Flight number record
AS 1357
Alaska Airlines · Seattle to Santa Ana
- Route
- SEA → SNA
- Departs
- 11:06
- Flights
- 302
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 1357, check with Alaska Airlines.
AS 1357 lands a B+, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by roughly 40 minutes on average. That rests on 302 flights, with a median arrival 5 minutes early.
Set against the rest of the country, AS 1357's record is 6 points better than the US average of 77.3%. That gap is worth roughly 64 fewer late arrivals for every thousand flights.
Key figures
On time
83.7%
Arrivals under 15 minutes late, of 300 completed flights
Avg delay
41 min
Across delayed arrivals only, not all flights
Cancelled
0.33%
National rate is 1.89%
1 hour+ late
2.3%
National rate is 8.3%
These figures cover 302 flights between September 2025 and August 2026. The median arrival is 5 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 1357 flies
AS 1357 flies SEA to SNA without a single fixed slot. Its most common scheduled departure was 11:06, used on 68 of 302 flights, with 11:15 (39 flights) and 11:55 (36 flights) next.
- Departs 11:0668 flights22.5%
- Departs 11:1539 flights12.9%
- Departs 11:5536 flights11.9%
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 11:06 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and AS 1357 runs 5 points better at 83.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
AS 1357 next to SEA to SNA
Every carrier on SEA to SNA combined arrived on time 84.7% of the time across 3,945 flights, so AS 1357 is about level with it. Alaska flew 2,570 flights on the same city pair under all its flight numbers, including this one, and those ran 86.3% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight beats by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 1357thin sample | 302 | 83.7% | 41 min | 0.33% | B+ |
| All Alaska Airlines on SEA–SNA | 2,570 | 86.3% | 40 min | 0.93% | A+ |
| All carriers on SEA–SNA | 3,945 | 84.7% | 49 min | 0.89% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 1357 quarter by quarter
AS 1357 did not run the same all year. Its best quarter was Apr–Jun 2026 at 92.0% on time and its weakest Jul–Sep 2026 at 77.4%, a swing of 15 points on roughly 76 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.
- Oct–Dec 202565 flights81.2%
- Jan–Mar 202688 flights81.6%
- Apr–Jun 202687 flights92.0%
- Jul–Sep 202662 flights77.4%
Scale runs 70% to 95%.
By weekday, AS 1357 did best on Wednesday at 93.0% on time and worst on Sunday at 77.3%. Each day rests on about 43 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 1357 runs when it is late
AS 1357 often beats the schedule: 89 of 300 completed flights, 30%, arrived 15 minutes or more early. Most of the lateness is short. 25 of the 49 late arrivals were under half an hour behind, and 7 reached an hour or more.
- 15+ min early89 flights29.7%
- Within 15 min162 flights54.0%
- 15–29 min late25 flights8.3%
- 30–59 min late17 flights5.7%
- 1–2 hours late4 flights1.3%
- 2+ hours late3 flights1.0%
Scale runs 0% to 100%.
Share of 300 completed flights by arrival against schedule.
A late pushback is often recovered here: of 63 departures that left 15 minutes late or more, 24 still arrived on time. 10 flights left on time and still arrived late.
The worst days
Worst days for AS 1357
The latest arrival of the period was on 12 February 2026, 2 hours 37 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 February 2026 | 2 hours 37 minutes | Carrier |
| 20 March 2026 | 2 hours 14 minutes | Carrier |
| 2 March 2026 | 2 hours 1 minute | Carrier |
| 5 July 2026 | 1 hour 50 minutes | Late-arriving aircraft |
| 16 July 2026 | 1 hour 49 minutes | Extreme weather |
Delay causes
Why AS 1357 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 2,020 reported delay minutes.
- 42%Late-arriving aircraft
- 41%Carrier
- 13%National Airspace System
- 5%Extreme weather
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,020 reported delay minutes here, that single category outweighs weather by 9 to one. The split is drawn from 2,020 delay minutes reported on AS 1357.
Cancellations are rare at 0.33%, 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
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 978 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 302 flights under AS 1357 in the data flew SEA to SNA. 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. 302 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 1357
For a booking, read AS 1357 as 83.7% on time with 0.33% cancelled over 302 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SEA to SNA, every carrier and departure
- SNA to SEA, the return direction
- Alaska Airlines 773 on the same route85.4%
- Alaska Airlines 699 on the same route91.7%
- Alaska Airlines 759 on the same route85.1%
- Seattle-Tacoma International (SEA) delay statistics
- John Wayne Airport (SNA) 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
- Why the first flight of the morning is statistically safest
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.