Carrier performance at one airport
DL→FLL
Delta Air Lines at Fort Lauderdale-Hollywood International
- Departures
- 12,987
- Period
- September 2025 to August 2026
- Routes
- 11
- Rank here
- #2 of 9
Delta Air Lines at Fort Lauderdale lands a B, level with the national rate of 77.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 12,987 flights, of which United Airlines flew 9,046 at 82.6% on time.
Measured against the airport rather than the country, Delta Air Lines runs 6 points ahead of the 70.3% weighted average across all carriers at FLL. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.
Key figures
On time
76.7%
12,656 completed departures
Avg delay
74 min
Across delayed flights only
Cancelled
2.29%
At FLL, this carrier only
Rank here
#2
Of 9 carriers clearing the floor at FLL
These figures cover 13,000 flights between September 2025 and August 2026. Beyond the headline rate, 9.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Against the competition
Every carrier at FLL, ranked
The choice of carrier is not cosmetic here. United Airlines arrives on time 82.6% of the time; Allegiant Air manages 60.9%. Sample sizes sit next to every figure, because a two-point gap across 4,734 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 9,046 | 82.6% | 81 min | 1.15% | B |
| Delta Air Lines (this page) | 12,987 | 76.7% | 74 min | 2.29% | B |
| American Airlines | 7,998 | 74.3% | 99 min | 2.38% | C |
| Alaska Airlines | 644 | 72.3% | 53 min | 0.93% | C+ |
| Southwest Airlines | 11,494 | 71.2% | 54 min | 1.16% | C |
| JetBlue Airways | 25,162 | 66.9% | 68 min | 2.81% | C |
| Spirit Airlines | 14,820 | 65.2% | 70 min | 4.47% | C− |
| Frontier Airlines | 3,948 | 63.0% | 94 min | 3.47% | D− |
| Allegiant Air | 4,734 | 60.9% | 79 min | 0.91% | D+ |
Spirit Airlines cancels 4.5% 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 Delta Air Lines flies from FLL
Delta Air Lines operates 11 routes out of FLL 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 |
|---|---|---|---|---|---|
| FLL to ATL · Atlanta | 4,379 | 78.5% | 73 min | 1.92% | B |
| FLL to DTW · Detroit | 1,810 | 78.6% | 70 min | 1.55% | B |
| FLL to JFK · New York | 1,615 | 74.9% | 77 min | 4.02% | C− |
| FLL to LGA · New York | 1,590 | 71.8% | 69 min | 3.90% | C− |
| FLL to BOS · Boston | 886 | 72.1% | 78 min | 3.16% | C− |
| FLL to MSP · Minneapolis | 709 | 81.1% | 79 min | 1.55% | B |
| FLL to CVG · Cincinnati | 525 | 71.8% | 84 min | 0.95% | C+ |
| FLL to LAX · Los Angeles | 377 | 83.2% | 84 min | 1.59% | B |
| FLL to SLC · Salt Lake City | 365 | 74.5% | 74 min | 0.27% | C+ |
| FLL to SEA · Seattlethin sample | 364 | 79.5% | 58 min | 1.37% | B |
| FLL to RDU · Raleighthin sample | 364 | 75.0% | 92 min | 0.55% | B+ |
Flight by flight
Delta Air Lines flight numbers from FLL
14 Delta Air Lines flight numbers leaving FLL flew their main route often enough to have a record of their own. Grouped by destination.
- DL 1094to ATL 11:2580.9%
- DL 1168to ATL 05:2596.7%
- DL 1215to ATL 06:3093.9%
- DL 1271to ATL 12:2876.2%
- DL 1326to ATL 07:4088.7%
- DL 661to CVG 17:5971.7%
- DL 655to DTW 11:3081.1%
- DL 2631to DTW 06:0091.3%
- DL 2165to JFK 07:2589.2%
- DL 800to LAX 07:0586.5%
- DL 2133to LGA 07:0093.2%
- DL 1018to RDU 15:2075.0%
- DL 356to SEA 08:3581.9%
- DL 745to SLC 17:4574.5%
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 22 points between the best and worst carrier.
- 5am–8am2,605 flights91.9%
- 8am–11am1,347 flights85.1%
- 11am–2pm2,780 flights76.6%
- 2pm–5pm2,789 flights70.4%
- 5pm–8pm2,394 flights68.1%
- 8pm–5am1,072 flights64.5%
Scale runs 55% to 95%.
The 8pm–5am window is where this operation falls apart: 64.5% on time, against 91.9% 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 2pm–5pm window is the busiest, with 2,789 flights scheduled in it.
Across the year
Seasonal pattern
July is the worst month at 67.7% on time, 16 points below September, the best at 83.5%. 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. March was the busiest month here, with 1,279 flights.
Delay causes
What holds this operation up
- 43%Late-arriving aircraft
- 32%Carrier
- 22%National Airspace System
- 3%Extreme weather
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 220,000 reported delay minutes here, that single category outweighs weather by 13 to one. The split is drawn from 219,582 reported delay minutes.
Cancellations sit at 2.29% against a national 1.89%, which is ordinary. Diversions add another 0.26%.
9.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
12,987 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.
Put together: the calendar is the biggest lever here, not the carrier or the hour. September runs 83.5% on time and July 67.7%, a swing of 16 points. If the dates move at all, move them out of July before you think about anything else. 12,656 completed flights over 12 months sit behind that.
Common questions
Delta Air Lines at FLL
How often is Delta Air Lines at FLL delayed?
About one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 23.3% of the 12,987 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on Delta Air Lines at FLL?
United Airlines leads at 82.6% on time across 9,046 flights. Allegiant Air is at the other end on 60.9%, a gap of 22 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 Delta Air Lines at FLL?
The 5am–8am departure window is the strongest at 91.9% on time. The 8pm–5am window is the weakest at 64.5%, 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 Delta Air Lines at FLL?
July is the weakest month at 67.7% on time, compared with 83.5% in September. 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
- Delta Air Lines network-wide record
- Fort Lauderdale-Hollywood International (FLL) all carriers
- FLL to ATL route record78.5%
- FLL to DTW route record78.6%
- FLL to JFK route record74.9%
- FLL to LGA route record71.8%
- Do airlines run better at their own hubs?
- Why the first flight of the morning is statistically safest
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.