| Ithaca to Odessa (Texas) | 1,590.31 mi (2,559.36 km) |
| Ithaca to Ogden (Utah) | 1,814.29 mi (2,919.82 km) |
| Ithaca to Oildale (California) | 2,311.32 mi (3,719.70 km) |
| Ithaca to Ojus (Florida) | 1,157.90 mi (1,863.47 km) |
| Ithaca to Okemos (Michigan) | 402.73 mi (648.14 km) |
| Ithaca to Oklahoma City (Oklahoma) | 1,223.26 mi (1,968.64 km) |
| Ithaca to Okmulgee (Oklahoma) | 1,144.78 mi (1,842.35 km) |
| Ithaca to Olathe (Kansas) | 988.85 mi (1,591.39 km) |
| Ithaca to Old Jamestown (Missouri) | 763.19 mi (1,228.24 km) |
| Ithaca to Oldsmar (Florida) | 1,052.84 mi (1,694.38 km) |
| Ithaca to Olean (New York) | 101.76 mi (163.76 km) |
| Ithaca to Olive Branch (Mississippi) | 884.27 mi (1,423.10 km) |
| Ithaca to Olivehurst (California) | 2,341.51 mi (3,768.30 km) |
| Ithaca to Olney (Maryland) | 229.78 mi (369.79 km) |
| Ithaca to Olympia (Washington) | 2,264.95 mi (3,645.09 km) |
