Flight number record
AS 61
Alaska Airlines · Seattle to Juneau
- Route
- SEA → JNU
- Departs
- 07:00
- Flights
- 362
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 61, check with Alaska Airlines.
AS 61 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 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 362 flights, with a median arrival 14 minutes early.
Set against the rest of the country, AS 61's record is 10 points better than the US average of 77.3%. That gap is worth roughly 98 fewer late arrivals for every thousand flights.
Key figures
On time
87.1%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
0.28%
National rate is 1.89%
1 hour+ late
5.0%
National rate is 8.3%
These figures cover 362 flights between September 2025 and August 2026. The median arrival is 14 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 AS 61 flies
AS 61 flies SEA to JNU without a single fixed slot. Its most common scheduled departure was 07:00, used on 237 of 362 flights, with 07:08 (70 flights) next.
- Departs 07:00237 flights65.5%
- Departs 07:0870 flights19.3%
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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and AS 61 runs 2 points worse at 87.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
AS 61 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 61 is 8 points ahead of 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 beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 61thin sample | 362 | 87.1% | 66 min | 0.28% | A+ |
| 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 61 quarter by quarter
AS 61 did not run the same all year. Its best quarter was Jul–Sep 2026 at 95.1% on time and its weakest Oct–Dec 2025 at 80.0%, a swing of 15 points on roughly 72 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 flights90.0%
- Oct–Dec 202590 flights80.0%
- Jan–Mar 202689 flights84.9%
- Apr–Jun 202691 flights90.0%
- Jul–Sep 202662 flights95.1%
Scale runs 70% to 100%.
By weekday, AS 61 ranged from 80.4% on Monday to 92.2% on Friday. With about 52 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late AS 61 runs when it is late
AS 61 often beats the schedule: 166 of 357 completed flights, 46%, arrived 15 minutes or more early. The 46 late arrivals split 17 under half an hour, 11 between 30 and 60 minutes, and 18 an hour or more.
- 15+ min early166 flights46.5%
- Within 15 min145 flights40.6%
- 15–29 min late17 flights4.8%
- 30–59 min late11 flights3.1%
- 1–2 hours late11 flights3.1%
- 2+ hours late7 flights2.0%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
9 of 48 late departures made up the time and arrived on time, 19% of them. Only 7 left on time and still arrived late.
The worst days
Worst days for AS 61
The latest arrival of the period was on 11 December 2025, 3 hours 57 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 December 2025 | 3 hours 57 minutes | Carrier |
| 5 January 2026 | 3 hours 22 minutes | Carrier |
| 6 January 2026 | 3 hours 21 minutes | Carrier |
| 18 March 2026 | 3 hours 6 minutes | Carrier |
| 6 October 2025 | 2 hours 13 minutes | Carrier |
Delay causes
Why AS 61 runs late
Carrier accounts for 79% of the 3,050 delay minutes carriers reported here, and the remaining four split what is left.
- 79%Carrier
- 9%National Airspace System
- 8%Late-arriving aircraft
- 4%Extreme weather
The largest share of delay minutes, 79%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,409 of the 3,050 delay minutes reported here. The split is drawn from 3,050 delay minutes reported on AS 61.
Cancellations are rare at 0.28%, 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
5.0% 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 about an hour, 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.
Every one of the 362 flights under AS 61 in the data flew SEA to JNU. 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. 362 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 61
For a booking, AS 61 has one of the better records a US domestic flight can show: 87.1% on time and 0.28% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SEA to JNU, every carrier and departure
- JNU to SEA, the return direction
- Alaska Airlines 71 on the same route69.2%
- 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
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.