Flight number record
AS 632
Alaska Airlines · Seattle to Phoenix
- Route
- SEA → PHX
- Departs
- 19:55
- Flights
- 323
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 632, check with Alaska Airlines.
AS 632 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land roughly 40 minutes behind schedule. That rests on 323 flights, with a median arrival 1 minute late.
Key figures
On time
74.0%
Arrivals under 15 minutes late, of 319 completed flights
Avg delay
42 min
Across delayed arrivals only, not all flights
Cancelled
0.31%
National rate is 1.89%
1 hour+ late
3.8%
National rate is 8.3%
These figures cover 323 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
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Schedule
When AS 632 flies
AS 632 flies SEA to PHX without a single fixed slot. Its most common scheduled departure was 19:55, used on 70 of 323 flights, with 17:06 (65 flights) and 18:04 (33 flights) next.
- Departs 19:5570 flights21.7%
- Departs 17:0665 flights20.1%
- Departs 18:0433 flights10.2%
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 19:55 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and AS 632 runs 6 points better at 74.0%. 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 632 next to SEA to PHX
Every carrier on SEA to PHX combined arrived on time 78.2% of the time across 7,205 flights, so AS 632 is 4 points behind it. Alaska flew 2,889 flights on the same city pair under all its flight numbers, including this one, and those ran 79.2% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 632thin sample | 323 | 74.0% | 42 min | 0.31% | C+ |
| All Alaska Airlines on SEA–PHX | 2,889 | 79.2% | 45 min | 0.66% | B+ |
| All carriers on SEA–PHX | 7,205 | 78.2% | 57 min | 0.74% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 632 quarter by quarter
AS 632 did not run the same all year. Its best quarter was Jan–Mar 2026 at 83.1% on time and its weakest Jul–Sep 2025 at 60.0%, a swing of 23 points on roughly 65 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 flights60.0%
- Oct–Dec 202590 flights71.9%
- Jan–Mar 202671 flights83.1%
- Apr–Jun 202670 flights80.0%
- Jul–Sep 202662 flights66.1%
Scale runs 50% to 90%.
By weekday, AS 632 did best on Tuesday at 93.6% on time and worst on Sunday at 62.2%. Each day rests on about 46 flights, so a gap of 31 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 632 runs when it is late
The 83 late arrivals split 35 under half an hour, 36 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early72 flights22.6%
- Within 15 min164 flights51.4%
- 15–29 min late35 flights11.0%
- 30–59 min late36 flights11.3%
- 1–2 hours late9 flights2.8%
- 2+ hours late3 flights0.9%
Scale runs 0% to 100%.
Share of 319 completed flights by arrival against schedule.
13 of 74 late departures made up the time and arrived on time, 18% of them. In the other direction, 22 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at PHX.
The worst days
Worst days for AS 632
The latest arrival of the period was on 9 November 2025, 2 hours 53 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. Three of the five worst days fell in November 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 November 2025 | 2 hours 53 minutes | National Airspace System |
| 30 April 2026 | 2 hours 51 minutes | Late-arriving aircraft |
| 5 November 2025 | 2 hours 6 minutes | National Airspace System |
| 5 July 2026 | 1 hour 50 minutes | Late-arriving aircraft |
| 26 November 2025 | 1 hour 44 minutes | Late-arriving aircraft |
Delay causes
Why AS 632 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 3,480 reported delay minutes.
- 41%Late-arriving aircraft
- 35%National Airspace System
- 23%Carrier
- 1%Extreme weather
- 0%Security
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,480 reported delay minutes here, that single category outweighs weather by 28 to one. The split is drawn from 3,480 delay minutes reported on AS 632.
Cancellations are rare at 0.31%, 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 3.8% 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 1,107 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 PDX (1), but none flew often enough under AS 632 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SEA to PHX only.
One caution: this is a thin sample. 323 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 632
For a booking, read AS 632 as 74.0% on time with 0.31% cancelled over 323 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SEA to PHX, every carrier and departure
- PHX to SEA, the return direction
- Delta Air Lines 2419 on the same route89.8%
- Alaska Airlines 700 on the same route78.4%
- Delta Air Lines 2698 on the same route73.7%
- Alaska Airlines 744 on the same route74.7%
- Delta Air Lines 2442 on the same route80.4%
- Delta Air Lines 2447 on the same route78.9%
- Seattle-Tacoma International (SEA) delay statistics
- Phoenix Sky Harbor International (PHX) 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.