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Route on-time record

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

San Diego (San Diego International Airport) to Fresno (Fresno Yosemite International Airport). 1,721 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 1.7% were cancelled. The most reliable flight number was Southwest 3014 at 8:40 AM.

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SAN → FAT

San Diego to Fresno: 1,721 nonstop flights a year

On time (12 months)

79%

Cancelled

1.7%

avg delay 11 min

Best time to leave

Before 9 AM

88% on time vs 70% 6 to 9 PM

Most reliable airline

Southwest

79% chance on time

Check SAN to FAT 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 · Southwest 3014

    8:40 AM → 10:05 AM1h 25m nonstop

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

    93%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (47 flights, Jun 2025 to May 2026).
    • Never cancelled in 47 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 70%).
    • Departs inside SAN's trouble window: 66% of its 166 ground stops and delay programs started between 6 AM and noon.

    Limited track record · 47 flights

    Find Southwest 3014 fares Opens this date on Aviasales

  2. #2 · SkyWest 3489 · sold as United Express, Delta Connection, American Eagle or Alaska

    9:50 AM → 11:17 AM1h 27m nonstop

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

    84%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 90% of the time (21 flights, Jun 2025 to May 2026).
    • Departs inside SAN's trouble window: 66% of its 166 ground stops and delay programs started between 6 AM and noon.

    Limited track record · 21 flights

    Find 9:50 AM flight fares Opens this date on Aviasales

  3. #3 · SkyWest 3491 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:55 AM → 9:26 AM1h 31m nonstop

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

    81%

    chance on time

    On time (history)
    81%
    Cancelled
    1.1%
    Avg arrival delay
    10 min
    • Arrived on time 81% of the time (271 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 70%).
    • Departs inside SAN's trouble window: 66% of its 166 ground stops and delay programs started between 6 AM and noon.

    Strong track record · 271 flights

    Find 7:55 AM flight fares Opens this date on Aviasales

  4. #4 · SkyWest 3431 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:37 PM → 8:02 PM1h 25m nonstop

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

    81%

    chance on time

    On time (history)
    88%
    Cancelled
    5.6%
    Avg arrival delay
    10 min
    • Arrived on time 88% of the time (17 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 70% on time; Before 9 AM: 88%).
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 166 ground stops and delay programs started).
    • 90% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 17 flights

    Find 6:37 PM flight fares Opens this date on Aviasales

  5. #5 · SkyWest 3472 · sold as United Express, Delta Connection, American Eagle or Alaska

    9:55 PM → 11:25 PM1h 27m nonstop

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

    73%

    chance on time

    On time (history)
    75%
    Cancelled
    3.4%
    Avg arrival delay
    11 min
    • Arrived on time 75% of the time (313 flights, Jun 2025 to May 2026).
    • Cancelled 3.4% of the time (11 of 325).
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 166 ground stops and delay programs started).

    Strong track record · 313 flights

    Find 9:55 PM flight fares Opens this date on Aviasales

  6. #6 · SkyWest 3018 · sold as United Express, Delta Connection, American Eagle or Alaska

    1:37 PM → 3:04 PM1h 27m nonstop

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

    73%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 67% of the time (30 flights, Jun 2025 to May 2026).
    • Never cancelled in 30 scheduled flights.
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 166 ground stops and delay programs started).

    Limited track record · 30 flights

    Find 1:37 PM flight fares Opens this date on Aviasales

  7. #7 · SkyWest 3388 · sold as United Express, Delta Connection, American Eagle or Alaska

    12:56 PM → 2:26 PM1h 30m nonstop

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

    72%

    chance on time

    On time (history)
    72%
    Cancelled
    0.9%
    Avg arrival delay
    15 min
    • Arrived on time 72% of the time (233 flights, Jun 2025 to May 2026).
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 166 ground stops and delay programs started).
    • 54% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 233 flights

    Find 12:56 PM flight fares Opens this date on Aviasales

  8. #8 · Southwest 442

    8:55 PM → 10:10 PM1h 20m nonstop

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

    56%

    chance on time

    On time (history)
    46%
    Cancelled
    0.0%
    Avg arrival delay
    28 min
    • Arrived on time 46% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 70% on time; Before 9 AM: 88%).
    • Departs outside SAN's trouble window (6 AM to noon, when 66% of its 166 ground stops and delay programs started).

    Limited track record · 54 flights

    Find Southwest 442 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Southwest Airlines79%

    456 flights · 81% on time as flown · 1.4% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)77%

    1,265 flights · 78% on time as flown · 1.9% cancel

On time by departure time

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

  • Before 9 AM88%

    400 flights · avg delay 8 min

  • 9 AM to noon84%

    233 flights · avg delay 8 min

  • Noon to 3 PM73%

    214 flights · avg delay 12 min

  • 3 to 6 PM80%

    294 flights · avg delay 12 min

  • 6 to 9 PM70%

    200 flights · avg delay 16 min

  • After 9 PM73%

    380 flights · avg delay 11 min

Best day: Tuesday (85%). Worst: Sunday (73%).

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
83
M
79
A
75
M
79
J
75
J
74
A
76
S
83
O
76
N
76
D
70

What delays this route

  • Late-arriving aircraft58%
  • Air traffic control and airport volume18%
  • 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 FAT…

SAN to FAT questions

What time of day is best to fly SAN to FAT?
Before 9 AM: 88% of flights arrived on time, against 70% for departures 6 to 9 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 SAN to FAT?
Southwest, with a season-adjusted 79% chance of operating and arriving on time over 456 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 FAT?
December (70% on time); the best was February (83%), 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 SAN

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Live status: FAA delays and ground stops