| Iowa City to Orthez | 4,369.55 mi (7,032.12 km) |
| Iowa City to Orvault | 4,195.44 mi (6,751.90 km) |
| Iowa City to Osny | 4,275.17 mi (6,880.22 km) |
| Iowa City to Ostwald | 4,507.98 mi (7,254.89 km) |
| Iowa City to Ouistreham | 4,177.88 mi (6,723.65 km) |
| Iowa City to Oullins | 4,510.28 mi (7,258.59 km) |
| Iowa City to Outreau | 4,197.62 mi (6,755.42 km) |
| Iowa City to Oyonnax | 4,521.88 mi (7,277.27 km) |
| Iowa City to Ozoir-la-Ferriere | 4,309.26 mi (6,935.08 km) |
| Iowa City to Pace | 4,158.38 mi (6,692.27 km) |
| Iowa City to Palaiseau | 4,294.96 mi (6,912.07 km) |
| Iowa City to Pamiers | 4,483.30 mi (7,215.17 km) |
| Iowa City to Panazol | 4,366.07 mi (7,026.50 km) |
| Iowa City to Pantin | 4,294.18 mi (6,910.81 km) |
| Iowa City to Paray-le-Monial | 4,454.13 mi (7,168.22 km) |
