| Ashtabula to Odessa (Texas) | 1,371.01 mi (2,206.43 km) |
| Ashtabula to Ogden (Utah) | 1,603.35 mi (2,580.34 km) |
| Ashtabula to Oildale (California) | 2,092.38 mi (3,367.36 km) |
| Ashtabula to Ojus (Florida) | 1,100.85 mi (1,771.65 km) |
| Ashtabula to Okemos (Michigan) | 193.34 mi (311.16 km) |
| Ashtabula to Oklahoma City (Oklahoma) | 1,002.28 mi (1,613.01 km) |
| Ashtabula to Okmulgee (Oklahoma) | 925.00 mi (1,488.64 km) |
| Ashtabula to Olathe (Kansas) | 765.48 mi (1,231.92 km) |
| Ashtabula to Old Jamestown (Missouri) | 541.45 mi (871.38 km) |
| Ashtabula to Oldsmar (Florida) | 961.34 mi (1,547.13 km) |
| Ashtabula to Olean (New York) | 122.33 mi (196.87 km) |
| Ashtabula to Olive Branch (Mississippi) | 683.71 mi (1,100.32 km) |
| Ashtabula to Olivehurst (California) | 2,130.60 mi (3,428.88 km) |
| Ashtabula to Olney (Maryland) | 271.99 mi (437.73 km) |
| Ashtabula to Olympia (Washington) | 2,080.55 mi (3,348.32 km) |
