Flight number record
AA 1183
American Airlines · Baltimore to Miami
- Route
- BWI → MIA
- Departs
- 06:00
- Flights
- 340
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AA 1183, check with American Airlines.
AA 1183 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 340 flights, with a median arrival 13 minutes early.
Set against the rest of the country, AA 1183's record is 7 points better than the US average of 77.3%. That gap is worth roughly 74 fewer late arrivals for every thousand flights.
Key figures
On time
84.7%
Arrivals under 15 minutes late, of 333 completed flights
Avg delay
118 min
Across delayed arrivals only, not all flights
Cancelled
1.18%
National rate is 1.89%
1 hour+ late
5.7%
National rate is 8.3%
These figures cover 340 flights between September 2025 and August 2026. The median arrival is 13 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.
Schedule
When AA 1183 flies
AA 1183 flies BWI to MIA without a single fixed slot. Its most common scheduled departure was 06:00, used on 194 of 340 flights, with 19:22 (54 flights) next.
- Departs 06:00194 flights57.1%
- Departs 19:2254 flights15.9%
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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and AA 1183 runs 5 points worse at 84.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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.
Against the route
AA 1183 next to BWI to MIA
Every carrier on BWI to MIA combined arrived on time 75.3% of the time across 2,294 flights, so AA 1183 is 9 points ahead of it. American flew 699 flights on the same city pair under all its flight numbers, including this one, and those ran 80.6% on time. Across its whole network American Airlines managed 74.7%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 1183thin sample | 340 | 84.7% | 118 min | 1.18% | B |
| All American Airlines on BWI–MIA | 699 | 80.6% | 117 min | 2.29% | B |
| All carriers on BWI–MIA | 2,294 | 75.3% | 73 min | 2.44% | B |
| American Airlines, whole network | 988,892 | 74.7% | 85 min | 2.14% | C |
Across the year
AA 1183 quarter by quarter
AA 1183 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jan–Mar 2026 at 66.7%, a swing of 33 points on roughly 68 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 flights100.0%
- Oct–Dec 202578 flights85.7%
- Jan–Mar 202679 flights66.7%
- Apr–Jun 202691 flights94.5%
- Jul–Sep 202662 flights83.3%
Scale runs 60% to 100%.
By weekday, AA 1183 did best on Saturday at 93.8% on time and worst on Friday at 74.5%. Each day rests on about 49 flights, so a gap of 19 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AA 1183 runs when it is late
AA 1183 often beats the schedule: 155 of 333 completed flights, 47%, arrived 15 minutes or more early. The 51 late arrivals split 16 under half an hour, 16 between 30 and 60 minutes, and 19 an hour or more.
- 15+ min early155 flights46.5%
- Within 15 min127 flights38.1%
- 15–29 min late16 flights4.8%
- 30–59 min late16 flights4.8%
- 1–2 hours late8 flights2.4%
- 2+ hours late11 flights3.3%
Scale runs 0% to 100%.
Share of 333 completed flights by arrival against schedule.
11 of 49 late departures made up the time and arrived on time, 22% of them. 13 flights left on time and still arrived late.
The worst days
Worst days for AA 1183
The latest arrival of the period was on 26 January 2026, 16 hours 50 minutes behind schedule; most of its delay minutes were filed as extreme weather. Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 January 2026 | 16 hours 50 minutes | Extreme weather |
| 24 August 2026 | 13 hours 29 minutes | Carrier |
| 15 February 2026 | 13 hours 1 minute | Carrier |
| 22 August 2026 | 4 hours 44 minutes | Late-arriving aircraft |
| 26 August 2026 | 4 hours 23 minutes | Late-arriving aircraft |
Delay causes
Why AA 1183 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 6,029 reported delay minutes.
- 39%Carrier
- 35%Late-arriving aircraft
- 16%Extreme weather
- 10%National Airspace System
Extreme weather accounts for 16% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.7 times the usual weather exposure. The split is drawn from 6,029 delay minutes reported on AA 1183.
Cancellations sit at 1.18% against a national 1.89%, which is ordinary. Diversions add another 0.88%.
Connections and routes
What a delay on this flight costs
5.7% 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 close to two hours, which a normal layover absorbs.
The 946 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 same number turns up on three other city pairs in the data, including MIA to BWI (54), PHX to SMF (19) and SAV to DFW (1), but none flew often enough under AA 1183 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BWI to MIA only.
One caution: this is a thin sample. 340 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 1183
For a booking, read AA 1183 as 84.7% on time with 1.18% cancelled over 340 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- BWI to MIA, every carrier and departure
- MIA to BWI, the return direction
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Miami International (MIA) 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.