G4339 Grand RapidsGRR · 19:02 HarrisburgMDT · 19:38
G4339 by Allegiant Air flies from Grand Rapids (GRR) to Harrisburg (MDT).
Same number through GRR → BNA → MDT
scheduled from GRR
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at GRR and MDT 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Grand Rapids to Harrisburg flights
same route · Allegiant AirIf G4339 is cancelled, these are the other Allegiant Air nonstop flights from Grand Rapids to Harrisburg, with scheduled departure times in GRR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How G4339 actually runs
Pro Flight Search has tracked every published board update for G4339 across the GRR and MDT boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left right on schedule but landed about 27 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how G4339 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N198NV, N293NV.
Board clocks recorded as GRR and MDT published them.
Planning around G4339? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — G4339 Grand Rapids to Harrisburg on-time performance, measured from the GRR and MDT airport boards.
https://proflightsearch.com/flight/G4339
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