Flight number record
DL 928
Delta Air Lines · Seattle to Anchorage
- Route
- SEA → ANC
- Departs
- 13:30
- Flights
- 364
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 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 B+. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 364 flights, with a median arrival 2 minutes early.
Key figures
On time
75.7%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.81%
1 hour+ late
9.1%
National rate is 8.1%
These figures cover 364 flights between July 2025 and June 2026. Beyond the headline rate, 9.1% 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 928 flies
DL 928 flies SEA to ANC without a single fixed slot. Its most common scheduled departure was 13:30, used on 74 of 364 flights, with 13:40 (64 flights) and 13:55 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 13:3074 flights20.3%
- Departs 13:4064 flights17.6%
- Departs 13:5541 flights11.3%
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 13:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 928 runs 3 points worse at 75.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
DL 928 next to SEA to ANC
Every carrier on SEA to ANC combined arrived on time 75.2% of the time across 6,681 flights, so DL 928 is about level with it. Delta flew 1,630 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 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 928thin sample | 364 | 75.7% | 66 min | 0.27% | B+ |
| All Delta Air Lines on SEA–ANC | 1,630 | 77.9% | 61 min | 0.61% | B+ |
| All carriers on SEA–ANC | 6,681 | 75.2% | 51 min | 1.00% | B |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | 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 84.8% on time and its weakest Jan–Mar 2026 at 68.5%, a swing of 16 points on roughly 91 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 202592 flights84.8%
- Oct–Dec 202592 flights76.9%
- Jan–Mar 202690 flights68.5%
- Apr–Jun 202690 flights72.2%
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, DL 928 ranged from 73.1% on Friday to 80.8% on Wednesday. With about 52 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why DL 928 runs late
One category carries most of the weight here. Carrier accounts for 65% of the 5,769 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.
- 65%Carrier
- 17%National Airspace System
- 13%Late-arriving aircraft
- 5%Extreme weather
The largest share of delay minutes, 65%, 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 3,747 of the 5,769 delay minutes reported here. The split is drawn from 5,769 delay minutes reported on DL 928.
Cancellations are rare at 0.27%, 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.1% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
DL 928 is not only a SEA to ANC flight. It also flew ANC to SEA (286 flights, 82.7% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| ANC to SEAthin sample | 286 | 82.7% | 92 min | 0.70% | B+ |
What to do with this
Booking DL 928
For a booking, read DL 928 as 75.7% 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 route80.1%
- Delta Air Lines 936 on the same route72.4%
- Alaska Airlines 99 on the same route75.3%
- Alaska Airlines 83 on the same route68.9%
- Alaska Airlines 189 on the same route76.1%
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.