Flight number record
AS 588
Alaska Airlines · Portland to Santa Ana
- Route
- PDX → SNA
- Departs
- 10:38
- Flights
- 308
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 588, check with Alaska Airlines.
AS 588 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 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 35 minutes. That rests on 308 flights, with a median arrival 6 minutes early.
Set against the rest of the country, AS 588's record is 13 points better than the US average of 77.3%. That gap is worth roughly 129 fewer late arrivals for every thousand flights.
Key figures
On time
90.2%
Arrivals under 15 minutes late, of 305 completed flights
Avg delay
37 min
Across delayed arrivals only, not all flights
Cancelled
0.97%
National rate is 1.89%
1 hour+ late
0.7%
National rate is 8.3%
These figures cover 308 flights between September 2025 and August 2026. The median arrival is 6 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 588 flies
AS 588 flies PDX to SNA without a single fixed slot. Its most common scheduled departure was 10:38, used on 70 of 308 flights, with 10:45 (44 flights) and 10:42 (36 flights) next.
- Departs 10:3870 flights22.7%
- Departs 10:4544 flights14.3%
- Departs 10:4236 flights11.7%
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 10:38 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AS 588 runs 6 points better at 90.2%. 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 588 next to PDX to SNA
Every carrier on PDX to SNA combined arrived on time 90.9% of the time across 1,543 flights, so AS 588 is about level with it. Across its whole network Alaska Airlines managed 79.7%, which this flight beats by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 588thin sample | 308 | 90.2% | 37 min | 0.97% | A+ |
| All Alaska Airlines on PDX–SNA | 1,543 | 90.9% | 37 min | 0.97% | A+ |
| All carriers on PDX–SNA | 1,543 | 90.9% | 37 min | 0.97% | A+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 588 quarter by quarter
AS 588 did not run the same all year. Its best quarter was Apr–Jun 2026 at 98.9% on time and its weakest Oct–Dec 2025 at 83.1%, a swing of 16 points on roughly 77 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 flights83.1%
- Jan–Mar 202690 flights89.8%
- Apr–Jun 202691 flights98.9%
- Jul–Sep 202662 flights85.2%
Scale runs 75% to 100%.
By weekday, AS 588 ranged from 86.0% on Friday to 97.7% on Saturday. With about 44 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 588 runs when it is late
AS 588 often beats the schedule: 80 of 305 completed flights, 26%, arrived 15 minutes or more early. Most of the lateness is short. 16 of the 30 late arrivals were under half an hour behind, and 2 reached an hour or more.
- 15+ min early80 flights26.2%
- Within 15 min195 flights63.9%
- 15–29 min late16 flights5.2%
- 30–59 min late12 flights3.9%
- 1–2 hours late1 flights0.3%
- 2+ hours late1 flights0.3%
Scale runs 0% to 100%.
Share of 305 completed flights by arrival against schedule.
5 of 21 late departures made up the time and arrived on time, 24% of them. 14 flights left on time and still arrived late.
The worst days
Worst days for AS 588
The latest arrival of the period was on 22 March 2026, 2 hours 36 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. 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 |
|---|---|---|
| 22 March 2026 | 2 hours 36 minutes | Late-arriving aircraft |
| 3 July 2026 | 1 hour 8 minutes | Carrier |
| 23 July 2026 | 54 minutes | National Airspace System |
| 30 June 2026 | 53 minutes | Carrier |
| 10 December 2025 | 52 minutes | Carrier |
Delay causes
Why AS 588 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 1,101 reported delay minutes.
- 39%National Airspace System
- 33%Carrier
- 27%Late-arriving aircraft
39% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 433 minutes out of 1,101, against a national NAS share of 21%. The split is drawn from 1,101 delay minutes reported on AS 588.
Cancellations sit at 0.97% 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 0.7% 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 859 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 SEA to PSC (1), but none flew often enough under AS 588 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to PDX to SNA only.
One caution: this is a thin sample. 308 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 588
For a booking, AS 588 has one of the better records a US domestic flight can show: 90.2% on time and 0.97% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- PDX to SNA, every carrier and departure
- SNA to PDX, the return direction
- Alaska Airlines 1404 on the same route88.9%
- Alaska Airlines 264 on the same route90.9%
- Portland International (PDX) 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
- 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.