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DelayAtlas

Flight number record

DL 562

Delta Air Lines · Seattle to Atlanta

Route
SEA → ATL
Departs
07:25
Flights
365
Period
July 2025 to June 2026
B+GRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 562, check with Delta Air Lines.

DL 562 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 6 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 2.8 hours. That rests on 365 flights, with a median arrival 10 minutes early.

Set against the rest of the country, DL 562's record is 6 points better than the US average of 77.6%. That gap is worth roughly 64 fewer late arrivals for every thousand flights.

Key figures

On time

84.0%

Arrivals under 15 minutes late, of 362 completed flights

Avg delay

168 min

Across delayed arrivals only, not all flights

Cancelled

0.82%

National rate is 1.81%

1 hour+ late

8.3%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. Beyond the headline rate, 8.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When DL 562 flies

DL 562 flies SEA to ATL without a single fixed slot. Its most common scheduled departure was 07:25, used on 101 of 365 flights, with 07:30 (68 flights) and 08:15 (53 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

  • Departs 07:25101 flights27.7%
  • Departs 07:3068 flights18.6%
  • Departs 08:1553 flights14.5%

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 07:25 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 562 runs 5 points worse at 84.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

DL 562 next to SEA to ATL

Every carrier on SEA to ATL combined arrived on time 82.8% of the time across 3,276 flights, so DL 562 is about level with it. Delta flew 2,371 flights on the same city pair under all its flight numbers, including this one, and those ran 83.8% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 2 points.

DL 562 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
DL 56236584.0%168 min0.82%B+
All Delta Air Lines on SEA–ATL2,37183.8%86 min0.51%B+
All carriers on SEA–ATL3,27682.8%73 min0.55%B+
Delta Air Lines, whole network1,038,57081.6%71 min1.62%B

Across the year

DL 562 quarter by quarter

Quarter by quarter DL 562 held fairly steady: 83.7% in Jul–Sep 2025, 84.4% in Oct–Dec 2025, 87.6% in Jan–Mar 2026 and 80.2% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

  • Jul–Sep 202592 flights83.7%
  • Oct–Dec 202592 flights84.4%
  • Jan–Mar 202690 flights87.6%
  • Apr–Jun 202691 flights80.2%

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

By weekday, DL 562 did best on Tuesday at 90.6% on time and worst on Monday at 76.5%. Each day rests on about 52 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

On-time rate by day of the week76.5Mon90.6Tue90.4Wed84.6Thu82.7Fri78.4Sat84.3Sun
Monday: 76.5 percent on time. Tuesday: 90.6 percent on time. Wednesday: 90.4 percent on time. Thursday: 84.6 percent on time. Friday: 82.7 percent on time. Saturday: 78.4 percent on time. Sunday: 84.3 percent on time

Delay causes

Why DL 562 runs late

One category carries most of the weight here. Carrier accounts for 74% of the 9,750 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
    74%
  • Extreme weather
    12%
  • Late-arriving aircraft
    9%
  • National Airspace System
    6%

Extreme weather accounts for 12% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.9 times the usual weather exposure. The split is drawn from 9,750 delay minutes reported on DL 562.

Cancellations are rare at 0.82%, 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

8.3% 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 2.8 hours, which a normal layover absorbs.

At 2,182 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 562 in the data flew SEA to ATL. 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 562

For a booking, read DL 562 as 84.0% on time with 0.82% cancelled over 365 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.