UA4255 WashingtonIAD · 17:27 HartfordBDL · 19:01
UA4255 by United Airlines flies from Washington (IAD) to Hartford (BDL).
scheduled from IAD
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAD and BDL 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 Washington to Hartford flights today
same route · United AirlinesIf UA4255 is cancelled, these are the other United Airlines nonstop flights from Washington to Hartford on the same day, with scheduled departure times in IAD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4255 actually runs
Pro Flight Search has tracked every published board update for UA4255 across the IAD and BDL boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left noticeably late (~26 min) but landed about 10 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4255 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: N33182, N14162.
Board clocks recorded as IAD and BDL published them.
Planning around UA4255? 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 — UA4255 Washington to Hartford on-time performance, measured from the IAD and BDL airport boards.
https://proflightsearch.com/flight/UA4255
.