Flight number record
AA 688
American Airlines · New York to Miami
- Route
- JFK → MIA
- Departs
- 11:00
- Flights
- 317
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AA 688, check with American Airlines.
AA 688 sits in the middle of the pack with a B−. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land close to two hours behind schedule. That rests on 317 flights, with a median arrival 8 minutes early.
Key figures
On time
75.2%
Arrivals under 15 minutes late, of 307 completed flights
Avg delay
106 min
Across delayed arrivals only, not all flights
Cancelled
3.15%
National rate is 1.89%
1 hour+ late
12.4%
National rate is 8.3%
These figures cover 317 flights between September 2025 and August 2026. Beyond the headline rate, 12.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When AA 688 flies
AA 688 flies JFK to MIA without a single fixed slot. Its most common scheduled departure was 11:00, used on 60 of 317 flights, with 17:20 (42 flights) and 11:31 (37 flights) next.
- Departs 11:0060 flights18.9%
- Departs 17:2042 flights13.2%
- Departs 11:3137 flights11.7%
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 11:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and AA 688 runs 3 points worse at 75.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
AA 688 next to JFK to MIA
Every carrier on JFK to MIA combined arrived on time 76.8% of the time across 4,526 flights, so AA 688 is 2 points behind it. American flew 2,693 flights on the same city pair under all its flight numbers, including this one, and those ran 76.9% on time. Across its whole network American Airlines managed 74.7%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 688thin sample | 317 | 75.2% | 106 min | 3.15% | B− |
| All American Airlines on JFK–MIA | 2,693 | 76.9% | 113 min | 2.97% | B |
| All carriers on JFK–MIA | 4,526 | 76.8% | 97 min | 3.12% | B− |
| American Airlines, whole network | 988,892 | 74.7% | 85 min | 2.14% | C |
Across the year
AA 688 quarter by quarter
AA 688 did not run the same all year. Its best quarter was Oct–Dec 2025 at 82.6% on time and its weakest Jul–Sep 2026 at 65.6%, a swing of 17 points on roughly 79 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 202528 flights—
- Oct–Dec 202590 flights82.6%
- Jan–Mar 202690 flights75.6%
- Apr–Jun 202647 flights76.1%
- Jul–Sep 202662 flights65.6%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, AA 688 did best on Tuesday at 90.0% on time and worst on Sunday at 64.4%. Each day rests on about 45 flights, so a gap of 26 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AA 688 runs when it is late
AA 688 often beats the schedule: 120 of 307 completed flights, 39%, arrived 15 minutes or more early. The 76 late arrivals split 21 under half an hour, 17 between 30 and 60 minutes, and 38 an hour or more.
- 15+ min early120 flights39.1%
- Within 15 min111 flights36.2%
- 15–29 min late21 flights6.8%
- 30–59 min late17 flights5.5%
- 1–2 hours late14 flights4.6%
- 2+ hours late24 flights7.8%
Scale runs 0% to 100%.
Share of 307 completed flights by arrival against schedule.
19 of 75 late departures made up the time and arrived on time, 25% of them. In the other direction, 20 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at MIA.
The worst days
Worst days for AA 688
The latest arrival of the period was on 19 February 2026, 7 hours 26 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across February, July, November and June, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 February 2026 | 7 hours 26 minutes | Carrier |
| 18 July 2026 | 7 hours 4 minutes | Extreme weather |
| 3 November 2025 | 6 hours 45 minutes | Late-arriving aircraft |
| 6 July 2026 | 6 hours 12 minutes | Late-arriving aircraft |
| 10 June 2026 | 5 hours 52 minutes | Carrier |
Delay causes
Why AA 688 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 8,069 reported delay minutes.
- 41%Late-arriving aircraft
- 40%Carrier
- 12%National Airspace System
- 7%Extreme weather
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,069 reported delay minutes here, that single category outweighs weather by 6 to one. The split is drawn from 8,069 delay minutes reported on AA 688.
Cancellations run at 3.15%, against 1.89% nationally. That is about one flight in 30 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
12.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 1,089 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 317 flights under AA 688 in the data flew JFK 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. 317 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 688
For a booking, the cancellation rate is the figure to plan around on AA 688: 3.15% of its 317 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- JFK to MIA, every carrier and departure
- MIA to JFK, the return direction
- American Airlines 2017 on the same route84.8%
- Delta Air Lines 1514 on the same route77.0%
- Delta Air Lines 1528 on the same route84.8%
- Delta Air Lines 1428 on the same route68.7%
- Delta Air Lines 2500 on the same route70.8%
- John F. Kennedy International (JFK) 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.