Flight number record

DL 428

Delta Air Lines · Los Angeles to Lihue

Route: LAX → LIH
Departs: 14:25
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 428, check with Delta Air Lines.

DL 428 lands a B, 6 points better than the national rate of 77.6%. 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 is a workable record, not a spotless one. That rests on 365 flights, with a median arrival 12 minutes early.

Set against the rest of the country, DL 428's record is 6 points better than the US average of 77.6%. That gap is worth roughly 63 fewer late arrivals for every thousand flights.

On time

83.9%

Arrivals under 15 minutes late, of 361 completed flights

Avg delay

82 min

Across delayed arrivals only, not all flights

Cancelled

1.10%

National rate is 1.81%

1 hour+ late

7.8%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 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.

Schedule

When DL 428 flies

DL 428 flies LAX to LIH without a single fixed slot. Its most common scheduled departure was 14:25, used on 110 of 365 flights, with 15:45 (71 flights) and 14:50 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 14:25110 flights30.1%
Departs 15:4571 flights19.5%
Departs 14:5055 flights15.1%

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 14:25 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 428 runs 12 points better at 83.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 428 next to LAX to LIH

Every carrier on LAX to LIH combined arrived on time 84.1% of the time across 1,539 flights, so DL 428 is about level with it. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 2 points.

DL 428 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 428	365	83.9%	82 min	1.10%	B
All Delta Air Lines on LAX–LIH	365	83.9%	82 min	1.10%	B
All carriers on LAX–LIH	1,539	84.1%	55 min	0.39%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	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 91.3% on time and its weakest Apr–Jun 2026 at 80.2%, a swing of 11 points on roughly 91 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 flights91.3%
Oct–Dec 202592 flights82.4%
Jan–Mar 202690 flights81.6%
Apr–Jun 202691 flights80.2%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 428 ranged from 78.8% on Friday to 88.5% on Thursday. With about 52 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 428 runs late

One category carries most of the weight here. Carrier accounts for 65% of the 4,751 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.

Carrier
65%
Late-arriving aircraft
26%
National Airspace System
10%

The largest share of delay minutes, 65%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 3,075 of the 4,751 delay minutes reported here. The split is drawn from 4,751 delay minutes reported on DL 428.

Cancellations sit at 1.10% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

7.8% of arrivals land an hour or more late, close to the national 8.1%. 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.

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 83.9% on time with 1.10% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures