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Route on-time record

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

Los Angeles (Los Angeles International Airport) to San Antonio (San Antonio International Airport). 1,921 nonstop flights in Jun 2025 to May 2026, 83% arrived within 15 minutes and 0.5% were cancelled. The most reliable flight number was SkyWest 6307 at 9:30 AM.

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

LAX → SAT

Los Angeles to San Antonio: 1,921 nonstop flights a year

On time (12 months)

83%

Cancelled

0.5%

avg delay 12 min

Best time to leave

Before 9 AM

87% on time vs 75% 3 to 6 PM

Most reliable airline

SkyWest

85% chance on time

Check LAX to SAT fares

Lowest nonstop fare seen in the next two months: $326 (Southwest 4695 on 2026-10-29). 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 6307 · sold as United Express, Delta Connection, American Eagle or Alaska

    9:30 AM → 2:34 PM3h 04m nonstop

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

    90%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
    • 80% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find 9:30 AM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 6213 · sold as United Express, Delta Connection, American Eagle or Alaska

    10:10 AM → 3:11 PM2h 58m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    89%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 91% of the time (74 flights, Jun 2025 to May 2026).
    • Never cancelled in 74 scheduled flights.
    • 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 · 74 flights

    Find 10:10 AM flight fares Opens this date on Aviasales

  3. #3 · Delta 2568

    9:55 AM → 2:38 PM2h 48m nonstop

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

    88%

    chance on time

    On time (history)
    89%
    Cancelled
    1.2%
    Avg arrival delay
    11 min
    • Arrived on time 89% of the time (168 flights, Jun 2025 to May 2026).
    • 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 · 168 flights

    Find Delta 2568 fares Opens this date on Aviasales

  4. #4 · SkyWest 4962 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:30 PM → 11:29 PM2h 59m nonstop

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

    83%

    chance on time

    On time (history)
    83%
    Cancelled
    0.3%
    Avg arrival delay
    13 min
    • Arrived on time 83% of the time (314 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.

    Strong track record · 314 flights

    Find 6:30 PM flight fares Opens this date on Aviasales

  5. #5 · Southwest 2870

    9:35 AM → 2:20 PM2h 45m nonstop

    Local times, typical schedule. Last flown 2026-05-27.

    81%

    chance on time

    On time (history)
    81%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 81% of the time (16 flights, Jun 2025 to May 2026).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
    • Short track record (16 flights), so its score leans on the airline's record at this hour.

    Limited track record · 16 flights

    Find Southwest 2870 fares Opens this date on Aviasales

  6. #6 · Delta 2686

    6:45 PM → 11:29 PM2h 46m nonstop

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

    80%

    chance on time

    On time (history)
    80%
    Cancelled
    0.3%
    Avg arrival delay
    15 min
    • Arrived on time 80% of the time (321 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.

    Strong track record · 321 flights

    Find Delta 2686 fares Opens this date on Aviasales

  7. #7 · Southwest 2889

    8:05 AM → 12:45 PM2h 40m nonstop

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

    67%

    chance on time

    On time (history)
    54%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 54% of the time (39 flights, Jun 2025 to May 2026).
    • Never cancelled in 39 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 75%).
    • 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 · 39 flights

    Find Southwest 2889 fares Opens this date on Aviasales

  8. #8 · Southwest 4092

    1:55 PM → 6:35 PM2h 40m nonstop

    Local times, typical schedule. Last flown 2026-04-05.

    63%

    chance on time

    On time (history)
    50%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 50% of the time (18 flights, Jun 2025 to May 2026).
    • Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
    • Short track record (18 flights), so its score leans on the airline's record at this hour.

    Limited track record · 18 flights

    Find Southwest 4092 fares Opens this date on Aviasales

  9. #9 · Southwest 1691

    4:40 PM → 9:20 PM2h 40m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    61%

    chance on time

    On time (history)
    47%
    Cancelled
    0.0%
    Avg arrival delay
    28 min
    • Arrived on time 47% of the time (15 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 75% on time; Before 9 AM: 87%).
    • 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 (15 flights), so its score leans on the airline's record at this hour.

    Limited track record · 15 flights

    Find Southwest 1691 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)85%

    693 flights · 86% on time as flown · 0.2% cancel

  • Spirit Airlines84%

    199 flights · 87% on time as flown · 1.6% cancel

  • Delta Air Lines83%

    688 flights · 83% on time as flown · 0.4% cancel

  • Southwest Airlines74%

    337 flights · 72% on time as flown · 0.1% cancel

On time by departure time

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

  • Before 9 AM87%

    154 flights · avg delay 9 min

  • 9 AM to noon87%

    837 flights · avg delay 10 min

  • Noon to 3 PM77%

    194 flights · avg delay 13 min

  • 3 to 6 PM75%

    209 flights · avg delay 13 min

  • 6 to 9 PM80%

    527 flights · avg delay 16 min

Best day: Saturday (84%). Worst: Sunday (79%).

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
82
F
84
M
80
A
84
M
81
J
76
J
78
A
82
S
87
O
83
N
80
D
82

What delays this route

  • Airline (crew, maintenance, boarding)49%
  • Late-arriving aircraft41%
  • Air traffic control and airport volume9%
  • Severe weather2%

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 SAT questions

What time of day is best to fly LAX to SAT?
Before 9 AM: 87% of flights arrived on time, against 75% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from LAX to SAT?
SkyWest, with a season-adjusted 85% chance of operating and arriving on time over 693 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 SAT?
June (76% on time); the best was September (87%), 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