Flight number record

DL 763

Delta Air Lines · Atlanta to Los Angeles

Route: ATL → LAX
Departs: 19:59
Flights: 286
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 763, check with Delta Air Lines.

DL 763 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 286 flights, with a median arrival right on schedule.

The national on-time rate over the same period is 77.6%, so DL 763 runs 7 points behind the country as a whole. Across a thousand flights that is about 73 extra late arrivals.

On time

70.3%

Arrivals under 15 minutes late, of 283 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

1.05%

National rate is 1.81%

1 hour+ late

8.8%

National rate is 8.1%

These figures cover 286 flights between July 2025 and June 2026. Beyond the headline rate, 8.8% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When DL 763 flies

DL 763 flies ATL to LAX without a single fixed slot. Its most common scheduled departure was 19:59, used on 43 of 286 flights, with 20:10 (36 flights) and 19:40 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 19:5943 flights15.0%
Departs 20:1036 flights12.6%
Departs 19:4033 flights11.5%

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 19:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 763 runs 2 points better at 70.3%. 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 763 next to ATL to LAX

Every carrier on ATL to LAX combined arrived on time 78.4% of the time across 5,021 flights, so DL 763 is 8 points behind it. Delta flew 3,849 flights on the same city pair under all its flight numbers, including this one, and those ran 79.6% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 11 points.

DL 763 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 763thin sample	286	70.3%	57 min	1.05%	C
All Delta Air Lines on ATL–LAX	3,849	79.6%	55 min	0.75%	B+
All carriers on ATL–LAX	5,021	78.4%	63 min	0.86%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 763 quarter by quarter

DL 763 did not run the same all year. Its best quarter was Oct–Dec 2025 at 79.5% on time and its weakest Apr–Jun 2026 at 58.2%, a swing of 21 points on roughly 95 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 202592 flights70.3%
Oct–Dec 202579 flights79.5%
Jan–Mar 202624 flights—
Apr–Jun 202691 flights58.2%

Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, DL 763 did best on Wednesday at 78.0% on time and worst on Sunday at 63.4%. Each day rests on about 41 flights, so a gap of 15 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 763 runs late

One category carries most of the weight here. Carrier accounts for 45% of the 4,761 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
45%
Late-arriving aircraft
21%
National Airspace System
20%
Extreme weather
12%
Security
2%

Extreme weather accounts for 12% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.9 times the usual weather exposure. The split is drawn from 4,761 delay minutes reported on DL 763.

Cancellations sit at 1.05% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

8.8% 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 about an hour, which a normal layover absorbs.

At 1,947 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.

The same number turns up on four other city pairs in the data, including DTW to ORF (49), ORF to DTW (49) and ATL to TRI (1), but none flew often enough under DL 763 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to LAX only.

One caution: this is a thin sample. 286 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 763

For a booking, DL 763 is one of the weaker ways to fly ATL to LAX: 8 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

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