G4575Allegiant Air · BOS → GRR
live · 14m ago
Route confirmed Allegiant Air

G4575 BostonBOS · 11:32 Grand RapidsGRR · 13:45

G4575 by Allegiant Air flies from Boston (BOS) to Grand Rapids (GRR).

Right nowNext departure Thursday Operates Thu Sun
11:32

scheduled from BOS

Wins back in air~3 minmedian gate push vs arrival · how planes make up time →

The route today

live boards
BOSBostonOn-time likelyBOS delay board →
GRRGrand RapidsOn-time likelyGRR delay board →
BOS→GRRevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
64%Chance of 15+ min delay
11%Chance of cancellation
+48 minTypical airport delay in this weather

Driven mainly by BOS (Boston), currently flying LIFR (low instrument). 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 Boston

Forecast

Sun 8 Nov, local date

High14°Clikely 13°C to 15°C
Low8°Clikely 7°C to 10°C
  • Gusts to 30 kt

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 Grand Rapids

Forecast

Sun 8 Nov, local date

High13°Clikely 11°C to 14°C
Low3°Clikely 2°C to 4°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 Boston to Grand Rapids flights today

same route · Allegiant Air
G4581departs 11:24

If G4575 is cancelled, this is the other Allegiant Air nonstop flight from Boston to Grand Rapids on the same day, with scheduled departure times in BOS 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 G4575 actually runs

Pro Flight Search has tracked every published board update for G4575 across the BOS and GRR boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: landed +15 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how G4575 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
11-01BOS 11:32GRR 13:45 13:39 (−6)
10-25BOS 11:32 11:46 (+14)GRR 13:45 14:13 (+28)

Aircraft

Recent tails: N291NV, N196NV.

Board clocks recorded as BOS and GRR published them.

Planning around G4575? 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: G4575 Boston to Grand Rapids on-time performance, measured from the BOS and GRR airport boards.

Canonical URL
https://proflightsearch.com/flight/G4575
How we measure this →