YV4055 WashingtonIAD · 17:35 LouisvilleSDF · 18:56
YV4055 by Mesa Airlines flies from Washington (IAD) to Louisville (SDF) for the Sat, Nov 14 departure.
estimated arrival at SDF · local time · ~52 min from now
position updated 5m ago · checking again in 90s
Live position · flown path, last 20 min
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 +14 min · 0 cancelled · 13 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAD and SDF are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →
Tomorrow at Washington
ForecastSun 15 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at SDF
ForecastSun 15 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Washington to Louisville flights today
same route · Mesa AirlinesIf YV4055 is cancelled, this is the other Mesa Airlines nonstop flight from Washington to Louisville on the same day, with scheduled departure times in IAD local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How YV4055 actually runs
Pro Flight Search has tracked every published board update for YV4055 across the IAD and SDF boards: schedule changes, gate pushes and actual clocks. Usually lands ~18 min late. Based on 13 confirmed landings · 4/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how YV4055 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: N85355, N88359, N89313, N86312.
Board clocks recorded as IAD and SDF published them.
Planning around YV4055? 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: YV4055 Washington to Louisville on-time performance, measured from the IAD and SDF airport boards.
https://proflightsearch.com/flight/YV4055
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