Flight number record

DL 392

Delta Air Lines · Los Angeles to Washington

Route: LAX → DCA
Departs: 07:50
Flights: 363
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 392, check with Delta Air Lines.

DL 392 lands a B, 3 points better than the national rate of 77.6%. About one flight in five 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 363 flights, with a median arrival 7 minutes early.

On time

81.0%

Arrivals under 15 minutes late, of 352 completed flights

Avg delay

100 min

Across delayed arrivals only, not all flights

Cancelled

1.93%

National rate is 1.81%

1 hour+ late

7.1%

National rate is 8.1%

These figures cover 363 flights between July 2025 and June 2026. The median arrival is 7 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.

Schedule

When DL 392 flies

DL 392 flies LAX to DCA without a single fixed slot. Its most common scheduled departure was 07:50, used on 97 of 363 flights, with 07:43 (62 flights) and 07:59 (58 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:5097 flights26.7%
Departs 07:4362 flights17.1%
Departs 07:5958 flights16.0%

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 07:50 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 392 runs 8 points worse at 81.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

DL 392 next to LAX to DCA

Every carrier on LAX to DCA combined arrived on time 80.1% of the time across 1,457 flights, so DL 392 is about level with it. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 392 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 392thin sample	363	81.0%	100 min	1.93%	B
All Delta Air Lines on LAX–DCAthin sample	363	81.0%	100 min	1.93%	B
All carriers on LAX–DCA	1,457	80.1%	77 min	1.24%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 392 quarter by quarter

Quarter by quarter DL 392 held fairly steady: 83.0% in Jul–Sep 2025, 82.0% in Oct–Dec 2025, 78.7% in Jan–Mar 2026 and 80.2% in Apr–Jun 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights83.0%
Oct–Dec 202590 flights82.0%
Jan–Mar 202690 flights78.7%
Apr–Jun 202691 flights80.2%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 392 ranged from 74.5% on Sunday to 86.3% on Saturday. With about 52 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 392 runs late

One category carries most of the weight here. Carrier accounts for 83% of the 6,724 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
83%
National Airspace System
16%
Late-arriving aircraft
1%

The largest share of delay minutes, 83%, 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 5,589 of the 6,724 delay minutes reported here. The split is drawn from 6,724 delay minutes reported on DL 392.

Cancellations sit at 1.93% against a national 1.81%, which is ordinary. Diversions add another 1.10%.

Connections and routes

What a delay on this flight costs

7.1% 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 close to two hours, which a normal layover absorbs.

At 2,311 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 one other city pair in the data, including DCA to LAX (91), but none flew often enough under DL 392 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to DCA only.

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 392

For a booking, read DL 392 as 81.0% on time with 1.93% 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