Flight number record

DL 477

Delta Air Lines · Los Angeles to Fort Lauderdale

Route: LAX → FLL
Departs: 23:45
Flights: 363
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 477, check with Delta Air Lines.

DL 477 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land roughly 55 minutes behind schedule. That rests on 363 flights, with a median arrival 1 minute late.

The national on-time rate over the same period is 77.6%, so DL 477 runs 4 points behind the country as a whole. Across a thousand flights that is about 43 extra late arrivals.

On time

73.3%

Arrivals under 15 minutes late, of 359 completed flights

Avg delay

54 min

Across delayed arrivals only, not all flights

Cancelled

0.83%

National rate is 1.81%

1 hour+ late

6.1%

National rate is 8.1%

These figures cover 363 flights between July 2025 and June 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.

Schedule

When DL 477 flies

DL 477 flies LAX to FLL without a single fixed slot. Its most common scheduled departure was 23:45, used on 63 of 363 flights, with 23:30 (61 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 23:4563 flights17.4%
Departs 23:3061 flights16.8%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 23:45 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and DL 477 runs 3 points better at 73.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 477 next to LAX to FLL

Every carrier on LAX to FLL combined arrived on time 74.0% of the time across 2,275 flights, so DL 477 is about level with it. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 8 points.

DL 477 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 477thin sample	363	73.3%	54 min	0.83%	C+
All Delta Air Lines on LAX–FLLthin sample	363	73.3%	54 min	0.83%	C+
All carriers on LAX–FLL	2,275	74.0%	60 min	1.23%	C
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 477 quarter by quarter

DL 477 did not run the same all year. Its best quarter was Jul–Sep 2025 at 83.5% on time and its weakest Jan–Mar 2026 at 64.4%, a swing of 19 points on roughly 91 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202591 flights83.5%
Oct–Dec 202591 flights65.9%
Jan–Mar 202690 flights64.4%
Apr–Jun 202691 flights78.9%

Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 477 did best on Saturday at 85.4% on time and worst on Monday at 59.6%. Each day rests on about 52 flights, so a gap of 26 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 477 runs late

One category carries most of the weight here. Carrier accounts for 43% of the 5,157 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
43%
Late-arriving aircraft
35%
National Airspace System
20%
Extreme weather
1%
Security
1%

35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 5,157 reported delay minutes here, that single category outweighs weather by 24 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 5,157 delay minutes reported on DL 477.

Cancellations are rare at 0.83%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

6.1% of arrivals land an hour or more late, close to the national 8.1%. 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 last roughly 55 minutes, which a normal layover absorbs.

At 2,343 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 363 flights under DL 477 in the data flew LAX to FLL. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 363 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking DL 477

For a booking, read DL 477 as 73.3% on time with 0.83% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means Delta Air Lines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures