Flight number record
AS 1392
Alaska Airlines · San Diego to Portland
- Route
- SAN → PDX
- Departs
- 17:58
- Flights
- 303
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 1392, check with Alaska Airlines.
AS 1392 lands a B+, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 303 flights, with a median arrival 5 minutes early.
Key figures
On time
79.7%
Arrivals under 15 minutes late, of 301 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
0.66%
National rate is 1.89%
1 hour+ late
6.3%
National rate is 8.3%
These figures cover 303 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 1392 flies
AS 1392 flies SAN to PDX without a single fixed slot. Its most common scheduled departure was 17:58, used on 85 of 303 flights, with 18:02 (80 flights) and 18:03 (70 flights) next.
- Departs 17:5885 flights28.1%
- Departs 18:0280 flights26.4%
- Departs 18:0370 flights23.1%
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 17:58 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and AS 1392 runs 12 points better at 79.7%. 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 1392 next to SAN to PDX
Every carrier on SAN to PDX combined arrived on time 82.5% of the time across 1,838 flights, so AS 1392 is 3 points behind it. Alaska flew 1,591 flights on the same city pair under all its flight numbers, including this one, and those ran 85.5% on time. Across its whole network Alaska Airlines managed 79.7%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 1392thin sample | 303 | 79.7% | 68 min | 0.66% | B+ |
| All Alaska Airlines on SAN–PDX | 1,591 | 85.5% | 55 min | 1.01% | A |
| All carriers on SAN–PDX | 1,838 | 82.5% | 51 min | 0.87% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 1392 quarter by quarter
AS 1392 did not run the same all year. Its best quarter was Apr–Jun 2026 at 90.9% on time and its weakest Jul–Sep 2026 at 65.6%, a swing of 25 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 202562 flights77.4%
- Jan–Mar 202690 flights80.0%
- Apr–Jun 202690 flights90.9%
- Jul–Sep 202661 flights65.6%
Scale runs 55% to 95%.
By weekday, AS 1392 did best on Tuesday at 88.6% on time and worst on Thursday at 73.8%. Each day rests on about 43 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 1392 runs when it is late
The 61 late arrivals split 24 under half an hour, 18 between 30 and 60 minutes, and 19 an hour or more.
- 15+ min early74 flights24.6%
- Within 15 min166 flights55.1%
- 15–29 min late24 flights8.0%
- 30–59 min late18 flights6.0%
- 1–2 hours late8 flights2.7%
- 2+ hours late11 flights3.7%
Scale runs 0% to 100%.
Share of 301 completed flights by arrival against schedule.
A late pushback is often recovered here: of 83 departures that left 15 minutes late or more, 32 still arrived on time. 10 flights left on time and still arrived late.
The worst days
Worst days for AS 1392
The latest arrival of the period was on 15 January 2026, 5 hours 9 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 15 January 2026 | 5 hours 9 minutes | Late-arriving aircraft |
| 9 August 2026 | 4 hours 54 minutes | Late-arriving aircraft |
| 27 July 2026 | 4 hours 45 minutes | Late-arriving aircraft |
| 6 July 2026 | 4 hours | Carrier |
| 11 August 2026 | 3 hours 52 minutes | Late-arriving aircraft |
Delay causes
Why AS 1392 runs late
Late-arriving aircraft accounts for 69% of the 4,175 delay minutes carriers reported here, and the remaining four split what is left.
- 69%Late-arriving aircraft
- 24%Carrier
- 7%National Airspace System
- 1%Extreme weather
- 0%Security
69% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,175 reported delay minutes here, that single category outweighs weather by 69 to one. The split is drawn from 4,175 delay minutes reported on AS 1392.
Cancellations are rare at 0.66%, 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
6.3% 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 a little over an hour, which a normal layover absorbs.
The 933 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 303 flights under AS 1392 in the data flew SAN to PDX. 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. 303 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 1392
For a booking, read AS 1392 as 79.7% on time with 0.66% cancelled over 303 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SAN to PDX, every carrier and departure
- PDX to SAN, the return direction
- Alaska Airlines 1402 on the same route83.3%
- Alaska Airlines 576 on the same route88.3%
- Alaska Airlines 399 on the same route92.8%
- San Diego International (SAN) delay statistics
- Portland International (PDX) 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.