Flight number record

AS 174

Alaska Airlines · Seattle to Fairbanks

Route: SEA → FAI
Departs: 09:50
Flights: 294
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AS 174, check with Alaska Airlines.

AS 174 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 294 flights, with a median arrival 1 minute early.

On time

74.9%

Arrivals under 15 minutes late, of 291 completed flights

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

0.68%

National rate is 1.81%

1 hour+ late

4.8%

National rate is 8.1%

These figures cover 294 flights between July 2025 and June 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.

Schedule

When AS 174 flies

AS 174 flies SEA to FAI without a single fixed slot. Its most common scheduled departure was 09:50, used on 176 of 294 flights, with 09:57 (43 flights) and 10:45 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 09:50176 flights59.9%
Departs 09:5743 flights14.6%
Departs 10:4533 flights11.2%

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 09:50 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and AS 174 runs 9 points worse at 74.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

AS 174 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 174 is 3 points behind 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 trails by 4 points.

AS 174 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AS 174thin sample	294	74.9%	59 min	0.68%	C+
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 174 quarter by quarter

AS 174 did not run the same all year. Its best quarter was Jan–Mar 2026 at 84.3% on time and its weakest Oct–Dec 2025 at 67.4%, a swing of 17 points on roughly 98 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 202592 flights69.6%
Oct–Dec 202591 flights67.4%
Jan–Mar 202690 flights84.3%
Apr–Jun 202621 flights—

Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, AS 174 did best on Wednesday at 82.9% on time and worst on Friday at 65.9%. Each day rests on about 42 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why AS 174 runs late

One category carries most of the weight here. Carrier accounts for 43% of the 4,320 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.

Carrier
43%
National Airspace System
28%
Late-arriving aircraft
21%
Extreme weather
7%

The largest share of delay minutes, 43%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,867 of the 4,320 delay minutes reported here. The split is drawn from 4,320 delay minutes reported on AS 174.

Cancellations are rare at 0.68%, 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 4.8% 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 294 flights under AS 174 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. 294 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 174

For a booking, read AS 174 as 74.9% on time with 0.68% cancelled over 294 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