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Route on-time record

SAN to SBP: most on-time flights and the best time to fly

San Diego (San Diego International Airport) to San Luis Obispo (San Luis County Regional Airport). 579 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 4.5% were cancelled. The most reliable flight number was SkyWest 3444 at 10:30 PM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

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SAN → SBP

San Diego to San Luis Obispo: 579 nonstop flights a year

On time (12 months)

77%

Cancelled

4.5%

avg delay 13 min

Best time to leave

9 AM to noon

97% on time vs 65% noon to 3 PM

Most reliable airline

SkyWest

74% chance on time

Check SAN to SBP fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · SkyWest 3444 · sold as United Express, Delta Connection, American Eagle or Alaska

    10:30 PM → 11:53 PM1h 23m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    72%

    chance on time

    On time (history)
    78%
    Cancelled
    10.1%
    Avg arrival delay
    13 min
    • Arrived on time 78% of the time (193 flights, Jun 2025 to May 2026).
    • Cancelled 10.1% of the time (22 of 218).
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 166 ground stops and delay programs started).
    • 57% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 193 flights

    Find 10:30 PM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 3370 · sold as United Express, Delta Connection, American Eagle or Alaska

    1:39 PM → 2:59 PM1h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-12.

    54%

    chance on time

    On time (history)
    33%
    Cancelled
    0.0%
    Avg arrival delay
    41 min
    • Arrived on time 33% of the time (21 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (Noon to 3 PM: 65% on time; 9 AM to noon: 97%).
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 166 ground stops and delay programs started).

    Limited track record · 21 flights

    Find 1:39 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)74%

    579 flights · 77% on time as flown · 4.5% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • 9 AM to noon97%

    34 flights · avg delay 1 min

  • Noon to 3 PM65%

    182 flights · avg delay 20 min

  • 3 to 6 PM89%

    100 flights · avg delay 13 min

  • After 9 PM77%

    242 flights · avg delay 11 min

Best day: Tuesday (89%). Worst: Friday (65%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
80
F
82
M
75
A
71
M
75
J
71
J
71
A
81
S
84
O
76
N
71
D
72

What delays this route

  • Late-arriving aircraft48%
  • Air traffic control and airport volume29%
  • Airline (crew, maintenance, boarding)18%
  • Severe weather5%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

Finding the most reliable connections from SAN to SBP…

SAN to SBP questions

What time of day is best to fly SAN to SBP?
9 AM to noon: 97% of flights arrived on time, against 65% for departures noon to 3 PM.
Which airline is most on time from SAN to SBP?
SkyWest, with a season-adjusted 74% chance of operating and arriving on time over 579 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on SAN to SBP?
June (71% on time); the best was September (84%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

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Live status: FAA delays and ground stops