UA4172 New YorkEWR · 10:30 WashingtonDCA · 11:59
UA4172 by United Airlines flies from New York (EWR) to Washington (DCA) for the Thu, Sep 17 departure.
departs EWR · on schedule
board checked 102m ago · checking again in 45s
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 operationmedian arrival +6 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at EWR and DCA 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 New York to Washington flights today
same route · United AirlinesIf UA4172 is cancelled, these are the other United Airlines nonstop flights from New York to Washington on the same day, with scheduled departure times in EWR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4172 actually runs
Pro Flight Search has tracked every published board update for UA4172 across the EWR and DCA boards: schedule changes, gate pushes and actual clocks. Usually lands ~9 min late. Based on 14 confirmed landings · 8/14 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA4172 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: N561GJ, N548GJ, N524GJ, N520GJ.
Board clocks recorded as EWR and DCA published them.
Planning around UA4172? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4172 New York to Washington on-time performance, measured from the EWR and DCA airport boards.
https://proflightsearch.com/flight/UA4172
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