| Trecate to Odessa (Texas) | 5,574.39 mi (8,971.11 km) |
| Trecate to Ogden (Utah) | 5,420.99 mi (8,724.23 km) |
| Trecate to Oildale (California) | 5,969.54 mi (9,607.04 km) |
| Trecate to Ojus (Florida) | 4,912.18 mi (7,905.39 km) |
| Trecate to Okemos (Michigan) | 4,348.89 mi (6,998.86 km) |
| Trecate to Oklahoma City (Oklahoma) | 5,203.85 mi (8,374.78 km) |
| Trecate to Okmulgee (Oklahoma) | 5,137.30 mi (8,267.69 km) |
| Trecate to Olathe (Kansas) | 4,932.23 mi (7,937.66 km) |
| Trecate to Old Jamestown (Missouri) | 4,755.76 mi (7,653.65 km) |
| Trecate to Oldsmar (Florida) | 4,929.51 mi (7,933.27 km) |
| Trecate to Olean (New York) | 4,130.85 mi (6,647.95 km) |
| Trecate to Olive Branch (Mississippi) | 4,918.73 mi (7,915.93 km) |
| Trecate to Olivehurst (California) | 5,834.36 mi (9,389.49 km) |
| Trecate to Olney (Maryland) | 4,193.09 mi (6,748.12 km) |
| Trecate to Olympia (Washington) | 5,406.25 mi (8,700.52 km) |
