Flight number record

DL 948

Delta Air Lines · Dallas-Fort Worth to Los Angeles

Route: DFW → LAX
Departs: 16:20
Flights: 295
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 948, check with Delta Air Lines.

DL 948 lands a B+, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 295 flights, with a median arrival 9 minutes early.

Set against the rest of the country, DL 948's record is 6 points better than the US average of 77.6%. That gap is worth roughly 63 fewer late arrivals for every thousand flights.

On time

83.9%

Arrivals under 15 minutes late, of 292 completed flights

Avg delay

100 min

Across delayed arrivals only, not all flights

Cancelled

0.68%

National rate is 1.81%

1 hour+ late

8.6%

National rate is 8.1%

These figures cover 295 flights between July 2025 and June 2026. Beyond the headline rate, 8.6% 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 948 flies

DL 948 flies DFW to LAX without a single fixed slot. Its most common scheduled departure was 16:20, used on 97 of 295 flights, with 16:10 (50 flights) and 16:00 (47 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:2097 flights32.9%
Departs 16:1050 flights16.9%
Departs 16:0047 flights15.9%

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 16:20 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 948 runs 12 points better at 83.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 948 next to DFW to LAX

Every carrier on DFW to LAX combined arrived on time 72.1% of the time across 6,238 flights, so DL 948 is 12 points ahead of it. Delta flew 718 flights on the same city pair under all its flight numbers, including this one, and those ran 87.9% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 2 points.

DL 948 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 948thin sample	295	83.9%	100 min	0.68%	B+
All Delta Air Lines on DFW–LAX	718	87.9%	106 min	1.95%	A
All carriers on DFW–LAX	6,238	72.1%	70 min	2.34%	C
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 948 quarter by quarter

DL 948 did not run the same all year. Its best quarter was Jan–Mar 2026 at 91.3% on time and its weakest Apr–Jun 2026 at 73.4%, a swing of 18 points on roughly 74 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 flights82.4%
Oct–Dec 202592 flights89.0%
Jan–Mar 202646 flights91.3%
Apr–Jun 202665 flights73.4%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 948 ranged from 79.1% on Sunday to 87.8% on Wednesday. With about 42 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 948 runs late

One category carries most of the weight here. Carrier accounts for 45% of the 4,707 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
33%
Extreme weather
11%
National Airspace System
11%

Extreme weather accounts for 11% 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 1.8 times the usual weather exposure. The split is drawn from 4,707 delay minutes reported on DL 948.

Cancellations are rare at 0.68%, 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

8.6% 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 close to two hours, which a normal layover absorbs.

The 1,235 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The same number turns up on one other city pair in the data, including LAX to DFW (3), but none flew often enough under DL 948 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DFW to LAX only.

One caution: this is a thin sample. 295 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 948

For a booking, read DL 948 as 83.9% on time with 0.68% cancelled over 295 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