| Youngsville to Olympia (Washington) | 2,017.67 mi (3,247.13 km) |
| Youngsville to Olympia Heights (Florida) | 772.71 mi (1,243.56 km) |
| Youngsville to Omaha (Nebraska) | 804.14 mi (1,294.14 km) |
| Youngsville to On Top of the World Designated Place (Florida) | 587.16 mi (944.95 km) |
| Youngsville to Onalaska (Wisconsin) | 953.92 mi (1,535.18 km) |
| Youngsville to Oneida (New York) | 1,270.55 mi (2,044.75 km) |
| Youngsville to Oneonta (New York) | 1,267.74 mi (2,040.23 km) |
| Youngsville to Ontario (California) | 1,519.87 mi (2,446.00 km) |
| Youngsville to Ontario (Oregon) | 1,669.33 mi (2,686.52 km) |
| Youngsville to Opa-locka (Florida) | 772.25 mi (1,242.82 km) |
| Youngsville to Opelika (Alabama) | 428.71 mi (689.94 km) |
| Youngsville to Opelousas (Louisiana) | 30.06 mi (48.38 km) |
| Youngsville to Orange (California) | 1,531.39 mi (2,464.53 km) |
| Youngsville to Orange (Texas) | 105.44 mi (169.70 km) |
| Youngsville to Orange City (Florida) | 648.61 mi (1,043.84 km) |
