The closest major airport to Longmont, Colorado is Denver International Airport (DEN / KDEN). This airport is in Denver, Colorado and is 43 miles from the center of Longmont, CO. If you're looking for international or domestic flights to DEN, check the airlines that fly to DEN.
43 miles: Denver International Airport - Denver, CO (DEN / KDEN)
79 miles: Cheyenne Regional Airport - Cheyenne, WY (CYS / KCYS)
112 miles: Colorado Springs Airport - Colorado Springs, CO (COS / KCOS)
125 miles: Laramie Regional Airport - Laramie, WY (LAR / KLAR)
5 miles: Longmont Municipal Airport - Longmont, CO (LGM)
14 miles: Boulder Municipal Airport - Boulder, CO (WBU / KBDU / BDU)
19 miles: Rocky Mountain Metropolitan Airport - Broomfield, CO (BJC / KBJC)
28 miles: Fort Collins-Loveland Municipal Airport - Fort Collins, CO (FNL / KFNL)
39 miles: Greeley-Weld County Airport - Greeley, CO (GXY / KGXY)
39 miles: Fort Collins Airpark - Ft. Collins, CO (FTC)
39 miles: Weld County Municipal - Greeley, CO (RYE)
50 miles: Buckley Air Force Base - Aurora, CO (BFK / KBKF / BKF)
56 miles: Centennial Airport - Denver, CO (APA / KAPA)
121 miles: Granby-Grand County Airport - Granby, CO (KGNB / GNB)
Travelmath helps you find the closest airport to any city, as well as a list of smaller local airports. You can use these pages to plan your trip and figure out the easiest way to get to your destination. Many times there are multiple airports near the city you want to visit, so you can often find a cheaper flight into a different airport. This is especially useful if you are getting a rental car, since it might be better to drive a bit farther in order to save money on airfare. If you're booking an international flight, you probably want the closest major airport, otherwise if you're a pilot you may be looking for a local airport. Use this tool along with the flight distance pages to plan your travel.