Flight number record
AS 700
Alaska Airlines · Seattle to Phoenix
- Route
- SEA → PHX
- Departs
- 14:02
- Flights
- 356
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 700, check with Alaska Airlines.
AS 700 lands a B+, about a point 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 about 45 minutes on average. That rests on 356 flights, with a median arrival 5 minutes early.
Key figures
On time
78.4%
Arrivals under 15 minutes late, of 356 completed flights
Avg delay
45 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
4.5%
National rate is 8.3%
These figures cover 356 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 700 flies
AS 700 flies SEA to PHX without a single fixed slot. Its most common scheduled departure was 14:02, used on 71 of 356 flights, with 13:44 (69 flights) and 13:58 (54 flights) next.
- Departs 14:0271 flights19.9%
- Departs 13:4469 flights19.4%
- Departs 13:5854 flights15.2%
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 14:02 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and AS 700 runs 7 points better at 78.4%. 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 700 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 700 is about level with 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%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 700thin sample | 356 | 78.4% | 45 min | 0.00% | B+ |
| 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 700 quarter by quarter
AS 700 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jul–Sep 2026 at 55.0%, a swing of 35 points on roughly 71 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 flights90.0%
- Oct–Dec 202590 flights71.1%
- Jan–Mar 202689 flights89.9%
- Apr–Jun 202687 flights86.2%
- Jul–Sep 202660 flights55.0%
Scale runs 45% to 95%.
By weekday, AS 700 did best on Friday at 84.3% on time and worst on Thursday at 69.2%. Each day rests on about 51 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 700 runs when it is late
The 77 late arrivals split 35 under half an hour, 26 between 30 and 60 minutes, and 16 an hour or more.
- 15+ min early84 flights23.6%
- Within 15 min195 flights54.8%
- 15–29 min late35 flights9.8%
- 30–59 min late26 flights7.3%
- 1–2 hours late12 flights3.4%
- 2+ hours late4 flights1.1%
Scale runs 0% to 100%.
Share of 356 completed flights by arrival against schedule.
A late pushback is often recovered here: of 80 departures that left 15 minutes late or more, 24 still arrived on time. In the other direction, 21 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 700
The latest arrival of the period was on 13 March 2026, 3 hours 13 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 March 2026 | 3 hours 13 minutes | Late-arriving aircraft |
| 30 November 2025 | 2 hours 59 minutes | Carrier |
| 26 April 2026 | 2 hours 24 minutes | Carrier |
| 21 June 2026 | 2 hours 10 minutes | Late-arriving aircraft |
| 13 August 2026 | 1 hour 55 minutes | Late-arriving aircraft |
Delay causes
Why AS 700 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 3,444 reported delay minutes.
- 35%Late-arriving aircraft
- 34%Carrier
- 29%National Airspace System
- 2%Extreme weather
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,444 reported delay minutes here, that single category outweighs weather by 23 to one. The split is drawn from 3,444 delay minutes reported on AS 700.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are 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 4.5% 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.
Every one of the 356 flights under AS 700 in the data flew SEA to PHX. 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. 356 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 700
For a booking, read AS 700 as 78.4% on time with 0.00% cancelled over 356 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%
- Delta Air Lines 2698 on the same route73.7%
- Alaska Airlines 744 on the same route74.7%
- Alaska Airlines 632 on the same route74.0%
- 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.