Flight number record

DL 560

Delta Air Lines · Seattle to Atlanta

Route: SEA → ATL
Departs: 16:05
Flights: 348
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 560, check with Delta Air Lines.

DL 560 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 348 flights, with a median arrival 9 minutes early.

Set against the rest of the country, DL 560's record is 6 points better than the US average of 77.6%. That gap is worth roughly 58 fewer late arrivals for every thousand flights.

On time

83.4%

Arrivals under 15 minutes late, of 344 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

0.57%

National rate is 1.81%

1 hour+ late

4.4%

National rate is 8.1%

These figures cover 348 flights between July 2025 and June 2026. The median arrival is 9 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 560 flies

DL 560 flies SEA to ATL without a single fixed slot. Its most common scheduled departure was 16:05, used on 110 of 348 flights, with 15:15 (92 flights) and 15:59 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:05110 flights31.6%
Departs 15:1592 flights26.4%
Departs 15:5936 flights10.3%

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 16:05 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 560 runs 11 points better at 83.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 560 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 560 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 560 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 560thin sample	348	83.4%	74 min	0.57%	B+
All Delta Air Lines on SEA–ATL	2,371	83.8%	86 min	0.51%	B+
All carriers on SEA–ATL	3,276	82.8%	73 min	0.55%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 560 quarter by quarter

Quarter by quarter DL 560 held fairly steady: 84.8% in Jul–Sep 2025, 80.8% in Oct–Dec 2025, 83.1% in Jan–Mar 2026 and 84.6% in Apr–Jun 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights84.8%
Oct–Dec 202579 flights80.8%
Jan–Mar 202686 flights83.1%
Apr–Jun 202691 flights84.6%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 560 ranged from 79.6% on Sunday to 88.2% on Tuesday. With about 50 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 560 runs late

One category carries most of the weight here. Carrier accounts for 49% of the 4,215 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
25%
Late-arriving aircraft
22%
Extreme weather
4%

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 2,074 of the 4,215 delay minutes reported here. The split is drawn from 4,215 delay minutes reported on DL 560.

Cancellations are rare at 0.57%, 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

Badly late arrivals are rare here: only 4.4% 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 2,182 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.

The same number turns up on one other city pair in the data, including TPA to BOS (13), but none flew often enough under DL 560 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SEA to ATL only.

One caution: this is a thin sample. 348 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 560

For a booking, read DL 560 as 83.4% on time with 0.57% cancelled over 348 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