Flight number record

AS 41

Alaska Airlines · New York to San Francisco

Route: JFK → SFO
Departs: 11:30
Flights: 302
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s AS 41, check with Alaska Airlines.

AS 41 draws a D. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 302 flights, with a median arrival 3 minutes late.

The national on-time rate over the same period is 77.3%, so AS 41 runs 13 points behind the country as a whole. Across a thousand flights that is about 129 extra late arrivals.

On time

64.4%

Arrivals under 15 minutes late, of 292 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

2.98%

National rate is 1.89%

1 hour+ late

13.0%

National rate is 8.3%

These figures cover 302 flights between September 2025 and August 2026. Beyond the headline rate, 13.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Schedule

When AS 41 flies

AS 41 flies JFK to SFO without a single fixed slot. Its most common scheduled departure was 11:30, used on 82 of 302 flights, with 20:29 (58 flights) and 20:24 (40 flights) next.

Departs 11:3082 flights27.2%
Departs 20:2958 flights19.2%
Departs 20:2440 flights13.2%

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 11:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and AS 41 runs 14 points worse at 64.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

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Against the route

AS 41 next to JFK to SFO

Every carrier on JFK to SFO combined arrived on time 71.4% of the time across 6,800 flights, so AS 41 is 7 points behind it. Alaska flew 1,113 flights on the same city pair under all its flight numbers, including this one, and those ran 71.7% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight trails by 15 points.

AS 41 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AS 41thin sample	302	64.4%	67 min	2.98%	D
All Alaska Airlines on JFK–SFO	1,113	71.7%	66 min	2.43%	C
All carriers on JFK–SFO	6,800	71.4%	69 min	2.57%	C
Alaska Airlines, whole network	309,844	79.7%	52 min	1.20%	B

Across the year

AS 41 quarter by quarter

AS 41 did not run the same all year. Its best quarter was Jan–Mar 2026 at 71.1% on time and its weakest Oct–Dec 2025 at 56.3%, a swing of 15 points on roughly 76 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 202530 flights—
Oct–Dec 202588 flights56.3%
Jan–Mar 202641 flights71.1%
Apr–Jun 202681 flights67.5%
Jul–Sep 202662 flights69.0%

Scale runs 50% to 75%. Rows with fewer than 30 flights show a dash.

By weekday, AS 41 did best on Tuesday at 76.3% on time and worst on Sunday at 50.0%. Each day rests on about 43 flights, so a gap of 26 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late AS 41 runs when it is late

AS 41 often beats the schedule: 84 of 292 completed flights, 29%, arrived 15 minutes or more early. The 104 late arrivals split 44 under half an hour, 22 between 30 and 60 minutes, and 38 an hour or more.

15+ min early84 flights28.8%
Within 15 min104 flights35.6%
15–29 min late44 flights15.1%
30–59 min late22 flights7.5%
1–2 hours late24 flights8.2%
2+ hours late14 flights4.8%

Scale runs 0% to 100%.

Share of 292 completed flights by arrival against schedule.

19 of 82 late departures made up the time and arrived on time, 23% of them. In the other direction, 41 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SFO.

The worst days

Worst days for AS 41

The latest arrival of the period was on 5 March 2026, 7 hours 34 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.

The latest arrivals of AS 41 in the period
Date	Arrived late by	Largest filed cause
5 March 2026	7 hours 34 minutes	Carrier
23 October 2025	6 hours 47 minutes	Carrier
30 October 2025	5 hours 44 minutes	Late-arriving aircraft
14 December 2025	5 hours 38 minutes	Late-arriving aircraft
7 June 2026	4 hours 9 minutes	Late-arriving aircraft

Delay causes

Why AS 41 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 6,978 reported delay minutes.

Late-arriving aircraft
40%
National Airspace System
35%
Carrier
24%
Security
1%
Extreme weather
1%

40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,978 reported delay minutes here, that single category outweighs weather by 40 to one. The split is drawn from 6,978 delay minutes reported on AS 41.

Cancellations run at 2.98%, against 1.89% nationally. That is roughly one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

13.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

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 302 flights under AS 41 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. 302 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 41

For a booking, the cancellation rate is the figure to plan around on AS 41: 2.98% of its 302 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.

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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures