Flight number record
UA 1431
United Airlines · Los Angeles to Honolulu
- Route
- LAX → HNL
- Departs
- 13:15
- Flights
- 307
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1431, check with United Airlines.
UA 1431 lands a B+, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That rests on 307 flights, with a median arrival 11 minutes early.
Set against the rest of the country, UA 1431's record is 6 points better than the US average of 77.3%. That gap is worth roughly 60 fewer late arrivals for every thousand flights.
Key figures
On time
83.3%
Arrivals under 15 minutes late, of 306 completed flights
Avg delay
108 min
Across delayed arrivals only, not all flights
Cancelled
0.33%
National rate is 1.89%
1 hour+ late
7.8%
National rate is 8.3%
These figures cover 307 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 1431 flies
UA 1431 flies LAX to HNL without a single fixed slot. Its most common scheduled departure was 13:15, used on 161 of 307 flights, with 13:00 (36 flights) and 11:05 (31 flights) next.
- Departs 13:15161 flights52.4%
- Departs 13:0036 flights11.7%
- Departs 11:0531 flights10.1%
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 13:15 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 1431 runs 5 points better at 83.3%. 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 1431 next to LAX to HNL
Every carrier on LAX to HNL combined arrived on time 76.2% of the time across 5,540 flights, so UA 1431 is 7 points ahead of it. United flew 1,294 flights on the same city pair under all its flight numbers, including this one, and those ran 84.0% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1431thin sample | 307 | 83.3% | 108 min | 0.33% | B+ |
| All United Airlines on LAX–HNL | 1,294 | 84.0% | 91 min | 0.31% | B+ |
| All carriers on LAX–HNL | 5,540 | 76.2% | 73 min | 0.51% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | 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 2026 at 71.0%, a swing of 19 points on roughly 61 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 flights83.3%
- Oct–Dec 202592 flights84.6%
- Jan–Mar 202632 flights84.4%
- Apr–Jun 202691 flights90.1%
- Jul–Sep 202662 flights71.0%
Scale runs 65% to 95%.
By weekday, UA 1431 did best on Saturday at 90.9% on time and worst on Tuesday at 76.2%. Each day rests on about 44 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1431 runs when it is late
UA 1431 often beats the schedule: 126 of 306 completed flights, 41%, arrived 15 minutes or more early. The 51 late arrivals split 18 under half an hour, 9 between 30 and 60 minutes, and 24 an hour or more.
- 15+ min early126 flights41.2%
- Within 15 min129 flights42.2%
- 15–29 min late18 flights5.9%
- 30–59 min late9 flights2.9%
- 1–2 hours late9 flights2.9%
- 2+ hours late15 flights4.9%
Scale runs 0% to 100%.
Share of 306 completed flights by arrival against schedule.
A late pushback is often recovered here: of 68 departures that left 15 minutes late or more, 26 still arrived on time. 9 flights left on time and still arrived late.
The worst days
Worst days for UA 1431
The latest arrival of the period was on 27 August 2026, 10 hours 14 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 August 2026 | 10 hours 14 minutes | Carrier |
| 3 January 2026 | 10 hours 12 minutes | Late-arriving aircraft |
| 14 October 2025 | 6 hours 44 minutes | Late-arriving aircraft |
| 8 July 2026 | 5 hours 37 minutes | Late-arriving aircraft |
| 16 June 2026 | 4 hours 43 minutes | Late-arriving aircraft |
Delay causes
Why UA 1431 runs late
Late-arriving aircraft accounts for 60% of the 5,518 delay minutes carriers reported here, and the remaining four split what is left.
- 60%Late-arriving aircraft
- 34%Carrier
- 5%National Airspace System
60% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,518 reported delay minutes here, that single category outweighs weather by 60 to one. The split is drawn from 5,518 delay minutes reported on UA 1431.
Cancellations are rare at 0.33%, below the national 1.89% 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
7.8% of arrivals land an hour or more late, close to the national 8.3%, so 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 (56), 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 83.3% 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
- Delta Air Lines 443 on the same route82.1%
- Delta Air Lines 465 on the same route77.4%
- Delta Air Lines 480 on the same route82.2%
- American Airlines 31 on the same route81.9%
- American Airlines 143 on the same route79.9%
- United Airlines 1170 on the same route79.3%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.