| Swansea to Jacksonville (North Carolina) | 745.57 mi (1,199.88 km) |
| Swansea to Jacksonville (Texas) | 543.54 mi (874.75 km) |
| Swansea to Jacksonville Beach (Florida) | 751.53 mi (1,209.48 km) |
| Swansea to James Island (South Carolina) | 691.87 mi (1,113.46 km) |
| Swansea to Jamestown (New York) | 616.40 mi (992.00 km) |
| Swansea to Jamestown (North Dakota) | 726.10 mi (1,168.54 km) |
| Swansea to Janesville (Wisconsin) | 290.19 mi (467.01 km) |
| Swansea to Jasmine Estates (Florida) | 823.49 mi (1,325.27 km) |
| Swansea to Jasper (Alabama) | 358.23 mi (576.51 km) |
| Swansea to Jasper (Indiana) | 165.10 mi (265.70 km) |
| Swansea to Jefferson (Georgia) | 467.97 mi (753.12 km) |
| Swansea to Jefferson (Louisiana) | 593.58 mi (955.27 km) |
| Swansea to Jefferson City (Missouri) | 118.33 mi (190.44 km) |
| Swansea to Jefferson Hills (Pennsylvania) | 549.56 mi (884.44 km) |
| Swansea to Jefferson Valley-Yorktown (New York) | 877.13 mi (1,411.60 km) |
