Fort Lauderdale (FLL) to Atlanta (ATL): On-Time Performance
Data through May 2026
Fort Lauderdale (FLL) to Atlanta (ATL) effectively runs on two schedules. In September 2025, 83% of arrivals were on time; in July 2024 that fell to 58% — a 26-point seasonal swing. Across the full period the route averages 72% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 59%), which matters most in the rough months.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 22 min
- completed flights
- Cancelled
- 2.0%
- Flights/day
- 20
- last 12 months
- Duration
- 1h 60m
- scheduled
- Distance
- 581 mi
Best airline from FLL to ATL
5 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 83% | 9 min | 1.5% | 722 |
| Delta Air Lines | 77% | 19 min | 1.6% | 8,426 |
| Frontier Airlines | 62% | 34 min | 3.2% | 1,265 |
| Spirit Airlines | 62% | 26 min | 2.5% | 3,109 |
| JetBlue Airways | 58% | 28 min | 3.3% | 568 |
Monthly on-time trend
Best time to fly from FLL to ATL
Aim for departures around 5 a.m. (91% on-time); avoid 4 p.m. departures (54%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 69% | 26 min |
| Tuesday | 78% | 17 min |
| Wednesdaybest | 80% | 15 min |
| Thursday | 74% | 17 min |
| Friday | 71% | 23 min |
| Saturday | 71% | 22 min |
| Sunday | 62% | 32 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft41%
- Airline operations31%
- National airspace system23%
- Weather4%
Frequently asked questions
- How often are flights from FLL to ATL delayed?
- 28% of FLL–ATL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 22 minutes.
- Which airline is most reliable from FLL to ATL?
- Southwest Airlines has the best on-time record on this route at 83%, based on 722 flights. 5 airlines flew FLL–ATL frequently enough to compare in this period.
- What is the best time of day to fly from FLL to ATL?
- Departures around 5 a.m. have the best record (91% on-time), while departures around 4 p.m. have the worst (54%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from FLL to ATL?
- The scheduled FLL–ATL flight time averages 1h 60m over 581 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are FLL to ATL flights cancelled?
- 2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from FLL to ATL?
- July 2024 was the roughest month in this dataset, with only 58% of arrivals on time. The best was September 2025 at 83%. If your dates are flexible, that 26-point gap is worth planning around.
Explore related pages
- Return route: ATL to FLL on-time stats
- Fort Lauderdale Hollywood International Airport departure performance
- Hartsfield Jackson Atlanta International Airport airport reliability
- Delta Air Lines on-time record
- Spirit Airlines on-time record
- Frontier Airlines on-time record
- Southwest Airlines on-time record
More routes from FLL
Based on 14,090 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.