69% of flights from Atlanta to Fort Lauderdale arrived on time over the past 12 months. That is worse than the typical U.S. route. The 7 a.m. departures ran on time 86% of the time; the 6 p.m. ones 55%. Most reliable airline: Delta Air Lines (72%). 13% of flights arrived more than an hour late or not at all.
How late?
The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for ATL → FLL: when a flight was late, it was under 45 minutes late 53% of the time. About 1 in 10 flights landed an hour or more late, and 1 in 66 three hours or more; 2.5% were cancelled outright.
- On time or early69%
- 15–30 min late10%
- 30–60 min late8.1%
- 1–2 hours late6.8%
- 2–3 hours late2.2%
- 3+ hours late1.5%
- Diverted0.2%
- Cancelled2.5%
Share of all 7,371 scheduled flights, past 12 months, by arrival time against schedule.
By airline
| Airline | Flights | On time | Cancelled | Typical arrival | 1h+ late | Avg when late | Operated by |
|---|---|---|---|---|---|---|---|
| Delta Air Lines | 4,383 | 72% | 1.8% | −2 min | 8.0% | +57 min | Delta Air Lines |
| Spirit Airlines | 1,092 | 62% | 4.4% | +1 min | 14.0% | +72 min | Spirit Airlines |
| Frontier Airlines | 1,008 | 62% | 2.5% | +1 min | 15.7% | +77 min | Frontier Airlines |
| JetBlue | 887 | 67% | 3.4% | −2 min | 12.4% | +82 min | JetBlue |
| Southwest Airlines | 1 | — | — | — | — | — | Southwest Airlines |
Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.
Best time of day to fly
On-time rate by scheduled departure hour (local time at ATL). Delays build through the day as late planes knock on, so early flights usually do best.
By airline and hour
| Departs | Delta Air Lines | Spirit Airlines | Frontier Airlines | JetBlue |
|---|---|---|---|---|
| 5 a.m. | — | 70% | — | — |
| 6 a.m. | — | — | 75% | — |
| 7 a.m. | 87% | — | — | 85% |
| 8 a.m. | 85% | — | — | 81% |
| 9 a.m. | 80% | — | — | — |
| 10 a.m. | 81% | — | — | — |
| 11 a.m. | 71% | — | — | 68% |
| noon | 74% | — | — | — |
| 1 p.m. | 69% | — | — | — |
| 2 p.m. | 70% | — | — | — |
| 3 p.m. | 65% | — | — | — |
| 4 p.m. | 64% | — | 57% | — |
| 5 p.m. | 66% | 53% | — | — |
| 7 p.m. | 61% | — | — | — |
| 8 p.m. | 68% | — | — | — |
| 9 p.m. | 65% | 62% | — | — |
| 10 p.m. | 67% | — | 56% | — |
Last flight of the day
On ATL → FLL, each airline's last flight of the day was cancelled 2.9% of the time, against 2.4% for its earlier flights, about the same. It arrived 3+ hours late 2.6% of the time (earlier flights: 1.3%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.
| Airline | Last departure | Last: cancelled | Last: 3h+ late | Earlier: cancelled | Next morning |
|---|---|---|---|---|---|
| JetBlue | 9:40 p.m. | 3.3% | 6.0% | 3.4% | first flight 7:00 a.m. |
| Delta Air Lines | 10:50 p.m. | 1.9% | 0.5% | 1.8% | first flight 7:00 a.m. |
| Frontier Airlines | 10:48 p.m. | 2.9% | 1.5% | 2.3% | first flight 6:35 a.m. |
| Spirit Airlines | — | 3.7% | 3.3% | 4.6% | — |
Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.
By month
Each calendar month pooled over 2023–2026. Best: October (82%). Worst: July (59%).
By day of week
| Day | Flights | On time | Cancelled |
|---|---|---|---|
| Monday | 1,107 | 66% | 3.3% |
| Tuesday | 1,020 | 78% | 1.6% |
| Wednesday | 1,005 | 79% | 0.9% |
| Thursday | 1,067 | 70% | 0.7% |
| Friday | 1,087 | 67% | 2.1% |
| Saturday | 1,003 | 67% | 3.2% |
| Sunday | 1,082 | 56% | 5.3% |
Why flights were late
Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.
Cancellations: airline 112 · weather 52 · air traffic/airport 17
Month by month
Flight numbers on this route
Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.
| Flight | Departs | Flights | On time | Cancelled | Typical arrival | Operated by |
|---|---|---|---|---|---|---|
| F9 2172 | 6:35 a.m. | 242 | 74% | 1.2% | −5 min | Frontier Airlines |
| B6 1797 | 7:00 a.m. | 303 | 84% | 4.3% | −7 min | JetBlue |
| DL 1334 | 7:25 a.m. | 347 | 88% | 2.9% | −10 min | Delta Air Lines |
| DL 1094 | 8:05 a.m. | 256 | 85% | 2.7% | −8 min | Delta Air Lines |
| DL 1271 | 9:25 a.m. | 256 | 81% | 3.5% | −6 min | Delta Air Lines |
| DL 1512 | 10:25 a.m. | 365 | 80% | 2.5% | −3 min | Delta Air Lines |
| B6 2097 | 11:50 a.m. | 290 | 68% | 2.4% | 0 min | JetBlue |
| DL 1341 | 12:30 p.m. | 365 | 73% | 0.5% | −1 min | Delta Air Lines |
| DL 1413 | 1:25 p.m. | 332 | 71% | 1.8% | −1 min | Delta Air Lines |
| F9 3014 | 2:54 p.m. | 172 | 53% | 2.9% | +8 min | Frontier Airlines |
| DL 2345 | 3:25 p.m. | 351 | 66% | 0.6% | +5 min | Delta Air Lines |
| DL 1295 | 4:40 p.m. | 349 | 67% | 0.9% | 0 min | Delta Air Lines |
| DL 1670 | 5:45 p.m. | 255 | 59% | 2.4% | +7 min | Delta Air Lines |
| DL 1489 | 7:58 p.m. | 353 | 64% | 0.9% | +3 min | Delta Air Lines |
| DL 1107 | 9:15 p.m. | 161 | 61% | 0.6% | +4 min | Delta Air Lines |
| B6 1697 | 9:40 p.m. | 240 | 45% | 3.8% | +19 min | JetBlue |
| DL 1229 | 10:40 p.m. | 255 | 64% | 2.4% | −1 min | Delta Air Lines |
| F9 2174 | 10:48 p.m. | 293 | 56% | 3.1% | +7 min | Frontier Airlines |
Worst days in the past year
| Date | Flights | On time | Cancelled |
|---|---|---|---|
| Mar 16, 2026 | 25 | 0% | 14 |
| Feb 22, 2026 | 25 | 8% | 3 |
| Dec 7, 2025 | 21 | 14% | 3 |
| Mar 7, 2026 | 23 | 17% | 2 |
| Dec 27, 2025 | 25 | 20% | 0 |
Nearby airport alternatives
Other ways to make the same trip, using airports within 60 miles of Atlanta or Fort Lauderdale. ATL → PBI has been 6 points more reliable.
| Route | Flights | On time | Cancelled |
|---|---|---|---|
| ATL → FLL (this route) | 7,371 | 69% | 2.5% |
| ATL → PBI Atlanta Hartsfield-Jackson to President Donald J. Trump | 3,475 | 74% | 1.6% |
| ATL → MIA Atlanta Hartsfield-Jackson to Miami | 6,280 | 70% | 1.6% |
Questions
How often are flights from ATL to FLL on time?
69% of 7,371 scheduled flights from Atlanta, GA to Fort Lauderdale, FL arrived within 15 minutes of schedule between September 2025 and August 2026. 2.5% were cancelled.
What is the best time of day to fly ATL to FLL?
Flights scheduled to leave at 7 a.m. were the most reliable (86% on time). The 6 p.m. departures were the least (55%).
Which airline is most on time from ATL to FLL?
Delta Air Lines: 72% of its 4,383 flights on the route arrived on time. Spirit Airlines: 62%. Frontier Airlines: 62%. JetBlue: 67%.
What month has the most delays from ATL to FLL?
July (59% on time). The best month is October (82%), over 2023–2026.
Is the last flight of the day from ATL to FLL more likely to be cancelled?
Not much. Each airline's last ATL–FLL flight of the day was cancelled 2.9% of the time over the past year, against 2.4% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.
Related
- FLL → ATL (return)
- Atlanta Hartsfield-Jackson (ATL) delays by hour
- Flights into Fort Lauderdale (FLL)
- Delta Air Lines on-time record
- Spirit Airlines on-time record
- Frontier Airlines on-time record
- JetBlue on-time record
- Southwest Airlines on-time record
- Connecting off this flight? Check the risk
Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.