Carrier performance at one airport
UA→FLL
United Airlines at Fort Lauderdale-Hollywood International
- Departures
- 8,844
- Period
- June 2025 to May 2026
- Routes
- 7
- Rank here
- #1 of 9
United Airlines at Fort Lauderdale lands a B, 5 points better than the national rate of 77.4%. About one flight in six arrive 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 8,844 flights, of which United Airlines flew 8,844 at 82.1% on time.
Measured against the airport rather than the country, United Airlines runs 11 points ahead of the 71.4% 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
82.1%
8,715 completed departures
Avg delay
82 min
Across delayed flights only
Cancelled
1.12%
At FLL, this carrier only
Rank here
#1
Of 9 carriers clearing the floor at FLL
These figures cover 8,844 flights between June 2025 and May 2026. The median arrival is 10 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Against the competition
Every carrier at FLL, ranked
The choice of carrier is not cosmetic here. United Airlines arrives on time 82.1% of the time; Allegiant Air manages 62.5%. Sample sizes sit next to every figure, because a two-point gap across 4,573 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines (this page) | 8,844 | 82.1% | 82 min | 1.12% | B |
| Delta Air Lines | 12,883 | 76.2% | 79 min | 2.17% | B |
| American Airlines | 7,467 | 74.5% | 99 min | 2.56% | C |
| Southwest Airlines | 11,693 | 72.7% | 55 min | 1.11% | C |
| Alaska Airlines | 644 | 69.2% | 55 min | 1.24% | C |
| Spirit Airlines | 20,066 | 68.3% | 70 min | 3.49% | C− |
| JetBlue Airways | 21,594 | 68.2% | 67 min | 2.15% | C |
| Frontier Airlines | 2,881 | 62.7% | 93 min | 3.05% | D− |
| Allegiant Air | 4,573 | 62.5% | 77 min | 0.87% | D+ |
Spirit Airlines cancels 3.5% 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 United Airlines flies from FLL
United Airlines operates 7 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 EWR · Newark | 2,640 | 76.6% | 85 min | 2.27% | B |
| FLL to IAH · Houston | 1,803 | 87.7% | 83 min | 0.78% | A+ |
| FLL to ORD · Chicago | 1,448 | 75.0% | 79 min | 0.69% | B+ |
| FLL to DEN · Denver | 1,251 | 87.1% | 100 min | 0.32% | A+ |
| FLL to IAD · Washington | 732 | 85.6% | 71 min | 0.41% | A+ |
| FLL to SFO · San Francisco | 491 | 83.3% | 61 min | 0.61% | B+ |
| FLL to CLE · Cleveland | 479 | 92.2% | 80 min | 1.04% | A |
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 23 points, against 20 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am1,376 flights91.8%
- 8am–11am2,059 flights91.4%
- 11am–2pm2,282 flights84.9%
- 2pm–5pm1,595 flights68.7%
- 5pm–8pm1,372 flights70.0%
- 8pm–5am160 flights72.8%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 91.8% of the time, against 68.7% for the afternoon window. That is 23 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on.
Across the year
Seasonal pattern
July is the worst month at 75.5% on time, 12 points below May, the best at 87.9%. 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.
Delay causes
What holds this operation up
- 45%National Airspace System
- 28%Late-arriving aircraft
- 20%Carrier
- 7%Extreme weather
45% 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 57,000 minutes out of 129,000, against a national NAS share of 21%.
Cancellations sit at 1.12% against a national 1.80%, which is ordinary. Diversions add another 0.34%.
6.9% of arrivals land an hour or more late, close to the national 8.2%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route are the an hour and a half kind, which a normal layover absorbs.
The sample behind these figures is 8,844 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.
Put together: the calendar is the biggest lever here, not the carrier or the hour. May runs 87.9% on time and July 75.5%, a swing of 12 points. If the dates move at all, move them out of July before you think about anything else.
Common questions
United Airlines at FLL
How often is United Airlines at FLL delayed?
About one flight in six arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 17.9% of the 8,844 flights in this analysis, against 22.6% nationally. Delayed flights are late by an hour and a half on average.
Which airline is most reliable on United Airlines at FLL?
United Airlines leads at 82.1% on time across 8,844 flights. Allegiant Air is at the other end on 62.5%, a gap of 20 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 United Airlines at FLL?
The 5am–8am departure window is the strongest at 91.8% on time. The 2pm–5pm window is the weakest at 68.7%, 23 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 United Airlines at FLL?
July is the weakest month at 75.5% on time, compared with 87.9% in May. Across the year that is 12 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
Source: US DOT Bureau of Transportation Statistics, on-time performance data, June 2025 to May 2026. Updated monthly. How this data is collected.