UA5721 Grand RapidsGRR · 10:43 Green BayGRB · 11:00
UA5721 by United Airlines flies from Grand Rapids (GRR) to Green Bay (GRB).
Same number through GRR → ORD → GRB
scheduled from GRR
Where the minutes go
last 7 operations · gate push → arrivalThe 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 operation0 cancelled · 8 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at GRR and GRB 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 departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Grand Rapids to Green Bay flights today
same route · United AirlinesIf UA5721 is cancelled, these are the other United Airlines nonstop flights from Grand Rapids to Green Bay on the same day, 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 UA5721 actually runs
Pro Flight Search has tracked every published board update for UA5721 across the GRR and GRB boards: schedule changes, gate pushes and actual clocks. Usually lands ~11 min early. Based on 8 confirmed landings · 7/8 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 UA5721 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: N779SK, N788SK, N689SK, N723EV.
Board clocks recorded as GRR and GRB published them.
Planning around UA5721? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA5721 Grand Rapids to Green Bay on-time performance, measured from the GRR and GRB airport boards.
https://proflightsearch.com/flight/UA5721
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