Flight number record

AS 227

Alaska Airlines · New York to San Francisco

Route: JFK → SFO
Departs: 13:00
Flights: 349
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AS 227, check with Alaska Airlines.

AS 227 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 349 flights, with a median arrival 10 minutes early.

Set against the rest of the country, AS 227's record is 7 points better than the US average of 77.6%. That gap is worth roughly 68 fewer late arrivals for every thousand flights.

On time

84.4%

Arrivals under 15 minutes late, of 340 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

2.29%

National rate is 1.81%

1 hour+ late

3.5%

National rate is 8.1%

These figures cover 349 flights between July 2025 and June 2026. The median arrival is 10 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 227 flies

AS 227 flies JFK to SFO without a single fixed slot. Its most common scheduled departure was 13:00, used on 129 of 349 flights, with 09:30 (116 flights) and 11:30 (104 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:00129 flights37.0%
Departs 09:30116 flights33.2%
Departs 11:30104 flights29.8%

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 13:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and AS 227 runs 6 points better at 84.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

AS 227 next to JFK to SFO

Every carrier on JFK to SFO combined arrived on time 74.1% of the time across 6,730 flights, so AS 227 is 10 points ahead of it. Alaska flew 1,108 flights on the same city pair under all its flight numbers, including this one, and those ran 71.4% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight beats by 5 points.

AS 227 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AS 227thin sample	349	84.4%	58 min	2.29%	B
All Alaska Airlines on JFK–SFO	1,108	71.4%	70 min	1.81%	C
All carriers on JFK–SFO	6,730	74.1%	71 min	1.92%	C
Alaska Airlines, whole network	293,372	79.1%	52 min	1.28%	B

Across the year

AS 227 quarter by quarter

AS 227 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.4% on time and its weakest Apr–Jun 2026 at 79.1%, a swing of 14 points on roughly 87 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 flights93.4%
Oct–Dec 202592 flights81.1%
Jan–Mar 202674 flights83.8%
Apr–Jun 202691 flights79.1%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, AS 227 did best on Saturday at 91.3% on time and worst on Monday at 76.0%. Each day rests on about 50 flights, so a gap of 15 points is worth noticing but could still narrow in another year.

Delay causes

Why AS 227 runs late

One category carries most of the weight here. National Airspace System accounts for 61% of the 3,080 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.

National Airspace System
61%
Carrier
34%
Extreme weather
4%
Security
1%
Late-arriving aircraft
1%

61% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,869 minutes out of 3,080, against a national NAS share of 21%. The split is drawn from 3,080 delay minutes reported on AS 227.

Cancellations sit at 2.29% against a national 1.81%, which is ordinary. Diversions add another 0.29%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.5% 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 2,586 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 349 flights under AS 227 in the data flew JFK to SFO. 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. 349 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 227

For a booking, read AS 227 as 84.4% on time with 2.29% cancelled over 349 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