Carrier route record

DLDFW→LAX

Delta Air Lines · Dallas-Fort Worth to Los Angeles

Flights: 718
Period: July 2025 to June 2026
Share of route: 12%
Carriers: 4

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

Delta on DFW to LAX earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 718 flights. The strongest carrier on the route with a full sample, Spirit Airlines, flew 505 at 80.2% on time.

Set against the rest of the country, Delta's DFW to LAX record is 10 points better than the US average of 77.6%. That gap is worth roughly 103 fewer late arrivals for every thousand flights.

On time

87.9%

Arrivals under 15 minutes late, of 703 completed flights

Avg delay

106 min

Across delayed arrivals only, not all flights

Cancelled

1.95%

National rate is 1.81%

Whole route

72.1%

Every carrier on DFW to LAX, 6,238 flights

These figures cover 718 flights between July 2025 and June 2026. The median arrival is 9 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.

Carrier by carrier

Delta against every carrier on DFW to LAX

Delta flew 718 of the 6,238 flights on DFW to LAX, about 12% of it. Its 87.9% on time is 16 points better than the route as a whole, which runs 72.1%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from Delta at 87.9% to American at 68.3%.

The choice of carrier is not cosmetic here. Spirit Airlines arrives on time 80.2% of the time; American Airlines manages 68.3%. Sample sizes sit next to every figure, because a two-point gap across 4,568 flights means less than a ten-point one.

On-time performance by carrier on DFW to LAX
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines (this page)	718	87.9%	106 min	1.95%	A
Spirit Airlines	505	80.2%	66 min	2.77%	B
Frontier Airlines	447	76.0%	75 min	0.89%	B+
American Airlines	4,568	68.3%	68 min	2.50%	C

Spirit leads American by 12 points. Real, but small enough that a better departure time on the weaker carrier can outweigh it.

Flight by flight

Delta flight numbers on DFW to LAX

Departure window

When Delta runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 718 flights.

5am–8am365 flights92.1%
8am–11am—
11am–2pm—
2pm–5pm348 flights84.0%
5pm–8pm—
8pm–5am5 flights—

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 92.1% of the time, against 84.0% for the afternoon window. That is 8 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 365 flights scheduled in it.

Across the year

Delta on DFW to LAX through the year

Darker means more delays. Figures are on-time percentages.March best, June worst

June is the worst month at 78.3% on time, 18 points below March, the best at 96.6%. 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. May was the busiest month here, with 62 flights.

Across the week, Thursday is the strongest day at 90.3% on time and Sunday the weakest at 86.0%. 4 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Delta runs late on this route

One category carries most of the weight here. Carrier accounts for 50% of the 9,002 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
50%
Late-arriving aircraft
27%
Extreme weather
14%
National Airspace System
9%

Extreme weather accounts for 14% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.2 times the usual weather exposure. The split is drawn from 9,002 reported delay minutes.

The largest share of delay minutes, 50%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 4,462 of the 9,002 delay minutes reported here.

Cancellations sit at 1.95% against a national 1.81%, which is ordinary. Diversions add another 0.14%.

Connections and stage length

What a delay here costs

6.4% 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 return leg is a different operation and performs like one: it runs 83.6% on time across 718 flights, 4 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.

One caution: this is a thin sample. 718 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 Delta on DFW to LAX

Put together: treat all of this as provisional. 718 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 87.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 703 completed flights over 12 months sit behind that.

Where to go next

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