| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| SYA (EARECKSON AS) | airport | United States | 52.71 | 174.11 | 98 | 0 | |
| SYAH (Aishalton Airport) | airport | 2.49 | -59.31 | 587 | 0 | ||
| SYAMSUDIN NOOR | airport | Indonesia | -3.44 | 114.76 | 66 | 0 | |
| SYAN (Annai Airport) | airport | 3.96 | -59.12 | 301 | 0 | ||
| SYAP (Apoteri Airport) | airport | 4.01 | -58.60 | 301 | 0 | ||
| SYAW (Awaruwaunau Airport) | airport | 2.65 | -59.20 | 797 | 0 | ||
| SYBERT FARM | airport | United States | 30.79 | -97.66 | 841 | 0 | |
| SYBR (Baramita Airport) | airport | 7.37 | -60.49 | 328 | 0 | ||
| SYBT (Bartica A Airport) | airport | 6.37 | -58.64 | 3 | 0 | ||
| SYC (Shiringayoc/Hacienda Hda Mejia Airport) | airport | -11.90 | -69.17 | 748 | 0 | ||
| SYCAMORE | airport | United States | 30.72 | -90.36 | 180 | 0 | |
| SYCAMORE FIRE DEPT | airport | United States | 42.00 | -88.69 | 825 | 0 | |
| SYCAMORE HOSPITAL | airport | United States | 39.50 | -84.25 | 940 | 0 | |
| SYCAMORE STRIP | airport | United States | 32.63 | -97.35 | 760 | 0 | |
| SYCJ (CHEDDI JAGAN INTL) | airport | Guyana | 6.50 | -58.25 | 95 | 0 | |
| SYD (SYDNEY INTL) | airport | Australia | -33.95 | 151.18 | 21 | 0 | |
| SYDAL ACRES | airport | United States | 30.92 | -91.17 | 200 | 0 | |
| SYDNEY | airport | Canada | 46.16 | -60.05 | 203 | 0 | |
| SYDNEY BANKSTOWN | airport | Australia | -33.92 | 150.99 | 29 | 0 | |
| SYDNEY INTL | airport | Australia | -33.95 | 151.18 | 21 | 0 | |
| SYDW (Dadanawa Airport) | airport | 2.83 | -59.52 | 372 | 0 | ||
| SYE (Sadah Airport) | airport | 16.97 | 43.73 | 5938 | 0 | ||
| SYEB (Ebini Airport) | airport | 5.62 | -57.77 | 147 | 0 | ||
| SYERSTON | airport | United Kingdom | 53.02 | -0.91 | 228 | 0 | |
| SYF (Silva Bay Seaplane Base) | airport | 49.15 | -123.70 | 0 | 0 | ||
| SYGO (Ogle Airport) | airport | 6.81 | -58.11 | 10 | 0 | ||
| SYH (Syangboche Airport) | airport | 27.81 | 86.71 | 12400 | 0 | ||
| SYI (BOMAR FLD SHELBYVILLE MUNI) | airport | United States | 35.56 | -86.44 | 800 | 0 | |
| SYIB (Imbaimadai Airport) | airport | 5.71 | -60.29 | 1646 | 0 | ||
| SYJ (SIRJAN) | airport | Iran | 29.55 | 55.67 | 5846 | 0 | |
| SYK (Stykkishólmur Airport) | airport | 65.06 | -22.79 | 42 | 0 | ||
| SYKK (Kurukabaru Airport) | airport | 4.72 | -59.98 | 3198 | 0 | ||
| SYKM (Kamarang Airport) | airport | 5.87 | -60.61 | 1601 | 0 | ||
| SYKR (Karanambo Airport) | airport | 3.75 | -59.31 | 300 | 0 | ||
| SYKS (Karasabai Airport) | airport | 4.03 | -59.53 | 731 | 0 | ||
| SYKT (Kato Airport) | airport | 4.65 | -59.83 | 2299 | 0 | ||
| SYKTYVKAR | airport | Russia | 61.65 | 50.85 | 342 | 0 | |
| SYKW (Kwakwani Airport) | airport | 5.28 | -58.05 | 147 | 0 | ||
| SYKZ (Konawaruk Airport) | airport | 5.27 | -58.99 | 230 | 0 | ||
| SYLD (LINDEN) | airport | Guyana | 5.97 | -58.27 | 180 | 0 | |
| SYLP (Lumid Pau Airport) | airport | 2.39 | -59.44 | 656 | 0 | ||
| SYLT (LETHEM) | airport | Guyana | 3.37 | -59.79 | 351 | 0 | |
| SYLVANIA | airport | United States | 42.70 | -87.96 | 785 | 0 | |
| SYLVANMIR FARMS | airport | United States | 29.82 | -83.57 | 8 | 0 | |
| SYLVESTER | airport | United States | 31.56 | -83.90 | 403 | 0 | |
| SYM (Pu'er Simao Airport) | airport | 22.79 | 100.96 | 0 | |||
| SYMB (Mabaruma Airport) | airport | 8.20 | -59.78 | 45 | 0 | ||
| SYMD (Mahdia Airport) | airport | 5.28 | -59.15 | 300 | 0 | ||
| SYMM (Monkey Mountain Airport) | airport | 4.48 | -59.68 | 1456 | 0 | ||
| SYMMS | airport | United States | 43.57 | -116.78 | 2680 | 0 | |
| SYMN (Manari Airport) | airport | 3.43 | -59.57 | 300 | 0 | ||
| SYMONS | airport | United States | 44.84 | -106.82 | 3681 | 0 | |
| SYMP (Mountain Point Airport) | airport | 3.00 | -59.63 | 400 | 0 | ||
| SYMR (Matthews Ridge Airport) | airport | 7.49 | -60.18 | 324 | 0 | ||
| SYMW (Marurawana Airport) | airport | 2.73 | -59.15 | 1017 | 0 | ||
| SYN (STANTON AIRFIELD) | airport | United States | 44.48 | -93.02 | 920 | 0 | |
| SYNA (New Amsterdam Airport) | airport | 6.24 | -57.47 | 3 | 0 | ||
| SYO (SHONAI) | airport | Japan | 38.81 | 139.79 | 86 | 0 | |
| SYOR (Orinduik Airport) | airport | 4.73 | -60.03 | 1797 | 0 | ||
| SYP (RUBEN CANTU) | airport | Panama | 8.09 | -80.95 | 272 | 0 | |
| SYPM (Paramakatoi Airport) | airport | 4.70 | -59.71 | 2600 | 0 | ||
| SYPR (Paruma Airport) | airport | 5.82 | -61.06 | 1765 | 0 | ||
| SYQ (TOBIAS BOLANOS INTL) | airport | Costa Rica | 9.96 | -84.14 | 3287 | 0 | |
| SYR (SYRACUSE HANCOCK INTL) | airport | United States | 43.11 | -76.11 | 421 | 0 | |
| SYRACUSE HAMILTON CO MUNI | airport | United States | 37.99 | -101.75 | 3322 | 0 | |
| SYRACUSE HANCOCK INTL | airport | United States | 43.11 | -76.11 | 421 | 0 | |
| SYRACUSE HOSPITAL | airport | United States | 40.67 | -96.19 | 1120 | 0 | |
| SYRACUSE SUBURBAN | airport | United States | 43.27 | -76.18 | 400 | 0 | |
| SYROS | airport | Greece | 37.42 | 24.95 | 236 | 0 | |
| SYS (Saskylakh Airport) | airport | 71.93 | 114.08 | 0 | |||
| SYSC (Sand Creek Airport) | airport | 2.99 | -59.51 | 360 | 0 | ||
| SYSK (Skeldon Airport) | airport | 5.86 | -57.15 | 13 | 0 | ||
| SYT (SAINT YAN) | airport | France | 46.41 | 4.01 | 796 | 0 | |
| SYU (Warraber Island Airport) | airport | -10.21 | 142.82 | 3 | 0 | ||
| SYVRUD | airport | United States | 42.88 | -89.40 | 1000 | 0 | |
| SYW (Sehwan Sharif Airport) | airport | 26.47 | 67.72 | 121 | 0 | ||
| SYWI (Wichabai Airport) | airport | 2.87 | -59.53 | 518 | 0 | ||
| SYX (PHOENIX INTL) | airport | China | 18.30 | 109.41 | 92 | 0 | |
| SYY (STORNOWAY) | airport | United Kingdom | 58.22 | -6.33 | 26 | 0 | |
| SYZ (SHIRAZ SHAHID DASTGHAIB INTL) | airport | Iran | 29.54 | 52.59 | 4920 | 0 |