Carrier route record
F9JAX→ATL
Frontier Airlines · Jacksonville to Atlanta
- Flights
- 188
- Period
- July 2025 to June 2026
- Share of route
- 5%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on JAX to ATL earns an F, which is as low as this site's scale goes for a reason. Only 53.6% of flights arrive inside the 15-minute window, 24 points worse than the national rate of 77.6%. Late arrivals average a little over an hour. Treat any tight connection here as a coin flip. That rests on 188 flights, with a median arrival 11 minutes late.
The national on-time rate over the same period is 77.6%, so Frontier on JAX to ATL runs 24 points behind the country as a whole. Across a thousand flights that is about 240 extra late arrivals.
Key figures
On time
53.6%
Arrivals under 15 minutes late, of 183 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
2.13%
National rate is 1.81%
Whole route
84.9%
Every carrier on JAX to ATL, 4,018 flights
These figures cover 188 flights between July 2025 and June 2026. Beyond the headline rate, 17.5% 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.
Carrier by carrier
Frontier against every carrier on JAX to ATL
Frontier flew 188 of the 4,018 flights on JAX to ATL, about 5% of it. Its 53.6% on time is 31 points worse than the route as a whole, which runs 84.9%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 86.4% to Frontier at 53.6%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 3,830 | 86.4% | 84 min | 1.49% | A |
| Frontier Airlines (this page)thin sample | 188 | 53.6% | 79 min | 2.13% | F |
Departure window
When Frontier runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 188 flights.
There are not enough flights in each departure window to split Frontier's JAX to ATL record by time of day without the percentages moving on noise. The headline rate of 53.6% is the reliable figure here.
Across the year
Frontier on JAX to ATL through the year
- Jul–Sep 202526 flights—
- Oct–Dec 202532 flights58.1%
- Jan–Mar 202649 flights58.3%
- Apr–Jun 202681 flights44.3%
Scale runs 35% to 65%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 53.6% on time across 188 flights.
Frontier on JAX to ATL did not run the same all year. Its best quarter was Jan–Mar 2026 at 58.3% on time and its weakest Apr–Jun 2026 at 44.3%, a swing of 14 points on roughly 63 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.
Across the week, Thursday is the strongest day at 58.3% on time and Monday the weakest at 36.7%. 22 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Frontier runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 6,685 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.
- 44%Late-arriving aircraft
- 35%National Airspace System
- 21%Carrier
44% 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 6,685 reported delay minutes here, that single category outweighs weather by 44 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 6,685 reported delay minutes.
35% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,350 minutes out of 6,685, against a national NAS share of 21%.
Cancellations sit at 2.13% against a national 1.81%, which is ordinary. Diversions add another 0.53%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 17.5% of arrivals land a full hour or more behind schedule, against 8.1% 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.
At 269 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5pm–8pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 58.4% on time across 188 flights, 5 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 5 points of difference.
One caution: this is a thin sample. 188 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 Frontier on JAX to ATL
Put together: treat all of this as provisional. 188 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 53.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 183 completed flights over 12 months sit behind that.
Related
Where to go next
- JAX to ATL, every carrier
- Frontier on ATL to JAX, the return leg
- Delta Air Lines on JAX to ATL86.4%
- Frontier Airlines network-wide record
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Why the first flight of the morning is statistically safest
- How often a connection fails at the major US hubs
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.