Flight number record
AA 2984
American Airlines · Chicago to Miami
- Route
- ORD → MIA
- Departs
- 05:00
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AA 2984, check with American Airlines.
AA 2984 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 16 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 364 flights, with a median arrival 9 minutes early.
Set against the rest of the country, AA 2984's record is 16 points better than the US average of 77.3%. That gap is worth roughly 163 fewer late arrivals for every thousand flights.
Key figures
On time
93.6%
Arrivals under 15 minutes late, of 360 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
1.10%
National rate is 1.89%
1 hour+ late
1.4%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. The median arrival is 9 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.
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Schedule
When AA 2984 flies
AA 2984 is scheduled to leave Chicago (ORD) at 05:00 local time and reach Miami (MIA) at 09:13. That slot held for 364 of the 364 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.
- Departs 05:00364 flights100.0%
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 05:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and AA 2984 runs 4 points better at 93.6%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
AA 2984 next to ORD to MIA
Every carrier on ORD to MIA combined arrived on time 73.3% of the time across 4,465 flights, so AA 2984 is 20 points ahead of it. American flew 3,044 flights on the same city pair under all its flight numbers, including this one, and those ran 74.6% on time. Across its whole network American Airlines managed 74.7%, which this flight beats by 19 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 2984thin sample | 364 | 93.6% | 77 min | 1.10% | A |
| All American Airlines on ORD–MIA | 3,044 | 74.6% | 76 min | 1.77% | C |
| All carriers on ORD–MIA | 4,465 | 73.3% | 74 min | 1.90% | C |
| American Airlines, whole network | 988,892 | 74.7% | 85 min | 2.14% | C |
Across the year
AA 2984 quarter by quarter
Quarter by quarter AA 2984 held fairly steady: 92.1% in Oct–Dec 2025, 93.3% in Jan–Mar 2026, 96.7% in Apr–Jun 2026 and 88.7% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202529 flights—
- Oct–Dec 202592 flights92.1%
- Jan–Mar 202690 flights93.3%
- Apr–Jun 202691 flights96.7%
- Jul–Sep 202662 flights88.7%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, AA 2984 ranged from 88.5% on Saturday to 96.1% on Tuesday. With about 52 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late AA 2984 runs when it is late
AA 2984 often beats the schedule: 114 of 360 completed flights, 32%, arrived 15 minutes or more early. The 23 late arrivals split 11 under half an hour, 7 between 30 and 60 minutes, and 5 an hour or more.
- 15+ min early114 flights31.7%
- Within 15 min223 flights61.9%
- 15–29 min late11 flights3.1%
- 30–59 min late7 flights1.9%
- 1–2 hours late3 flights0.8%
- 2+ hours late2 flights0.6%
Scale runs 0% to 100%.
Share of 360 completed flights by arrival against schedule.
A late pushback is often recovered here: of 29 departures that left 15 minutes late or more, 14 still arrived on time. 8 flights left on time and still arrived late.
The worst days
Worst days for AA 2984
The latest arrival of the period was on 4 August 2026, 14 hours 8 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across August, June, December and March, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 4 August 2026 | 14 hours 8 minutes | Carrier |
| 27 June 2026 | 2 hours 21 minutes | Late-arriving aircraft |
| 7 December 2025 | 1 hour 18 minutes | Extreme weather |
| 12 March 2026 | 1 hour 18 minutes | Carrier |
| 16 March 2026 | 1 hour 8 minutes | National Airspace System |
Delay causes
Why AA 2984 runs late
Carrier accounts for 74% of the 1,763 delay minutes carriers reported here, and the remaining four split what is left.
- 74%Carrier
- 14%National Airspace System
- 8%Late-arriving aircraft
- 4%Extreme weather
The largest share of delay minutes, 74%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,313 of the 1,763 delay minutes reported here. The split is drawn from 1,763 delay minutes reported on AA 2984.
Cancellations sit at 1.10% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 1.4% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 1,197 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.
Every one of the 364 flights under AA 2984 in the data flew ORD to MIA. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 364 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 2984
For a booking, AA 2984 has one of the better records a US domestic flight can show: 93.6% on time and 1.10% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- ORD to MIA, every carrier and departure
- MIA to ORD, the return direction
- Chicago O'Hare International (ORD) 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
- Worst months to fly in the US, ranked by the data
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.