Flight number record
UA 1945
United Airlines · Houston to Los Angeles
- Route
- IAH → LAX
- Departs
- 14:20
- Flights
- 333
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1945, check with United Airlines.
UA 1945 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 333 flights, with a median arrival 11 minutes early.
Set against the rest of the country, UA 1945's record is 10 points better than the US average of 77.6%. That gap is worth roughly 97 fewer late arrivals for every thousand flights.
Key figures
On time
87.3%
Arrivals under 15 minutes late, of 330 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.81%
1 hour+ late
5.5%
National rate is 8.1%
These figures cover 333 flights between July 2025 and June 2026. The median arrival is 11 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 1945 flies
UA 1945 flies IAH to LAX without a single fixed slot. Its most common scheduled departure was 14:20, used on 125 of 333 flights, with 14:25 (71 flights) and 15:02 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 14:20125 flights37.5%
- Departs 14:2571 flights21.3%
- Departs 15:0255 flights16.5%
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 14:20 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and UA 1945 runs 15 points better at 87.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 1945 next to IAH to LAX
Every carrier on IAH to LAX combined arrived on time 83.6% of the time across 5,260 flights, so UA 1945 is 4 points ahead of it. United flew 3,416 flights on the same city pair under all its flight numbers, including this one, and those ran 84.4% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1945thin sample | 333 | 87.3% | 68 min | 0.00% | A+ |
| All United Airlines on IAH–LAX | 3,416 | 84.4% | 59 min | 0.32% | B+ |
| All carriers on IAH–LAX | 5,260 | 83.6% | 64 min | 0.57% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1945 quarter by quarter
UA 1945 did not run the same all year. Its best quarter was Oct–Dec 2025 at 93.4% on time and its weakest Apr–Jun 2026 at 82.0%, a swing of 11 points on roughly 83 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 flights82.4%
- Oct–Dec 202592 flights93.4%
- Jan–Mar 202687 flights89.7%
- Apr–Jun 202662 flights82.0%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1945 did best on Tuesday at 91.7% on time and worst on Saturday at 79.2%. Each day rests on about 48 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 1945 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2,857 reported delay minutes.
- 36%Carrier
- 36%Late-arriving aircraft
- 22%Extreme weather
- 6%National Airspace System
Extreme weather accounts for 22% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.5 times the usual weather exposure. The split is drawn from 2,857 delay minutes reported on UA 1945.
Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
5.5% 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 a little over an hour, which a normal layover absorbs.
The 1,379 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 LAX to SFO (49), ORD to IAH (37) and MCO to IAH (31), but none flew often enough under UA 1945 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to LAX only.
One caution: this is a thin sample. 333 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 1945
For a booking, UA 1945 has one of the better records a US domestic flight can show: 87.3% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- IAH to LAX, every carrier and departure
- LAX to IAH, the return direction
- United Airlines 2460 on the same route87.4%
- Delta Air Lines 1216 on the same route94.2%
- United Airlines 1743 on the same route80.5%
- United Airlines 2600 on the same route91.8%
- United Airlines 2095 on the same route73.6%
- United Airlines 469 on the same route87.0%
- George Bush Intercontinental (IAH) delay statistics
- Los Angeles International (LAX) 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
- Why the first flight of the morning is statistically safest
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.