Flight number record
AS 676
Alaska Airlines · Las Vegas to Seattle
- Route
- LAS → SEA
- Departs
- 12:16
- Flights
- 355
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 676, check with Alaska Airlines.
AS 676 lands a B+, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 355 flights, with a median arrival 5 minutes early.
Key figures
On time
77.1%
Arrivals under 15 minutes late, of 353 completed flights
Avg delay
59 min
Across delayed arrivals only, not all flights
Cancelled
0.56%
National rate is 1.89%
1 hour+ late
5.9%
National rate is 8.3%
These figures cover 355 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When AS 676 flies
AS 676 flies LAS to SEA without a single fixed slot. Its most common scheduled departure was 12:16, used on 70 of 355 flights, with 14:00 (56 flights) and 15:58 (36 flights) next.
- Departs 12:1670 flights19.7%
- Departs 14:0056 flights15.8%
- Departs 15:5836 flights10.1%
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 12:16 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and AS 676 runs level with that at 77.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
AS 676 next to LAS to SEA
Every carrier on LAS to SEA combined arrived on time 82.1% of the time across 5,617 flights, so AS 676 is 5 points behind it. Alaska flew 2,610 flights on the same city pair under all its flight numbers, including this one, and those ran 83.2% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 676thin sample | 355 | 77.1% | 59 min | 0.56% | B+ |
| All Alaska Airlines on LAS–SEA | 2,610 | 83.2% | 66 min | 1.19% | B |
| All carriers on LAS–SEA | 5,617 | 82.1% | 64 min | 1.00% | B |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | B |
Across the year
AS 676 quarter by quarter
AS 676 did not run the same all year. Its best quarter was Jul–Sep 2026 at 86.9% on time and its weakest Oct–Dec 2025 at 69.3%, a swing of 18 points on roughly 89 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 202529 flights—
- Oct–Dec 202588 flights69.3%
- Jan–Mar 202685 flights85.9%
- Apr–Jun 202691 flights74.4%
- Jul–Sep 202662 flights86.9%
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, AS 676 did best on Saturday at 81.6% on time and worst on Friday at 66.0%. Each day rests on about 51 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 676 runs when it is late
The 81 late arrivals split 39 under half an hour, 21 between 30 and 60 minutes, and 21 an hour or more.
- 15+ min early79 flights22.4%
- Within 15 min193 flights54.7%
- 15–29 min late39 flights11.0%
- 30–59 min late21 flights5.9%
- 1–2 hours late12 flights3.4%
- 2+ hours late9 flights2.5%
Scale runs 0% to 100%.
Share of 353 completed flights by arrival against schedule.
A late pushback is often recovered here: of 102 departures that left 15 minutes late or more, 35 still arrived on time. 14 flights left on time and still arrived late.
The worst days
Worst days for AS 676
The latest arrival of the period was on 16 June 2026, 6 hours 29 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 |
|---|---|---|
| 16 June 2026 | 6 hours 29 minutes | Late-arriving aircraft |
| 8 December 2025 | 4 hours 57 minutes | Late-arriving aircraft |
| 13 March 2026 | 4 hours 12 minutes | Extreme weather |
| 17 April 2026 | 3 hours 21 minutes | Late-arriving aircraft |
| 15 October 2025 | 3 hours 17 minutes | Carrier |
Delay causes
Why AS 676 runs late
Late-arriving aircraft accounts for 66% of the 4,739 delay minutes carriers reported here, and the remaining four split what is left.
- 66%Late-arriving aircraft
- 14%National Airspace System
- 12%Carrier
- 7%Extreme weather
- 0%Security
66% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,739 reported delay minutes here, that single category outweighs weather by 10 to one. The split is drawn from 4,739 delay minutes reported on AS 676.
Cancellations are rare at 0.56%, 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
5.9% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
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.
Every one of the 355 flights under AS 676 in the data flew LAS 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. 355 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 676
For a booking, AS 676 is one of the weaker ways to fly LAS to SEA: 5 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- LAS to SEA, every carrier and departure
- SEA to LAS, the return direction
- Delta Air Lines 2844 on the same route94.7%
- Alaska Airlines 629 on the same route88.3%
- Alaska Airlines 479 on the same route84.4%
- Delta Air Lines 2880 on the same route84.5%
- Alaska Airlines 552 on the same route81.5%
- Alaska Airlines 701 on the same route95.5%
- Harry Reid International (LAS) 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.