Flight number record

AS 35

Alaska Airlines · New York to San Diego

Route: JFK → SAN
Departs: 09:30
Flights: 266
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s AS 35, check with Alaska Airlines.

AS 35 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 77.3%. The late ones land a little over an hour behind schedule. That rests on 266 flights, with a median arrival 1 minute early.

On time

74.6%

Arrivals under 15 minutes late, of 264 completed flights

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

0.75%

National rate is 1.89%

1 hour+ late

6.8%

National rate is 8.3%

These figures cover 266 flights between September 2025 and August 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.

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Schedule

When AS 35 flies

AS 35 flies JFK to SAN without a single fixed slot. Its most common scheduled departure was 09:30, used on 107 of 266 flights, with 11:30 (70 flights) and 10:00 (55 flights) next.

Departs 09:30107 flights40.2%
Departs 11:3070 flights26.3%
Departs 10:0055 flights20.7%

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 09:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AS 35 runs 9 points worse at 74.6%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

AS 35 next to JFK to SAN

Every carrier on JFK to SAN combined arrived on time 78.0% of the time across 2,417 flights, so AS 35 is 3 points behind it. Alaska flew 647 flights on the same city pair under all its flight numbers, including this one, and those ran 76.4% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight trails by 5 points.

AS 35 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AS 35thin sample	266	74.6%	77 min	0.75%	C+
All Alaska Airlines on JFK–SAN	647	76.4%	69 min	1.55%	B
All carriers on JFK–SAN	2,417	78.0%	60 min	2.85%	B
Alaska Airlines, whole network	309,844	79.7%	52 min	1.20%	B

Across the year

AS 35 quarter by quarter

AS 35 did not run the same all year. Its best quarter was Apr–Jun 2026 at 84.1% on time and its weakest Oct–Dec 2025 at 70.3%, a swing of 14 points on roughly 89 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 202591 flights70.3%
Jan–Mar 202620 flights—
Apr–Jun 202663 flights84.1%
Jul–Sep 202662 flights72.1%

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

By weekday, AS 35 did best on Tuesday at 84.2% on time and worst on Sunday at 64.9%. Each day rests on about 38 flights, so a gap of 19 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late AS 35 runs when it is late

AS 35 often beats the schedule: 75 of 264 completed flights, 28%, arrived 15 minutes or more early. The 67 late arrivals split 27 under half an hour, 22 between 30 and 60 minutes, and 18 an hour or more.

15+ min early75 flights28.4%
Within 15 min122 flights46.2%
15–29 min late27 flights10.2%
30–59 min late22 flights8.3%
1–2 hours late8 flights3.0%
2+ hours late10 flights3.8%

Scale runs 0% to 100%.

Share of 264 completed flights by arrival against schedule.

10 of 45 late departures made up the time and arrived on time, 22% of them. In the other direction, 32 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 SAN.

The worst days

Worst days for AS 35

The latest arrival of the period was on 4 December 2025, 10 hours 53 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 extreme weather.

The latest arrivals of AS 35 in the period
Date	Arrived late by	Largest filed cause
4 December 2025	10 hours 53 minutes	Carrier
8 August 2026	7 hours 34 minutes	Extreme weather
21 July 2026	7 hours 5 minutes	Extreme weather
18 July 2026	6 hours 45 minutes	Extreme weather
7 September 2025	4 hours 28 minutes	Carrier

Delay causes

Why AS 35 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 5,167 reported delay minutes.

National Airspace System
37%
Carrier
36%
Extreme weather
24%
Late-arriving aircraft
3%
Security
1%

Extreme weather accounts for 24% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.0 times the usual weather exposure. The split is drawn from 5,167 delay minutes reported on AS 35.

Cancellations are rare at 0.75%, below the national 1.89% 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

6.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

At 2,446 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 266 flights under AS 35 in the data flew JFK to SAN. 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. 266 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 35

For a booking, read AS 35 as 74.6% on time with 0.75% cancelled over 266 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures