Denver International Airport (DEN) long-term parking is generally considered safe but requires common-sense precautions typical of any major urban transit hub. The airport’s official lots (Pikes Peak, Longs Peak, and Economy) are well-lit, fenced, and patrolled 24/7 by airport security and the Denver Police Department. However, in 2026, there is still a regional trend of "opportunistic" thefts, such as catalytic converter removal or "smash-and-grab" incidents for valuables left in plain sight. To maximize safety, it is a peer-to-peer best practice to park in the East or West Garages if your budget allows, as these offer more frequent foot traffic and surveillance. If using the shuttle lots, choose a spot near the shuttle stops or under a light pole. Most importantly, never leave spare keys, garage door openers, or electronics visible in the cabin. While thousands of cars are parked safely daily, taking five minutes to "hide your stuff" is the best insurance against becoming a statistic in these sprawling open lots.