Carrier route record
AABOS→CLT
American Airlines · Boston to Charlotte
- Flights
- 2,728
- Period
- September 2025 to August 2026
- Share of route
- 68%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.
American on BOS to CLT lands a B, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 2,728 flights, with a median arrival 14 minutes early.
Set against the rest of the country, American's BOS to CLT record is 6 points better than the US average of 77.3%. That gap is worth roughly 60 fewer late arrivals for every thousand flights.
Key figures
On time
83.3%
Arrivals under 15 minutes late, of 2,665 completed flights
Avg delay
88 min
Across delayed arrivals only, not all flights
Cancelled
2.20%
National rate is 1.89%
Whole route
82.0%
Every carrier on BOS to CLT, 4,009 flights
These figures cover 2,728 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
American against every carrier on BOS to CLT
American flew 2,728 of the 4,009 flights on BOS to CLT, most of the route. Its 83.3% on time is about level with the route as a whole at 82.0%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Envoy at 100.0% to Spirit at 66.7%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Airthin sample | 5 | 100.0% | — | 20.00% | A− |
| American Airlines (this page) | 2,728 | 83.3% | 88 min | 2.20% | B |
| Republic Airways | 1,214 | 79.7% | 68 min | 3.54% | B− |
| Spirit Airlinesthin sample | 62 | 66.7% | 88 min | 3.23% | C− |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 20 points, against half a point between the best and worst carrier.
- 5am–8am620 flights93.9%
- 8am–11am573 flights85.2%
- 11am–2pm578 flights84.4%
- 2pm–5pm429 flights74.2%
- 5pm–8pm528 flights75.0%
- 8pm–5am—
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 93.9% of the time, against 74.2% for the afternoon window. That is 20 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 620 flights scheduled in it.
Across the year
American on BOS to CLT through the year
April is the best month on the calendar at 92.3% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. July was the busiest month here, with 244 flights.
Across the week, Wednesday is the strongest day at 86.5% on time and Sunday the weakest at 80.6%, a spread of 6 points.
Arrival by arrival
How late American on BOS to CLT runs when it is late
American on BOS to CLT often beats the schedule: 1,304 of 2,665 completed flights, 49%, arrived 15 minutes or more early. The 444 late arrivals split 134 under half an hour, 127 between 30 and 60 minutes, and 183 an hour or more.
- 15+ min early1,304 flights48.9%
- Within 15 min917 flights34.4%
- 15–29 min late134 flights5.0%
- 30–59 min late127 flights4.8%
- 1–2 hours late90 flights3.4%
- 2+ hours late93 flights3.5%
Scale runs 0% to 100%.
Share of 2,665 completed flights by arrival against schedule.
124 of 476 late departures made up the time and arrived on time, 26% of them. 92 flights left on time and still arrived late.
The worst days
Worst days for American on BOS to CLT
The latest arrival of the period was on 9 January 2026, 24 hours 51 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 |
|---|---|---|
| 9 January 2026 | 24 hours 51 minutes | Carrier |
| 1 August 2026 | 13 hours 34 minutes | Late-arriving aircraft |
| 16 June 2026 | 11 hours 33 minutes | Late-arriving aircraft |
| 7 May 2026 | 10 hours 13 minutes | Carrier |
| 1 July 2026 | 10 hours 3 minutes | Carrier |
Delay causes
Why American runs late on this route
Late-arriving aircraft accounts for 51% of the 39,000 delay minutes carriers reported here, and the remaining four split what is left.
- 51%Late-arriving aircraft
- 29%Carrier
- 14%National Airspace System
- 5%Extreme weather
- 0%Security
51% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 39,000 reported delay minutes here, that single category outweighs weather by 10 to one. The split is drawn from 38,949 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 93.9% on time here.
Cancellations sit at 2.20% against a national 1.89%, which is ordinary. Diversions add another 0.11%.
Connections and stage length
What a delay here costs
6.9% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
The 728 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg is a different operation and performs like one: it runs 74.1% on time across 2,726 flights, 9 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 9 points of difference.
The sample behind these figures is 2,728 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking American on BOS to CLT
Put together: the calendar is the biggest lever here, not the carrier or the hour. April runs 92.3% on time and September 74.6%, a swing of 18 points. If the dates move at all, move them out of September before you think about anything else. 2,665 completed flights over 12 months sit behind that.
Related
Where to go next
- BOS to CLT, every carrier
- American on CLT to BOS, the return leg
- Republic Airways on BOS to CLT79.7%
- American Airlines network-wide record
- Boston Logan International (BOS) delay statistics
- Charlotte Douglas International (CLT) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.