Flight number record
AS 71
Alaska Airlines · Seattle to Juneau
- Route
- SEA → JNU
- Departs
- 11:43
- Flights
- 279
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s AS 71, check with Alaska Airlines.
AS 71 draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is roughly 45 minutes behind schedule. Build slack into anything you connect to. That rests on 279 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.6%, so AS 71 runs 10 points behind the country as a whole. Across a thousand flights that is about 100 extra late arrivals.
Key figures
On time
67.6%
Arrivals under 15 minutes late, of 275 completed flights
Avg delay
43 min
Across delayed arrivals only, not all flights
Cancelled
1.08%
National rate is 1.81%
1 hour+ late
4.7%
National rate is 8.1%
These figures cover 279 flights between July 2025 and June 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
Schedule
When AS 71 flies
AS 71 flies SEA to JNU without a single fixed slot. Its most common scheduled departure was 11:43, used on 50 of 279 flights, with 11:35 (45 flights) and 11:34 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 11:4350 flights17.9%
- Departs 11:3545 flights16.1%
- Departs 11:3445 flights16.1%
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 11:43 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and AS 71 runs 11 points worse at 67.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
AS 71 next to SEA to JNU
Every carrier on SEA to JNU combined arrived on time 76.6% of the time across 1,589 flights, so AS 71 is 9 points behind it. Alaska flew 1,448 flights on the same city pair under all its flight numbers, including this one, and those ran 76.3% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight trails by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 71thin sample | 279 | 67.6% | 43 min | 1.08% | C |
| All Alaska Airlines on SEA–JNU | 1,448 | 76.3% | 48 min | 1.45% | B |
| All carriers on SEA–JNU | 1,589 | 76.6% | 48 min | 1.38% | B |
| Alaska Airlines, whole network | 293,372 | 79.1% | 52 min | 1.28% | B |
Across the year
AS 71 quarter by quarter
AS 71 did not run the same all year. Its best quarter was Apr–Jun 2026 at 90.5% on time and its weakest Oct–Dec 2025 at 60.7%, a swing of 30 points on roughly 70 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 flights63.7%
- Oct–Dec 202590 flights60.7%
- Jan–Mar 202655 flights67.9%
- Apr–Jun 202642 flights90.5%
Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AS 71 did best on Wednesday at 78.0% on time and worst on Saturday at 56.4%. Each day rests on about 40 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Delay causes
Why AS 71 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 3,796 reported delay minutes.
- 33%Carrier
- 31%Late-arriving aircraft
- 20%National Airspace System
- 16%Extreme weather
- 1%Security
Extreme weather accounts for 16% 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 2.5 times the usual weather exposure. The split is drawn from 3,796 delay minutes reported on AS 71.
Cancellations sit at 1.08% against a national 1.81%, which is ordinary. Diversions add another 0.36%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.7% 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 909 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 one other city pair in the data, including JNU to ANC (1), but none flew often enough under AS 71 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SEA to JNU only.
One caution: this is a thin sample. 279 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 71
For a booking, AS 71 is one of the weaker ways to fly SEA to JNU: 9 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- SEA to JNU, every carrier and departure
- JNU to SEA, the return direction
- Alaska Airlines 61 on the same route83.2%
- Alaska Airlines 185 on the same route77.2%
- 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
- The best time of day to fly, according to 7.04 million flight records
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.