UA1231United Airlines · ORD → IAH
live · 8m ago
Route confirmed United Airlines

UA1231 ChicagoORD HoustonIAH

UA1231 by United Airlines flies from Chicago (ORD) to Houston (IAH).

Right nowNext departure today Operates daily
06:59

scheduled from ORD

The route today

live boards
ORDChicagoModerate riskORD delay board →
IAHHoustonOn-time likelyIAH delay board →
ORD→IAHevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
34%Chance of 15+ min delay
2.0%Chance of cancellation
+10 minTypical airport delay in this weather

Driven mainly by ORD (Chicago), currently flying MVFR (marginal 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 at Chicago

Forecast

Fri 13 Nov, local date

High6°Clikely 4°C to 8°C
Low2°Clikely 0°C to 4°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 IAH

Forecast

Fri 13 Nov, local date

High26°Clikely 23°C to 27°C
Low10°Clikely 9°C to 12°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 Chicago to Houston flights today

same route · United Airlines
UA3905departs 01:00
UA1982departs 05:30
UA2833departs 06:55
UA2483departs 07:29
UA6082departs 09:00
UA535departs 09:21

If UA1231 is cancelled, these are the other United Airlines nonstop flights from Chicago to Houston on the same day, with scheduled departure times in ORD 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 UA1231 actually runs

Pro Flight Search has tracked every published board update for UA1231 across the ORD and IAH boards: schedule changes, gate pushes and actual clocks. Combined risk score: 38.0/100. Based on airport operations, weather, and cached board history at ORD and IAH.

The verdict above is that record speaking, so it reflects how UA1231 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around UA1231? 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: UA1231 Chicago to Houston on-time performance, measured from the ORD and IAH airport boards.

Canonical URL
https://proflightsearch.com/flight/UA1231
How we measure this →