| SeaTac to Isabela (Puerto Rico) | 3,675.63 mi (5,915.35 km) |
| SeaTac to Iselin (New Jersey) | 2,391.89 mi (3,849.37 km) |
| SeaTac to Isla Vista (California) | 909.21 mi (1,463.24 km) |
| SeaTac to Issaquah (Washington) | 13.61 mi (21.90 km) |
| SeaTac to Ithaca (New York) | 2,233.00 mi (3,593.67 km) |
| SeaTac to Ives Estates (Florida) | 2,717.27 mi (4,373.03 km) |
| SeaTac to Jackson (Michigan) | 1,871.57 mi (3,012.00 km) |
| SeaTac to Jackson (Mississippi) | 1,975.62 mi (3,179.45 km) |
| SeaTac to Jackson (Missouri) | 1,788.17 mi (2,877.78 km) |
| SeaTac to Jackson (Tennessee) | 1,893.20 mi (3,046.81 km) |
| SeaTac to Jackson (Wyoming) | 621.46 mi (1,000.14 km) |
| SeaTac to Jacksonville (Alabama) | 2,109.63 mi (3,395.12 km) |
| SeaTac to Jacksonville (Arkansas) | 1,777.23 mi (2,860.18 km) |
| SeaTac to Jacksonville (Florida) | 2,446.41 mi (3,937.12 km) |
| SeaTac to Jacksonville (Illinois) | 1,677.16 mi (2,699.13 km) |
