Flight number record

DL 344

Delta Air Lines · Seattle to Kahului

Route: SEA → OGG
Departs: 13:59
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 344, check with Delta Air Lines.

DL 344 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 40 minutes. That rests on 365 flights, with a median arrival 12 minutes early.

Set against the rest of the country, DL 344's record is 10 points better than the US average of 77.6%. That gap is worth roughly 101 fewer late arrivals for every thousand flights.

On time

87.7%

Arrivals under 15 minutes late, of 357 completed flights

Avg delay

41 min

Across delayed arrivals only, not all flights

Cancelled

1.10%

National rate is 1.81%

1 hour+ late

2.2%

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 344 flies

DL 344 flies SEA to OGG without a single fixed slot. Its most common scheduled departure was 13:59, used on 149 of 365 flights, with 14:30 (48 flights) and 13:40 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:59149 flights40.8%
Departs 14:3048 flights13.2%
Departs 13:4038 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 13:59 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 344 runs 9 points better at 87.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 344 next to SEA to OGG

Every carrier on SEA to OGG combined arrived on time 79.0% of the time across 1,809 flights, so DL 344 is 9 points ahead of it. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 6 points.

DL 344 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 344	365	87.7%	41 min	1.10%	A
All Delta Air Lines on SEA–OGG	365	87.7%	41 min	1.10%	A
All carriers on SEA–OGG	1,809	79.0%	48 min	0.66%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 344 quarter by quarter

Quarter by quarter DL 344 held fairly steady: 89.0% in Jul–Sep 2025, 86.7% in Oct–Dec 2025, 84.7% in Jan–Mar 2026 and 90.1% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights89.0%
Oct–Dec 202592 flights86.7%
Jan–Mar 202690 flights84.7%
Apr–Jun 202691 flights90.1%

Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 344 did best on Wednesday at 94.2% on time and worst on Tuesday at 80.8%. Each day rests on about 52 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 344 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 1,810 reported delay minutes.

National Airspace System
33%
Carrier
31%
Late-arriving aircraft
28%
Extreme weather
7%

33% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 606 minutes out of 1,810, against a national NAS share of 21%. The split is drawn from 1,810 delay minutes reported on DL 344.

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

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.2% 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 2,639 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 344 in the data flew SEA to OGG. 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 344

For a booking, DL 344 has one of the better records a US domestic flight can show: 87.7% on time and 1.10% cancelled. That is a base rate, not a promise about any single 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