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Route on-time record

LAX to STS: most on-time flights and the best time to fly

Los Angeles (Los Angeles International Airport) to Santa Rosa (Charles M. Schulz Sonoma County Airport). 691 nonstop flights in Jun 2025 to May 2026, 87% arrived within 15 minutes and 2.5% were cancelled. The most reliable flight number was SkyWest 3009 at 5:27 PM.

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

LAX → STS

Los Angeles to Santa Rosa: 691 nonstop flights a year

On time (12 months)

87%

Cancelled

2.5%

avg delay 11 min

Best time to leave

3 to 6 PM

90% on time vs 85% before 9 AM

Most reliable airline

SkyWest

84% chance on time

Check LAX to STS 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 3009 · sold as United Express, Delta Connection, American Eagle or Alaska

    5:27 PM → 7:13 PM1h 46m nonstop

    Local times, typical schedule. Last flown 2026-04-21.

    89%

    chance on time

    On time (history)
    94%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 94% of the time (35 flights, Jun 2025 to May 2026).
    • Never cancelled in 35 scheduled flights.
    • Leaves in this route's most on-time window (3 to 6 PM: 90% on time; Before 9 AM: 85%).
    • Departs inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.

    Limited track record · 35 flights

    Find 5:27 PM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 3340 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:09 AM → 10:01 AM1h 52m nonstop

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

    88%

    chance on time

    On time (history)
    95%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 95% of the time (41 flights, Jun 2025 to May 2026).
    • Never cancelled in 41 scheduled flights.
    • Leaves in this route's least on-time window (Before 9 AM: 85% on time; 3 to 6 PM: 90%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).

    Limited track record · 41 flights

    Find 8:09 AM flight fares Opens this date on Aviasales

  3. #3 · Alaska 1316

    7:45 PM → 9:22 PM1h 37m nonstop

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

    87%

    chance on time

    On time (history)
    95%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 95% of the time (19 flights, Jun 2025 to May 2026).
    • Departs inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
    • Short track record (19 flights), so its score leans on the route's record at this hour.

    Limited track record · 19 flights

    Find Alaska 1316 fares Opens this date on Aviasales

  4. #4 · SkyWest 3377 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:19 AM → 10:11 AM1h 52m nonstop

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

    84%

    chance on time

    On time (history)
    85%
    Cancelled
    0.7%
    Avg arrival delay
    10 min
    • Arrived on time 85% of the time (296 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (Before 9 AM: 85% on time; 3 to 6 PM: 90%).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).

    Strong track record · 296 flights

    Find 8:19 AM flight fares Opens this date on Aviasales

  5. #5 · SkyWest 3348 · sold as United Express, Delta Connection, American Eagle or Alaska

    10:13 PM → 11:59 PM1h 46m nonstop

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

    79%

    chance on time

    On time (history)
    86%
    Cancelled
    11.7%
    Avg arrival delay
    9 min
    • Arrived on time 86% of the time (111 flights, Jun 2025 to May 2026).
    • Cancelled 11.7% of the time (15 of 128).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).

    Moderate track record · 111 flights

    Find 10:13 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)84%

    672 flights · 87% on time as flown · 2.5% cancel

On time by departure time

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

  • Before 9 AM85%

    162 flights · avg delay 11 min

  • 9 AM to noon87%

    183 flights · avg delay 8 min

  • 3 to 6 PM90%

    94 flights · avg delay 6 min

  • After 9 PM85%

    223 flights · avg delay 17 min

Best day: Tuesday (89%). Worst: Monday (78%).

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
81
F
77
M
85
A
90
M
87
J
81
J
84
A
83
S
85
O
79
N
80
D
76

What delays this route

  • Airline (crew, maintenance, boarding)43%
  • Late-arriving aircraft38%
  • Severe weather10%
  • Air traffic control and airport volume9%

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

LAX to STS questions

What time of day is best to fly LAX to STS?
3 to 6 PM: 90% of flights arrived on time, against 85% for departures before 9 AM.
Which airline is most on time from LAX to STS?
SkyWest, with a season-adjusted 84% chance of operating and arriving on time over 672 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 LAX to STS?
December (76% on time); the best was April (90%), 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.

More routes from LAX

Live status: FAA delays and ground stops