1,960.24 km) |
| Houston to Ozark (Alabama) | 590.31 mi (950.01 km) |
| Houston to Ozark (Missouri) | 516.35 mi (830.98 km) |
| Houston to Pace (Florida) | 494.20 mi (795.34 km) |
| Houston to Pacific Grove (California) | 1,599.22 mi (2,573.70 km) |
| Houston to Pacifica (California) | 1,641.43 mi (2,641.63 km) |
| Houston to Paducah (Kentucky) | 635.68 mi (1,023.03 km) |
| Houston to Pahrump (Nevada) | 1,271.15 mi (2,045.72 km) |
| Houston to Painesville (Ohio) | 1,140.87 mi (1,836.05 km) |
| Houston to Palatine (Illinois) | 945.00 mi (1,520.84 km) |
| Houston to Palatka (Florida) | 822.73 mi (1,324.06 km) |
