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Route on-time record

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

Atlanta (Hartsfield Jackson Atlanta International Airport) to San Diego (San Diego International Airport). 2,461 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 0.7% were cancelled. The most reliable flight number was Delta 725 at 8:05 AM.

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

ATL → SAN

Atlanta to San Diego: 2,461 nonstop flights a year

On time (12 months)

77%

Cancelled

0.7%

avg delay 13 min

Best time to leave

Before 9 AM

86% on time vs 70% after 9 PM

Most reliable airline

Alaska

81% chance on time

Check ATL to SAN fares

Lowest nonstop fare seen in the next two months: $410 (Southwest 296 on 2026-10-30). 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 · Delta 725

    8:05 AM → 9:52 AM4h 39m nonstop

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

    85%

    chance on time

    On time (history)
    86%
    Cancelled
    0.6%
    Avg arrival delay
    8 min
    • Arrived on time 86% of the time (359 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 86% on time; After 9 PM: 70%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
    • Lands inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.

    Strong track record · 359 flights

    Find Delta 725 fares Opens this date on Aviasales

  2. #2 · Alaska 474

    4:56 PM → 7:01 PM5h 05m nonstop

    Local times, typical schedule. Last flown 2026-03-10.

    82%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 82% of the time (165 flights, Jun 2025 to May 2026).
    • Never cancelled in 167 scheduled flights.
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 165 flights

    Find Alaska 474 fares Opens this date on Aviasales

  3. #3 · Delta 843

    2:40 PM → 4:31 PM4h 39m nonstop

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

    81%

    chance on time

    On time (history)
    81%
    Cancelled
    0.3%
    Avg arrival delay
    13 min
    • Arrived on time 81% of the time (301 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 301 flights

    Find Delta 843 fares Opens this date on Aviasales

  4. #4 · Delta 894

    11:05 AM → 12:58 PM4h 38m nonstop

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

    79%

    chance on time

    On time (history)
    80%
    Cancelled
    0.5%
    Avg arrival delay
    10 min
    • Arrived on time 80% of the time (363 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 363 flights

    Find Delta 894 fares Opens this date on Aviasales

  5. #5 · Delta 712

    4:59 PM → 6:51 PM4h 40m nonstop

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

    72%

    chance on time

    On time (history)
    73%
    Cancelled
    0.3%
    Avg arrival delay
    15 min
    • Arrived on time 73% of the time (292 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Strong track record · 292 flights

    Find Delta 712 fares Opens this date on Aviasales

  6. #6 · Delta 924

    9:40 AM → 11:16 AM4h 36m nonstop

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

    72%

    chance on time

    On time (history)
    71%
    Cancelled
    0.0%
    Avg arrival delay
    18 min
    • Arrived on time 71% of the time (217 flights, Jun 2025 to May 2026).
    • Never cancelled in 220 scheduled flights.
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).
    • Lands inside SAN's trouble window: 66% of its 164 ground stops and delay programs started between 6 AM and noon.

    Strong track record · 217 flights

    Find Delta 924 fares Opens this date on Aviasales

  7. #7 · Delta 731

    6:50 PM → 8:36 PM4h 46m nonstop

    Local times, typical schedule. Last flown 2026-05-06.

    72%

    chance on time

    On time (history)
    72%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 72% of the time (149 flights, Jun 2025 to May 2026).
    • Never cancelled in 152 scheduled flights.
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 149 flights

    Find Delta 731 fares Opens this date on Aviasales

  8. #8 · Delta 896

    9:15 PM → 11:09 PM4h 40m nonstop

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

    71%

    chance on time

    On time (history)
    73%
    Cancelled
    2.8%
    Avg arrival delay
    16 min
    • Arrived on time 73% of the time (273 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (After 9 PM: 70% on time; Before 9 AM: 86%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 273 flights

    Find Delta 896 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Alaska Airlines81%

    271 flights · 81% on time as flown · 0.2% cancel

  • Delta Air Lines76%

    2,190 flights · 77% on time as flown · 0.7% cancel

On time by departure time

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

  • Before 9 AM86%

    362 flights · avg delay 8 min

  • 9 AM to noon80%

    391 flights · avg delay 10 min

  • Noon to 3 PM81%

    303 flights · avg delay 11 min

  • 3 to 6 PM76%

    648 flights · avg delay 13 min

  • 6 to 9 PM71%

    536 flights · avg delay 15 min

  • After 9 PM70%

    221 flights · avg delay 18 min

Best day: Tuesday (81%). 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
79
F
82
M
82
A
76
M
69
J
69
J
68
A
77
S
80
O
80
N
82
D
78

What delays this route

  • Airline (crew, maintenance, boarding)45%
  • Air traffic control and airport volume26%
  • Late-arriving aircraft22%
  • Severe weather8%

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

ATL to SAN questions

What time of day is best to fly ATL to SAN?
Before 9 AM: 86% of flights arrived on time, against 70% for departures after 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 ATL to SAN?
Alaska, with a season-adjusted 81% chance of operating and arriving on time over 271 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 ATL to SAN?
July (68% on time); the best was November (82%), 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 ATL

Live status: FAA delays and ground stops