| Irun to Oswego (Illinois) | 4,195.24 mi (6,751.59 km) |
| Irun to Oswego (New York) | 3,615.13 mi (5,817.99 km) |
| Irun to Otsego (Minnesota) | 4,276.14 mi (6,881.79 km) |
| Irun to Ottawa (Illinois) | 4,228.87 mi (6,805.70 km) |
| Irun to Ottawa (Kansas) | 4,616.42 mi (7,429.41 km) |
| Irun to Ottumwa (Iowa) | 4,395.39 mi (7,073.69 km) |
| Irun to Overland (Missouri) | 4,400.95 mi (7,082.65 km) |
| Irun to Overland Park (Kansas) | 4,579.69 mi (7,370.30 km) |
| Irun to Overlea (Maryland) | 3,752.50 mi (6,039.07 km) |
| Irun to Oviedo (Florida) | 4,385.85 mi (7,058.34 km) |
| Irun to Owasso (Oklahoma) | 4,739.90 mi (7,628.14 km) |
| Irun to Owatonna (Minnesota) | 4,306.58 mi (6,930.78 km) |
| Irun to Owensboro (Kentucky) | 4,294.56 mi (6,911.42 km) |
| Irun to Owings Mills (Maryland) | 3,763.48 mi (6,056.73 km) |
| Irun to Owosso (Michigan) | 3,967.28 mi (6,384.72 km) |
