Flight number record

AS 494

Alaska Airlines · Seattle to San Antonio

Route: SEA → SAT
Departs: 12:33
Flights: 335
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AS 494, check with Alaska Airlines.

AS 494 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land roughly 40 minutes behind schedule. That rests on 335 flights, with a median arrival 3 minutes early.

The national on-time rate over the same period is 77.6%, so AS 494 runs 4 points behind the country as a whole. Across a thousand flights that is about 41 extra late arrivals.

On time

73.5%

Arrivals under 15 minutes late, of 332 completed flights

Avg delay

42 min

Across delayed arrivals only, not all flights

Cancelled

0.90%

National rate is 1.81%

1 hour+ late

3.9%

National rate is 8.1%

These figures cover 335 flights between July 2025 and June 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.

Schedule

When AS 494 flies

AS 494 flies SEA to SAT without a single fixed slot. Its most common scheduled departure was 12:33, used on 50 of 335 flights, with 10:53 (35 flights) and 11:40 (35 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:3350 flights14.9%
Departs 10:5335 flights10.4%
Departs 11:4035 flights10.4%

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 12:33 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and AS 494 runs 5 points worse at 73.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

AS 494 next to SEA to SAT

Every carrier on SEA to SAT combined arrived on time 76.4% of the time across 558 flights, so AS 494 is 3 points behind it. Across its whole network Alaska Airlines managed 79.1%, which this flight trails by 6 points.

AS 494 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AS 494thin sample	335	73.5%	42 min	0.90%	C+
All Alaska Airlines on SEA–SAT	558	76.4%	43 min	1.08%	B
All carriers on SEA–SAT	558	76.4%	43 min	1.08%	B
Alaska Airlines, whole network	293,372	79.1%	52 min	1.28%	B

Across the year

AS 494 quarter by quarter

AS 494 did not run the same all year. Its best quarter was Apr–Jun 2026 at 81.3% on time and its weakest Jul–Sep 2025 at 55.4%, a swing of 26 points on roughly 84 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 202574 flights55.4%
Oct–Dec 202583 flights76.2%
Jan–Mar 202687 flights78.2%
Apr–Jun 202691 flights81.3%

Scale runs 45% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, AS 494 ranged from 68.8% on Sunday to 78.3% on Tuesday. With about 48 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why AS 494 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 3,676 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.

Late-arriving aircraft
45%
Carrier
40%
National Airspace System
14%
Extreme weather
1%

45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 3,676 reported delay minutes here, that single category outweighs weather by 45 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 3,676 delay minutes reported on AS 494.

Cancellations sit at 0.90% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.9% 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.

At 1,774 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

AS 494 is not only a SEA to SAT flight. It also flew SAT to SEA (269 flights, 69.4% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 335 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.

Other routes flown as AS 494
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
SAT to SEAthin sample	269	69.4%	46 min	1.12%	C

What to do with this

Booking AS 494

For a booking, read AS 494 as 73.5% on time with 0.90% cancelled over 335 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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.

Key figures