Flight number record
AS 658
Alaska Airlines · Seattle to Las Vegas
- Route
- SEA → LAS
- Departs
- 13:00
- Flights
- 254
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 658, check with Alaska Airlines.
AS 658 lands a B+, 4 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 about 40 minutes on average. That rests on 254 flights, with a median arrival 3 minutes early.
Set against the rest of the country, AS 658's record is 4 points better than the US average of 77.3%. That gap is worth roughly 41 fewer late arrivals for every thousand flights.
Key figures
On time
81.4%
Arrivals under 15 minutes late, of 253 completed flights
Avg delay
41 min
Across delayed arrivals only, not all flights
Cancelled
0.39%
National rate is 1.89%
1 hour+ late
3.2%
National rate is 8.3%
These figures cover 254 flights between September 2025 and August 2026. The median arrival is 3 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 658 flies
AS 658 flies SEA to LAS without a single fixed slot. Its most common scheduled departure was 13:00, used on 70 of 254 flights, with 12:00 (67 flights) and 12:36 (30 flights) next.
- Departs 13:0070 flights27.6%
- Departs 12:0067 flights26.4%
- Departs 12:3630 flights11.8%
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 13:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and AS 658 runs 3 points better at 81.4%. 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 658 next to SEA to LAS
Every carrier on SEA to LAS combined arrived on time 77.6% of the time across 5,620 flights, so AS 658 is 4 points ahead of it. Alaska flew 2,612 flights on the same city pair under all its flight numbers, including this one, and those ran 78.7% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 658thin sample | 254 | 81.4% | 41 min | 0.39% | B+ |
| All Alaska Airlines on SEA–LAS | 2,612 | 78.7% | 48 min | 0.84% | B+ |
| All carriers on SEA–LAS | 5,620 | 77.6% | 56 min | 0.93% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 658 quarter by quarter
AS 658 did not run the same all year. Its best quarter was Apr–Jun 2026 at 85.7% on time and its weakest Oct–Dec 2025 at 72.2%, a swing of 14 points on roughly 51 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 flights83.3%
- Oct–Dec 202536 flights72.2%
- Jan–Mar 202648 flights83.0%
- Apr–Jun 202691 flights85.7%
- Jul–Sep 202649 flights77.6%
Scale runs 65% to 90%.
By weekday, AS 658 did best on Saturday at 91.9% on time and worst on Monday at 70.3%. Each day rests on about 36 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 658 runs when it is late
Most of the lateness is short. 26 of the 47 late arrivals were under half an hour behind, and 8 reached an hour or more.
- 15+ min early54 flights21.3%
- Within 15 min152 flights60.1%
- 15–29 min late26 flights10.3%
- 30–59 min late13 flights5.1%
- 1–2 hours late5 flights2.0%
- 2+ hours late3 flights1.2%
Scale runs 0% to 100%.
Share of 253 completed flights by arrival against schedule.
A late pushback is often recovered here: of 56 departures that left 15 minutes late or more, 23 still arrived on time. In the other direction, 14 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 LAS.
The worst days
Worst days for AS 658
The latest arrival of the period was on 16 July 2026, 4 hours 6 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On four of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 July 2026 | 4 hours 6 minutes | Late-arriving aircraft |
| 26 June 2026 | 2 hours 22 minutes | Carrier |
| 22 February 2026 | 2 hours 11 minutes | Carrier |
| 14 June 2026 | 1 hour 42 minutes | Carrier |
| 5 July 2026 | 1 hour 29 minutes | Carrier |
Delay causes
Why AS 658 runs late
Carrier accounts for 47% of the 1,926 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Carrier
- 31%Late-arriving aircraft
- 23%National Airspace System
The largest share of delay minutes, 47%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 897 of the 1,926 delay minutes reported here. The split is drawn from 1,926 delay minutes reported on AS 658.
Cancellations are rare at 0.39%, 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 3.2% 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 867 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 three other city pairs in the data, including SEA to SJC (13), SEA to LAX (5) and SEA to TUS (1), but none flew often enough under AS 658 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SEA to LAS only.
One caution: this is a thin sample. 254 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 658
For a booking, read AS 658 as 81.4% on time with 0.39% cancelled over 254 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SEA to LAS, every carrier and departure
- LAS to SEA, the return direction
- Delta Air Lines 2922 on the same route91.1%
- Delta Air Lines 2905 on the same route82.9%
- Delta Air Lines 2880 on the same route80.1%
- Delta Air Lines 2949 on the same route78.9%
- Alaska Airlines 738 on the same route78.3%
- Alaska Airlines 478 on the same route73.3%
- Seattle-Tacoma International (SEA) delay statistics
- Harry Reid International (LAS) 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.