UA512United Airlines · IAH → DCA
live · 24m ago
Route confirmed United Airlines

UA512 HoustonIAH · 07:45 WashingtonDCA · 11:53

UA512 by United Airlines flies from Houston (IAH) to Washington (DCA) for the Sat, Oct 31 departure.

Right nowEn route to Washington · off blocks 07:39 · 6 min early
En route

en route from IAH to DCA

En routeUA512 · position estimated
IAHHoustonDCAWashington
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 07:39.

Typical gate push−6 minmedian posted departure
Typical arrival−12 minmedian over 3 operations
Wins back in air~6 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 3 operations · gate push → arrival
0+30+60+90 min
10-31
−6 gate · −12 arrival
10-24
−6 gate · −12 arrival
10-23
−5 gate · −7 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
IAHHoustonOn-time likelyIAH delay board →
DCAWashingtonOn-time likelyDCA delay board →
IAH→DCAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
36%Chance of 15+ min delay
3.4%Chance of cancellation
+5 minTypical airport delay in this weather

Driven mainly by DCA (Washington), currently flying VFR (visual). 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 on this route

Forecast

Houston to Washington with United Airlines · Sun 1 Nov, local date

Outlook: below usual
Chance a departure is cancelled
0.5%0.4× usual
Chance a departure leaves 60+ min late
5.8%0.8× usual

Forecast weather: 44% chance of fog at Houston

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 7 departures a day on this route with this airline. · 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 Houston to Washington flights today

same route · United Airlines
UA1966departs 07:45
UA6346departs 07:45
UA5548departs 09:32
UA4031departs 09:43
UA6112departs 09:43
UA654departs 12:05

If UA512 is cancelled, these are the other United Airlines nonstop flights from Houston to Washington on the same day, with scheduled departure times in IAH 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 UA512 actually runs

Pro Flight Search has tracked every published board update for UA512 across the IAH and DCA boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: landed -10 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA512 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-31IAH 07:45 07:39 (−6)DCA 11:53 11:41 (−12)
10-24IAH 07:45 07:39 (−6)DCA 11:53 11:41 (−12)
10-23IAH 07:45 07:40 (−5)DCA 11:53 11:46 (−7)

Aircraft

Recent tails: N18243, N77538.

Board clocks recorded as IAH and DCA published them.

Planning around UA512? 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: UA512 Houston to Washington on-time performance, measured from the IAH and DCA airport boards.

Canonical URL
https://proflightsearch.com/flight/UA512
How we measure this →