| Didcot to Hisarcik | 1,688.56 mi (2,717.47 km) |
| Didcot to Hizan | 2,285.82 mi (3,678.67 km) |
| Didcot to Hopa | 2,113.40 mi (3,401.19 km) |
| Didcot to Huyuk | 1,843.75 mi (2,967.23 km) |
| Didcot to Idil | 2,301.42 mi (3,703.78 km) |
| Didcot to Igdir | 2,284.34 mi (3,676.29 km) |
| Didcot to Ihsaniye | 1,746.66 mi (2,810.97 km) |
| Didcot to Ilic | 2,069.45 mi (3,330.45 km) |
| Didcot to Ilica | 2,157.49 mi (3,472.14 km) |
| Didcot to Incesu | 1,962.37 mi (3,158.13 km) |
| Didcot to Incirliova | 1,692.41 mi (2,723.68 km) |
| Didcot to Inebolu | 1,763.63 mi (2,838.29 km) |
| Didcot to Inegol | 1,663.32 mi (2,676.85 km) |
| Didcot to Ipsala | 1,498.88 mi (2,412.21 km) |
| Didcot to Iskenderun | 2,094.63 mi (3,370.99 km) |
