Flight number record
UA 1945
United Airlines · Houston to Los Angeles
- Route
- IAH → LAX
- Departs
- 14:20
- Flights
- 286
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 286 flights, with a median arrival 11 minutes early.
Set against the rest of the country, UA 1945's record is 11 points better than the US average of 77.3%. That gap is worth roughly 111 fewer late arrivals for every thousand flights.
Key figures
On time
88.4%
Arrivals under 15 minutes late, of 284 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
4.2%
National rate is 8.3%
These figures cover 286 flights between September 2025 and August 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.
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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 76 of 286 flights, with 14:25 (71 flights) and 15:02 (55 flights) next.
- Departs 14:2076 flights26.6%
- Departs 14:2571 flights24.8%
- Departs 15:0255 flights19.2%
Scale runs 0% to 100%.
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 71.9%, and UA 1945 runs 17 points better at 88.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
UA 1945 next to IAH to LAX
Every carrier on IAH to LAX combined arrived on time 84.1% of the time across 5,147 flights, so UA 1945 is 4 points ahead of it. United flew 3,421 flights on the same city pair under all its flight numbers, including this one, and those ran 85.7% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1945thin sample | 286 | 88.4% | 61 min | 0.00% | A+ |
| All United Airlines on IAH–LAX | 3,421 | 85.7% | 57 min | 0.20% | A+ |
| All carriers on IAH–LAX | 5,147 | 84.1% | 62 min | 0.45% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | 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 Jul–Sep 2025 at 76.7%, a swing of 17 points on roughly 72 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 202530 flights76.7%
- Oct–Dec 202592 flights93.4%
- Jan–Mar 202687 flights89.7%
- Apr–Jun 202662 flights82.0%
- Jul–Sep 202615 flights—
Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1945 did best on Tuesday at 92.3% on time and worst on Saturday at 74.4%. Each day rests on about 41 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1945 runs when it is late
UA 1945 often beats the schedule: 104 of 284 completed flights, 37%, arrived 15 minutes or more early. The 33 late arrivals split 8 under half an hour, 13 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early104 flights36.6%
- Within 15 min147 flights51.8%
- 15–29 min late8 flights2.8%
- 30–59 min late13 flights4.6%
- 1–2 hours late9 flights3.2%
- 2+ hours late3 flights1.1%
Scale runs 0% to 100%.
Share of 284 completed flights by arrival against schedule.
A late pushback is often recovered here: of 52 departures that left 15 minutes late or more, 21 still arrived on time. Only 2 left on time and still arrived late.
The worst days
Worst days for UA 1945
The latest arrival of the period was on 29 June 2026, 3 hours 54 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 June 2026 | 3 hours 54 minutes | Carrier |
| 23 September 2025 | 3 hours 40 minutes | Late-arriving aircraft |
| 14 March 2026 | 2 hours 38 minutes | Late-arriving aircraft |
| 15 June 2026 | 1 hour 39 minutes | Extreme weather |
| 21 May 2026 | 1 hour 24 minutes | Late-arriving aircraft |
Delay causes
Why UA 1945 runs late
Late-arriving aircraft accounts for 47% of the 2,010 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Late-arriving aircraft
- 38%Carrier
- 9%Extreme weather
- 6%National Airspace System
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,010 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 2,010 delay minutes reported on UA 1945.
Cancellations are rare at 0.00%, below the national 1.89% 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
Badly late arrivals are rare here: only 4.2% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
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.
The same number turns up on six other city pairs in the data, including MCO to IAH (31), ORD to IAH (24) and ORD to BNA (21), 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. 286 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: 88.4% 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
- Delta Air Lines 1216 on the same route93.1%
- United Airlines 2460 on the same route89.0%
- United Airlines 1743 on the same route83.3%
- United Airlines 2600 on the same route91.3%
- United Airlines 469 on the same route89.0%
- Frontier Airlines 1755 on the same route71.9%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.