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DelayAtlas

Flight number record

DL 419

Delta Air Lines · Seattle to Honolulu

Route
SEA → HNL
Departs
15:59
Flights
358
Period
July 2025 to June 2026
C+GRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 419, check with Delta Air Lines.

DL 419 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 358 flights, with a median arrival 2 minutes early.

The national on-time rate over the same period is 77.6%, so DL 419 runs 5 points behind the country as a whole. Across a thousand flights that is about 53 extra late arrivals.

Key figures

On time

72.3%

Arrivals under 15 minutes late, of 350 completed flights

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

0.84%

National rate is 1.81%

1 hour+ late

6.0%

National rate is 8.1%

These figures cover 358 flights between July 2025 and June 2026. The median arrival is 2 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 419 flies

DL 419 flies SEA to HNL without a single fixed slot. Its most common scheduled departure was 15:59, used on 147 of 358 flights, with 17:30 (70 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

  • Departs 15:59147 flights41.1%
  • Departs 17:3070 flights19.6%

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 15:59 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 419 runs level with that at 72.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 419 next to SEA to HNL

Every carrier on SEA to HNL combined arrived on time 65.5% of the time across 2,938 flights, so DL 419 is 7 points ahead of it. Delta flew 789 flights on the same city pair under all its flight numbers, including this one, and those ran 77.9% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 9 points.

DL 419 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
DL 419thin sample35872.3%59 min0.84%C+
All Delta Air Lines on SEA–HNL78977.9%56 min0.76%B+
All carriers on SEA–HNL2,93865.5%71 min0.99%C+
Delta Air Lines, whole network1,038,57081.6%71 min1.62%B

Across the year

DL 419 quarter by quarter

Quarter by quarter DL 419 held fairly steady: 75.6% in Jul–Sep 2025, 73.9% in Oct–Dec 2025, 67.9% in Jan–Mar 2026 and 71.4% 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 flights75.6%
  • Oct–Dec 202592 flights73.9%
  • Jan–Mar 202683 flights67.9%
  • Apr–Jun 202691 flights71.4%

Scale runs 60% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, DL 419 did best on Wednesday at 86.5% on time and worst on Friday at 54.9%. Each day rests on about 51 flights, so a gap of 32 points is worth noticing but could still narrow in another year.

On-time rate by day of the week67.4Mon72.9Tue86.5Wed71.2Thu54.9Fri80.4Sat72.0Sun
Monday: 67.4 percent on time. Tuesday: 72.9 percent on time. Wednesday: 86.5 percent on time. Thursday: 71.2 percent on time. Friday: 54.9 percent on time. Saturday: 80.4 percent on time. Sunday: 72.0 percent on time

Delay causes

Why DL 419 runs late

One category carries most of the weight here. Carrier accounts for 56% of the 5,744 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
    56%
  • National Airspace System
    25%
  • Late-arriving aircraft
    19%

The largest share of delay minutes, 56%, 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 3,201 of the 5,744 delay minutes reported here. The split is drawn from 5,744 delay minutes reported on DL 419.

Cancellations are rare at 0.84%, below the national 1.81% 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

6.0% 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 about an hour, which a normal layover absorbs.

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 358 flights under DL 419 in the data flew SEA to HNL. 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. 358 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 419

For a booking, read DL 419 as 72.3% on time with 0.84% cancelled over 358 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Related

Where to go next

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.