YAFT.LIVE

UAL1540

TUS → DEN · Boeing 737-800 · United Airlines

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
Tucson International Airport / Morris Air National Guard Base (TUS) — Tucson, United States
Est. departure time
2026-09-12 15:06 UTC (approx.)
Arrival
Denver International Airport (DEN) — Denver, United States
Distance flown
1203 km
Straight-line distance
1029 km
Approach distance
38 km

Aircraft

Registration
N12225
Type
Boeing 737-800
Seats
166 total (102 Economy, 48 Economy Plus, 16 First)

Altitude & speed

Max altitude
34,950 ft
Max ground speed
497 kt
Tracked
1h 35m · 1,163 km
Altitude (ft, max 34,950)
018,87337,7460m30m1h 0m1h 30m
Ground speed (kt, max 497)
02685370m30m1h 0m1h 30m
Altitude (ft, max 34,950)
018,87337,7460m1h 0m
Ground speed (kt, max 497)
02685370m1h 0m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-03 12:20 UTC UAL1540 TUS → DEN
Tucson → Denver
 N64844 Boeing 737-900 Completed 1135 km
2026-10-02 12:23 UTC UAL1540 TUS → DEN
Tucson → Denver
 N77518 Boeing 737-800 Completed 1149 km
2026-10-01 12:20 UTC UAL1540 TUS → DEN
Tucson → Denver
 N37562 Boeing 737 MAX 9 Completed 1102 km
2026-09-30 12:16 UTC UAL1540 TUS → DEN
Tucson → Denver
 N65832 Boeing 737-900 Completed 1186 km
2026-09-29 12:21 UTC UAL1540 TUS → DEN
Tucson → Denver
 N37287 Boeing 737-800 Completed 1142 km
2026-09-28 12:27 UTC UAL1540 TUS → DEN
Tucson → Denver
 N73278 Boeing 737-800 Completed 1191 km
2026-09-27 12:16 UTC UAL1540 TUS → DEN
Tucson → Denver
 N37281 Boeing 737-800 Completed 1101 km
2026-09-26 12:20 UTC UAL1540 TUS → DEN
Tucson → Denver
 N77539 Boeing 737-800 Completed 1113 km
2026-09-25 12:24 UTC UAL1540 TUS → DEN
Tucson → Denver
 N37541 Boeing 737 MAX 9 Completed 1140 km
2026-09-24 12:23 UTC UAL1540 TUS → DEN
Tucson → Denver
 N77542 Boeing 737-800 Completed 1091 km
2026-09-23 12:52 UTC UAL1540 TUS → DEN
Tucson → Denver
 N33294 Boeing 737-800 Completed 1149 km
2026-09-22 12:38 UTC UAL1540 TUS → DEN
Tucson → Denver
 N37290 Boeing 737-800 Completed 1214 km
2026-09-21 16:07 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N14237 Boeing 737-800 Completed (landing presumed) 2609 km
2026-09-21 12:40 UTC UAL1540 TUS → DEN
Tucson → Denver
 N87507 Boeing 737-800 Completed 1132 km
2026-09-20 15:42 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N24212 Boeing 737-800 Completed (landing presumed) 2661 km
2026-09-20 12:36 UTC UAL1540 TUS → DEN
Tucson → Denver
 N36247 Boeing 737-800 Completed 1134 km
2026-09-19 15:44 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N24224 Boeing 737-800 Completed (landing presumed) 2667 km
2026-09-19 12:38 UTC UAL1540 TUS → DEN
Tucson → Denver
 N26226 Boeing 737-800 Completed 1316 km
2026-09-18 15:59 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N77539 Boeing 737-800 Completed 2731 km
2026-09-18 12:31 UTC UAL1540 TUS → DEN
Tucson → Denver
 N33284 Boeing 737-800 Completed 1138 km
2026-09-17 15:38 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N87527 Boeing 737-800 Completed 2690 km
2026-09-17 12:35 UTC UAL1540 TUS → DEN
Tucson → Denver
 N87513 Boeing 737-800 Completed 1198 km
2026-09-16 12:38 UTC UAL1540 TUS → DEN
Tucson → Denver
 N36272 Boeing 737-800 Completed 1152 km
2026-09-15 12:35 UTC UAL1540 TUS → DEN
Tucson → Denver
 N13227 Boeing 737-800 Completed 1164 km
2026-09-14 15:44 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N78285 Boeing 737-800 Completed 2795 km
2026-09-14 12:27 UTC UAL1540 TUS → DEN
Tucson → Denver
 N35204 Boeing 737-800 Completed 1276 km
2026-09-13 15:43 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N37298 Boeing 737-800 Completed 2711 km
2026-09-13 12:33 UTC UAL1540 TUS → DEN
Tucson → Denver
 N37290 Boeing 737-800 Completed 1271 km
2026-09-12 15:23 UTC UAL1540 TUS → DEN
Tucson → Denver
 N12225 Boeing 737-800 Completed 1203 km
2026-09-11 15:43 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N26232 Boeing 737-800 Completed 2744 km
2026-09-11 12:34 UTC UAL1540 TUS → DEN
Tucson → Denver
 N76529 Boeing 737-800 Completed 1166 km
2026-09-10 15:47 UTC UAL1540 DEN → ORF
Denver → Norfolk
 N26232 Boeing 737-800 Completed 2778 km
2026-09-10 12:47 UTC UAL1540 TUS → DEN
Tucson → Denver
 N68822 Boeing 737-900 Completed 1245 km
2026-09-09 12:48 UTC UAL1540 TUS → DEN
Tucson → Denver
 N77520 Boeing 737-800 Completed 1157 km
2026-09-08 12:35 UTC UAL1540 TUS → DEN
Tucson → Denver
 N17443 Boeing 737 MAX 9 Incomplete (signal lost) ~1170 km est. (505 km recorded)
2026-09-07 12:34 UTC UAL1540 TUS → DEN
Tucson → Denver
 N36207 Boeing 737-800 Completed 1142 km
2026-09-06 12:42 UTC UAL1540 TUS → DEN
Tucson → Denver
 N35236 Boeing 737-800 Completed 1134 km
2026-09-05 12:41 UTC UAL1540 TUS → DEN
Tucson → Denver
 N76288 Boeing 737-800 Completed 1222 km
2026-09-04 12:32 UTC UAL1540 TUS → DEN
Tucson → Denver
 N37298 Boeing 737-800 Completed 1191 km
2026-09-03 12:39 UTC UAL1540 TUS → DEN
Tucson → Denver
 N78506 Boeing 737-800 Completed 1159 km
2026-09-02 12:32 UTC UAL1540 TUS → DEN
Tucson → Denver
 N33294 Boeing 737-800 Completed 1175 km
2026-09-01 12:35 UTC UAL1540 TUS → DEN
Tucson → Denver
 N36247 Boeing 737-800 Completed 1170 km
2026-08-31 14:03 UTC UAL1540 TUS → DEN
Tucson → Denver
 N12225 Boeing 737-800 Completed 1221 km
2026-08-30 12:36 UTC UAL1540 TUS → DEN
Tucson → Denver
 N76515 Boeing 737-800 Completed 1112 km
2026-08-28 12:32 UTC UAL1540 TUS → DEN
Tucson → Denver
 N14240 Boeing 737-800 Completed 1197 km
2026-08-27 12:37 UTC UAL1540 TUS → DEN
Tucson → Denver
 N77295 Boeing 737-800 Completed 1214 km
2026-08-26 12:32 UTC UAL1540 TUS → DEN
Tucson → Denver
 N77539 Boeing 737-800 Completed 1224 km
2026-08-25 12:30 UTC UAL1540 TUS → DEN
Tucson → Denver
 N17233 Boeing 737-800 Completed 1182 km
2026-08-24 12:31 UTC UAL1540 TUS → DEN
Tucson → Denver
 N35204 Boeing 737-800 Completed 1145 km
2026-08-23 12:42 UTC UAL1540 TUS → DEN
Tucson → Denver
 N18243 Boeing 737-800 Completed 1687 km

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