Flight number record
DL 622
Delta Air Lines · Los Angeles to Austin
- Route
- LAX → AUS
- Departs
- 13:10
- Flights
- 344
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 622, check with Delta Air Lines.
DL 622 lands a B+, level with the national rate of 77.3%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 344 flights, with a median arrival 7 minutes early.
Key figures
On time
78.0%
Arrivals under 15 minutes late, of 341 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
0.87%
National rate is 1.89%
1 hour+ late
7.0%
National rate is 8.3%
These figures cover 344 flights between September 2025 and August 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.
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Schedule
When DL 622 flies
DL 622 flies LAX to AUS without a single fixed slot. Its most common scheduled departure was 13:10, used on 43 of 344 flights, with 15:55 (42 flights) next.
- Departs 13:1043 flights12.5%
- Departs 15:5542 flights12.2%
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 13:10 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 622 runs level with that at 78.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 622 next to LAX to AUS
Every carrier on LAX to AUS combined arrived on time 77.0% of the time across 4,077 flights, so DL 622 is about level with it. Delta flew 1,292 flights on the same city pair under all its flight numbers, including this one, and those ran 80.9% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 622thin sample | 344 | 78.0% | 70 min | 0.87% | B+ |
| All Delta Air Lines on LAX–AUS | 1,292 | 80.9% | 66 min | 1.16% | B |
| All carriers on LAX–AUS | 4,077 | 77.0% | 62 min | 0.61% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 622 quarter by quarter
DL 622 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Oct–Dec 2025 at 74.4%, a swing of 19 points on roughly 69 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 202530 flights93.3%
- Oct–Dec 202582 flights74.4%
- Jan–Mar 202679 flights77.6%
- Apr–Jun 202691 flights76.9%
- Jul–Sep 202662 flights77.4%
Scale runs 65% to 100%.
By weekday, DL 622 did best on Wednesday at 87.8% on time and worst on Saturday at 59.0%. Each day rests on about 49 flights, so a gap of 29 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 622 runs when it is late
DL 622 often beats the schedule: 109 of 341 completed flights, 32%, arrived 15 minutes or more early. The 75 late arrivals split 25 under half an hour, 26 between 30 and 60 minutes, and 24 an hour or more.
- 15+ min early109 flights32.0%
- Within 15 min157 flights46.0%
- 15–29 min late25 flights7.3%
- 30–59 min late26 flights7.6%
- 1–2 hours late11 flights3.2%
- 2+ hours late13 flights3.8%
Scale runs 0% to 100%.
Share of 341 completed flights by arrival against schedule.
11 of 77 late departures made up the time and arrived on time, 14% of them. 9 flights left on time and still arrived late.
The worst days
Worst days for DL 622
The latest arrival of the period was on 7 November 2025, 6 hours 27 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 November 2025 | 6 hours 27 minutes | Late-arriving aircraft |
| 17 May 2026 | 4 hours 46 minutes | Late-arriving aircraft |
| 31 July 2026 | 4 hours 43 minutes | Carrier |
| 30 July 2026 | 3 hours 52 minutes | Carrier |
| 29 August 2026 | 3 hours 23 minutes | Carrier |
Delay causes
Why DL 622 runs late
Carrier accounts for 52% of the 5,226 delay minutes carriers reported here, and the remaining four split what is left.
- 52%Carrier
- 41%Late-arriving aircraft
- 8%National Airspace System
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,226 reported delay minutes here, that single category outweighs weather by 41 to one. The split is drawn from 5,226 delay minutes reported on DL 622.
Cancellations are rare at 0.87%, below the national 1.89% 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
7.0% 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 a little over an hour, which a normal layover absorbs.
The 1,242 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.
The same number turns up on one other city pair in the data, including AUS to LAX (43), but none flew often enough under DL 622 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to AUS only.
One caution: this is a thin sample. 344 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 622
For a booking, read DL 622 as 78.0% on time with 0.87% cancelled over 344 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAX to AUS, every carrier and departure
- AUS to LAX, the return direction
- Delta Air Lines 946 on the same route87.7%
- Delta Air Lines 986 on the same route87.1%
- Los Angeles International (LAX) delay statistics
- Austin-Bergstrom International (AUS) 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
- Why the first flight of the morning is statistically safest
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.