Flight profile · American Airlines
AA1843
Charlotte (CLT) to Boston (BOS) · scheduled 8:25 PM – 10:40 PM
How AA1843 performs
1,069 operations, 2023-07-01 to 2026-06-30.
AA1843 arrived on time 65.0% of the time, against 74.4% for all CLT → BOS flights — this specific departure is 9.4 percentage points worse than the route as a whole. Against American Airlines’s own flights on this route it is 6.6 points worse.
Source: US DOT Bureau of Transportation Statistics · 1,069 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AA1843 | 65.0% | 2.34% | 1 min | 13.4% | 1,069 |
| American Airlines on CLT → BOS | 71.6% | 1.49% | -2 min | 10.5% | 8,373 |
| All CLT → BOS flights | 74.4% | 1.76% | -4 min | 10.0% | 13,929 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does AA1843 run worse on particular days?
Wednesday is historically the most reliable day and Sunday the least, a gap of 17.2 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes AA1843 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| CLT→PDX Charlotte to Portland | 2025-11-27 – 2025-11-27 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route AA1843 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 1,069 records of AA1843 operating CLT → BOS, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.