Flight number record

AS 397

Alaska Airlines · Orlando to San Diego

Route: MCO → SAN
Departs: 18:13
Flights: 362
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AS 397, check with Alaska Airlines.

AS 397 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 362 flights, with a median arrival 6 minutes early.

The national on-time rate over the same period is 77.6%, so AS 397 runs 5 points behind the country as a whole. Across a thousand flights that is about 52 extra late arrivals.

On time

72.4%

Arrivals under 15 minutes late, of 359 completed flights

Avg delay

65 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.81%

1 hour+ late

10.9%

National rate is 8.1%

These figures cover 362 flights between July 2025 and June 2026. Beyond the headline rate, 10.9% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When AS 397 flies

AS 397 flies MCO to SAN without a single fixed slot. Its most common scheduled departure was 18:13, used on 50 of 362 flights, with 18:16 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 18:1350 flights13.8%
Departs 18:1645 flights12.4%

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 18:13 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and AS 397 runs 4 points better at 72.4%. 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 397 next to MCO to SAN

Every carrier on MCO to SAN combined arrived on time 75.9% of the time across 1,067 flights, so AS 397 is 4 points behind it. Alaska flew 629 flights on the same city pair under all its flight numbers, including this one, and those ran 80.9% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight trails by 7 points.

AS 397 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AS 397thin sample	362	72.4%	65 min	0.55%	C+
All Alaska Airlines on MCO–SAN	629	80.9%	64 min	0.79%	B+
All carriers on MCO–SAN	1,067	75.9%	55 min	0.66%	B+
Alaska Airlines, whole network	293,372	79.1%	52 min	1.28%	B

Across the year

AS 397 quarter by quarter

AS 397 did not run the same all year. Its best quarter was Oct–Dec 2025 at 84.4% on time and its weakest Jul–Sep 2025 at 49.4%, a swing of 35 points on roughly 91 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 flights49.4%
Oct–Dec 202590 flights84.4%
Jan–Mar 202689 flights84.3%
Apr–Jun 202691 flights71.4%

Scale runs 40% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, AS 397 did best on Tuesday at 82.7% on time and worst on Sunday at 62.7%. Each day rests on about 52 flights, so a gap of 20 points is worth noticing but could still narrow in another year.

Delay causes

Why AS 397 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 6,425 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.

Late-arriving aircraft
45%
National Airspace System
24%
Extreme weather
20%
Carrier
11%

Extreme weather accounts for 20% 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 3.1 times the usual weather exposure. The split is drawn from 6,425 delay minutes reported on AS 397.

Cancellations are rare at 0.55%, 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.9% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

At 2,149 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 362 flights under AS 397 in the data flew MCO 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. 362 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 397

For a booking, read AS 397 as 72.4% on time with 0.55% cancelled over 362 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