Flight number record
UA 2492
United Airlines · Las Vegas to Houston
- Route
- LAS → IAH
- Departs
- 12:14
- Flights
- 262
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2492, check with United Airlines.
UA 2492 lands a B+, 4 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 262 flights, with a median arrival 4 minutes early.
Key figures
On time
81.1%
Arrivals under 15 minutes late, of 259 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.38%
National rate is 1.81%
1 hour+ late
5.8%
National rate is 8.1%
These figures cover 262 flights between July 2025 and June 2026. The median arrival is 4 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Schedule
When UA 2492 flies
UA 2492 flies LAS to IAH without a single fixed slot. Its most common scheduled departure was 12:14, used on 57 of 262 flights, with 12:20 (45 flights) and 12:08 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 12:1457 flights21.8%
- Departs 12:2045 flights17.2%
- Departs 12:0842 flights16.0%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 12:14 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 2492 runs 2 points better at 81.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 2492 next to LAS to IAH
Every carrier on LAS to IAH combined arrived on time 83.9% of the time across 3,455 flights, so UA 2492 is 3 points behind it. United flew 2,601 flights on the same city pair under all its flight numbers, including this one, and those ran 85.6% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2492thin sample | 262 | 81.1% | 61 min | 0.38% | B+ |
| All United Airlines on LAS–IAH | 2,601 | 85.6% | 73 min | 0.58% | A+ |
| All carriers on LAS–IAH | 3,455 | 83.9% | 75 min | 0.93% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 2492 quarter by quarter
UA 2492 did not run the same all year. Its best quarter was Oct–Dec 2025 at 90.9% on time and its weakest Jul–Sep 2025 at 73.6%, a swing of 17 points on roughly 66 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202592 flights73.6%
- Oct–Dec 202555 flights90.9%
- Jan–Mar 202653 flights90.2%
- Apr–Jun 202662 flights75.8%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2492 did best on Saturday at 89.2% on time and worst on Friday at 73.7%. Each day rests on about 37 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 2492 runs late
One category carries most of the weight here. National Airspace System accounts for 57% of the 2,998 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 57%National Airspace System
- 23%Carrier
- 17%Late-arriving aircraft
- 4%Extreme weather
57% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,713 minutes out of 2,998, against a national NAS share of 21%. The split is drawn from 2,998 delay minutes reported on UA 2492.
Cancellations are rare at 0.38%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
5.8% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 1,222 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on eight other city pairs in the data, including SFO to LAS (229), RNO to SFO (117) and IAH to MIA (37), but none flew often enough under UA 2492 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAS to IAH only.
One caution: this is a thin sample. 262 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking UA 2492
For a booking, read UA 2492 as 81.1% on time with 0.38% cancelled over 262 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAS to IAH, every carrier and departure
- IAH to LAS, the return direction
- United Airlines 1711 on the same route88.1%
- United Airlines 1181 on the same route91.6%
- United Airlines 2608 on the same route95.3%
- Harry Reid International (LAS) delay statistics
- George Bush Intercontinental (IAH) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.