Flight number record
AA 1731
American Airlines · Charleston to Charlotte
- Route
- CHS → CLT
- Departs
- 08:00
- Flights
- 255
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AA 1731, check with American Airlines.
AA 1731 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 50 minutes. That rests on 255 flights, with a median arrival 14 minutes early.
Set against the rest of the country, AA 1731's record is 14 points better than the US average of 77.3%. That gap is worth roughly 142 fewer late arrivals for every thousand flights.
Key figures
On time
91.5%
Arrivals under 15 minutes late, of 248 completed flights
Avg delay
49 min
Across delayed arrivals only, not all flights
Cancelled
2.75%
National rate is 1.89%
1 hour+ late
2.0%
National rate is 8.3%
These figures cover 255 flights between September 2025 and August 2026. The median arrival is 14 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When AA 1731 flies
AA 1731 flies CHS to CLT without a single fixed slot. Its most common scheduled departure was 08:00, used on 45 of 255 flights, with 05:00 (37 flights) next.
- Departs 08:0045 flights17.6%
- Departs 05:0037 flights14.5%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and AA 1731 runs 8 points better at 91.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
AA 1731 next to CHS to CLT
Every carrier on CHS to CLT combined arrived on time 82.7% of the time across 2,506 flights, so AA 1731 is 9 points ahead of it. American flew 1,731 flights on the same city pair under all its flight numbers, including this one, and those ran 84.8% on time. Across its whole network American Airlines managed 74.7%, which this flight beats by 17 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 1731thin sample | 255 | 91.5% | 49 min | 2.75% | A |
| All American Airlines on CHS–CLT | 1,731 | 84.8% | 109 min | 1.39% | B |
| All carriers on CHS–CLT | 2,506 | 82.7% | 106 min | 1.84% | B |
| American Airlines, whole network | 988,892 | 74.7% | 85 min | 2.14% | C |
Across the year
AA 1731 quarter by quarter
AA 1731 did not run the same all year. Its best quarter was Jan–Mar 2026 at 98.4% on time and its weakest Oct–Dec 2025 at 83.7%, a swing of 15 points on roughly 64 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights93.3%
- Oct–Dec 202592 flights83.7%
- Jan–Mar 202670 flights98.4%
- Apr–Jun 202644 flights97.7%
- Jul–Sep 202619 flights—
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, AA 1731 did best on Saturday at 100.0% on time and worst on Monday at 83.3%. Each day rests on about 36 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AA 1731 runs when it is late
AA 1731 often beats the schedule: 122 of 248 completed flights, 49%, arrived 15 minutes or more early. The 21 late arrivals split 10 under half an hour, 6 between 30 and 60 minutes, and 5 an hour or more.
- 15+ min early122 flights49.2%
- Within 15 min105 flights42.3%
- 15–29 min late10 flights4.0%
- 30–59 min late6 flights2.4%
- 1–2 hours late3 flights1.2%
- 2+ hours late2 flights0.8%
Scale runs 0% to 100%.
Share of 248 completed flights by arrival against schedule.
Only 16 of 248 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for AA 1731
The latest arrival of the period was on 6 October 2025, 2 hours 6 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 October 2025 | 2 hours 6 minutes | Carrier |
| 20 April 2026 | 2 hours 6 minutes | Carrier |
| 23 September 2025 | 1 hour 55 minutes | Late-arriving aircraft |
| 28 August 2026 | 1 hour 54 minutes | Carrier |
| 24 September 2025 | 1 hour 41 minutes | Late-arriving aircraft |
Delay causes
Why AA 1731 runs late
Carrier accounts for 47% of the 1,030 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Carrier
- 36%Late-arriving aircraft
- 17%National Airspace System
36% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,030 reported delay minutes here, that single category outweighs weather by 36 to one. The split is drawn from 1,030 delay minutes reported on AA 1731.
Cancellations run at 2.75%, against 1.89% nationally. That is roughly one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.0% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The same number turns up on three other city pairs in the data, including PHX to SBA (75), CLT to CHS (53) and DFW to CLE (9), but none flew often enough under AA 1731 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CHS to CLT only.
One caution: this is a thin sample. 255 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking AA 1731
For a booking, the cancellation rate is the figure to plan around on AA 1731: 2.75% of its 255 scheduled flights did not operate. A late arrival costs about 50 minutes, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- CHS to CLT, every carrier and departure
- CLT to CHS, the return direction
- Charleston International (CHS) delay statistics
- Charlotte Douglas International (CLT) delay statistics
- American Airlines on-time record
- Every American Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means American Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.