Flight number record
DL 928
Delta Air Lines · Seattle to Anchorage
- Route
- SEA → ANC
- Departs
- 13:30
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 928, check with Delta Air Lines.
DL 928 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 77.3%. The late ones land about an hour behind schedule. That rests on 364 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so DL 928 runs 5 points behind the country as a whole. Across a thousand flights that is about 47 extra late arrivals.
Key figures
On time
72.6%
Arrivals under 15 minutes late, of 361 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
1 hour+ late
10.2%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. Beyond the headline rate, 10.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 928 flies
DL 928 flies SEA to ANC without a single fixed slot. Its most common scheduled departure was 13:30, used on 80 of 364 flights, with 13:40 (56 flights) and 13:55 (41 flights) next.
- Departs 13:3080 flights22.0%
- Departs 13:4056 flights15.4%
- Departs 13:5541 flights11.3%
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 13:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 928 runs 6 points worse at 72.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 928 next to SEA to ANC
Every carrier on SEA to ANC combined arrived on time 76.5% of the time across 6,619 flights, so DL 928 is 4 points behind it. Delta flew 1,609 flights on the same city pair under all its flight numbers, including this one, and those ran 77.5% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 928thin sample | 364 | 72.6% | 65 min | 0.27% | C+ |
| All Delta Air Lines on SEA–ANC | 1,609 | 77.5% | 62 min | 0.62% | B+ |
| All carriers on SEA–ANC | 6,619 | 76.5% | 50 min | 0.71% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 928 quarter by quarter
DL 928 did not run the same all year. Its best quarter was Jul–Sep 2025 at 83.3% on time and its weakest Jul–Sep 2026 at 67.2%, a swing of 16 points on roughly 73 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights83.3%
- Oct–Dec 202592 flights76.9%
- Jan–Mar 202690 flights68.5%
- Apr–Jun 202690 flights72.2%
- Jul–Sep 202662 flights67.2%
Scale runs 60% to 90%.
By weekday, DL 928 did best on Saturday at 81.6% on time and worst on Tuesday at 65.4%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 928 runs when it is late
The 99 late arrivals split 38 under half an hour, 24 between 30 and 60 minutes, and 37 an hour or more.
- 15+ min early85 flights23.5%
- Within 15 min177 flights49.0%
- 15–29 min late38 flights10.5%
- 30–59 min late24 flights6.6%
- 1–2 hours late23 flights6.4%
- 2+ hours late14 flights3.9%
Scale runs 0% to 100%.
Share of 361 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 79 departures that left 15 minutes late or more, only 6 made it up before arrival. In the other direction, 26 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ANC.
The worst days
Worst days for DL 928
The latest arrival of the period was on 15 December 2025, 6 hours 36 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 15 December 2025 | 6 hours 36 minutes | Carrier |
| 13 March 2026 | 4 hours 51 minutes | Extreme weather |
| 10 December 2025 | 4 hours 48 minutes | Carrier |
| 15 July 2026 | 3 hours 7 minutes | Carrier |
| 22 February 2026 | 2 hours 52 minutes | Carrier |
Delay causes
Why DL 928 runs late
Carrier accounts for 61% of the 6,403 delay minutes carriers reported here, and the remaining four split what is left.
- 61%Carrier
- 18%Late-arriving aircraft
- 16%National Airspace System
- 4%Extreme weather
- 1%Security
The largest share of delay minutes, 61%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,929 of the 6,403 delay minutes reported here. The split is drawn from 6,403 delay minutes reported on DL 928.
Cancellations are rare at 0.27%, below the national 1.89% 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
10.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 1,448 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on one other city pair in the data, including ANC to SEA (224), but none flew often enough under DL 928 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SEA to ANC only.
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 928
For a booking, read DL 928 as 72.6% on time with 0.27% cancelled over 364 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SEA to ANC, every carrier and departure
- ANC to SEA, the return direction
- Delta Air Lines 922 on the same route78.9%
- Delta Air Lines 936 on the same route73.0%
- Alaska Airlines 99 on the same route75.2%
- Alaska Airlines 83 on the same route70.4%
- Seattle-Tacoma International (SEA) 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
- How often a connection fails at the major US hubs
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.