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Route on-time record

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

Charlotte (Charlotte Douglas International Airport) to San Antonio (San Antonio International Airport). 1,372 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.7% were cancelled. The most reliable flight number was American 1977 at 7:05 AM.

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

CLT → SAT

Charlotte to San Antonio: 1,372 nonstop flights a year

On time (12 months)

76%

Cancelled

1.7%

avg delay 18 min

Best time to leave

Before 9 AM

88% on time vs 65% 6 to 9 PM

Most reliable airline

American

75% chance on time

Check CLT to SAT fares

Lowest nonstop fare seen in the next two months: $364 (American 1153 on 2026-11-07). 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 · American 1977

    7:05 AM → 9:20 AM3h 15m nonstop

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

    86%

    chance on time

    On time (history)
    90%
    Cancelled
    3.7%
    Avg arrival delay
    8 min
    • Arrived on time 90% of the time (155 flights, Jun 2025 to May 2026).
    • Cancelled 3.7% of the time (6 of 161).
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 65%).
    • Departs outside CLT's trouble window (2 PM to 8 PM, when 63% of its 48 ground stops and delay programs started).

    Moderate track record · 155 flights

    Find American 1977 fares Opens this date on Aviasales

  2. #2 · American 2487

    7:12 AM → 9:10 AM2h 58m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2742; its record covers all of them.

    85%

    chance on time

    On time (history)
    87%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 87% of the time (54 flights, Jun 2025 to May 2026).
    • Never cancelled in 54 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 65%).
    • Departs outside CLT's trouble window (2 PM to 8 PM, when 63% of its 48 ground stops and delay programs started).

    Limited track record · 54 flights

    Find American 2487 fares Opens this date on Aviasales

  3. #3 · American 2744

    2:45 PM → 4:52 PM3h 07m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 2934; its record covers all of them.

    77%

    chance on time

    On time (history)
    78%
    Cancelled
    1.3%
    Avg arrival delay
    14 min
    • Arrived on time 78% of the time (305 flights, Jun 2025 to May 2026).
    • Departs inside CLT's trouble window: 63% of its 48 ground stops and delay programs started between 2 PM and 8 PM.
    • 56% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 305 flights

    Find American 2744 fares Opens this date on Aviasales

  4. #4 · American 1258

    6:37 PM → 8:47 PM3h 10m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1657; its record covers all of them.

    73%

    chance on time

    On time (history)
    74%
    Cancelled
    1.2%
    Avg arrival delay
    20 min
    • Arrived on time 74% of the time (341 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 65% on time; Before 9 AM: 88%).
    • Departs inside CLT's trouble window: 63% of its 48 ground stops and delay programs started between 2 PM and 8 PM.

    Strong track record · 341 flights

    Find American 1258 fares Opens this date on Aviasales

  5. #5 · American 2496

    3:00 PM → 5:00 PM3h 00m nonstop

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

    71%

    chance on time

    On time (history)
    55%
    Cancelled
    0.0%
    Avg arrival delay
    23 min
    • Arrived on time 55% of the time (11 flights, Jun 2025 to May 2026).
    • Departs inside CLT's trouble window: 63% of its 48 ground stops and delay programs started between 2 PM and 8 PM.
    • 67% 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 American 2496 fares Opens this date on Aviasales

  6. #6 · American 1153

    8:40 PM → 10:55 PM3h 15m nonstop

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

    68%

    chance on time

    On time (history)
    75%
    Cancelled
    3.9%
    Avg arrival delay
    15 min
    • Arrived on time 75% of the time (146 flights, Jun 2025 to May 2026).
    • Cancelled 3.9% of the time (6 of 152).
    • Leaves in this route's least on-time window (6 to 9 PM: 65% on time; Before 9 AM: 88%).
    • Departs outside CLT's trouble window (2 PM to 8 PM, when 63% of its 48 ground stops and delay programs started).

    Moderate track record · 146 flights

    Find American 1153 fares Opens this date on Aviasales

  7. #7 · American 366

    8:54 PM → 10:59 PM3h 05m nonstop

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

    65%

    chance on time

    On time (history)
    67%
    Cancelled
    0.0%
    Avg arrival delay
    21 min
    • Arrived on time 67% of the time (48 flights, Jun 2025 to May 2026).
    • Never cancelled in 48 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 65% on time; Before 9 AM: 88%).
    • Departs outside CLT's trouble window (2 PM to 8 PM, when 63% of its 48 ground stops and delay programs started).

    Limited track record · 48 flights

    Find American 366 fares Opens this date on Aviasales

  8. #8 · American 2441

    8:19 PM → 10:17 PM2h 58m nonstop

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

    56%

    chance on time

    On time (history)
    53%
    Cancelled
    1.9%
    Avg arrival delay
    40 min
    • Arrived on time 53% of the time (154 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (6 to 9 PM: 65% on time; Before 9 AM: 88%).
    • Departs outside CLT's trouble window (2 PM to 8 PM, when 63% of its 48 ground stops and delay programs started).

    Moderate track record · 154 flights

    Find American 2441 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines75%

    1,372 flights · 76% on time as flown · 1.7% cancel

On time by departure time

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

  • Before 9 AM88%

    286 flights · avg delay 9 min

  • 9 AM to noon84%

    139 flights · avg delay 8 min

  • Noon to 3 PM78%

    217 flights · avg delay 16 min

  • 3 to 6 PM79%

    104 flights · avg delay 12 min

  • 6 to 9 PM65%

    557 flights · avg delay 27 min

  • After 9 PM86%

    69 flights · avg delay 7 min

Best day: Wednesday (80%). Worst: Sunday (69%).

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
73
F
82
M
74
A
74
M
61
J
62
J
57
A
69
S
78
O
83
N
82
D
77

What delays this route

  • Late-arriving aircraft51%
  • Airline (crew, maintenance, boarding)30%
  • Air traffic control and airport volume11%
  • Severe weather9%

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

CLT to SAT questions

What time of day is best to fly CLT to SAT?
Before 9 AM: 88% of flights arrived on time, against 65% 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 CLT to SAT?
American, with a season-adjusted 75% chance of operating and arriving on time over 1,372 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 CLT to SAT?
July (57% on time); the best was October (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 CLT

Live status: FAA delays and ground stops