Encounter Atlas
FAA pilot reports / Colorado
Pilot UFO reports over Colorado
13 reports from aircrews in the FAA's released UAP files, February 20, 2007 to June 15, 2024.
- June 15, 2024 22:22 UTCDenver, Colorado
UAL1835 · A319
Aircraft reported an unidentified aerial phenomenon below while S bound at 11,000 feet, 10 NM S of DEN. The unknown phenomenon was red and blue, 3 to 4 feet in diameter at approximately 10,000 feet. The UAP was not observed on ATC facility radar system.
- June 15, 2024 16:18 MDTDenver, Colorado
United 1835 · A319
PRELIM INFO FROM FAA OPS: DENVER, CO/UFO-UAP ACTIVITY/1622M/DENVER TRACON ADVISED UNITED 1835, A319, DEN - TYS, REPORTED A 4-FOOT RED AND BLUE UAP BELOW ACFT WHILE S BOUND AT 11,000 FEET 10 S DEN. NO EVASIVE ACTION REPORTED. UAP NOT OBERSVED ON ATC RADAR.
- February 18, 2024 10:49 UTCPueblo, ColoradoSeen on radar
N151SD · GLF4 · 41,000 ft
Aircraft reported an unidentified aerial phenomenon at their 12 O'clock while E bound at FL410, PUB120050. The unknown phenomenon was described as three lights traveling ahead of the flight moving erratically at approximately FL510 or higher. The UAP was not observed on TCAS. The UAP was observed on ATC facility radar system. AAL2514 (A21N, SFO..CLT) reported same lights.
- February 18, 2024 03:20 MSTLamar, ColoradoSeen on radar
N151Sd · GLF4 · 51,000 ft
PRELIM INFO FROM FAA OPS: LAMAR, CO/UFO-UAP ACTIVITY/0320M/DENVER ARTCC ADVISED N151SD, GULFSTREAM GLF4, LAS - TEB, REPORTED SEEING 3 BRIGHT LIGHTS MOVING VERY FAST WITH DRAMATIC MOVEMENTS BOTH VERTICALLY AND HORIZONTALLY AT FL510 OR HIGHER. PILOT FIRST REPORTED THE UAP 50 SE PUB AND THEN 40 ESE LAMAR. AMERICAN 2514, A21N, SFO-CLT, REPORTED SEEING THE SAME LIGHTS WHILE AT FL350. UAP NOT OBSERVED ON TCAS. HOWEVER, UAP WAS OBSERVED ON ATC FACILITY RADAR. N151SD REPORTED SEEING THE LIGHTS FOR 20 MINUTES.
- December 23, 2023 03:46 UTCDenver, Colorado
DAL750 · B738 · 32,000 ft
Aircraft reported an unidentified aerial phenomenon off the left side while NW bound at FL320, 50 NM West of DEN. The unknown phenomenon was a group of red lights circling each other at approximately FL400. The UAP was not observed on ATC facility radar system. AWO notified.
- December 22, 2023 21:00 MSTDenver, Colorado
Delta 750 · E55P · 32,000 ft
PRELIM INFO FROM FAA OPS: DENVER, CO/UFO-UAP ACTIVITY/2100M/DENVER ARTCC ADVISED DELTA 750, EMBRAER E55P, TPA - SEA, REPORTED AN UNIDENTIFIED AERIAL PHENOMENON FROM THE 9 O'CLOCK POSITION WHILE NW BOUND AT FL320 50 W DEN. NO EVASIVE ACTION TAKEN. NO LEO NOTIFICATION.
- August 25, 2023 00:25 MDTDenver, Colorado
United 369 · B38M · 34,000 ft
PRELIM INFO FROM FAA OPS: DENVER, CO/UFO-UAP ACTIVITY/0025M/DENVER ARTCC ADVISED UNITED 369, B38M, EWR LAS, REPORTED 2-4 UNIDENTIFIED AERIAL PHENOMENON'S OF WHITE LIGHTS WITH GREEN HUE MOVING IN CIRCULAR MOTION FROM ABOVE ACFT AT FL340 VCNTY DENVER. CMP477, SWA5298, AND N8TZ REPORTED SIMILAR SIGHTING'S. PIC'S REPORTED ACTIVITY APPEARED NEAR BIG DIPPER CONSTELLATION AT HIGH ALTITUDE. NO EVASIVE ACTION TAKEN. NO LEO NOTIFICATION.
- March 21, 2023 09:24 UTCColorado Springs, Colorado
COS ATCT reported an unidentified aerial phenomenon approximately 12NM NE of COS at an unknown altitude. The unknown phenomenon was described as 2 flashing lights traveling together. No air traffic in the area. ZDV reported they had no traffic in the area either. TY, AWO advised
- October 9, 2022 02:47 UTCNear Denver, Colorado
NKS75 · A20N · 34,000 ft
Aircraft reported an unidentified aerial phenomenon off the12 o'clock while W bound at FL340. The unknown phenomenon was traveling W bound at a high rate of speed between their aircraft and the other two aircraft 30 miles ahead. The aircraft was only visible for 10-15 seconds.
Original report (PDF) National Archives catalog (placed approximately)
- February 21, 2021 19:59 UTCTrinidad, Colorado
AAL2292 · A320 · 36,000 ft
1918 PIC reported UFO at FL360 while WB TAD180030. It was described as a long cylindrical object that was EB and went over the top of the aircraft. UFO reporting center notified.
- October 16, 2009 04:00 UTCDenver, Colorado
1730: Father called ZDV directly to inform ATC that his six year old son had gone airborne in a helium filled balloonthat he had made to resemble a UFO, which was previously anchored at the family's home. 1845: ZDV called to advise DEN of situation. 1855: D.E.N. requested D01 and COS come up on the DEN. Local LEOs aware of the situation. D01 is working chase plane which will relay periodic updates. 1857: Balloon 18N of DEN @ 12,000-13000ft. The balloon was airborne for approximately 30-miles and reached a height of nearly 13,000ft. A TV helo tracked the balloon for almost the entirety of its flight. Two ANG helos joined in on thetrail at around the 15-mile point of the flight. The balloon descended slowly during the last 10-15-miles of its flight. The balloon landed softly in a clearing on the DEN026@10.4-miles. As of 2024Z there still hasn't been any sign of the missing child. The DEN/SOSCs have accumulated the data (ADAPT track data history and print outs, along with potential locations requiring TFRs for SAR missions.) TSOC will advise the moment they hear from local LEOs when/if the child is located. 2121: As the TV pictures shown never depicted a basket on the balloon, we queried ZDV to check data to see where the TV helo first engaged the Balloon. The determination was that the helo first filmed the balloon within 1-1.5-miles of the launch site (child's home). ZDV has forwarded the information to the proper authorities for the possible SAR. None of our resources have the ability to depict altitude data due to the ACFT being without an operating transponder or mode-c readout. FYSA: It has been noted that the family of the boy who was reported by his father to be aboard the balloon has in the past been part of a Reality TV show. 2210: CNN reports boy found at home, safe and was never aboard the balloon.
- October 19, 2007 12:44 UTCDenver, Colorado
BKA626 · LJ35, GATES LEARJET, 35
UFO-ZDV relayed a report from the pilot of BKA626. Pilot stated that while observing Ursa Major an unidentified object white in color passedabovein opposite direction. Pilot stated that object did not have navigational lights. ZDV reports no IFR or VFR traffic was in the area RADAR or NON-RADAR. No WX returns on theTSD ina400 NM radius. FAA NCRCC asked ATCSCC for assistance in getting a TSD picture from 0700 saved to a file and emailed to FAA NCRCC.
- February 20, 2007 08:30 UTCHayden, Colorado
34,000 ft
ZDV reports at least 12 aircraft are reporting a UFO between FL340 and 400 in the Hayden CO area. No radar return is being observed. The UFO is apparently tracking the aircraft.