ON TIMEBOARD

SJU → CLT on time

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

On time
84%
arrived < 15 min late
Cancelled
1.6%
1,086 flights
Typical arrival
−15 min
median vs schedule
When late
+107 min
average delay
Flights / day
3
2 airlines

84% of flights from San Juan 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 90% of the time; the 3 p.m. ones 80%. 8% 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 SJU → CLT: when a flight was late, it was under 45 minutes late 50% of the time. About 1 in 17 flights landed an hour or more late, and 1 in 64 three hours or more; 1.6% were cancelled outright.

Share of all 1,086 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines99086%1.6%−17 min5.3%+123 minAmerican Airlines
Frontier Airlines96—————Frontier 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 SJU). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%7 a.m. departures: 90% on time (212 flights)907a8 a.m. departures: 82% on time (153 flights)828a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights (63 flights)11anoon departures: too few flights (47 flights)12p1 p.m. departures: too few flights (73 flights)1p2 p.m. departures: too few flights (64 flights)2p3 p.m. departures: 80% on time (222 flights)803p4 p.m. departures: 81% on time (152 flights)814p5 p.m. departures: too few flights (71 flights)5p
SJU → 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

By airline and hour

DepartsAmerican Airlines
7 a.m.90%
8 a.m.84%
3 p.m.85%
4 p.m.84%

Last flight of the day

On SJU → CLT, each airline's last flight of the day was cancelled 0.6% of the time, against 2.2% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 2.4% of the time (earlier flights: 1.4%). 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 Airlines3:40 p.m.0.6%2.4%2.2%first flight 7:25 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.

By month

Each calendar month pooled over 2023–2026. Best: November (86%). Worst: July (68%).

40%70%100%Jan: 74% on time (342 flights)74JanFeb: 84% on time (324 flights)84FebMar: 78% on time (384 flights)78MarApr: 83% on time (290 flights)83AprMay: 77% on time (287 flights)77MayJun: 74% on time (246 flights)74JunJul: 68% on time (247 flights)68JulAug: 76% on time (212 flights)76AugSep: 84% on time (134 flights)84SepOct: 77% on time (180 flights)77OctNov: 86% on time (256 flights)86NovDec: 81% on time (348 flights)81Dec

By day of week

DayFlightsOn timeCancelled
Monday16780%1.8%
Tuesday13889%0.0%
Wednesday14688%0.0%
Thursday14989%0.7%
Friday16388%0.6%
Saturday16579%4.2%
Sunday15879%3.2%

Why flights were late

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

Airline (crew, maintenance, ops) 47%Late inbound plane 38%Air traffic & airport (NAS) 10%Severe weather 5%

Cancellations: weather 11 · air traffic/airport 4 · airline 2

Month by month

60%80%100%Sep 2023Jan 2024Jan 2025Jan 2026Dec 2023: 76% on time, 0.0% cancelledJan 2024: 78% on time, 0.0% cancelledFeb 2024: 76% on time, 0.0% cancelledMar 2024: 66% on time, 0.0% cancelledDec 2024: 75% on time, 0.0% cancelledJan 2025: 74% on time, 3.6% cancelledFeb 2025: 88% on time, 0.0% cancelledMar 2025: 78% on time, 0.0% cancelledDec 2025: 90% on time, 0.0% cancelledJan 2026: 71% on time, 9.9% cancelledFeb 2026: 90% on time, 1.8% cancelledMar 2026: 88% on time, 0.0% cancelledApr 2026: 83% on time, 0.0% cancelled
Share of flights on time, by month (hover a point for cancellations)
SJU → 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 7833:39 p.m.16387%0.0%−14 minAmerican Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Jan 25, 202640%2
Jan 31, 202640%3
Feb 2, 202640%0
Jan 3, 202640%3
Jul 11, 202630%0

Questions

How often are flights from SJU to CLT on time?

84% of 1,086 scheduled flights from San Juan, PR to Charlotte, NC arrived within 15 minutes of schedule between September 2025 and August 2026. 1.6% were cancelled.

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

Flights scheduled to leave at 7 a.m. were the most reliable (90% on time). The 3 p.m. departures were the least (80%).

What month has the most delays from SJU to CLT?

July (68% on time). The best month is November (86%), over 2023–2026.

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

No, the opposite. Each airline's last SJU–CLT flight of the day was cancelled 0.6% of the time over the past year, against 2.2% 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.