| Trecate to Oakley (California) | 5,901.72 mi (9,497.90 km) |
| Trecate to Oakton (Virginia) | 4,213.64 mi (6,781.19 km) |
| Trecate to Oakville (Missouri) | 4,775.29 mi (7,685.09 km) |
| Trecate to Oatfield (Oregon) | 5,493.56 mi (8,841.04 km) |
| Trecate to Ocala (Florida) | 4,853.99 mi (7,811.75 km) |
| Trecate to Ocean Acres (New Jersey) | 4,048.35 mi (6,515.19 km) |
| Trecate to Ocean City (New Jersey) | 4,081.35 mi (6,568.31 km) |
| Trecate to Ocean Pines (Maryland) | 4,141.00 mi (6,664.30 km) |
| Trecate to Ocean Pointe (Hawaii) | 7,750.42 mi (12,473.09 km) |
| Trecate to Ocean Springs (Mississippi) | 5,089.13 mi (8,190.17 km) |
| Trecate to Oceanside (California) | 6,040.31 mi (9,720.94 km) |
| Trecate to Oceanside (New York) | 3,985.26 mi (6,413.66 km) |
| Trecate to Ocoee (Florida) | 4,853.68 mi (7,811.24 km) |
| Trecate to Oconomowoc (Wisconsin) | 4,492.39 mi (7,229.80 km) |
| Trecate to Odenton (Maryland) | 4,180.13 mi (6,727.27 km) |
