UA478United Airlines · BIL → DEN
live · 4m ago
Route confirmed United Airlines

UA478 BillingsBIL · 14:29 DenverDEN · 16:16

UA478 by United Airlines flies from Billings (BIL) to Denver (DEN) for the Mon, Aug 17 departure.

Right nowDescending into Denver · off blocks 14:43 · 14 min late
15:52

estimated arrival at DEN · local time · ~14 min from now

LivePosition · updated 4m ago
BIL70 mi · ~14 min leftDEN
23,400 ftAltitudedescending
503 mphSpeed437 kt
115°Direction

Live position · flown path, last 54 min

⚖ UA478 typically leaves +12 and lands −25. The air wins minutes back.

Where the minutes go

last 7 operations · gate push → arrival
0+148+296+444 min
08-17
+14 gate · −24 arrival
08-16
+6 gate · −32 arrival
08-15
+245 gate · +215 arrival
08-14
+444 gate · +410 arrival
08-13
+24 gate · −2 arrival
08-12
+127 gate · +99 arrival
08-11
+9 gate · −25 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −25 min · 0 cancelled · 15 operations tracked

The route today

live boards
BILBillingsHigh riskBIL delay board →
DENDenverOn-time likelyDEN delay board →
BIL→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
45%Chance of 15+ min delay
5.0%Chance of cancellation
+15 minAvg hub delay right now

Conditions at BIL and DEN are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Billings to Denver flights today

same route · United Airlines
UA5829departs 05:07
UA372departs 07:00
UA557departs 07:00
UA440departs 09:03
UA5463departs 10:30
UA5590departs 16:10

If UA478 is cancelled, these are the other United Airlines nonstop flights from Billings to Denver on the same day, with scheduled departure times in BIL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA478 actually runs

Pro Flight Search has tracked every published board update for UA478 across the BIL and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands ~22 min early. Based on 13 confirmed landings · 8/13 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how UA478 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
08-17BIL 14:29 14:43 (+14)DEN 16:16 15:52 (−24)
08-16BIL 14:29 14:35 (+6)DEN 16:16 15:44 (−32)
08-15BIL 14:29 18:34 (+245)DEN 16:16 19:51 (+215)
08-14BIL 14:29 21:53 (+444)DEN 16:16 23:06 (+410)
08-13BIL 14:29 14:53 (+24)DEN 16:16 16:14 (−2)
08-12BIL 14:29 16:36 (+127)DEN 16:16 17:55 (+99)
08-11BIL 14:29 14:38 (+9)DEN 16:16 15:51 (−25)
08-10BIL 14:25 14:34 (+9)DEN 16:15 15:45 (−30)
08-09BIL 14:25 17:23 (+178)DEN 16:15 18:32 (+137)
08-08BIL 14:25 17:31 (+186)DEN 16:15 18:53 (+158)
08-07BIL 14:25 14:26 (+1)DEN 16:15 15:34 (−41)
08-06BIL 14:25 14:37 (+12)DEN 16:15 15:42 (−33)
08-05BIL 14:25 14:33 (+8)DEN 16:15 15:40 (−35)
08-04BIL 14:25 14:35 (+10)DEN 16:15 15:50 (−25)
08-03BIL 14:25 14:31 (+6)DEN 16:15 15:38 (−37)

Aircraft

Recent tails: N69819, N76516, N14249, N18220.

Board clocks recorded as BIL and DEN published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — UA478 Billings to Denver on-time performance, measured from the BIL and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/UA478
How we measure this →