Flight number record
UA 1431
United Airlines · Los Angeles to Honolulu
- Route
- LAX → HNL
- Departs
- 13:15
- Flights
- 307
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1431, check with United Airlines.
UA 1431 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 307 flights, with a median arrival 11 minutes early.
Set against the rest of the country, UA 1431's record is 7 points better than the US average of 77.6%. That gap is worth roughly 67 fewer late arrivals for every thousand flights.
Key figures
On time
84.3%
Arrivals under 15 minutes late, of 306 completed flights
Avg delay
101 min
Across delayed arrivals only, not all flights
Cancelled
0.33%
National rate is 1.81%
1 hour+ late
6.9%
National rate is 8.1%
These figures cover 307 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 1431 flies
UA 1431 flies LAX to HNL without a single fixed slot. Its most common scheduled departure was 13:15, used on 160 of 307 flights, with 13:35 (37 flights) and 13:00 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 13:15160 flights52.1%
- Departs 13:3537 flights12.1%
- Departs 13:0036 flights11.7%
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 13:15 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 1431 runs 6 points better at 84.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 1431 next to LAX to HNL
Every carrier on LAX to HNL combined arrived on time 76.9% of the time across 5,459 flights, so UA 1431 is 7 points ahead of it. United flew 1,268 flights on the same city pair under all its flight numbers, including this one, and those ran 84.5% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1431thin sample | 307 | 84.3% | 101 min | 0.33% | B+ |
| All United Airlines on LAX–HNL | 1,268 | 84.5% | 97 min | 0.39% | B+ |
| All carriers on LAX–HNL | 5,459 | 76.9% | 73 min | 0.49% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1431 quarter by quarter
UA 1431 did not run the same all year. Its best quarter was Apr–Jun 2026 at 90.1% on time and its weakest Jul–Sep 2025 at 78.3%, a swing of 12 points on roughly 77 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 flights78.3%
- Oct–Dec 202592 flights84.6%
- Jan–Mar 202632 flights84.4%
- Apr–Jun 202691 flights90.1%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1431 did best on Monday at 93.2% on time and worst on Tuesday at 72.1%. Each day rests on about 44 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 1431 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 72% of the 4,866 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.
- 72%Late-arriving aircraft
- 24%Carrier
- 5%National Airspace System
72% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 4,866 reported delay minutes here, that single category outweighs weather by 72 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 4,866 delay minutes reported on UA 1431.
Cancellations are rare at 0.33%, 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
6.9% 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 close to two hours, which a normal layover absorbs.
At 2,556 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The same number turns up on six other city pairs in the data, including JAC to LAX (35), MCO to ORD (21) and ORD to LAX (21), but none flew often enough under UA 1431 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to HNL only.
One caution: this is a thin sample. 307 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 1431
For a booking, read UA 1431 as 84.3% on time with 0.33% cancelled over 307 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAX to HNL, every carrier and departure
- HNL to LAX, the return direction
- United Airlines 1170 on the same route82.4%
- American Airlines 31 on the same route82.5%
- American Airlines 143 on the same route79.9%
- Delta Air Lines 443 on the same route82.4%
- Delta Air Lines 465 on the same route74.7%
- Delta Air Lines 480 on the same route84.9%
- Los Angeles International (LAX) delay statistics
- Daniel K. Inouye International (HNL) 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.