| Peoria to Orangeburg (South Carolina) | 694.86 mi (1,118.28 km) |
| Peoria to Orangevale (California) | 1,676.63 mi (2,698.27 km) |
| Peoria to Orchards (Washington) | 1,679.55 mi (2,702.97 km) |
| Peoria to Orcutt (California) | 1,720.51 mi (2,768.90 km) |
| Peoria to Oregon (Ohio) | 327.33 mi (526.78 km) |
| Peoria to Oregon (Wisconsin) | 150.61 mi (242.39 km) |
| Peoria to Oregon City (Oregon) | 1,682.76 mi (2,708.14 km) |
| Peoria to Orem (Utah) | 1,157.20 mi (1,862.33 km) |
| Peoria to Orinda (California) | 1,741.88 mi (2,803.29 km) |
| Peoria to Orland Park (Illinois) | 108.67 mi (174.88 km) |
| Peoria to Orlando (Florida) | 968.85 mi (1,559.22 km) |
| Peoria to Ormond Beach (Florida) | 925.34 mi (1,489.19 km) |
| Peoria to Oro Valley (Arizona) | 1,312.79 mi (2,112.73 km) |
| Peoria to Oroville (California) | 1,680.73 mi (2,704.87 km) |
| Peoria to Oshkosh (Wisconsin) | 232.28 mi (373.83 km) |
