UA1784 Las VegasLAS · 10:25 WashingtonIAD · 18:30
UA1784 by United Airlines flies from Las Vegas (LAS) to Washington (IAD) for the Mon, Aug 17 departure.
Same number through LAS → EWR → IAD
estimated arrival at IAD · local time · ~26 min from now
position updated 3m ago · checking again in 90s
Live position · flown path, last 5h 58m
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 · 14 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at LAS 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.
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 Las Vegas to Washington flights today
same route · United AirlinesIf UA1784 is cancelled, these are the other United Airlines nonstop flights from Las Vegas to Washington on the same day, with scheduled departure times in LAS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA1784 actually runs
Pro Flight Search has tracked every published board update for UA1784 across the LAS and IAD boards: schedule changes, gate pushes and actual clocks. Usually lands ~11 min late. Based on 13 confirmed landings · 7/13 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 UA1784 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: N27334, N27266, N17289, N37348.
Board clocks recorded as LAS and IAD published them.
Planning around UA1784? 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 — UA1784 Las Vegas to Washington on-time performance, measured from the LAS and IAD airport boards.
https://proflightsearch.com/flight/UA1784
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