Flight number record
AS 54
Alaska Airlines · Anchorage to Seattle
- Route
- ANC → SEA
- Departs
- 01:29
- Flights
- 298
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s AS 54, check with Alaska Airlines.
AS 54 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 298 flights, with a median arrival 15 minutes early.
Set against the rest of the country, AS 54's record is 9 points better than the US average of 77.6%. That gap is worth roughly 87 fewer late arrivals for every thousand flights.
Key figures
On time
86.3%
Arrivals under 15 minutes late, of 291 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
2.35%
National rate is 1.81%
1 hour+ late
3.8%
National rate is 8.1%
These figures cover 298 flights between July 2025 and June 2026. The median arrival is 15 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 AS 54 flies
AS 54 flies ANC to SEA without a single fixed slot. Its most common scheduled departure was 01:29, used on 50 of 298 flights, with 01:31 (45 flights) and 01:04 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 01:2950 flights16.8%
- Departs 01:3145 flights15.1%
- Departs 01:0441 flights13.8%
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 01:29 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and AS 54 runs 16 points better at 86.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
AS 54 next to ANC to SEA
Every carrier on ANC to SEA combined arrived on time 85.5% of the time across 6,681 flights, so AS 54 is about level with it. Alaska flew 4,926 flights on the same city pair under all its flight numbers, including this one, and those ran 85.7% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 54thin sample | 298 | 86.3% | 68 min | 2.35% | A |
| All Alaska Airlines on ANC–SEA | 4,926 | 85.7% | 52 min | 1.24% | A |
| All carriers on ANC–SEA | 6,681 | 85.5% | 64 min | 1.12% | A |
| Alaska Airlines, whole network | 293,372 | 79.1% | 52 min | 1.28% | B |
Across the year
AS 54 quarter by quarter
Quarter by quarter AS 54 held fairly steady: 84.3% in Jul–Sep 2025, 86.0% in Oct–Dec 2025, 86.7% in Jan–Mar 2026 and 90.2% in Apr–Jun 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 202591 flights84.3%
- Oct–Dec 202590 flights86.0%
- Jan–Mar 202676 flights86.7%
- Apr–Jun 202641 flights90.2%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AS 54 did best on Wednesday at 95.1% on time and worst on Sunday at 78.6%. Each day rests on about 43 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Delay causes
Why AS 54 runs late
One category carries most of the weight here. Carrier accounts for 57% of the 2,715 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.
- 57%Carrier
- 26%Extreme weather
- 11%National Airspace System
- 7%Late-arriving aircraft
Extreme weather accounts for 26% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.1 times the usual weather exposure. The split is drawn from 2,715 delay minutes reported on AS 54.
Cancellations sit at 2.35% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.8% 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.
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.
The same number turns up on two other city pairs in the data, including SJC to LIH (36) and SJC to KOA (12), but none flew often enough under AS 54 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ANC to SEA only.
One caution: this is a thin sample. 298 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 AS 54
For a booking, read AS 54 as 86.3% on time with 2.35% cancelled over 298 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ANC to SEA, every carrier and departure
- SEA to ANC, the return direction
- Delta Air Lines 922 on the same route88.6%
- Delta Air Lines 853 on the same route89.8%
- Delta Air Lines 925 on the same route91.6%
- Alaska Airlines 47 on the same route80.1%
- Alaska Airlines 82 on the same route83.9%
- Alaska Airlines 48 on the same route87.9%
- Seattle-Tacoma International (SEA) delay statistics
- Alaska Airlines on-time record
- Every Alaska Airlines 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 Alaska Airlines’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.