Flight number record

AA 1183

American Airlines · Baltimore to Miami

Route: BWI → MIA
Departs: 06:00
Flights: 340
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AA 1183, check with American Airlines.

AA 1183 lands a B, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 340 flights, with a median arrival 12 minutes early.

Set against the rest of the country, AA 1183's record is 6 points better than the US average of 77.6%. That gap is worth roughly 56 fewer late arrivals for every thousand flights.

On time

83.2%

Arrivals under 15 minutes late, of 333 completed flights

Avg delay

119 min

Across delayed arrivals only, not all flights

Cancelled

1.47%

National rate is 1.81%

1 hour+ late

5.1%

National rate is 8.1%

These figures cover 340 flights between July 2025 and June 2026. The median arrival is 12 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 1183 flies

AA 1183 flies BWI to MIA without a single fixed slot. Its most common scheduled departure was 06:00, used on 159 of 340 flights, with 06:01 (59 flights) and 19:22 (54 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00159 flights46.8%
Departs 06:0159 flights17.4%
Departs 19:2254 flights15.9%

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 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 6 points worse at 83.2%. 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 1183 next to BWI to MIA

Every carrier on BWI to MIA combined arrived on time 74.7% of the time across 2,286 flights, so AA 1183 is 9 points ahead of it. American flew 689 flights on the same city pair under all its flight numbers, including this one, and those ran 80.4% on time. Across its whole network American Airlines managed 74.4%, which this flight beats by 9 points.

AA 1183 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AA 1183thin sample	340	83.2%	119 min	1.47%	B
All American Airlines on BWI–MIA	689	80.4%	101 min	2.32%	B
All carriers on BWI–MIA	2,286	74.7%	73 min	2.10%	C
American Airlines, whole network	986,297	74.4%	85 min	2.29%	C

Across the year

AA 1183 quarter by quarter

AA 1183 did not run the same all year. Its best quarter was Apr–Jun 2026 at 94.5% on time and its weakest Jan–Mar 2026 at 66.7%, a swing of 28 points on roughly 85 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 flights83.3%
Oct–Dec 202578 flights85.7%
Jan–Mar 202679 flights66.7%
Apr–Jun 202691 flights94.5%

Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, AA 1183 did best on Saturday at 91.8% on time and worst on Friday at 74.5%. Each day rests on about 49 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why AA 1183 runs late

One category carries most of the weight here. Carrier accounts for 55% of the 6,680 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.

Carrier
55%
Late-arriving aircraft
20%
Extreme weather
14%
National Airspace System
11%

Extreme weather accounts for 14% 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 2.3 times the usual weather exposure. The split is drawn from 6,680 delay minutes reported on AA 1183.

Cancellations sit at 1.47% against a national 1.81%, which is ordinary. Diversions add another 0.59%.

Connections and routes

What a delay on this flight costs

5.1% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

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 83.2% on time with 1.47% cancelled over 340 flights. Those are rates from the past twelve months, not a forecast for any particular day.

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