UA539United Airlines · ORD → IAH
live · 9m ago
Route confirmed United Airlines

UA539 ChicagoORD · 07:00 HoustonIAH · 09:40

UA539 by United Airlines flies from Chicago (ORD) to Houston (IAH) for the Wed, Nov 11 departure.

Same number through ORD → DFW → IAH

Right nowEn route to Houston · off blocks 06:48 · 12 min early
En route

en route from ORD to IAH

En routeUA539 · position estimated
ORDChicagoIAHHouston
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 06:48 · typical taxi-out at ORD ≈ 8.6 min.

Typical gate push−5 minmedian posted departure

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
11-11
−12 gate
11-10
+60 gate
11-09
−6 gate
11-08
−5 gate

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
ORDChicagoOn-time likelyORD delay board →
IAHHoustonOn-time likelyIAH delay board →
ORD→IAHevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
34%Chance of 15+ min delay
0.9%Chance of cancellation
+5 minTypical airport delay in this weather

Conditions at ORD and IAH 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 Chicago

Forecast

Thu 12 Nov, local date

High9°Clikely 8°C to 10°C
Low4°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 Dallas-Fort Worth

Forecast

Thu 12 Nov, local date

High25°Clikely 24°C to 26°C
Low12°Clikely 11°C to 13°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
UA2032departs 08:40
UA2809departs 10:40
UA441departs 11:47
UA8122departs 12:40
UA2290departs 13:30
UA8190departs 13:30

If UA539 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 UA539 actually runs

Pro Flight Search has tracked every published board update for UA539 across the ORD and IAH boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 5 confirmed landings · 4/5 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA539 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
11-11ORD 07:00 06:48 (−12)IAH
11-10ORD 07:00 08:00 (+60)IAH
11-09ORD 07:00 06:54 (−6)IAH
11-08ORD 07:00 06:55 (−5)IAH

Aircraft

Recent tails: N484UA, N831UA, N14559, N436UA.

Board clocks recorded as ORD and IAH published them.

Planning around UA539? 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: UA539 Chicago to Houston on-time performance, measured from the ORD and IAH airport boards.

Canonical URL
https://proflightsearch.com/flight/UA539
How we measure this →