UA4279 PittsburghPIT · 10:25 WashingtonIAD · 11:33
UA4279 by United Airlines flies from Pittsburgh (PIT) to Washington (IAD).
scheduled from PIT
⚖ UA4279 typically leaves +9 and lands −21. The air wins minutes back.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 −21 min · 0 cancelled · 13 operations tracked
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by PIT (Pittsburgh), currently flying LIFR (low instrument). 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 Pittsburgh to Washington flights today
same route · United AirlinesIf UA4279 is cancelled, these are the other United Airlines nonstop flights from Pittsburgh to Washington on the same day, with scheduled departure times in PIT local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4279 actually runs
Pro Flight Search has tracked every published board update for UA4279 across the PIT and IAD boards: schedule changes, gate pushes and actual clocks. Usually lands ~19 min early. Based on 13 confirmed landings · 11/13 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 UA4279 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: N24128, N14168, N14162, N27190.
Board clocks recorded as PIT and IAD published them.
Planning around UA4279? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — UA4279 Pittsburgh to Washington on-time performance, measured from the PIT and IAD airport boards.
https://proflightsearch.com/flight/UA4279
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