Flight number record
DL 569
Delta Air Lines · Seattle to Atlanta
- Route
- SEA → ATL
- Departs
- 06:00
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 569, check with Delta Air Lines.
DL 569 earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 18 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 364 flights, with a median arrival 16 minutes early.
Set against the rest of the country, DL 569's record is 18 points better than the US average of 77.3%. That gap is worth roughly 175 fewer late arrivals for every thousand flights.
Key figures
On time
94.8%
Arrivals under 15 minutes late, of 363 completed flights
Avg delay
78 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
1.9%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 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.
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Schedule
When DL 569 flies
DL 569 flies SEA to ATL without a single fixed slot. Its most common scheduled departure was 06:00, used on 250 of 364 flights, with 06:15 (114 flights) next.
- Departs 06:00250 flights68.7%
- Departs 06:15114 flights31.3%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 569 runs 6 points better at 94.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
DL 569 next to SEA to ATL
Every carrier on SEA to ATL combined arrived on time 84.0% of the time across 3,294 flights, so DL 569 is 11 points ahead of it. Delta flew 2,402 flights on the same city pair under all its flight numbers, including this one, and those ran 84.2% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 14 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 569thin sample | 364 | 94.8% | 78 min | 0.00% | A+ |
| All Delta Air Lines on SEA–ATL | 2,402 | 84.2% | 84 min | 0.75% | B+ |
| All carriers on SEA–ATL | 3,294 | 84.0% | 74 min | 0.70% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 569 quarter by quarter
Quarter by quarter DL 569 held fairly steady: 96.7% in Jul–Sep 2025, 94.6% in Oct–Dec 2025, 92.0% in Jan–Mar 2026, 97.8% in Apr–Jun 2026 and 93.5% in Jul–Sep 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights96.7%
- Oct–Dec 202592 flights94.6%
- Jan–Mar 202689 flights92.0%
- Apr–Jun 202691 flights97.8%
- Jul–Sep 202662 flights93.5%
Scale runs 85% to 100%.
By weekday, DL 569 ranged from 92.3% on Saturday to 98.1% on Wednesday. With about 52 flights behind each day, a spread of 6 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 569 runs when it is late
DL 569 often beats the schedule: 209 of 363 completed flights, 58%, arrived 15 minutes or more early. The 19 late arrivals split 4 under half an hour, 8 between 30 and 60 minutes, and 7 an hour or more.
- 15+ min early209 flights57.6%
- Within 15 min135 flights37.2%
- 15–29 min late4 flights1.1%
- 30–59 min late8 flights2.2%
- 1–2 hours late4 flights1.1%
- 2+ hours late3 flights0.8%
Scale runs 0% to 100%.
Share of 363 completed flights by arrival against schedule.
A late pushback is often recovered here: of 33 departures that left 15 minutes late or more, 16 still arrived on time. Only 2 left on time and still arrived late.
The worst days
Worst days for DL 569
The latest arrival of the period was on 2 September 2025, 7 hours 12 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 2 September 2025 | 7 hours 12 minutes | Carrier |
| 5 August 2026 | 2 hours 50 minutes | Carrier |
| 21 August 2026 | 2 hours 30 minutes | Carrier |
| 5 March 2026 | 1 hour 29 minutes | Late-arriving aircraft |
| 6 March 2026 | 1 hour 18 minutes | National Airspace System |
Delay causes
Why DL 569 runs late
Carrier accounts for 62% of the 1,488 delay minutes carriers reported here, and the remaining four split what is left.
- 62%Carrier
- 25%Late-arriving aircraft
- 13%National Airspace System
The largest share of delay minutes, 62%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 923 of the 1,488 delay minutes reported here. The split is drawn from 1,488 delay minutes reported on DL 569.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are 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 1.9% land an hour or more behind schedule, against 8.3% 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.
Every one of the 364 flights under DL 569 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. 364 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 569
For a booking, DL 569 has one of the better records a US domestic flight can show: 94.8% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SEA to ATL, every carrier and departure
- ATL to SEA, the return direction
- Delta Air Lines 562 on the same route82.4%
- Alaska Airlines 334 on the same route80.6%
- Delta Air Lines 542 on the same route79.3%
- Delta Air Lines 560 on the same route84.6%
- Delta Air Lines 652 on the same route89.0%
- Delta Air Lines 554 on the same route77.4%
- Seattle-Tacoma International (SEA) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.