Flight number record
AS 397
Alaska Airlines · Orlando to San Diego
- Route
- MCO → SAN
- Departs
- 19:20
- Flights
- 361
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AS 397, check with Alaska Airlines.
AS 397 sits in the middle of the pack with a B+. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 361 flights, with a median arrival 8 minutes early.
Key figures
On time
75.3%
Arrivals under 15 minutes late, of 360 completed flights
Avg delay
59 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
8.1%
National rate is 8.3%
These figures cover 361 flights between September 2025 and August 2026. Beyond the headline rate, 8.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When AS 397 flies
AS 397 flies MCO to SAN without a single fixed slot. Its most common scheduled departure was 19:20, used on 69 of 361 flights.
- Departs 19:2069 flights19.1%
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 19:20 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and AS 397 runs 7 points better at 75.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
AS 397 next to MCO to SAN
Every carrier on MCO to SAN combined arrived on time 76.7% of the time across 1,086 flights, so AS 397 is about level with it. Alaska flew 627 flights on the same city pair under all its flight numbers, including this one, and those ran 82.2% on time. Across its whole network Alaska Airlines managed 79.7%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AS 397thin sample | 361 | 75.3% | 59 min | 0.00% | B+ |
| All Alaska Airlines on MCO–SAN | 627 | 82.2% | 60 min | 0.64% | B+ |
| All carriers on MCO–SAN | 1,086 | 76.7% | 54 min | 0.64% | B+ |
| Alaska Airlines, whole network | 309,844 | 79.7% | 52 min | 1.20% | 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 2026 at 65.6%, a swing of 19 points on roughly 90 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 202590 flights84.4%
- Jan–Mar 202689 flights84.3%
- Apr–Jun 202691 flights71.4%
- Jul–Sep 202661 flights65.6%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, AS 397 did best on Tuesday at 88.2% on time and worst on Sunday at 61.5%. Each day rests on about 52 flights, so a gap of 27 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AS 397 runs when it is late
AS 397 often beats the schedule: 140 of 360 completed flights, 39%, arrived 15 minutes or more early. The 89 late arrivals split 32 under half an hour, 28 between 30 and 60 minutes, and 29 an hour or more.
- 15+ min early140 flights38.9%
- Within 15 min131 flights36.4%
- 15–29 min late32 flights8.9%
- 30–59 min late28 flights7.8%
- 1–2 hours late21 flights5.8%
- 2+ hours late8 flights2.2%
Scale runs 0% to 100%.
Share of 360 completed flights by arrival against schedule.
A late pushback is often recovered here: of 108 departures that left 15 minutes late or more, 42 still arrived on time. In the other direction, 23 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 397
The latest arrival of the period was on 3 January 2026, 5 hours 9 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 January 2026 | 5 hours 9 minutes | Late-arriving aircraft |
| 16 March 2026 | 4 hours 9 minutes | Extreme weather |
| 18 September 2025 | 3 hours 55 minutes | Late-arriving aircraft |
| 25 October 2025 | 2 hours 45 minutes | Late-arriving aircraft |
| 15 March 2026 | 2 hours 35 minutes | National Airspace System |
Delay causes
Why AS 397 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 5,209 reported delay minutes.
- 38%Late-arriving aircraft
- 30%National Airspace System
- 17%Extreme weather
- 15%Carrier
- 0%Security
Extreme weather accounts for 17% 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 2.8 times the usual weather exposure. The split is drawn from 5,209 delay minutes reported on AS 397.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
8.1% 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 about an hour, which a normal layover absorbs.
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 361 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. 361 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 75.3% on time with 0.00% cancelled over 361 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- MCO to SAN, every carrier and departure
- SAN to MCO, the return direction
- Orlando International (MCO) delay statistics
- San Diego International (SAN) delay statistics
- Alaska Airlines on-time record
- Every Alaska Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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 ; recomputed monthly. How this data is collected.