UAL431

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

Gallatin Field (BZN) — Bozeman, United States

Est. departure time

2026-09-05 22:08 UTC (approx.)

Arrival

Denver International Airport (DEN) — Denver, United States

Distance flown

1029 km

Straight-line distance

843 km

Approach distance

111 km

Aircraft

Registration

N18223

Type

Boeing 737-800

Seats

166 total (102 Economy, 48 Economy Plus, 16 First)

Altitude & speed

Max altitude

39,000 ft

Max ground speed

459 kt

Tracked

1h 36m · 999 km

Altitude (ft, max 39,000)

Ground speed (kt, max 459)

Altitude (ft, max 39,000)

Ground speed (kt, max 459)

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

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-02 01:31 UTC	UAL431	DEN → GJT Denver → Grand Junction	N37413	Boeing 737-900	Completed	403 km
2026-10-01 22:52 UTC	UAL431	BZN → DEN Bozeman → Denver	N77525	Boeing 737-800	Completed	1133 km
2026-10-01 20:27 UTC	UAL431	DEN → BZN Denver → Bozeman	N77525	Boeing 737-800	Completed	927 km
2026-10-01 01:35 UTC	UAL431	DEN → GJT Denver → Grand Junction	N75425	Boeing 737-900	Completed	403 km
2026-09-30 22:28 UTC	UAL431	BZN → DEN Bozeman → Denver	N73276	Boeing 737-800	Completed	1050 km
2026-09-30 01:17 UTC	UAL431	DEN → GJT Denver → Grand Junction	N81449	Boeing 737-900	Incomplete (signal lost)	394 km
2026-09-29 22:36 UTC	UAL431	BZN → DEN Bozeman → Denver	N68843	Boeing 737-900	Completed	980 km
2026-09-29 01:19 UTC	UAL431	DEN → GJT Denver → Grand Junction	N69885	Boeing 737-900	Completed	384 km
2026-09-28 22:37 UTC	UAL431	BZN → DEN Bozeman → Denver	N33262	Boeing 737-800	Completed	890 km
2026-09-27 23:15 UTC	UAL431	BZN → DEN Bozeman → Denver	N14228	Boeing 737-800	Completed	1135 km
2026-09-27 01:55 UTC	UAL431	DEN → GJT Denver → Grand Junction	N37471	Boeing 737-900	Incomplete (signal lost)	392 km
2026-09-26 22:59 UTC	UAL431	BZN → DEN Bozeman → Denver	N77295	Boeing 737-800	Completed	966 km
2026-09-26 01:45 UTC	UAL431	BZN → DEN Bozeman → Denver	N37252	Boeing 737-800	Completed	1022 km
2026-09-25 02:11 UTC	UAL431	DEN → GJT Denver → Grand Junction	N77431	Boeing 737-900	Completed	403 km
2026-09-24 23:34 UTC	UAL431	BZN → DEN Bozeman → Denver	N76265	Boeing 737-800	Completed	956 km
2026-09-24 01:44 UTC	UAL431	DEN → GJT Denver → Grand Junction	N78540	Boeing 737-800	Completed	392 km
2026-09-23 22:51 UTC	UAL431	BZN → DEN Bozeman → Denver	N76288	Boeing 737-800	Completed	899 km
2026-09-23 02:00 UTC	UAL431	DEN → GJT Denver → Grand Junction	N37267	Boeing 737-800	Completed	359 km
2026-09-22 22:41 UTC	UAL431	BZN → DEN Bozeman → Denver	N853UA	Airbus A319	Completed	908 km
2026-09-21 23:11 UTC	UAL431	BZN → DEN Bozeman → Denver	N76269	Boeing 737-800	Completed	899 km
2026-09-20 23:26 UTC	UAL431	BZN → DEN Bozeman → Denver	N69885	Boeing 737-900	Completed	918 km
2026-09-19 23:31 UTC	UAL431	BZN → DEN Bozeman → Denver	N73275	Boeing 737-800	Completed	912 km
2026-09-19 00:57 UTC	UAL431	BZN → DEN Bozeman → Denver	N27419	Boeing 737 MAX 9	Completed	1148 km
2026-09-18 02:02 UTC	UAL431	DEN → GJT Denver → Grand Junction	N12218	Boeing 737-800	Completed	460 km
2026-09-17 22:38 UTC	UAL431	BZN → DEN Bozeman → Denver	N77520	Boeing 737-800	Completed	991 km
2026-09-16 22:32 UTC	UAL431	BZN → DEN Bozeman → Denver	N36207	Boeing 737-800	Completed	957 km
2026-09-16 01:36 UTC	UAL431	DEN → GJT Denver → Grand Junction	N77518	Boeing 737-800	Completed	427 km
2026-09-15 22:31 UTC	UAL431	BZN → DEN Bozeman → Denver	N892UA	Airbus A319	Completed	936 km
2026-09-15 01:35 UTC	UAL431	DEN → GJT Denver → Grand Junction	N73259	Boeing 737-800	Completed	414 km
2026-09-14 22:32 UTC	UAL431	BZN → DEN Bozeman → Denver	N78511	Boeing 737-800	Completed	1039 km
2026-09-14 01:52 UTC	UAL431	DEN → GJT Denver → Grand Junction	N34222	Boeing 737-800	Completed	404 km
2026-09-13 22:39 UTC	UAL431	BZN → DEN Bozeman → Denver	N73256	Boeing 737-800	Completed	1069 km
2026-09-13 01:27 UTC	UAL431	DEN → GJT Denver → Grand Junction	N27205	Boeing 737-800	Completed	401 km
2026-09-12 22:33 UTC	UAL431	BZN → DEN Bozeman → Denver	N17229	Boeing 737-800	Completed	924 km
2026-09-12 19:35 UTC	UAL431	DEN → BZN Denver → Bozeman	N17229	Boeing 737-800	Completed	961 km
2026-09-12 01:46 UTC	UAL431	DEN → GJT Denver → Grand Junction	N33209	Boeing 737-800	Completed	458 km
2026-09-11 22:34 UTC	UAL431	BZN → DEN Bozeman → Denver	N76522	Boeing 737-800	Completed	1122 km
2026-09-11 01:34 UTC	UAL431	DEN → GJT Denver → Grand Junction	N26232	Boeing 737-800	Completed	365 km
2026-09-10 23:03 UTC	UAL431	BZN → DEN Bozeman → Denver	N76529	Boeing 737-800	Completed	1011 km
2026-09-10 01:25 UTC	UAL431	DEN → GJT Denver → Grand Junction	N36207	Boeing 737-800	Completed (landing presumed)	414 km
2026-09-09 22:40 UTC	UAL431	BZN → DEN Bozeman → Denver	N47434	Boeing 737 MAX 9	Completed	1001 km
2026-09-08 01:47 UTC	UAL431	DEN → GJT Denver → Grand Junction	N73256	Boeing 737-800	Incomplete (signal lost)	394 km
2026-09-07 22:38 UTC	UAL431	BZN → DEN Bozeman → Denver	N78506	Boeing 737-800	Completed	1356 km
2026-09-07 02:33 UTC	UAL431	DEN → GJT Denver → Grand Junction	N35271	Boeing 737-800	Completed	410 km
2026-09-06 22:45 UTC	UAL431	BZN → DEN Bozeman → Denver	N17435	Boeing 737 MAX 9	Completed	1101 km
2026-09-06 01:35 UTC	UAL431	DEN → GJT Denver → Grand Junction	N73256	Boeing 737-800	Completed	404 km
2026-09-05 22:26 UTC	UAL431	BZN → DEN Bozeman → Denver	N18223	Boeing 737-800	Completed	1029 km
2026-09-05 01:23 UTC	UAL431	DEN → GJT Denver → Grand Junction	N37277	Boeing 737-800	Completed	339 km
2026-09-04 22:52 UTC	UAL431	? → DEN ? → Denver	N12218	Boeing 737-800	Completed	670 km
2026-09-04 02:02 UTC	UAL431	DEN → GJT Denver → Grand Junction	N16217	Boeing 737-800	Completed (landing presumed)	405 km