Flight number record
AS 1306
Alaska Airlines · Seattle to Los Angeles
- Route
- SEA → LAX
- Departs
- 08:00
- Flights
- 261
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 1306, check with Alaska Airlines.
AS 1306 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 12 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 45 minutes. That rests on 261 flights, with a median arrival 10 minutes early.
Set against the rest of the country, AS 1306's record is 12 points better than the US average of 77.3%. That gap is worth roughly 122 fewer late arrivals for every thousand flights.
Key figures
On time
89.5%
Arrivals under 15 minutes late, of 258 completed flights
Avg delay
47 min
Across delayed arrivals only, not all flights
Cancelled
1.15%
National rate is 1.89%
1 hour+ late
2.3%
National rate is 8.3%
These figures cover 261 flights between September 2025 and August 2026. The median arrival is 10 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 1306 flies
AS 1306 flies SEA to LAX without a single fixed slot. Its most common scheduled departure was 08:00, used on 102 of 261 flights, with 07:40 (46 flights) and 08:05 (41 flights) next.
- Departs 08:00102 flights39.1%
- Departs 07:4046 flights17.6%
- Departs 08:0541 flights15.7%
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 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AS 1306 runs 6 points better at 89.5%. 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 1306 next to SEA to LAX
Every carrier on SEA to LAX combined arrived on time 82.0% of the time across 7,536 flights, so AS 1306 is 8 points ahead of it. Alaska flew 3,293 flights on the same city pair under all its flight numbers, including this one, and those ran 80.4% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 1306thin sample | 261 | 89.5% | 47 min | 1.15% | A |
| All Alaska Airlines on SEA–LAX | 3,293 | 80.4% | 42 min | 0.91% | B+ |
| All carriers on SEA–LAX | 7,536 | 82.0% | 59 min | 0.81% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 1306 quarter by quarter
Quarter by quarter AS 1306 held fairly steady: 91.0% in Oct–Dec 2025, 85.5% in Jan–Mar 2026 and 90.6% 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 202529 flights—
- Oct–Dec 202581 flights91.0%
- Jan–Mar 202676 flights85.5%
- Apr–Jun 202664 flights90.6%
- Jul–Sep 202611 flights—
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AS 1306 ranged from 84.2% on Sunday to 92.5% on Thursday. With about 37 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 AS 1306 runs when it is late
AS 1306 often beats the schedule: 89 of 258 completed flights, 34%, arrived 15 minutes or more early. The 27 late arrivals split 11 under half an hour, 10 between 30 and 60 minutes, and 6 an hour or more.
- 15+ min early89 flights34.5%
- Within 15 min142 flights55.0%
- 15–29 min late11 flights4.3%
- 30–59 min late10 flights3.9%
- 1–2 hours late5 flights1.9%
- 2+ hours late1 flights0.4%
Scale runs 0% to 100%.
Share of 258 completed flights by arrival against schedule.
A late pushback is often recovered here: of 27 departures that left 15 minutes late or more, 10 still arrived on time. 10 flights left on time and still arrived late.
The worst days
Worst days for AS 1306
The latest arrival of the period was on 20 May 2026, 3 hours 16 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 |
|---|---|---|
| 20 May 2026 | 3 hours 16 minutes | Carrier |
| 19 March 2026 | 1 hour 49 minutes | Carrier |
| 11 January 2026 | 1 hour 38 minutes | Carrier |
| 10 November 2025 | 1 hour 23 minutes | Carrier |
| 3 February 2026 | 1 hour 13 minutes | Carrier |
Delay causes
Why AS 1306 runs late
Carrier accounts for 69% of the 1,259 delay minutes carriers reported here, and the remaining four split what is left.
- 69%Carrier
- 27%National Airspace System
- 4%Late-arriving aircraft
The largest share of delay minutes, 69%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 872 of the 1,259 delay minutes reported here. The split is drawn from 1,259 delay minutes reported on AS 1306.
Cancellations sit at 1.15% against a national 1.89%, 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 2.3% 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 954 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 261 flights under AS 1306 in the data flew SEA to LAX. 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. 261 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 1306
For a booking, AS 1306 has one of the better records a US domestic flight can show: 89.5% on time and 1.15% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SEA to LAX, every carrier and departure
- LAX to SEA, the return direction
- Delta Air Lines 2769 on the same route83.8%
- Delta Air Lines 2861 on the same route74.2%
- Delta Air Lines 1628 on the same route90.6%
- Delta Air Lines 2830 on the same route83.8%
- Alaska Airlines 505 on the same route82.8%
- Delta Air Lines 2914 on the same route84.0%
- Seattle-Tacoma International (SEA) delay statistics
- Los Angeles International (LAX) 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.