Flight number record
DL 2344
Delta Air Lines · Miami to Austin
- Route
- MIA → AUS
- Departs
- 19:15
- Flights
- 284
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2344, check with Delta Air Lines.
DL 2344 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 284 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so DL 2344 runs 8 points behind the country as a whole. Across a thousand flights that is about 79 extra late arrivals.
Key figures
On time
69.4%
Arrivals under 15 minutes late, of 281 completed flights
Avg delay
86 min
Across delayed arrivals only, not all flights
Cancelled
1.06%
National rate is 1.89%
1 hour+ late
12.8%
National rate is 8.3%
These figures cover 284 flights between September 2025 and August 2026. Beyond the headline rate, 12.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 2344 flies
DL 2344 flies MIA to AUS without a single fixed slot. Its most common scheduled departure was 19:15, used on 119 of 284 flights, with 19:05 (57 flights) and 18:59 (55 flights) next.
- Departs 19:15119 flights41.9%
- Departs 19:0557 flights20.1%
- Departs 18:5955 flights19.4%
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 19:15 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 2344 runs level with that at 69.4%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
DL 2344 next to MIA to AUS
Every carrier on MIA to AUS combined arrived on time 72.2% of the time across 2,236 flights, so DL 2344 is 3 points behind it. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2344thin sample | 284 | 69.4% | 86 min | 1.06% | C |
| All Delta Air Lines on MIA–AUSthin sample | 284 | 69.4% | 86 min | 1.06% | C |
| All carriers on MIA–AUS | 2,236 | 72.2% | 70 min | 0.89% | C+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2344 quarter by quarter
Quarter by quarter DL 2344 held fairly steady: 75.6% in Oct–Dec 2025, 67.4% in Jan–Mar 2026, 67.8% in Apr–Jun 2026 and 70.5% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Oct–Dec 202541 flights75.6%
- Jan–Mar 202690 flights67.4%
- Apr–Jun 202691 flights67.8%
- Jul–Sep 202662 flights70.5%
Scale runs 60% to 80%.
By weekday, DL 2344 did best on Thursday at 82.5% on time and worst on Sunday at 46.2%. Each day rests on about 41 flights, so a gap of 36 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2344 runs when it is late
DL 2344 often beats the schedule: 94 of 281 completed flights, 33%, arrived 15 minutes or more early. The 86 late arrivals split 27 under half an hour, 23 between 30 and 60 minutes, and 36 an hour or more.
- 15+ min early94 flights33.5%
- Within 15 min101 flights35.9%
- 15–29 min late27 flights9.6%
- 30–59 min late23 flights8.2%
- 1–2 hours late22 flights7.8%
- 2+ hours late14 flights5.0%
Scale runs 0% to 100%.
Share of 281 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 77 departures that left 15 minutes late or more, only 7 made it up before arrival. In the other direction, 16 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 AUS.
The worst days
Worst days for DL 2344
The latest arrival of the period was on 26 March 2026, 12 hours 1 minute behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 March 2026 | 12 hours 1 minute | Carrier |
| 16 February 2026 | 11 hours 43 minutes | Carrier |
| 19 May 2026 | 6 hours 14 minutes | Carrier |
| 16 March 2026 | 5 hours 9 minutes | Late-arriving aircraft |
| 29 November 2025 | 4 hours 32 minutes | Carrier |
Delay causes
Why DL 2344 runs late
Carrier accounts for 44% of the 7,409 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Carrier
- 41%Late-arriving aircraft
- 12%National Airspace System
- 3%Extreme weather
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,409 reported delay minutes here, that single category outweighs weather by 12 to one. The split is drawn from 7,409 delay minutes reported on DL 2344.
Cancellations sit at 1.06% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
12.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 1,103 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.
Every one of the 284 flights under DL 2344 in the data flew MIA to AUS. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 284 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 2344
For a booking, DL 2344 is a flight to put a long connection behind. 12.8% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- MIA to AUS, every carrier and departure
- AUS to MIA, the return direction
- American Airlines 2629 on the same route71.2%
- Miami International (MIA) 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.