ON TIMEBOARD

SAT → CLT on time

San Antonio (San Antonio, TX) to Charlotte Douglas (Charlotte, NC). Every scheduled flight, September 2025 to August 2026.

On time
86%
arrived < 15 min late
Cancelled
1.8%
1,360 flights
Typical arrival
−11 min
median vs schedule
When late
+135 min
average delay
Flights / day
4
1 airline

86% of flights from San Antonio to Charlotte arrived on time over the past 12 months. That is better than the typical U.S. route. The 7 a.m. departures ran on time 92% of the time; the 5 p.m. ones 71%. 7% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for SAT → CLT: when a flight was late, it was under 45 minutes late 47% of the time. About 1 in 19 flights landed an hour or more late, and 1 in 50 three hours or more; 1.8% were cancelled outright.

Share of all 1,360 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines1,36086%1.8%−11 min5.4%+135 minAmerican Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at SAT). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%6 a.m. departures: 88% on time (233 flights)886a7 a.m. departures: 92% on time (140 flights)927a8 a.m. departures: 87% on time (307 flights)878a9 a.m. departures: too few flights (76 flights)9a10 a.m. departures: 91% on time (152 flights)9110a11 a.m. departures: too few flights (60 flights)11anoon departures: too few flights (67 flights)12p1 p.m. departures: too few flights (23 flights)1p2 p.m. departures: too few flights (32 flights)2p3 p.m. departures: too few flights (17 flights)3p4 p.m. departures: too few flights (20 flights)4p5 p.m. departures: 71% on time (229 flights)715p
SAT → CLT, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On SAT → CLT, each airline's last flight of the day was cancelled 2.5% of the time, against 1.6% for its earlier flights (1.5× as often). It arrived 3+ hours late 0.8% of the time (earlier flights: 2.4%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
American Airlines5:47 p.m.2.5%0.8%1.6%first flight 6:01 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in CLT tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: October (90%). Worst: June (75%).

40%70%100%Jan: 82% on time (346 flights)82JanFeb: 88% on time (323 flights)88FebMar: 79% on time (363 flights)79MarApr: 83% on time (350 flights)83AprMay: 77% on time (368 flights)77MayJun: 75% on time (351 flights)75JunJul: 77% on time (360 flights)77JulAug: 85% on time (331 flights)85AugSep: 88% on time (356 flights)88SepOct: 90% on time (364 flights)90OctNov: 86% on time (323 flights)86NovDec: 86% on time (342 flights)86Dec

By day of week

DayFlightsOn timeCancelled
Monday20281%2.0%
Tuesday18491%1.6%
Wednesday18690%0.5%
Thursday19889%1.0%
Friday19986%0.5%
Saturday18884%3.2%
Sunday20381%3.9%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Airline (crew, maintenance, ops) 54%Late inbound plane 34%Severe weather 7%Air traffic & airport (NAS) 5%

Cancellations: weather 22 · airline 2 · air traffic/airport 1

Month by month

50%75%100%Sep 2023Jan 2024Jan 2025Jan 2026Sep 2023: 91% on time, 0.0% cancelledOct 2023: 92% on time, 0.0% cancelledNov 2023: 81% on time, 0.0% cancelledDec 2023: 87% on time, 0.0% cancelledJan 2024: 87% on time, 0.0% cancelledFeb 2024: 89% on time, 0.0% cancelledMar 2024: 78% on time, 0.0% cancelledApr 2024: 78% on time, 0.0% cancelledMay 2024: 65% on time, 2.4% cancelledJun 2024: 68% on time, 1.7% cancelledJul 2024: 68% on time, 4.2% cancelledAug 2024: 82% on time, 0.8% cancelledSep 2024: 84% on time, 0.8% cancelledOct 2024: 87% on time, 0.0% cancelledNov 2024: 89% on time, 0.0% cancelledDec 2024: 81% on time, 0.0% cancelledJan 2025: 83% on time, 5.4% cancelledFeb 2025: 90% on time, 0.0% cancelledMar 2025: 77% on time, 0.8% cancelledApr 2025: 86% on time, 0.0% cancelledMay 2025: 81% on time, 1.6% cancelledJun 2025: 77% on time, 0.9% cancelledJul 2025: 78% on time, 1.7% cancelledAug 2025: 84% on time, 0.9% cancelledSep 2025: 90% on time, 0.0% cancelledOct 2025: 91% on time, 0.0% cancelledNov 2025: 90% on time, 0.0% cancelledDec 2025: 92% on time, 0.9% cancelledJan 2026: 75% on time, 12.7% cancelledFeb 2026: 85% on time, 2.9% cancelledMar 2026: 81% on time, 1.7% cancelledApr 2026: 86% on time, 0.0% cancelledMay 2026: 87% on time, 0.0% cancelledJun 2026: 80% on time, 1.7% cancelledJul 2026: 85% on time, 0.0% cancelled
Share of flights on time, by month (hover a point for cancellations)
SAT → CLT, monthly on-time and cancellation rate.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
AA 11196:01 a.m.17890%0.0%−13 minAmerican Airlines
AA 32978:00 a.m.20988%0.5%−12 minAmerican Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Jan 25, 202640%2
Jan 26, 202640%4
Mar 16, 202640%0
Feb 1, 202640%3
Jan 27, 202640%3

Questions

How often are flights from SAT to CLT on time?

86% of 1,360 scheduled flights from San Antonio, TX to Charlotte, NC arrived within 15 minutes of schedule between September 2025 and August 2026. 1.8% were cancelled.

What is the best time of day to fly SAT to CLT?

Flights scheduled to leave at 7 a.m. were the most reliable (92% on time). The 5 p.m. departures were the least (71%).

What month has the most delays from SAT to CLT?

June (75% on time). The best month is October (90%), over 2023–2026.

Is the last flight of the day from SAT to CLT more likely to be cancelled?

Yes. Each airline's last SAT–CLT flight of the day was cancelled 2.5% of the time over the past year, against 1.6% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.