Flight number record
DL 392
Delta Air Lines · Los Angeles to Washington
- Route
- LAX → DCA
- Departs
- 07:35
- Flights
- 362
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That rests on 362 flights, with a median arrival 6 minutes early.
Key figures
On time
80.4%
Arrivals under 15 minutes late, of 352 completed flights
Avg delay
101 min
Across delayed arrivals only, not all flights
Cancelled
2.21%
National rate is 1.89%
1 hour+ late
7.7%
National rate is 8.3%
These figures cover 362 flights between September 2025 and August 2026. The median arrival is 6 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When DL 392 flies
DL 392 flies LAX to DCA without a single fixed slot. Its most common scheduled departure was 07:35, used on 82 of 362 flights, with 07:50 (71 flights) and 07:43 (62 flights) next.
- Departs 07:3582 flights22.7%
- Departs 07:5071 flights19.6%
- Departs 07:4362 flights17.1%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 07:35 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 9 points worse at 80.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
DL 392 next to LAX to DCA
Every carrier on LAX to DCA combined arrived on time 79.9% of the time across 1,454 flights, so DL 392 is about level with it. Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 392thin sample | 362 | 80.4% | 101 min | 2.21% | B |
| All Delta Air Lines on LAX–DCAthin sample | 362 | 80.4% | 101 min | 2.21% | B |
| All carriers on LAX–DCA | 1,454 | 79.9% | 75 min | 1.31% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 392 quarter by quarter
Quarter by quarter DL 392 held fairly steady: 82.0% in Oct–Dec 2025, 78.7% in Jan–Mar 2026, 80.2% in Apr–Jun 2026 and 78.0% in Jul–Sep 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 202530 flights—
- Oct–Dec 202590 flights82.0%
- Jan–Mar 202690 flights78.7%
- Apr–Jun 202691 flights80.2%
- Jul–Sep 202661 flights78.0%
Scale runs 70% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, DL 392 did best on Wednesday at 88.0% on time and worst on Sunday at 72.5%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 392 runs when it is late
DL 392 often beats the schedule: 114 of 352 completed flights, 32%, arrived 15 minutes or more early. The 69 late arrivals split 23 under half an hour, 19 between 30 and 60 minutes, and 27 an hour or more.
- 15+ min early114 flights32.4%
- Within 15 min169 flights48.0%
- 15–29 min late23 flights6.5%
- 30–59 min late19 flights5.4%
- 1–2 hours late8 flights2.3%
- 2+ hours late19 flights5.4%
Scale runs 0% to 100%.
Share of 352 completed flights by arrival against schedule.
6 of 41 late departures made up the time and arrived on time, 15% of them. In the other direction, 34 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DCA.
The worst days
Worst days for DL 392
The latest arrival of the period was on 5 June 2026, 10 hours 50 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 June 2026 | 10 hours 50 minutes | Carrier |
| 24 December 2025 | 6 hours 51 minutes | Carrier |
| 12 February 2026 | 6 hours 35 minutes | Carrier |
| 2 April 2026 | 6 hours 19 minutes | Carrier |
| 12 June 2026 | 5 hours 20 minutes | Carrier |
Delay causes
Why DL 392 runs late
Carrier accounts for 83% of the 6,952 delay minutes carriers reported here, and the remaining four split what is left.
- 83%Carrier
- 16%National Airspace System
- 1%Late-arriving aircraft
The largest share of delay minutes, 83%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 5,770 of the 6,952 delay minutes reported here. The split is drawn from 6,952 delay minutes reported on DL 392.
Cancellations sit at 2.21% against a national 1.89%, which is ordinary. Diversions add another 0.55%.
Connections and routes
What a delay on this flight costs
7.7% of arrivals land an hour or more late, close to the national 8.3%, so 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 (116), 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. 362 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 80.4% on time with 2.21% cancelled over 362 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAX to DCA, every carrier and departure
- DCA to LAX, the return direction
- Alaska Airlines 6 on the same route78.4%
- Los Angeles International (LAX) delay statistics
- Ronald Reagan Washington National (DCA) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.