Flight number record
AS 798
Alaska Airlines · Los Angeles to Seattle
- Route
- LAX → SEA
- Departs
- 10:00
- Flights
- 261
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. When something does go wrong the average delay runs about an hour. That rests on 261 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 77.3%. That gap is worth roughly 92 fewer late arrivals for every thousand flights.
Key figures
On time
86.5%
Arrivals under 15 minutes late, of 260 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
0.38%
National rate is 1.89%
1 hour+ late
3.5%
National rate is 8.3%
These figures cover 261 flights between September 2025 and August 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.
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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 140 of 261 flights, with 08:46 (34 flights) and 09:30 (32 flights) next.
- Departs 10:00140 flights53.6%
- Departs 08:4634 flights13.0%
- Departs 09:3032 flights12.3%
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 10:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AS 798 runs 3 points better at 86.5%. 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 798 next to LAX to SEA
Every carrier on LAX to SEA combined arrived on time 85.0% of the time across 7,534 flights, so AS 798 is 2 points ahead of it. Alaska flew 3,292 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 79.7%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 798thin sample | 261 | 86.5% | 64 min | 0.38% | A+ |
| All Alaska Airlines on LAX–SEA | 3,292 | 85.2% | 52 min | 0.88% | A+ |
| All carriers on LAX–SEA | 7,534 | 85.0% | 62 min | 0.84% | A+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 798 quarter by quarter
Quarter by quarter AS 798 held fairly steady: 89.4% in Oct–Dec 2025, 87.2% in Jan–Mar 2026, 85.9% in Apr–Jun 2026 and 81.8% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Oct–Dec 202566 flights89.4%
- Jan–Mar 202686 flights87.2%
- Apr–Jun 202665 flights85.9%
- Jul–Sep 202644 flights81.8%
Scale runs 75% to 95%.
By weekday, AS 798 did best on Thursday at 93.0% on time and worst on Sunday at 81.0%. Each day rests on about 37 flights, so a gap of 12 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 798 runs when it is late
AS 798 often beats the schedule: 82 of 260 completed flights, 32%, arrived 15 minutes or more early. Most of the lateness is short. 20 of the 35 late arrivals were under half an hour behind, and 9 reached an hour or more.
- 15+ min early82 flights31.5%
- Within 15 min143 flights55.0%
- 15–29 min late20 flights7.7%
- 30–59 min late6 flights2.3%
- 1–2 hours late4 flights1.5%
- 2+ hours late5 flights1.9%
Scale runs 0% to 100%.
Share of 260 completed flights by arrival against schedule.
A late pushback is often recovered here: of 38 departures that left 15 minutes late or more, 13 still arrived on time. 10 flights left on time and still arrived late.
The worst days
Worst days for AS 798
The latest arrival of the period was on 3 August 2026, 7 hours 49 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 August 2026 | 7 hours 49 minutes | Late-arriving aircraft |
| 12 February 2026 | 4 hours 36 minutes | Carrier |
| 2 August 2026 | 3 hours 16 minutes | Carrier |
| 13 March 2026 | 3 hours 2 minutes | National Airspace System |
| 16 August 2026 | 2 hours 43 minutes | Late-arriving aircraft |
Delay causes
Why AS 798 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 2,233 reported delay minutes.
- 38%Late-arriving aircraft
- 38%Carrier
- 25%National Airspace System
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,233 reported delay minutes here, that single category outweighs weather by 38 to one. The split is drawn from 2,233 delay minutes reported on AS 798.
Cancellations are rare at 0.38%, 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 3.5% 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 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.
Every one of the 261 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. 261 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: 86.5% on time and 0.38% 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 route83.1%
- Delta Air Lines 2980 on the same route92.2%
- Delta Air Lines 2640 on the same route81.8%
- Delta Air Lines 1714 on the same route91.7%
- Delta Air Lines 1045 on the same route86.9%
- Alaska Airlines 1305 on the same route73.3%
- 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
- 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.