Flight number record
DL 3164
Delta Air Lines · Birmingham to Atlanta
- Route
- BHM → ATL
- Departs
- 10:47
- Flights
- 267
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 3164, check with Delta Air Lines.
DL 3164 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 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 267 flights, with a median arrival 14 minutes early.
Set against the rest of the country, DL 3164's record is 15 points better than the US average of 77.3%. That gap is worth roughly 154 fewer late arrivals for every thousand flights.
Key figures
On time
92.7%
Arrivals under 15 minutes late, of 260 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
2.62%
National rate is 1.89%
1 hour+ late
2.7%
National rate is 8.3%
These figures cover 267 flights between September 2025 and August 2026. The median arrival is 14 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 3164 flies
DL 3164 flies BHM to ATL without a single fixed slot. Its most common scheduled departure was 10:47, used on 50 of 267 flights, with 10:42 (49 flights) and 11:02 (48 flights) next.
- Departs 10:4750 flights18.7%
- Departs 10:4249 flights18.4%
- Departs 11:0248 flights18.0%
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 10:47 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 3164 runs 9 points better at 92.7%. 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 3164 next to BHM to ATL
Every carrier on BHM to ATL combined arrived on time 87.2% of the time across 3,371 flights, so DL 3164 is 6 points ahead of it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 3164thin sample | 267 | 92.7% | 60 min | 2.62% | A |
| All Delta Air Lines on BHM–ATL | 3,371 | 87.2% | 83 min | 1.72% | A |
| All carriers on BHM–ATL | 3,371 | 87.2% | 83 min | 1.72% | A |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 3164 quarter by quarter
Quarter by quarter DL 3164 held fairly steady: 95.5% in Jan–Mar 2026, 93.2% in Apr–Jun 2026 and 92.9% in Jul–Sep 2026. A spread of 3 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Oct–Dec 202530 flights—
- Jan–Mar 202690 flights95.5%
- Apr–Jun 202691 flights93.2%
- Jul–Sep 202656 flights92.9%
Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 3164 did best on Wednesday at 100.0% on time and worst on Monday at 80.6%. Each day rests on about 38 flights, so a gap of 19 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 3164 runs when it is late
DL 3164 often beats the schedule: 125 of 260 completed flights, 48%, arrived 15 minutes or more early. Most of the lateness is short. 11 of the 19 late arrivals were under half an hour behind, and 7 reached an hour or more.
- 15+ min early125 flights48.1%
- Within 15 min116 flights44.6%
- 15–29 min late11 flights4.2%
- 30–59 min late1 flights0.4%
- 1–2 hours late5 flights1.9%
- 2+ hours late2 flights0.8%
Scale runs 0% to 100%.
Share of 260 completed flights by arrival against schedule.
A late pushback is often recovered here: of 31 departures that left 15 minutes late or more, 13 still arrived on time. Only 1 left on time and still arrived late.
The worst days
Worst days for DL 3164
The latest arrival of the period was on 16 March 2026, 3 hours 38 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across March, August, January and May, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 March 2026 | 3 hours 38 minutes | Late-arriving aircraft |
| 4 August 2026 | 2 hours 3 minutes | National Airspace System |
| 10 August 2026 | 1 hour 56 minutes | Carrier |
| 5 January 2026 | 1 hour 49 minutes | Late-arriving aircraft |
| 11 May 2026 | 1 hour 44 minutes | Carrier |
Delay causes
Why DL 3164 runs late
Late-arriving aircraft accounts for 53% of the 1,131 delay minutes carriers reported here, and the remaining four split what is left.
- 53%Late-arriving aircraft
- 25%National Airspace System
- 22%Carrier
53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,131 reported delay minutes here, that single category outweighs weather by 53 to one. The split is drawn from 1,131 delay minutes reported on DL 3164.
Cancellations run at 2.62%, against 1.89% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.7% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
DL 3164 is not only a BHM to ATL flight. It also flew ATL to BHM (264 flights, 89.8% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 267 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| ATL to BHMthin sample | 264 | 89.8% | 40 min | 3.03% | A− |
What to do with this
Booking DL 3164
For a booking, the cancellation rate is the figure to plan around on DL 3164: 2.62% of its 267 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- BHM to ATL, every carrier and departure
- ATL to BHM, the return direction
- Delta Air Lines 1618 on the same route88.0%
- Delta Air Lines 3012 on the same route86.5%
- Delta Air Lines 1369 on the same route87.5%
- Delta Air Lines 3100 on the same route93.8%
- Delta Air Lines 2484 on the same route79.4%
- Delta Air Lines 2162 on the same route94.3%
- Hartsfield-Jackson Atlanta International (ATL) 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.