Flight number record

DL 440

Delta Air Lines · Honolulu to Seattle

Route: HNL → SEA
Departs: 22:42
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 440, check with Delta Air Lines.

DL 440 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 16 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 2.2 hours. That rests on 365 flights, with a median arrival 16 minutes early.

Set against the rest of the country, DL 440's record is 16 points better than the US average of 77.6%. That gap is worth roughly 160 fewer late arrivals for every thousand flights.

On time

93.6%

Arrivals under 15 minutes late, of 359 completed flights

Avg delay

129 min

Across delayed arrivals only, not all flights

Cancelled

1.64%

National rate is 1.81%

1 hour+ late

1.9%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 16 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 440 flies

DL 440 flies HNL to SEA without a single fixed slot. Its most common scheduled departure was 22:42, used on 74 of 365 flights, with 22:40 (53 flights) and 22:30 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 22:4274 flights20.3%
Departs 22:4053 flights14.5%
Departs 22:3038 flights10.4%

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 22:42 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and DL 440 runs 23 points better at 93.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 440 next to HNL to SEA

Every carrier on HNL to SEA combined arrived on time 75.2% of the time across 2,942 flights, so DL 440 is 18 points ahead of it. Delta flew 789 flights on the same city pair under all its flight numbers, including this one, and those ran 89.6% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 12 points.

DL 440 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 440	365	93.6%	129 min	1.64%	A
All Delta Air Lines on HNL–SEA	789	89.6%	88 min	1.39%	A
All carriers on HNL–SEA	2,942	75.2%	71 min	0.92%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 440 quarter by quarter

Quarter by quarter DL 440 held fairly steady: 96.6% in Jul–Sep 2025, 95.6% in Oct–Dec 2025, 88.8% in Jan–Mar 2026 and 93.4% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights96.6%
Oct–Dec 202592 flights95.6%
Jan–Mar 202690 flights88.8%
Apr–Jun 202691 flights93.4%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 440 ranged from 88.0% on Saturday to 98.1% 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 440 runs late

One category carries most of the weight here. Carrier accounts for 49% of the 2,974 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
49%
National Airspace System
34%
Late-arriving aircraft
17%

The largest share of delay minutes, 49%, 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 1,467 of the 2,974 delay minutes reported here. The split is drawn from 2,974 delay minutes reported on DL 440.

Cancellations sit at 1.64% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 1.9% land an hour or more behind schedule, against 8.1% 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.

At 2,677 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 440 in the data flew HNL to SEA. 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 440

For a booking, read DL 440 as 93.6% on time with 1.64% 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