UA1921United Airlines · ORD → IAH
live · 13m ago
Route confirmed United Airlines

UA1921 ChicagoORD · 17:53 HoustonIAH · 20:47

UA1921 by United Airlines flies from Chicago (ORD) to Houston (IAH) for the Sat, Sep 12 departure.

Right nowScheduled · gate C21
17:53

departs ORD · on schedule

Typical gate push+2 minmedian posted departure
Typical arrival−3 minmedian over 1 operations
Wins back in air~5 minmedian gate push vs arrival · how planes make up time →

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
38%Chance of 15+ min delay
1.1%Chance of cancellation
+13 minAvg hub delay right now

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. For this route and airline, 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 →

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
UA8265departs 00:15
UA1738departs 05:30
UA2357departs 05:30
UA1019departs 06:30
UA1231departs 07:30
UA535departs 08:50

If UA1921 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 posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA1921 actually runs

Pro Flight Search has tracked every published board update for UA1921 across the ORD and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed -3 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA1921 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
09-11ORD 17:53 17:55 (+2)IAH 20:47 20:44 (−3)

Board clocks recorded as ORD and IAH published them.

Planning around UA1921? 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 — UA1921 Chicago to Houston on-time performance, measured from the ORD and IAH airport boards.

Canonical URL
https://proflightsearch.com/flight/UA1921
How we measure this →