Flight number record
AS 71
Alaska Airlines · Seattle to Juneau
- Route
- SEA → JNU
- Departs
- 21:23
- Flights
- 265
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 71, check with Alaska Airlines.
AS 71 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.3%. The late ones land roughly 45 minutes behind schedule. That rests on 265 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so AS 71 runs 8 points behind the country as a whole. Across a thousand flights that is about 81 extra late arrivals.
Key figures
On time
69.2%
Arrivals under 15 minutes late, of 260 completed flights
Avg delay
47 min
Across delayed arrivals only, not all flights
Cancelled
1.51%
National rate is 1.89%
1 hour+ late
5.8%
National rate is 8.3%
These figures cover 265 flights between September 2025 and August 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.
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Schedule
When AS 71 flies
AS 71 flies SEA to JNU without a single fixed slot. Its most common scheduled departure was 21:23, used on 69 of 265 flights, with 11:35 (45 flights) and 11:34 (33 flights) next.
- Departs 21:2369 flights26.0%
- Departs 11:3545 flights17.0%
- Departs 11:3433 flights12.5%
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 21:23 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and AS 71 runs level with that at 69.2%. 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
AS 71 next to SEA to JNU
Every carrier on SEA to JNU combined arrived on time 79.2% of the time across 1,588 flights, so AS 71 is 10 points behind it. Alaska flew 1,447 flights on the same city pair under all its flight numbers, including this one, and those ran 78.7% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 71thin sample | 265 | 69.2% | 47 min | 1.51% | C |
| All Alaska Airlines on SEA–JNU | 1,447 | 78.7% | 51 min | 1.24% | B |
| All carriers on SEA–JNU | 1,588 | 79.2% | 51 min | 1.26% | B |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | 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 66 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 flights—
- Oct–Dec 202590 flights60.7%
- Jan–Mar 202655 flights67.9%
- Apr–Jun 202642 flights90.5%
- Jul–Sep 202648 flights63.8%
Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AS 71 did best on Tuesday at 83.8% on time and worst on Thursday at 59.5%. Each day rests on about 38 flights, so a gap of 24 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 71 runs when it is late
AS 71 often beats the schedule: 65 of 260 completed flights, 25%, arrived 15 minutes or more early. The 80 late arrivals split 39 under half an hour, 26 between 30 and 60 minutes, and 15 an hour or more.
- 15+ min early65 flights25.0%
- Within 15 min115 flights44.2%
- 15–29 min late39 flights15.0%
- 30–59 min late26 flights10.0%
- 1–2 hours late7 flights2.7%
- 2+ hours late8 flights3.1%
Scale runs 0% to 100%.
Share of 260 completed flights by arrival against schedule.
22 of 89 late departures made up the time and arrived on time, 25% of them. In the other direction, 13 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 JNU.
The worst days
Worst days for AS 71
The latest arrival of the period was on 25 November 2025, 3 hours 52 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 25 November 2025 | 3 hours 52 minutes | Extreme weather |
| 17 August 2026 | 3 hours 15 minutes | Carrier |
| 14 December 2025 | 3 hours 10 minutes | Carrier |
| 22 December 2025 | 2 hours 55 minutes | Carrier |
| 17 September 2025 | 2 hours 46 minutes | Extreme weather |
Delay causes
Why AS 71 runs late
Carrier accounts for 43% of the 3,718 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Carrier
- 28%Late-arriving aircraft
- 16%Extreme weather
- 12%National Airspace System
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 2.6 times the usual weather exposure. The split is drawn from 3,718 delay minutes reported on AS 71.
Cancellations sit at 1.51% against a national 1.89%, which is ordinary. Diversions add another 0.38%.
Connections and routes
What a delay on this flight costs
5.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 45 minutes, which a normal layover absorbs.
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.
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. 265 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: 10 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 route87.1%
- 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 7.05 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.