| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| UNA (HOTEL TRANSAMERICA) | airport | Brazil | -15.36 | -39.00 | 20 | 0 | |
| UNAA (ABAKAN) | airport | Russia | 53.74 | 91.39 | 831 | 0 | |
| UNAI | airport | Brazil | -16.36 | -46.93 | 1998 | 0 | |
| UNALAKLEET | airport | United States | 63.89 | -160.80 | 21 | 0 | |
| UNALASKA | airport | United States | 53.90 | -166.54 | 22 | 0 | |
| UNAU (Shushenskoye Airport) | airport | 53.38 | 92.04 | 0 | |||
| UNB Autotrac Heliport | airport | -15.77 | -47.87 | 3435 | 0 | ||
| UNBA (Kosh-Agach Airport) | airport | 49.95 | 88.62 | 0 | |||
| UNBB (BARNAUL) | airport | Russia | 53.36 | 83.54 | 838 | 0 | |
| UNBC (Akkem Heliport) | airport | 49.91 | 86.54 | 6695 | 0 | ||
| UNBG (Gorno-Altaysk Airport) | airport | 51.97 | 85.83 | 965 | 0 | ||
| UNBI (Biysk Airport) | airport | 52.48 | 85.34 | 620 | 0 | ||
| UNBM (Volchikha Airport) | airport | 52.03 | 80.34 | 0 | |||
| UNBR (Rubtsovsk Airport) | airport | 51.58 | 81.20 | 709 | 0 | ||
| UNBU (Ust-Koksa Airport) | airport | 50.26 | 85.71 | 0 | |||
| UNC (Unguia Airport) | airport | 8.03 | -77.08 | 120 | 0 | ||
| UNCC (Novosibirsk North Airport) | airport | 55.09 | 82.91 | 558 | 0 | ||
| UNCLE CHUCK'S | airport | United States | 41.92 | -88.79 | 880 | 0 | |
| UND (KONDUZ) | airport | Afghanistan | 36.67 | 68.91 | 1457 | 0 | |
| UNDERLAND AIRSTRIP | airport | United States | 44.15 | -93.27 | 1145 | 0 | |
| UNDERWOOD | airport | United States | 47.47 | -101.13 | 2035 | 0 | |
| UNDLIN AIRSTRIP | airport | United States | 48.69 | -101.35 | 1575 | 0 | |
| UNE (Qacha's Nek Airport) | airport | -30.11 | 28.67 | 6100 | 0 | ||
| UNEA (Anzhero-Sudzhensk Heliport) | airport | 56.15 | 86.05 | 748 | 0 | ||
| UNEE (KEMEROVO) | airport | Russia | 55.27 | 86.11 | 863 | 0 | |
| UNG (Kiunga Airport) | airport | -6.13 | 141.28 | 88 | 0 | ||
| UNGER FIELD | airport | United States | 39.36 | -83.42 | 940 | 0 | |
| UNHA (Aksenovo Airport) | airport | 58.93 | 101.57 | 580 | 0 | ||
| UNHT (Tura Airport) | airport | 64.28 | 100.20 | 600 | 0 | ||
| UNI (Union Island International Airport) | airport | 12.60 | -61.41 | 16 | 0 | ||
| UNIA (Aydara Airport) | airport | 58.53 | 88.40 | 373 | 0 | ||
| UNIAO DA VITORIA | airport | Brazil | -26.23 | -51.07 | 2467 | 0 | |
| UNIB (Baykit Airport) | airport | 61.68 | 96.36 | 853 | 0 | ||
| UNICID - Universidade Cidade de São Paulo Heliport | airport | -23.54 | -46.56 | 2529 | 0 | ||
| UNICORN | airport | United States | 30.66 | -90.23 | 147 | 0 | |
| UNICORN PLACE | airport | United States | 30.84 | -86.28 | 260 | 0 | |
| UNIFI | airport | United States | 36.14 | -80.65 | 990 | 0 | |
| UNII (Yeniseysk Airport) | airport | 58.47 | 92.11 | 253 | 0 | ||
| UNIJ (Yartsevo Airport) | airport | 60.26 | 90.19 | 210 | 0 | ||
| UNION CO | airport | United States | 40.22 | -83.35 | 1021 | 0 | |
| UNION COUNTY TROY SHELTON FLD | airport | United States | 34.69 | -81.64 | 610 | 0 | |
| UNION EVA | airport | United States | 33.66 | -118.06 | 79 | 0 | |
| UNION GENERAL HOSPITAL | airport | United States | 34.89 | -83.96 | 1911 | 0 | |
| UNION HOSPITAL | airport | United States | 39.49 | -87.41 | 480 | 0 | |
| UNION HOSPITAL | airport | United States | 40.52 | -81.45 | 926 | 0 | |
| UNION MEDICAL CENTER | airport | United States | 33.21 | -92.67 | 265 | 0 | |
| UNION MEMORIAL HOSPITAL INC | airport | United States | 34.97 | -80.52 | 600 | 0 | |
| UNION MUNI | airport | United States | 32.58 | -89.14 | 512 | 0 | |
| UNION PARISH | airport | United States | 32.72 | -92.34 | 121 | 0 | |
| UNIONTOWN HOSPITAL | airport | United States | 39.90 | -79.74 | 1115 | 0 | |
| UNIP (Podkamennaya Tunguska Airport) | airport | 61.59 | 89.99 | 213 | 0 | ||
| UNIS (Severo-Eniseysk Airport) | airport | 60.37 | 93.01 | 1706 | 0 | ||
| UNIT (Tura Mountain Airport) | airport | 64.33 | 100.43 | 2044 | 0 | ||
| UNITED BANK PLAZA | airport | United States | 33.49 | -112.07 | 1100 | 0 | |
| UNITED CA BANK DATA PROCESSING OPS | airport | United States | 34.07 | -118.29 | 367 | 0 | |
| UNITED COAL | airport | United States | 37.30 | -82.13 | 1020 | 0 | |
| UNITED HOSPITAL DISTRICT | airport | United States | 43.63 | -94.10 | 1089 | 0 | |
| UNITED SAMARITANS MEDICAL CENTER | airport | United States | 40.14 | -87.65 | 612 | 0 | |
| UNITED TECHNOLOGY CORP. | airport | United States | 41.77 | -72.67 | 351 | 0 | |
| UNITED TELEPHONE SYSTEM | airport | United States | 45.71 | -121.53 | 100 | 0 | |
| UNITY | airport | Canada | 52.45 | -109.19 | 2090 | 0 | |
| UNITY | airport | United States | 44.45 | -118.19 | 3975 | 0 | |
| UNITY AERODROME | airport | United States | 34.80 | -80.68 | 640 | 0 | |
| UNITY HEALTH CENTER | airport | United States | 35.36 | -96.94 | 1073 | 0 | |
| UNITY HEALTHCARE | airport | United States | 41.43 | -91.05 | 633 | 0 | |
| UNIV OF ILLINOIS WILLARD | airport | United States | 40.04 | -88.28 | 754 | 0 | |
| UNIV OF MEDICINE & DENTISTRY ROOFTOP | airport | United States | 40.74 | -74.19 | 237 | 0 | |
| UNIV OF TENNESSEE LIFESTAR SWEETWATER | airport | United States | 35.61 | -84.46 | 947 | 0 | |
| UNIV OF TENNESSEE MEDICAL CENTER | airport | United States | 35.94 | -83.94 | 924 | 0 | |
| UNIV. OF NE MEDICAL CENTER | airport | United States | 41.25 | -95.98 | 1160 | 0 | |
| UNIVERSAL MINE | airport | United States | 39.61 | -87.46 | 550 | 0 | |
| UNIVERSITY | airport | United States | 38.53 | -121.79 | 69 | 0 | |
| UNIVERSITY | airport | United States | 38.53 | -121.79 | 68 | 0 | |
| UNIVERSITY AIRPARK | airport | United States | 42.84 | -84.48 | 856 | 0 | |
| UNIVERSITY HEALTH SYSTEM | airport | United States | 29.51 | -98.58 | 994 | 0 | |
| UNIVERSITY HOSPITAL | airport | United States | 34.75 | -92.32 | 445 | 0 | |
| UNIVERSITY HOSPITAL | airport | United States | 38.25 | -85.74 | 465 | 0 | |
| UNIVERSITY HOSPITAL | airport | United States | 32.33 | -90.17 | 344 | 0 | |
| UNIVERSITY HOSPITAL | airport | United States | 39.65 | -79.96 | 1120 | 0 | |
| UNIVERSITY HOSPITAL/SICU | airport | United States | 39.14 | -84.50 | 937 | 0 | |
| UNIVERSITY HOSPITALS & CLINICS | airport | United States | 38.94 | -92.33 | 730 | 0 | |
| UNIVERSITY HOSPITALS OF CLEVELAND | airport | United States | 41.51 | -81.60 | 761 | 0 | |
| UNIVERSITY MEDICAL CENTER | airport | United States | 33.91 | -117.20 | 1563 | 0 | |
| UNIVERSITY MEDICAL CENTER | airport | United States | 33.64 | -101.89 | 3231 | 0 | |
| UNIVERSITY MEDICAL CENTER HOSPITAL | airport | United States | 32.24 | -110.95 | 2468 | 0 | |
| UNIVERSITY MEDICAL CENTER-SOUTHERN NEVADA | airport | United States | 36.16 | -115.17 | 2096 | 0 | |
| UNIVERSITY OF ALABAMA HOSPITAL | airport | United States | 33.51 | -86.80 | 787 | 0 | |
| UNIVERSITY OF CHICAGO HOSPITALS | airport | United States | 41.79 | -87.60 | 665 | 0 | |
| UNIVERSITY OF FLORIDA | airport | United States | 29.64 | -82.35 | 125 | 0 | |
| UNIVERSITY OF IOWA HOSPITALS & CLINIC | airport | United States | 41.66 | -91.55 | 840 | 0 | |
| UNIVERSITY OF IOWA HOSPITALS & CLINIC NO2 | airport | United States | 41.67 | -91.60 | 790 | 0 | |
| UNIVERSITY OF KANSAS MEDICAL CENTER | airport | United States | 39.06 | -94.61 | 958 | 0 | |
| UNIVERSITY OF MARYLAND SHOCK TRAUMA CENTER | airport | United States | 39.29 | -76.63 | 166 | 0 | |
| UNIVERSITY OF MN HOSPITALS & CLINICS | airport | United States | 44.97 | -93.23 | 890 | 0 | |
| UNIVERSITY OF NM HOSPITAL | airport | United States | 35.09 | -106.62 | 5273 | 0 | |
| UNIVERSITY OF OKLAHOMA WESTHEIMER | airport | United States | 35.25 | -97.47 | 1182 | 0 | |
| UNIVERSITY OF PITT MEDICAL LANDING AREA | airport | United States | 41.95 | -78.67 | 1481 | 0 | |
| UNIVERSITY OF VIRGINIA HOSPITAL | airport | United States | 38.03 | -78.50 | 490 | 0 | |
| UNIVERSITY OXFORD | airport | United States | 34.38 | -89.54 | 452 | 0 | |
| UNIVERSITY PARK | airport | United States | 40.85 | -77.85 | 1239 | 0 | |
| UNIVERSITY POINTE MEDICAL OFFICE BLDG | airport | United States | 39.36 | -84.37 | 883 | 0 | |
| UNIW (Vanavara Airport) | airport | 60.36 | 102.32 | 892 | 0 | ||
| UNK (UNALAKLEET) | airport | United States | 63.89 | -160.80 | 21 | 0 | |
| UNKB (Boguchany Airport) | airport | 58.38 | 97.47 | 446 | 0 | ||
| UNKI (Kodinsk Airport) | airport | 58.48 | 99.09 | 0 | |||
| UNKK (Krasnoyarsk Severniy Airport) | airport | 56.04 | 92.91 | 676 | 0 | ||
| UNKL (YEMELYANOVO) | airport | Russia | 56.17 | 92.49 | 942 | 0 | |
| UNKM (Cheremshanka Airport) | airport | 56.18 | 92.54 | 0 | |||
| UNKNOWN FIELD | airport | United States | 42.28 | -71.55 | 432 | 0 | |
| UNKO (Sharypovo Airport) | airport | 55.45 | 89.17 | 1099 | 0 | ||
| UNKS (Achinsk Airport) | airport | 56.27 | 90.57 | 1033 | 0 | ||
| UNKY (Kyzyl Airport) | airport | 51.67 | 94.40 | 2123 | 0 | ||
| UNLL (Kolpashevo Airport) | airport | 58.33 | 82.93 | 243 | 0 | ||
| UNLW (Novy Vasyugan Airport) | airport | 58.59 | 76.50 | 246 | 0 | ||
| UNN (RANONG) | airport | Thailand | 9.78 | 98.59 | 57 | 0 | |
| UNNE (Yeltsovka Airport) | airport | 55.09 | 83.00 | 617 | 0 | ||
| UNNT (TOLMACHEVO) | airport | Russia | 55.01 | 82.65 | 365 | 0 | |
| UNO MAS RANCH | airport | United States | 28.21 | -99.13 | 380 | 0 | |
| UNOK (Kalachinsk Airport) | airport | 55.02 | 74.61 | 361 | 0 | ||
| UNOO (OMSK) | airport | Russia | 54.97 | 73.31 | 311 | 0 | |
| UNOS (Omsk Severny Airport) | airport | 54.97 | 73.56 | 0 | |||
| UNOT (Tara Airport) | airport | 56.90 | 74.30 | 253 | 0 | ||
| UNOW (Tevriz Airport) | airport | 57.50 | 72.33 | 217 | 0 | ||
| UNQA (Aban Airport) | airport | 56.68 | 96.12 | 844 | 0 | ||
| UNR (Öndörkhaan Airport) | airport | 47.30 | 110.61 | 3410 | 0 | ||
| UNSB (181 Sobolinaya Helipad) | airport | 58.46 | 79.53 | 234 | 0 | ||
| UNSICKER | airport | United States | 40.43 | -86.15 | 816 | 0 | |
| UNSR (1 Razryvno-Moiseevskaya Helipad) | airport | 58.09 | 76.01 | 357 | 0 | ||
| UNSS (Strezhevoy Airport) | airport | 60.71 | 77.66 | 164 | 0 | ||
| UNT (Unst Airport) | airport | 60.75 | -0.85 | 0 | |||
| UNTIED ACRES | airport | United States | 42.23 | -88.77 | 800 | 0 | |
| UNTT (Bogashevo Airport) | airport | 56.38 | 85.21 | 597 | 0 | ||
| UNU (DODGE CO) | airport | United States | 43.43 | -88.70 | 934 | 0 | |
| UNWW (Spichenkovo Airport) | airport | 53.81 | 86.88 | 1024 | 0 | ||
| UNZICKER | airport | United States | 40.83 | -89.12 | 745 | 0 |