| SeaTac to Ascoli Piceno | 5,642.32 mi (9,080.43 km) |
| SeaTac to Asola | 5,422.64 mi (8,726.89 km) |
| SeaTac to Asolo | 5,424.14 mi (8,729.30 km) |
| SeaTac to Assemini | 5,738.57 mi (9,235.34 km) |
| SeaTac to Assisi | 5,605.18 mi (9,020.67 km) |
| SeaTac to Asti | 5,385.66 mi (8,667.39 km) |
| SeaTac to Atessa | 5,710.88 mi (9,190.77 km) |
| SeaTac to Atri | 5,668.17 mi (9,122.04 km) |
| SeaTac to Atripalda | 5,790.26 mi (9,318.52 km) |
| SeaTac to Augusta | 6,024.86 mi (9,696.07 km) |
| SeaTac to Aulla | 5,470.91 mi (8,804.57 km) |
| SeaTac to Aurisina | 5,471.13 mi (8,804.94 km) |
| SeaTac to Avellino | 5,789.37 mi (9,317.09 km) |
| SeaTac to Aversa | 5,772.00 mi (9,289.13 km) |
| SeaTac to Avezzano | 5,687.98 mi (9,153.93 km) |
