UA2136 BostonBOS · 19:23 WashingtonIAD · 21:08
UA2136 by United Airlines flies from Boston (BOS) to Washington (IAD) for the Sun, Sep 6 departure.
departs BOS · 97 min late
board checked 15m ago · checking again in 45s
Where the minutes go
last 4 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 BOS and IAD 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 Boston to Washington flights today
same route · United AirlinesIf UA2136 is cancelled, these are the other United Airlines nonstop flights from Boston to Washington on the same day, with scheduled departure times in BOS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA2136 actually runs
Pro Flight Search has tracked every published board update for UA2136 across the BOS and IAD boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 4 confirmed landings · 3/4 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 UA2136 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: N39423, N68822, N37474.
Board clocks recorded as BOS and IAD published them.
Planning around UA2136? 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 — UA2136 Boston to Washington on-time performance, measured from the BOS and IAD airport boards.
https://proflightsearch.com/flight/UA2136
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