| Ponca City to Ickenham | 4,542.11 mi (7,309.82 km) |
| Ponca City to Ifield | 4,565.89 mi (7,348.09 km) |
| Ponca City to Ilford | 4,562.14 mi (7,342.05 km) |
| Ponca City to Ilfracombe | 4,413.75 mi (7,103.24 km) |
| Ponca City to Ilkeston | 4,463.44 mi (7,183.22 km) |
| Ponca City to Ilkley | 4,414.16 mi (7,103.91 km) |
| Ponca City to Immingham | 4,482.10 mi (7,213.25 km) |
| Ponca City to Ince-in-Makerfield | 4,397.99 mi (7,077.89 km) |
| Ponca City to Inverness | 4,223.73 mi (6,797.44 km) |
| Ponca City to Inverurie | 4,291.88 mi (6,907.12 km) |
| Ponca City to Ipswich | 4,584.61 mi (7,378.21 km) |
| Ponca City to Irlam | 4,407.46 mi (7,093.13 km) |
| Ponca City to Irthlingborough | 4,510.32 mi (7,258.66 km) |
| Ponca City to Irvine | 4,261.23 mi (6,857.78 km) |
| Ponca City to Islington | 4,555.54 mi (7,331.43 km) |
