Carrier performance at one airport
AA→JAX
American Airlines at Jacksonville International
- Departures
- 7,178
- Period
- June 2025 to May 2026
- Routes
- 7
- Rank here
- #7 of 11
American Airlines at Jacksonville lands a B, about a point better than the national rate of 77.4%. About one flight in five arrive 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 7,178 flights, of which Delta Air Lines flew 5,216 at 83.8% on time.
Measured against the airport rather than the country, American Airlines runs about a point behind the 79.6% weighted average across all carriers at JAX. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.
Key figures
On time
78.3%
7,012 completed departures
Avg delay
92 min
Across delayed flights only
Cancelled
2.12%
At JAX, this carrier only
Rank here
#7
Of 11 carriers clearing the floor at JAX
These figures cover 7,178 flights between June 2025 and May 2026. Beyond the headline rate, 9.0% 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.
Against the competition
Every carrier at JAX, ranked
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 83.8% of the time; Allegiant Air manages 66.3%. Sample sizes sit next to every figure, because a two-point gap across 1,041 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 5,216 | 83.8% | 85 min | 1.82% | B |
| United Airlines | 3,893 | 83.5% | 91 min | 0.87% | B+ |
| Southwest Airlines | 4,690 | 81.1% | 57 min | 0.96% | B+ |
| Republic Airways | 2,118 | 81.1% | 86 min | 3.16% | B− |
| SkyWest Airlines | 512 | 79.4% | 101 min | 1.56% | B |
| Envoy Air | 982 | 78.9% | 58 min | 0.81% | B+ |
| American Airlines (this page) | 7,178 | 78.3% | 92 min | 2.12% | B |
| JetBlue Airways | 1,623 | 72.8% | 68 min | 3.57% | C− |
| PSA Airlines | 775 | 71.7% | 118 min | 4.52% | C− |
| Frontier Airlines | 615 | 68.8% | 88 min | 3.58% | C− |
| Allegiant Air | 1,041 | 66.3% | 102 min | 0.58% | C+ |
PSA Airlines cancels 4.5% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Route by route
Where American Airlines flies from JAX
American Airlines operates 7 routes out of JAX with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| JAX to CLT · Charlotte | 1,994 | 80.6% | 79 min | 1.40% | B |
| JAX to DFW · Dallas-Fort Worth | 1,792 | 76.1% | 95 min | 3.12% | B− |
| JAX to DCA · Washington | 1,034 | 70.8% | 83 min | 2.42% | C |
| JAX to MIA · Miami | 828 | 79.8% | 83 min | 1.21% | B |
| JAX to PHL · Philadelphia | 749 | 81.6% | 109 min | 2.54% | B |
| JAX to ORD · Chicago | 460 | 78.5% | 137 min | 2.61% | B |
| JAX to PHX · Phoenixthin sample | 317 | 88.3% | 132 min | 0.63% | A+ |
Departure window
Best time of day for this operation
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 30 points, against 18 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am2,218 flights89.2%
- 8am–11am1,167 flights87.7%
- 11am–2pm1,078 flights82.9%
- 2pm–5pm1,002 flights62.7%
- 5pm–8pm1,363 flights65.2%
- 8pm–5am350 flights59.0%
Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 59.0% on time, against 89.2% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in.
Across the year
Seasonal pattern
July is the worst month at 68.0% on time, 16 points below April, the best at 84.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck.
Delay causes
What holds this operation up
- 46%Late-arriving aircraft
- 38%Carrier
- 11%National Airspace System
- 5%Extreme weather
- 0%Security
46% 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 140,000 reported delay minutes here, that single category outweighs weather by 10 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.
Cancellations sit at 2.12% against a national 1.80%, which is ordinary. Diversions add another 0.20%.
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.0% of arrivals land a full hour or more behind schedule, against 8.2% 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 sample behind these figures is 7,178 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Put together: the calendar is the biggest lever here, not the carrier or the hour. April runs 84.0% on time and July 68.0%, a swing of 16 points. If the dates move at all, move them out of July before you think about anything else.
Common questions
American Airlines at JAX
How often is American Airlines at JAX delayed?
About one flight in five arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.7% of the 7,178 flights in this analysis, against 22.6% nationally. Delayed flights are late by an hour and a half on average.
Which airline is most reliable on American Airlines at JAX?
Delta Air Lines leads at 83.8% on time across 5,216 flights. Allegiant Air is at the other end on 66.3%, a gap of 18 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on American Airlines at JAX?
The 5am–8am departure window is the strongest at 89.2% on time. The 8pm–5am window is the weakest at 59.0%, 30 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on American Airlines at JAX?
July is the weakest month at 68.0% on time, compared with 84.0% in April. Across the year that is 16 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, June 2025 to May 2026. Updated monthly. How this data is collected.