Flight profile · Delta Air Lines
DL477
Los Angeles (LAX) to Fort Lauderdale (FLL) · scheduled 11:30 PM – 7:05 AM
How DL477 performs
767 operations, June 2024 – July 2026.
DL477 arrived on time 68.8% of the time, against 77.5% for all LAX → FLL flights, so this departure is 8.7 percentage points worse than the route as a whole. Against Delta Air Lines’ own flights on this route it is 5.0 points worse.
Source: US DOT Bureau of Transportation Statistics · 767 operations, June 2024 – July 2026 · If DL477 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where DL477 is right now
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| DL477 | 68.8% | 0.78% | 2 min | 7.1% | 767 |
| Delta Air Lines on LAX → FLL | 73.8% | 0.56% | 0 min | 6.0% | 1,072 |
| All LAX → FLL flights | 77.5% | 0.84% | -5 min | 6.8% | 6,403 |
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026
Why DL477 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for DL477 on LAX → FLL. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies DL477 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, DL477 pushed back an average of 29 minutes late; when it came in on time or early, an average of 5 minutes late.
Each departure is matched to the flight the same aircraft flew into LAX just before it, using the tail number in the DOT file, 686 of 761 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| DL477 | 22% | 65% | 12% |
| Network, same turn | 17% | 68% | 9% |
The schedule leaves a normal turn: enough time to clean and board if the aircraft is on time, little to spare if it is not.
The network row is every flight with a scheduled turn of 60 to 89 minutes. How often DL477’s aircraft landed 15 or more minutes late is higher than the network’s and, once the aircraft was late, how often DL477 left 15 or more minutes late is lower than the network’s.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026
From pushback to gate
When it leaves LAX late, does that still matter by the time it reaches FLL?
On arrival at FLL, DL477 spends 8.6 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 1.2 minutes longer than a typical FLL arrival (7.4 min).
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached FLL. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 22,331 departures from LAX scheduled in the clock hour DL477 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at FLL (278,720 flights), not just DL477’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026
The hour it leaves LAX
Part of any flight’s record belongs to the clock rather than to the flight. DL477 has one departure time, so this is what that time is worth.
On-time arrival rate. 22,331 departures from LAX are scheduled in the 11 PM–12 AM hour over the period, against 595,153 across the whole day.
DL477 is scheduled out of LAX at 11:30 PM, in the 11 PM–12 AM bank. Departures from LAX in that hour arrive on time 80.8% of the time against 81.4% across the airport’s whole day, so the hour DL477 leaves in is an ordinary one for LAX and explains nothing about its record either way.
The two airport figures cover every departure from LAX to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026 · Hours below 120 departures are not scored.
Other routes DL477 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SLC→ATL Salt Lake City to Atlanta | July 1, 2023 – June 6, 2024 | 201 | 89.5% |
| MIA→LGA Miami to New York | April 9, 2024 – May 6, 2024 | 28 | — |
| FLL→SEA Fort Lauderdale to Seattle | January 8, 2024 – March 9, 2024 | 62 | — |
| SEA→FLL Seattle to Fort Lauderdale | January 8, 2024 – March 9, 2024 | 62 | — |
| BUF→ATL Buffalo to Atlanta | December 16–30, 2023 | 13 | — |
| ATL→BUF Atlanta to Buffalo | December 17–30, 2023 | 12 | — |
| ATL→ECP Atlanta to Panama City Beach | November 4, 2023 | 1 | — |
| ATL→BOS Atlanta to Boston | October 28, 2023 – November 3, 2023 | 7 | — |
Because the same number has served different journeys, the statistics above describe only the route DL477 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
51 min late
against a median of 2 min late
Percentiles over 767 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| B61700 | JetBlue | 82.1% | 10 min early | 1,048 |
| B6100 | JetBlue | 78.5% | 7 min early | 975 |
| B6700 | JetBlue | 76.3% | 6 min early | 1,025 |
| DL477 this flight | Delta Air Lines | 68.8% | 2 min late | 767 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. DL477 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 767 records of DL477 operating LAX → FLL, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed