Flight number record
DL 428
Delta Air Lines · Los Angeles to Lihue
- Route
- LAX → LIH
- Departs
- 15:45
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 428, check with Delta Air Lines.
DL 428 lands a B, 5 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 a little over an hour on average. That rests on 365 flights, with a median arrival 12 minutes early.
Set against the rest of the country, DL 428's record is 5 points better than the US average of 77.3%. That gap is worth roughly 47 fewer late arrivals for every thousand flights.
Key figures
On time
82.0%
Arrivals under 15 minutes late, of 361 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
1.10%
National rate is 1.89%
1 hour+ late
7.5%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 12 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 DL 428 flies
DL 428 flies LAX to LIH without a single fixed slot. Its most common scheduled departure was 15:45, used on 71 of 365 flights, with 14:50 (61 flights) and 14:45 (56 flights) next.
- Departs 15:4571 flights19.5%
- Departs 14:5061 flights16.7%
- Departs 14:4556 flights15.3%
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 15:45 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 428 runs 10 points better at 82.0%. 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
DL 428 next to LAX to LIH
Every carrier on LAX to LIH combined arrived on time 82.9% of the time across 1,605 flights, so DL 428 is about level with it. Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 428 | 365 | 82.0% | 79 min | 1.10% | B |
| All Delta Air Lines on LAX–LIH | 365 | 82.0% | 79 min | 1.10% | B |
| All carriers on LAX–LIH | 1,605 | 82.9% | 54 min | 0.81% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 428 quarter by quarter
DL 428 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Jul–Sep 2026 at 77.4%, a swing of 19 points on roughly 73 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 flights96.7%
- Oct–Dec 202592 flights82.4%
- Jan–Mar 202690 flights81.6%
- Apr–Jun 202691 flights80.2%
- Jul–Sep 202662 flights77.4%
Scale runs 70% to 100%.
By weekday, DL 428 ranged from 75.0% on Friday to 86.5% on Tuesday. With about 52 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 428 runs when it is late
DL 428 often beats the schedule: 154 of 361 completed flights, 43%, arrived 15 minutes or more early. The 65 late arrivals split 15 under half an hour, 23 between 30 and 60 minutes, and 27 an hour or more.
- 15+ min early154 flights42.7%
- Within 15 min142 flights39.3%
- 15–29 min late15 flights4.2%
- 30–59 min late23 flights6.4%
- 1–2 hours late16 flights4.4%
- 2+ hours late11 flights3.0%
Scale runs 0% to 100%.
Share of 361 completed flights by arrival against schedule.
11 of 70 late departures made up the time and arrived on time, 16% of them. Only 6 left on time and still arrived late.
The worst days
Worst days for DL 428
The latest arrival of the period was on 18 April 2026, 7 hours 23 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 18 April 2026 | 7 hours 23 minutes | Carrier |
| 10 April 2026 | 6 hours 40 minutes | Late-arriving aircraft |
| 10 October 2025 | 4 hours 52 minutes | Carrier |
| 30 January 2026 | 3 hours 54 minutes | Carrier |
| 29 June 2026 | 3 hours 34 minutes | Carrier |
Delay causes
Why DL 428 runs late
Carrier accounts for 70% of the 5,124 delay minutes carriers reported here, and the remaining four split what is left.
- 70%Carrier
- 22%Late-arriving aircraft
- 8%National Airspace System
The largest share of delay minutes, 70%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,580 of the 5,124 delay minutes reported here. The split is drawn from 5,124 delay minutes reported on DL 428.
Cancellations sit at 1.10% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
7.5% 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 a little over an hour, which a normal layover absorbs.
At 2,615 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.
Every one of the 365 flights under DL 428 in the data flew LAX to LIH. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 365 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 DL 428
For a booking, read DL 428 as 82.0% on time with 1.10% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAX to LIH, every carrier and departure
- LIH to LAX, the return direction
- United Airlines 1295 on the same route94.9%
- American Airlines 119 on the same route77.8%
- Los Angeles International (LAX) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines 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 Delta Air Lines’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.