Flight number record
AS 798
Alaska Airlines · Los Angeles to Seattle
- Route
- LAX → SEA
- Departs
- 10:00
- Flights
- 253
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s AS 798, check with Alaska Airlines.
AS 798 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 253 flights, with a median arrival 9 minutes early.
Set against the rest of the country, AS 798's record is 9 points better than the US average of 77.6%. That gap is worth roughly 85 fewer late arrivals for every thousand flights.
Key figures
On time
86.1%
Arrivals under 15 minutes late, of 251 completed flights
Avg delay
59 min
Across delayed arrivals only, not all flights
Cancelled
0.79%
National rate is 1.81%
1 hour+ late
4.4%
National rate is 8.1%
These figures cover 253 flights between July 2025 and June 2026. The median arrival is 9 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.
Schedule
When AS 798 flies
AS 798 flies LAX to SEA without a single fixed slot. Its most common scheduled departure was 10:00, used on 105 of 253 flights, with 09:50 (36 flights) and 08:46 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 10:00105 flights41.5%
- Departs 09:5036 flights14.2%
- Departs 08:4634 flights13.4%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 10:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and AS 798 runs 2 points better at 86.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
AS 798 next to LAX to SEA
Every carrier on LAX to SEA combined arrived on time 85.4% of the time across 7,424 flights, so AS 798 is about level with it. Alaska flew 3,279 flights on the same city pair under all its flight numbers, including this one, and those ran 85.2% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 798thin sample | 253 | 86.1% | 59 min | 0.79% | A+ |
| All Alaska Airlines on LAX–SEA | 3,279 | 85.2% | 49 min | 1.10% | A |
| All carriers on LAX–SEA | 7,424 | 85.4% | 64 min | 0.98% | A+ |
| Alaska Airlines, whole network | 293,372 | 79.1% | 52 min | 1.28% | B |
Across the year
AS 798 quarter by quarter
AS 798 did not run the same all year. Its best quarter was Oct–Dec 2025 at 89.4% on time and its weakest Jul–Sep 2025 at 77.1%, a swing of 12 points on roughly 63 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 202536 flights77.1%
- Oct–Dec 202566 flights89.4%
- Jan–Mar 202686 flights87.2%
- Apr–Jun 202665 flights85.9%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AS 798 ranged from 81.8% on Tuesday to 93.3% on Friday. With about 36 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.
Delay causes
Why AS 798 runs late
One category carries most of the weight here. Carrier accounts for 52% of the 2,080 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 52%Carrier
- 25%National Airspace System
- 23%Late-arriving aircraft
The largest share of delay minutes, 52%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,083 of the 2,080 delay minutes reported here. The split is drawn from 2,080 delay minutes reported on AS 798.
Cancellations are rare at 0.79%, below the national 1.81% 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 4.4% land an hour or more behind schedule, against 8.1% 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 954 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
Every one of the 253 flights under AS 798 in the data flew LAX to SEA. 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. 253 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 798
For a booking, AS 798 has one of the better records a US domestic flight can show: 86.1% on time and 0.79% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- LAX to SEA, every carrier and departure
- SEA to LAX, the return direction
- Delta Air Lines 2606 on the same route84.8%
- Delta Air Lines 2980 on the same route91.9%
- Delta Air Lines 2640 on the same route82.4%
- Delta Air Lines 1714 on the same route92.5%
- Delta Air Lines 1045 on the same route88.8%
- Alaska Airlines 1301 on the same route86.8%
- Los Angeles International (LAX) delay statistics
- Seattle-Tacoma International (SEA) 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
- Worst months to fly in the US, ranked by the data
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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.