ON TIMEBOARD
LAX Los Angeles / SBP San Luis Obispo

LAX → SBP on time

Los Angeles LAX (Los Angeles, CA) to San Luis (San Luis Obispo, CA). Every scheduled flight, September 2025 to August 2026.

On time
85%
arrived < 15 min late
Cancelled
0.3%
629 flights
Typical arrival
−11 min
median vs schedule
When late
+81 min
average delay
Flights / day
2
1 airline

85% of flights from Los Angeles to San Luis Obispo arrived on time over the past 12 months. That is better than the typical U.S. route. The 4 p.m. departures ran on time 90% of the time; the 10 p.m. ones 83%. 5% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for LAX → SBP: when a flight was late, it was under 45 minutes late 61% of the time. About 1 in 27 flights landed an hour or more late, and 1 in 105 three hours or more; 0.3% were cancelled outright.

Share of all 629 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines62985%0.3%−11 min3.7%+81 minSkyWest

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at LAX). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%9 a.m. departures: too few flights (22 flights)9a10 a.m. departures: too few flights (12 flights)10a11 a.m. departures: too few flights (3 flights)11anoon departures: too few flights (21 flights)12p1 p.m. departures: too few flights (31 flights)1p2 p.m. departures: too few flights (17 flights)2p3 p.m. departures: too few flights3p4 p.m. departures: 90% on time (181 flights)904p5 p.m. departures: too few flights (18 flights)5p6 p.m. departures: too few flights (32 flights)6p7 p.m. departures: too few flights (2 flights)7p8 p.m. departures: too few flights (45 flights)8p9 p.m. departures: too few flights (1 flights)9p10 p.m. departures: 83% on time (244 flights)8310p
LAX → SBP, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On LAX → SBP, each airline's last flight of the day was cancelled 0.4% of the time, against 0.4% for its earlier flights, about the same. It arrived 3+ hours late 1.1% of the time (earlier flights: 0.4%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
United Airlines10:38 p.m.0.4%1.1%0.4%first flight 4:23 p.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

By month

Each calendar month pooled over 2023–2026. Best: April (91%). Worst: July (80%).

40%70%100%Jan: 89% on time (146 flights)89JanFeb: 80% on time (133 flights)80FebMar: 85% on time (137 flights)85MarApr: 91% on time (171 flights)91AprMay: 90% on time (186 flights)90MayJun: 84% on time (179 flights)84JunJul: 80% on time (176 flights)80JulAug: 90% on time (176 flights)90AugSep: 83% on time (168 flights)83SepOct: 86% on time (184 flights)86OctNov: 82% on time (140 flights)82NovDec: 81% on time (144 flights)81Dec

By day of week

DayFlightsOn timeCancelled
Monday97——
Tuesday83——
Wednesday85——
Thursday97——
Friday91——
Saturday80——
Sunday96——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Severe weather 38%Airline (crew, maintenance, ops) 28%Air traffic & airport (NAS) 18%Late inbound plane 17%Security 1%

Cancellations: weather 1 · air traffic/airport 1

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
UA 55504:10 p.m.19289%0.0%−8 minSkyWest
UA 586310:38 p.m.15881%0.0%−10 minSkyWest

Worst days in the past year

DateFlightsOn timeCancelled
Oct 25, 2025367%0
Aug 31, 2026367%0
Aug 17, 20263100%0
Aug 24, 20263100%0

Questions

How often are flights from LAX to SBP on time?

85% of 629 scheduled flights from Los Angeles, CA to San Luis Obispo, CA arrived within 15 minutes of schedule between September 2025 and August 2026. 0.3% were cancelled.

What is the best time of day to fly LAX to SBP?

Flights scheduled to leave at 4 p.m. were the most reliable (90% on time). The 10 p.m. departures were the least (83%).

What month has the most delays from LAX to SBP?

July (80% on time). The best month is April (91%), over 2023–2026.

Is the last flight of the day from LAX to SBP more likely to be cancelled?

Not much. Each airline's last LAX–SBP flight of the day was cancelled 0.4% of the time over the past year, against 0.4% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.