Flight number record
DL 925
Delta Air Lines · Anchorage to Seattle
- Route
- ANC → SEA
- Departs
- 01:30
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 925, check with Delta Air Lines.
DL 925 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 2.2 hours. That rests on 365 flights, with a median arrival 20 minutes early.
Set against the rest of the country, DL 925's record is 14 points better than the US average of 77.3%. That gap is worth roughly 136 fewer late arrivals for every thousand flights.
Key figures
On time
90.9%
Arrivals under 15 minutes late, of 364 completed flights
Avg delay
133 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
1 hour+ late
3.6%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 20 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 925 flies
DL 925 flies ANC to SEA without a single fixed slot. Its most common scheduled departure was 01:30, used on 84 of 365 flights, with 00:30 (75 flights) and 01:20 (62 flights) next.
- Departs 01:3084 flights23.0%
- Departs 00:3075 flights20.5%
- Departs 01:2062 flights17.0%
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 01:30 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and DL 925 runs 21 points better at 90.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
DL 925 next to ANC to SEA
Every carrier on ANC to SEA combined arrived on time 86.9% of the time across 6,616 flights, so DL 925 is 4 points ahead of it. Delta flew 1,608 flights on the same city pair under all its flight numbers, including this one, and those ran 88.7% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 925 | 365 | 90.9% | 133 min | 0.27% | A+ |
| All Delta Air Lines on ANC–SEA | 1,608 | 88.7% | 104 min | 0.68% | A+ |
| All carriers on ANC–SEA | 6,616 | 86.9% | 64 min | 0.85% | A+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 925 quarter by quarter
DL 925 did not run the same all year. Its best quarter was Apr–Jun 2026 at 97.8% on time and its weakest Oct–Dec 2025 at 84.8%, a swing of 13 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 flights93.3%
- Oct–Dec 202592 flights84.8%
- Jan–Mar 202690 flights91.0%
- Apr–Jun 202691 flights97.8%
- Jul–Sep 202662 flights88.7%
Scale runs 75% to 100%.
By weekday, DL 925 ranged from 88.2% on Sunday to 96.2% on Friday. 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.
Arrival by arrival
How late DL 925 runs when it is late
DL 925 often beats the schedule: 218 of 364 completed flights, 60%, arrived 15 minutes or more early. The 33 late arrivals split 9 under half an hour, 11 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early218 flights59.9%
- Within 15 min113 flights31.0%
- 15–29 min late9 flights2.5%
- 30–59 min late11 flights3.0%
- 1–2 hours late6 flights1.6%
- 2+ hours late7 flights1.9%
Scale runs 0% to 100%.
Share of 364 completed flights by arrival against schedule.
10 of 38 late departures made up the time and arrived on time, 26% of them. Only 5 left on time and still arrived late.
The worst days
Worst days for DL 925
The latest arrival of the period was on 9 July 2026, 17 hours 5 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in December 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 July 2026 | 17 hours 5 minutes | Carrier |
| 9 December 2025 | 12 hours 53 minutes | Late-arriving aircraft |
| 15 December 2025 | 11 hours 6 minutes | Late-arriving aircraft |
| 14 December 2025 | 3 hours 59 minutes | Late-arriving aircraft |
| 5 January 2026 | 3 hours 10 minutes | Carrier |
Delay causes
Why DL 925 runs late
Late-arriving aircraft accounts for 52% of the 4,400 delay minutes carriers reported here, and the remaining four split what is left.
- 52%Late-arriving aircraft
- 41%Carrier
- 4%National Airspace System
- 2%Security
- 1%Extreme weather
52% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,400 reported delay minutes here, that single category outweighs weather by 52 to one. The split is drawn from 4,400 delay minutes reported on DL 925.
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
Badly late arrivals are rare here: only 3.6% 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.
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.
Every one of the 365 flights under DL 925 in the data flew ANC to SEA. 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 925
For a booking, DL 925 has one of the better records a US domestic flight can show: 90.9% on time and 0.27% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- ANC to SEA, every carrier and departure
- SEA to ANC, the return direction
- Delta Air Lines 853 on the same route89.0%
- Delta Air Lines 922 on the same route86.9%
- Alaska Airlines 47 on the same route80.5%
- Alaska Airlines 48 on the same route89.6%
- Alaska Airlines 82 on the same route87.8%
- Alaska Airlines 54 on the same route87.5%
- 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
- Why the first flight of the morning is statistically safest
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.