Flight number record

AA 1731

American Airlines · Charleston to Charlotte

Route: CHS → CLT
Departs: 08:00
Flights: 261
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 50 minutes. That rests on 261 flights, with a median arrival 14 minutes early.

Set against the rest of the country, AA 1731's record is 13 points better than the US average of 77.6%. That gap is worth roughly 133 fewer late arrivals for every thousand flights.

On time

90.9%

Arrivals under 15 minutes late, of 254 completed flights

Avg delay

50 min

Across delayed arrivals only, not all flights

Cancelled

2.68%

National rate is 1.81%

1 hour+ late

2.0%

National rate is 8.1%

These figures cover 261 flights between July 2025 and June 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.

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 261 flights, with 05:00 (37 flights) and 10:32 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:0045 flights17.2%
Departs 05:0037 flights14.2%
Departs 10:3233 flights12.6%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

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 84.1%, and AA 1731 runs 7 points better at 90.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

AA 1731 next to CHS to CLT

Every carrier on CHS to CLT combined arrived on time 83.8% of the time across 2,534 flights, so AA 1731 is 7 points ahead of it. American flew 1,790 flights on the same city pair under all its flight numbers, including this one, and those ran 84.0% on time. Across its whole network American Airlines managed 74.4%, which this flight beats by 17 points.

AA 1731 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AA 1731thin sample	261	90.9%	50 min	2.68%	A
All American Airlines on CHS–CLT	1,790	84.0%	113 min	1.45%	B
All carriers on CHS–CLT	2,534	83.8%	109 min	1.78%	B
American Airlines, whole network	986,297	74.4%	85 min	2.29%	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 65 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 202555 flights88.9%
Oct–Dec 202592 flights83.7%
Jan–Mar 202670 flights98.4%
Apr–Jun 202644 flights97.7%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, AA 1731 did best on Thursday at 97.3% on time and worst on Monday at 80.0%. Each day rests on about 37 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why AA 1731 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 50% of the 1,160 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
50%
Carrier
35%
National Airspace System
16%

50% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 1,160 reported delay minutes here, that single category outweighs weather by 50 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 1,160 delay minutes reported on AA 1731.

Cancellations run at 2.68%, against 1.81% nationally. That is about 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 8.1% 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 (76), CLT to CHS (60) 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. 261 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: 2.68% of its 261 scheduled flights did not operate. A late arrival costs about 50 minutes, but a cancellation costs the day, so leave a later option open.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures