G4128Allegiant Air · BIL → LAS
live · 19m ago
Route confirmed Allegiant Air

G4128 BillingsBIL Las VegasLAS

G4128 by Allegiant Air flies from Billings (BIL) to Las Vegas (LAS).

Right nowNext departure Friday Operates Mon Fri
21:47

scheduled from BIL

The route today

live boards
BILBillingsModerate riskBIL delay board →
LASLas VegasOn-time likelyLAS delay board →
BIL→LASevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
46%Chance of 15+ min delay
5.6%Chance of cancellation
+31 minTypical airport delay in this weather

Conditions at BIL and LAS are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →

Tomorrow at Billings

Forecast

Wed 4 Nov, local date

High11°Clikely 8°C to 13°C
Low0°Clikely −1°C to 2°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Las Vegas

Forecast

Wed 4 Nov, local date

High21°Clikely 19°C to 23°C
Low11°Clikely 10°C to 13°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

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 Las Vegas flights

same route · Allegiant Air
G41642departs 17:51 · Mon, Fri

If G4128 is cancelled, this is the other Allegiant Air nonstop flight from Billings to Las Vegas, with scheduled departure times in BIL local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How G4128 actually runs

Pro Flight Search has tracked every published board update for G4128 across the BIL and LAS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.8/100. Based on airport operations, weather, and cached board history at BIL and LAS.

The verdict above is that record speaking, so it reflects how G4128 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around G4128? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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: G4128 Billings to Las Vegas on-time performance, measured from the BIL and LAS airport boards.

Canonical URL
https://proflightsearch.com/flight/G4128
How we measure this →