| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| SIX (Singleton Airport) | airport | -32.60 | 151.19 | 46 | 0 | ||
| SIX 666 RANCH | airport | United States | 33.64 | -100.35 | 1775 | 0 | |
| SIX FLAGS GREAT ADVENTURE | airport | United States | 40.15 | -74.43 | 120 | 0 | |
| SIX MILE VOLUNTEER FIRE DEPARTMENT | airport | United States | 31.25 | -93.78 | 240 | 0 | |
| SIX OAKS | airport | United States | 35.47 | -82.45 | 2015 | 0 | |
| SIX PONDS | airport | United States | 42.84 | -74.18 | 1125 | 0 | |
| SIX SPRINGS RANCH | airport | United States | 44.48 | -120.92 | 3780 | 0 | |
| SIX-MILE LAKE | airport | United States | 61.29 | -149.81 | 85 | 0 | |
| SIXA (Fazenda União Suzanópolis Airport) | airport | -20.53 | -51.09 | 1398 | 0 | ||
| SIXB (Fazenda Ilha Verde Airport) | airport | -18.51 | -57.40 | 312 | 0 | ||
| SIXC (Embrase Heliport) | airport | -23.53 | -46.70 | 2621 | 0 | ||
| SIXD (Fazenda da Paz Airport) | airport | -30.84 | -55.57 | 913 | 0 | ||
| SIXE (Aeroclube de Eldorado do Sul Airport) | airport | -30.05 | -51.44 | 33 | 0 | ||
| SIXF (Fazenda Soledade Airport) | airport | -17.38 | -47.54 | 2717 | 0 | ||
| SIXG (Fazenda Pouso Alegre Airport) | airport | -18.03 | -47.46 | 2812 | 0 | ||
| SIXH (Hospital Unimed Heliport) | airport | -26.28 | -48.85 | 17 | 0 | ||
| SIXI (Fazenda Antônio Andrade Airport) | airport | -15.18 | -40.09 | 827 | 0 | ||
| SIXL (Fazenda São Francisco Airport) | airport | -13.31 | -52.89 | 1152 | 0 | ||
| SIXM (Comunidade São Leopoldo do Tapajós Airport) | airport | -4.97 | -56.92 | 492 | 0 | ||
| SIXN (Soufer Heliport) | airport | -22.98 | -47.10 | 2155 | 0 | ||
| SIXO (Fazenda Nossa Senhora de Fátima Airport) | airport | -13.98 | -59.66 | 1070 | 0 | ||
| SIXP (Fazenda Paiaguás Airport) | airport | -14.07 | -57.45 | 2038 | 0 | ||
| SIXQ (Fazenda São João Airport) | airport | -23.85 | -55.44 | 1500 | 0 | ||
| SIXR (Fazenda Santa Maria Heliport) | airport | -23.55 | -47.37 | 2598 | 0 | ||
| SIXT (Girassol Heliport) | airport | -23.88 | -45.45 | 14 | 0 | ||
| SIXTY SIX | airport | United States | 35.90 | -83.58 | 1010 | 0 | |
| SIXU (Condomínio New Place of Business Heliport) | airport | -23.60 | -46.64 | 2804 | 0 | ||
| SIXV (Fazenda Rancho do Planalto Airport) | airport | -18.14 | -53.36 | 2789 | 0 | ||
| SIXW (Cimento Poty Airport) | airport | -7.53 | -34.86 | 1 | 0 | ||
| SIXX (Usinas Braco Norte Airport) | airport | -9.66 | -54.95 | 1159 | 0 | ||
| SIXY (Fábrica Fortaleza Heliport) | airport | -3.90 | -38.50 | 66 | 0 | ||
| SIXZ (Fazenda Spartacus Airport) | airport | -24.00 | -48.61 | 2346 | 0 |