| New Port Richey to Oakley (California) | 2,335.10 mi (3,757.98 km) |
| New Port Richey to Oakton (Virginia) | 798.23 mi (1,284.63 km) |
| New Port Richey to Oakville (Missouri) | 829.51 mi (1,334.97 km) |
| New Port Richey to Oatfield (Oregon) | 2,469.71 mi (3,974.62 km) |
| New Port Richey to Ocala (Florida) | 72.91 mi (117.33 km) |
| New Port Richey to Ocean Acres (New Jersey) | 928.71 mi (1,494.61 km) |
| New Port Richey to Ocean City (New Jersey) | 891.91 mi (1,435.39 km) |
| New Port Richey to Ocean Pines (Maryland) | 824.87 mi (1,327.49 km) |
| New Port Richey to Ocean Pointe (Hawaii) | 4,674.81 mi (7,523.38 km) |
| New Port Richey to Ocean Springs (Mississippi) | 394.84 mi (635.43 km) |
| New Port Richey to Oceanside (California) | 2,073.33 mi (3,336.70 km) |
| New Port Richey to Oceanside (New York) | 998.71 mi (1,607.26 km) |
| New Port Richey to Ocoee (Florida) | 75.52 mi (121.55 km) |
| New Port Richey to Oconomowoc (Wisconsin) | 1,075.54 mi (1,730.91 km) |
| New Port Richey to Odenton (Maryland) | 823.38 mi (1,325.09 km) |
