Flight number record

AS 112

Alaska Airlines · Seattle to Fairbanks

Route: SEA → FAI
Departs: 23:50
Flights: 255
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AS 112, check with Alaska Airlines.

AS 112 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 roughly 40 minutes. That rests on 255 flights, with a median arrival 9 minutes early.

Set against the rest of the country, AS 112's record is 9 points better than the US average of 77.6%. That gap is worth roughly 86 fewer late arrivals for every thousand flights.

On time

86.2%

Arrivals under 15 minutes late, of 253 completed flights

Avg delay

42 min

Across delayed arrivals only, not all flights

Cancelled

0.78%

National rate is 1.81%

1 hour+ late

2.0%

National rate is 8.1%

These figures cover 255 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 112 flies

AS 112 flies SEA to FAI without a single fixed slot. Its most common scheduled departure was 23:50, used on 130 of 255 flights, with 23:45 (47 flights) and 23:49 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 23:50130 flights51.0%
Departs 23:4547 flights18.4%
Departs 23:4933 flights12.9%

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 23:50 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and AS 112 runs 16 points better at 86.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

AS 112 next to SEA to FAI

Every carrier on SEA to FAI combined arrived on time 77.8% of the time across 2,321 flights, so AS 112 is 8 points ahead of it. Alaska flew 1,839 flights on the same city pair under all its flight numbers, including this one, and those ran 77.3% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight beats by 7 points.

AS 112 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AS 112thin sample	255	86.2%	42 min	0.78%	A+
All Alaska Airlines on SEA–FAI	1,839	77.3%	44 min	0.71%	B+
All carriers on SEA–FAI	2,321	77.8%	50 min	1.03%	B
Alaska Airlines, whole network	293,372	79.1%	52 min	1.28%	B

Across the year

AS 112 quarter by quarter

Quarter by quarter AS 112 held fairly steady: 87.8% in Jul–Sep 2025, 86.5% in Oct–Dec 2025 and 83.8% in Jan–Mar 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202591 flights87.8%
Oct–Dec 202590 flights86.5%
Jan–Mar 202674 flights83.8%

Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, AS 112 did best on Monday at 94.6% on time and worst on Wednesday at 78.4%. Each day rests on about 36 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why AS 112 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 1,458 reported delay minutes.

Late-arriving aircraft
36%
Carrier
32%
National Airspace System
26%
Extreme weather
6%

36% 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 1,458 reported delay minutes here, that single category outweighs weather by 6 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 1,458 delay minutes reported on AS 112.

Cancellations are rare at 0.78%, 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 2.0% 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 1,533 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.

Every one of the 255 flights under AS 112 in the data flew SEA to FAI. 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. 255 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 112

For a booking, AS 112 has one of the better records a US domestic flight can show: 86.2% on time and 0.78% cancelled. That is a base rate, not a promise about any single 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