WhatsAbove / Cities / Colorado / Boulder
Live planes and satellites over Boulder, CO
The scope below is live: every trackable aircraft and satellite above Boulder right now, centered on 40.0150, -105.2706. Click anything for callsign, route, altitude, and more.
Tonight
Visible passes for the next 12 hours — sun-lit satellite, dark sky at your point.
Nearest major airports
With Rocky Mountain Metropolitan Airport (BJC) only 11 miles to the southeast, Boulder sits directly under active approach and departure paths — expect frequent low-altitude traffic between roughly 2,000 and 8,000 ft, with the direction of flow flipping when the wind changes.
About the sky over Boulder
Boulder (Colorado) has a population of about 106,803 and sits at 40.0150°N, 105.2706°W. Aircraft on this page come from the crowdsourced ADS-B network (coverage over this area depends on volunteer receivers nearby); satellites are computed in your browser from published orbital elements — several hundred are above the local horizon at any moment.
What planes fly over Boulder?
Most identifiable traffic over Boulder is tied to Rocky Mountain Metropolitan Airport (BJC), 11 miles to the southeast, plus FNL (33 mi) and DEN (33 mi). Add high-altitude cruise traffic passing over on airway routes. The live scope on this page shows each one with callsign, route, and altitude.
How many satellites are above Boulder right now?
Several hundred cataloged objects are above Boulder's horizon at any moment — mostly Starlink, plus stations, science payloads, and decades-old relics. Open the SPACE tab on this page for the live, computed count at 40.0150, -105.2706.
Can I see the ISS from Boulder?
Yes. The ISS passes over Colorado several times most weeks; visible passes happen when the station is sunlit while the sky over Boulder is dark — typically 1–3 hours after sunset or before sunrise. The Tonight panel on this page computes exact times, directions, and durations.