| SeaTac to Devnya | 5,908.70 mi (9,509.14 km) |
| SeaTac to Dimitrovgrad | 5,949.16 mi (9,574.25 km) |
| SeaTac to Dobrich | 5,890.49 mi (9,479.84 km) |
| SeaTac to Dospat | 5,947.77 mi (9,572.01 km) |
| SeaTac to Dupnitsa | 5,888.00 mi (9,475.82 km) |
| SeaTac to Elhovo | 5,959.23 mi (9,590.46 km) |
| SeaTac to Etropole | 5,868.79 mi (9,444.91 km) |
| SeaTac to Gabrovo | 5,891.64 mi (9,481.68 km) |
| SeaTac to Gorna Oryahovitsa | 5,881.16 mi (9,464.82 km) |
| SeaTac to Gotse Delchev | 5,944.67 mi (9,567.01 km) |
| SeaTac to Harmanli | 5,962.22 mi (9,595.26 km) |
| SeaTac to Haskovo | 5,956.07 mi (9,585.37 km) |
| SeaTac to Ihtiman | 5,890.60 mi (9,480.00 km) |
| SeaTac to Isperih | 5,863.60 mi (9,436.55 km) |
| SeaTac to Kardzhali | 5,970.59 mi (9,608.74 km) |
