Carrier performance at one airport
AA→JAX
American Airlines at Jacksonville International
- Departures
- 7,101
- Period
- July 2025 to June 2026
- Routes
- 7
- Rank here
- #6 of 11
American Airlines at Jacksonville lands a B, about a point better than the national rate of 77.6%. 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 7,101 flights, of which Delta Air Lines flew 5,226 at 84.7% on time.
Measured against the airport rather than the country, American Airlines runs about a point behind the 79.7% 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
78.5%
6,943 completed departures
Avg delay
91 min
Across delayed flights only
Cancelled
1.99%
At JAX, this carrier only
Rank here
#6
Of 11 carriers clearing the floor at JAX
These figures cover 7,101 flights between July 2025 and June 2026. Beyond the headline rate, 8.9% 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 84.7% of the time; Allegiant Air manages 66.4%. Sample sizes sit next to every figure, because a two-point gap across 1,031 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 5,226 | 84.7% | 88 min | 1.68% | B |
| United Airlines | 3,969 | 83.8% | 92 min | 0.91% | B+ |
| Republic Airways | 2,244 | 81.0% | 91 min | 3.07% | B− |
| Southwest Airlines | 4,703 | 80.2% | 57 min | 0.96% | B+ |
| Envoy Air | 943 | 79.4% | 57 min | 0.74% | B+ |
| American Airlines (this page) | 7,101 | 78.5% | 91 min | 1.99% | B |
| SkyWest Airlines | 540 | 77.8% | 112 min | 2.04% | B |
| JetBlue Airways | 1,670 | 73.6% | 70 min | 3.53% | C− |
| PSA Airlines | 810 | 72.8% | 119 min | 4.44% | C− |
| Frontier Airlines | 631 | 68.5% | 85 min | 3.33% | C− |
| Allegiant Air | 1,031 | 66.4% | 110 min | 0.39% | C+ |
PSA Airlines cancels 4.4% 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 | 1,965 | 80.8% | 80 min | 1.07% | B |
| JAX to DFW · Dallas-Fort Worth | 1,795 | 76.7% | 96 min | 3.23% | B− |
| JAX to DCA · Washington | 1,004 | 71.6% | 72 min | 2.19% | C |
| JAX to MIA · Miami | 803 | 80.2% | 92 min | 1.00% | B |
| JAX to PHL · Philadelphia | 745 | 80.4% | 106 min | 2.28% | B |
| JAX to ORD · Chicago | 465 | 77.6% | 126 min | 2.80% | B |
| JAX to PHX · Phoenixthin sample | 320 | 88.4% | 140 min | 0.62% | 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 27 points, against 18 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am2,220 flights89.6%
- 8am–11am1,144 flights87.2%
- 11am–2pm1,052 flights82.5%
- 2pm–5pm949 flights62.8%
- 5pm–8pm1,385 flights65.0%
- 8pm–5am351 flights63.1%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 89.6% of the time, against 62.8% for the afternoon window. That is 27 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 2,220 flights scheduled in it.
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. October was the busiest month here, with 701 flights.
Delay causes
What holds this operation up
- 45%Late-arriving aircraft
- 39%Carrier
- 11%National Airspace System
- 4%Extreme weather
- 0%Security
45% 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 136,000 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. The split is drawn from 135,922 reported delay minutes.
Cancellations sit at 1.99% against a national 1.81%, which is ordinary. Diversions add another 0.24%.
8.9% 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 are the an hour and a half kind, which a normal layover absorbs.
The sample behind these figures is 7,101 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. 6,943 completed flights over 12 months sit behind that.
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 21.5% of the 7,101 flights in this analysis, against 22.4% 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 84.7% on time across 5,226 flights. Allegiant Air is at the other end on 66.4%, 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 89.6% on time. The 2pm–5pm window is the weakest at 62.8%, 27 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, July 2025 to June 2026. Updated monthly. How this data is collected.