| Cities | Distance |
|---|---|
| Hwlffordd to Olivares | 995.45 mi (1,602.02 km) |
| Hwlffordd to Olivenza | 911.91 mi (1,467.58 km) |
| Hwlffordd to Olot | 750.86 mi (1,208.39 km) |
| Hwlffordd to Onate | 617.27 mi (993.40 km) |
| Hwlffordd to Onda | 848.18 mi (1,365.01 km) |
| Hwlffordd to Onteniente | 920.97 mi (1,482.15 km) |
| Hwlffordd to Orihuela | 967.40 mi (1,556.88 km) |
| Hwlffordd to Osuna | 1,006.48 mi (1,619.78 km) |
| Hwlffordd to Ourense | 667.76 mi (1,074.65 km) |
| Hwlffordd to Oviedo | 584.56 mi (940.76 km) |
| Hwlffordd to Paiporta | 882.24 mi (1,419.83 km) |
| Hwlffordd to Pajara | 1,687.51 mi (2,715.79 km) |
| Hwlffordd to Palafolls | 788.66 mi (1,269.23 km) |
| Hwlffordd to Palafrugell | 782.40 mi (1,259.15 km) |
| Hwlffordd to Palamos | 786.05 mi (1,265.03 km) |