Flight number record

AA 1904

American Airlines · Charlotte to Raleigh

Route: CLT → RDU
Departs: 18:30
Flights: 274
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AA 1904, check with American Airlines.

AA 1904 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 274 flights, with a median arrival 1 minute early.

The national on-time rate over the same period is 77.6%, so AA 1904 runs 8 points behind the country as a whole. Across a thousand flights that is about 83 extra late arrivals.

On time

69.3%

Arrivals under 15 minutes late, of 267 completed flights

Avg delay

65 min

Across delayed arrivals only, not all flights

Cancelled

2.55%

National rate is 1.81%

1 hour+ late

10.9%

National rate is 8.1%

These figures cover 274 flights between July 2025 and June 2026. Beyond the headline rate, 10.9% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When AA 1904 flies

AA 1904 flies CLT to RDU without a single fixed slot. Its most common scheduled departure was 18:30, used on 44 of 274 flights, with 17:45 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 18:3044 flights16.1%
Departs 17:4532 flights11.7%

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 18:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and AA 1904 runs level with that at 69.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

AA 1904 next to CLT to RDU

Every carrier on CLT to RDU combined arrived on time 77.4% of the time across 3,070 flights, so AA 1904 is 8 points behind it. American flew 3,052 flights on the same city pair under all its flight numbers, including this one, and those ran 77.4% on time. Across its whole network American Airlines managed 74.4%, which this flight trails by 5 points.

AA 1904 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AA 1904thin sample	274	69.3%	65 min	2.55%	C
All American Airlines on CLT–RDU	3,052	77.4%	66 min	1.61%	B
All carriers on CLT–RDU	3,070	77.4%	66 min	1.66%	B
American Airlines, whole network	986,297	74.4%	85 min	2.29%	C

Across the year

AA 1904 quarter by quarter

AA 1904 did not run the same all year. Its best quarter was Jan–Mar 2026 at 75.6% on time and its weakest Jul–Sep 2025 at 59.6%, a swing of 16 points on roughly 91 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 202592 flights59.6%
Oct–Dec 202590 flights74.4%
Jan–Mar 202686 flights75.6%
Apr–Jun 20266 flights—

Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, AA 1904 did best on Wednesday at 81.6% on time and worst on Monday at 62.5%. Each day rests on about 39 flights, so a gap of 19 points is worth noticing but could still narrow in another year.

Delay causes

Why AA 1904 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 62% of the 5,327 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
62%
Carrier
31%
National Airspace System
5%
Extreme weather
2%

62% 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 5,327 reported delay minutes here, that single category outweighs weather by 29 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 5,327 delay minutes reported on AA 1904.

Cancellations run at 2.55%, 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.9% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The same number turns up on five other city pairs in the data, including RDU to CLT (213), BOS to CLT (44) and CLT to BOS (44), but none flew often enough under AA 1904 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CLT to RDU only.

One caution: this is a thin sample. 274 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 1904

For a booking, the cancellation rate is the figure to plan around on AA 1904: 2.55% of its 274 scheduled flights did not operate. A late arrival costs about an hour, 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