UAL8129

Flight

Status

Completed

Arrival confirmed via

ADS-B (ground reading)

Departure

Denver International Airport (DEN) — Denver, United States

Departed

2026-09-26 06:38 UTC

Arrival

Billings Logan International Airport (BIL) — Billings, United States

Distance flown

759 km

Straight-line distance

732 km

Approach distance

46 km

Registration

Type

Boeing 737-900

Seats

179 total (117 Economy, 42 Economy Plus, 20 First)

Max altitude

32,000 ft

Max ground speed

481 kt

Tracked

1h 2m · 758 km

Altitude (ft, max 32,000)

Ground speed (kt, max 481)

Altitude (ft, max 32,000)

Ground speed (kt, max 481)

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.

United Airlines (UAL)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-09-26 06:38 UTC	UAL8129	DEN → BIL Denver → Billings	N69826	Boeing 737-900	Completed	759 km
2026-09-24 20:10 UTC	UAL8129	DEN → IAH Denver → Houston	N57852	Boeing 737-300	Completed (landing presumed)	1465 km
2026-09-21 23:36 UTC	UAL8129	ORD → CLT Chicago → Charlotte	N86534	Boeing 737-800	Completed	1188 km
2026-09-18 01:17 UTC	UAL8129	ORD → BOS Chicago → Boston	N33209	Boeing 737-800	Completed	1544 km
2026-09-13 15:44 UTC	UAL8129	SFO → CMH San Francisco → Columbus	N53441	Boeing 737-900	Completed	3717 km
2026-08-14 01:50 UTC	UAL8129	DEN → EUG Denver → Eugene	N17448	Boeing 737 MAX 9	Completed	1716 km
2026-08-13 15:33 UTC	UAL8129	EWR → DEN Newark → Denver	N17448	Boeing 737 MAX 9	Completed	~7584 km est. (5940 km recorded)