| Rhondda to Lemay (Missouri) | 4,077.32 mi (6,561.80 km) |
| Rhondda to Lemon Grove (California) | 5,362.18 mi (8,629.59 km) |
| Rhondda to Lemon Hill (California) | 5,178.09 mi (8,333.34 km) |
| Rhondda to Lemont (Illinois) | 3,841.13 mi (6,181.71 km) |
| Rhondda to Lemoore (California) | 5,252.28 mi (8,452.72 km) |
| Rhondda to Lenexa (Kansas) | 4,230.91 mi (6,808.99 km) |
| Rhondda to Lennox (California) | 5,338.68 mi (8,591.77 km) |
| Rhondda to Lenoir (North Carolina) | 3,849.19 mi (6,194.67 km) |
| Rhondda to Leominster (Massachusetts) | 3,156.58 mi (5,080.02 km) |
| Rhondda to Leon Valley (Texas) | 4,857.72 mi (7,817.74 km) |
| Rhondda to Levelland (Texas) | 4,789.66 mi (7,708.22 km) |
| Rhondda to Levittown (New York) | 3,303.19 mi (5,315.97 km) |
| Rhondda to Levittown (Pennsylvania) | 3,382.95 mi (5,444.32 km) |
| Rhondda to Lewisburg (Tennessee) | 4,085.80 mi (6,575.45 km) |
| Rhondda to Lewiston (Idaho) | 4,605.25 mi (7,411.44 km) |
