Carrier route record
F9ATL→MCO
Frontier Airlines · Atlanta to Orlando
- Flights
- 1,181
- Period
- July 2025 to June 2026
- Share of route
- 14%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on ATL to MCO draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 1,181 flights. The strongest carrier on the route with a full sample, Southwest Airlines, flew 1,095 at 75.4% on time.
Southwest Airlines is the most reliable of the three carriers covered here at 75.4% on time across 1,095 flights.
Key figures
On time
65.6%
Arrivals under 15 minutes late, of 1,161 completed flights
Avg delay
112 min
Across delayed arrivals only, not all flights
Cancelled
1.61%
National rate is 1.81%
Whole route
70.7%
Every carrier on ATL to MCO, 8,211 flights
These figures cover 1,181 flights between July 2025 and June 2026. Beyond the headline rate, 16.6% 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 ATL to MCO
Frontier flew 1,181 of the 8,211 flights on ATL to MCO, about 14% of it. Its 65.6% on time is 5 points worse than the route as a whole, which runs 70.7%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Southwest at 75.4% to Frontier at 65.6%.
The three carriers here are closely matched: 5 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 1,095 | 75.4% | 61 min | 1.10% | B |
| Spirit Airlines | 470 | 71.5% | 89 min | 3.62% | C− |
| Delta Air Lines | 5,465 | 70.7% | 64 min | 1.17% | C |
| Frontier Airlines (this page) | 1,181 | 65.6% | 112 min | 1.61% | C |
Spirit Airlines cancels 3.6% 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.
Flight by flight
Frontier flight numbers on ATL to MCO
Departure window
When Frontier runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 29 points, against 5 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am157 flights81.4%
- 8am–11am272 flights77.0%
- 11am–2pm137 flights81.3%
- 2pm–5pm160 flights54.8%
- 5pm–8pm189 flights52.2%
- 8pm–5am266 flights52.3%
Scale runs 45% to 85%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 52.2% on time, against 81.4% 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. The 8am–11am window is the busiest, with 272 flights scheduled in it.
Across the year
Frontier on ATL to MCO through the year
July is the worst month at 54.1% on time, 21 points below September, the best at 75.0%. 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. April was the busiest month here, with 125 flights.
Across the week, Wednesday is the strongest day at 79.4% on time and Sunday the weakest at 53.3%. 26 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 58% of the 45,000 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.
- 58%Late-arriving aircraft
- 27%Carrier
- 14%National Airspace System
- 1%Extreme weather
58% 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 45,000 reported delay minutes here, that single category outweighs weather by 58 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 44,793 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 81.4% on time here.
Cancellations sit at 1.61% against a national 1.81%, which is ordinary. Diversions add another 0.08%.
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. 16.6% 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 404 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 5am–8am window matters as much as it does.
The return leg runs 67.7% on time across 1,180 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,181 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.
What to do with this
Booking Frontier on ATL to MCO
Put together: the calendar is the biggest lever here, not the carrier or the hour. September runs 75.0% on time and July 54.1%, a swing of 21 points. If the dates move at all, move them out of July before you think about anything else. 1,161 completed flights over 12 months sit behind that.
Related
Where to go next
- ATL to MCO, every carrier
- Frontier on MCO to ATL, the return leg
- Southwest Airlines on ATL to MCO75.4%
- Spirit Airlines on ATL to MCO71.5%
- Delta Air Lines on ATL to MCO70.7%
- Frontier Airlines network-wide record
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Orlando International (MCO) 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.