| Halstead to Ondokuzmayis | 1,804.68 mi (2,904.36 km) |
| Halstead to Ordu | 1,901.31 mi (3,059.87 km) |
| Halstead to Ortahisar | 1,876.96 mi (3,020.67 km) |
| Halstead to Ortakent | 1,649.87 mi (2,655.20 km) |
| Halstead to Ortaklar | 1,618.82 mi (2,605.24 km) |
| Halstead to Ortakoy | 1,837.91 mi (2,957.84 km) |
| Halstead to Ortakoy | 1,820.89 mi (2,930.44 km) |
| Halstead to Osmaneli | 1,602.41 mi (2,578.83 km) |
| Halstead to Osmaniye | 2,004.30 mi (3,225.60 km) |
| Halstead to Ozdere | 1,598.02 mi (2,571.77 km) |
| Halstead to Palu | 2,084.31 mi (3,354.36 km) |
| Halstead to Pamukkale | 1,679.54 mi (2,702.95 km) |
| Halstead to Patnos | 2,184.36 mi (3,515.38 km) |
| Halstead to Pazar | 1,865.37 mi (3,002.02 km) |
| Halstead to Pazarcik | 2,028.28 mi (3,264.19 km) |
