| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| SQA (SANTA YNEZ) | airport | United States | 34.61 | -120.08 | 671 | 0 | |
| SQB (Santa Ana Airport) | airport | 4.41 | -75.02 | 2192 | 0 | ||
| SQC (Southern Cross Airport) | airport | -31.24 | 119.36 | 354 | 0 | ||
| SQD (Sanqingshan Airport) | airport | 28.38 | 117.96 | 340 | 0 | ||
| SQE (San Luis De Palenque Airport) | airport | 5.40 | -71.70 | 551 | 0 | ||
| SQF (Solano Airport) | airport | 0.70 | -75.25 | 860 | 0 | ||
| SQG (SUSILO) | airport | Indonesia | 0.06 | 111.47 | 98 | 0 | |
| SQH (Na-San Airport) | airport | 21.22 | 104.03 | 2133 | 0 | ||
| SQJ (Shaxian Airport) | airport | 26.43 | 117.83 | 830 | 0 | ||
| SQL (SAN CARLOS) | airport | United States | 37.51 | -122.25 | 5 | 0 | |
| SQM (São Miguel do Araguaia Airport) | airport | -13.33 | -50.20 | 1249 | 0 | ||
| SQN (Emalamo Sanana Airport) | airport | -2.08 | 125.97 | 39 | 0 | ||
| SQO (STORUMAN) | airport | Sweden | 64.96 | 17.70 | 915 | 0 | |
| SQQ (SIAULIAI INTL) | airport | Lithuania | 55.89 | 23.39 | 443 | 0 | |
| SQR (SOROAKO) | airport | Indonesia | -2.53 | 121.36 | 1388 | 0 | |
| SQS (Matthew Spain Airport) | airport | 17.19 | -89.01 | 199 | 0 | ||
| SQT (China Strait Airstrip) | airport | -10.56 | 150.69 | 10 | 0 | ||
| SQU (Saposoa Airport) | airport | -6.96 | -76.77 | 982 | 0 | ||
| SQUARE AIR | airport | United States | 33.25 | -96.56 | 655 | 0 | |
| SQUARE K | airport | United States | 31.77 | -97.13 | 590 | 0 | |
| SQUAW CREEK | airport | United States | 38.09 | -87.35 | 410 | 0 | |
| SQUAW HARBOR | airport | United States | 55.23 | -160.55 | 0 | 0 | |
| SQUIBB | airport | United States | 18.15 | -65.79 | 16 | 0 | |
| SQUIER LANDING | airport | United States | 38.29 | -76.87 | 16 | 0 | |
| SQUIRES | airport | United States | 39.72 | -85.05 | 1000 | 0 | |
| SQUIRES | airport | United States | 29.90 | -91.70 | 15 | 0 | |
| SQUIRES AVIATION RANCH | airport | United States | 30.51 | -83.20 | 110 | 0 | |
| SQUIRREL CREEK RANCH | airport | United States | 29.26 | -99.35 | 970 | 0 | |
| SQV (SEQUIM VALLEY) | airport | United States | 48.10 | -123.19 | 144 | 0 | |
| SQW (SKIVE) | airport | Denmark | 56.55 | 9.17 | 74 | 0 | |
| SQX (São Miguel do Oeste Airport) | airport | -26.78 | -53.50 | 2180 | 0 | ||
| SQY (São Lourenço do Sul Airport) | airport | -31.38 | -52.03 | 28 | 0 | ||
| SQZ (SCAMPTON) | airport | United Kingdom | 53.31 | -0.55 | 202 | 0 |