UA3980United Airlines · IAD → SDF
updated 1h ago
Route confirmed United Airlines

UA3980 WashingtonIAD LouisvilleSDF · 14:47

UA3980 by United Airlines flies from Washington (IAD) to Louisville (SDF) for the Mon, Nov 9 departure.

Right nowExpected in Louisville · CanceledUncertain
14:47

arrival expected at SDF · on schedule

The route today

live boards
IADWashingtonModerate riskIAD delay board →
SDFLouisvilleOn-time likelySDF delay board →
IAD→SDFevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
36%Chance of 15+ min delay
2.5%Chance of cancellation
+4 minTypical airport delay in this weather

Conditions 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

Forecast

Tue 10 Nov, local date

High21°Clikely 19°C to 22°C
Low3°Clikely 2°C to 5°C

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 Louisville

Forecast

Tue 10 Nov, local date

High21°Clikely 20°C to 22°C
Low6°Clikely 5°C to 8°C

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 departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Washington to Louisville flights today

same route · United Airlines
UA3685departs 08:37
UA4055departs 17:35

If UA3980 is cancelled, these are the other United Airlines nonstop flights 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 UA3980 actually runs

Pro Flight Search has tracked every published board update for UA3980 across the IAD and SDF boards: schedule changes, gate pushes and actual clocks. Combined risk score: 21.6/100. Based on airport operations, weather, and cached board history at IAD and SDF.

The verdict above is that record speaking, so it reflects how UA3980 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around UA3980? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: UA3980 Washington to Louisville on-time performance, measured from the IAD and SDF airport boards.

Canonical URL
https://proflightsearch.com/flight/UA3980
How we measure this →