Flight number record
DL 2547
Delta Air Lines · Grand Rapids to Atlanta
- Route
- GRR → ATL
- Departs
- 12:51
- Flights
- 259
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2547, check with Delta Air Lines.
DL 2547 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 259 flights, with a median arrival 13 minutes early.
Set against the rest of the country, DL 2547's record is 8 points better than the US average of 77.3%. That gap is worth roughly 83 fewer late arrivals for every thousand flights.
Key figures
On time
85.6%
Arrivals under 15 minutes late, of 250 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
2.70%
National rate is 1.89%
1 hour+ late
4.0%
National rate is 8.3%
These figures cover 259 flights between September 2025 and August 2026. The median arrival is 13 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 2547 flies
DL 2547 flies GRR to ATL without a single fixed slot. Its most common scheduled departure was 12:51, used on 44 of 259 flights, with 13:34 (30 flights) next.
- Departs 12:5144 flights17.0%
- Departs 13:3430 flights11.6%
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 12:51 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 2547 runs 7 points better at 85.6%. 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 2547 next to GRR to ATL
Every carrier on GRR to ATL combined arrived on time 86.7% of the time across 1,417 flights, so DL 2547 is about level with it. Delta flew 1,384 flights on the same city pair under all its flight numbers, including this one, and those ran 87.1% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2547thin sample | 259 | 85.6% | 77 min | 2.70% | A |
| All Delta Air Lines on GRR–ATL | 1,384 | 87.1% | 81 min | 1.23% | A |
| All carriers on GRR–ATL | 1,417 | 86.7% | 84 min | 1.27% | A |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2547 quarter by quarter
DL 2547 did not run the same all year. Its best quarter was Apr–Jun 2026 at 94.4% on time and its weakest Jan–Mar 2026 at 71.3%, a swing of 23 points on roughly 86 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.
- Oct–Dec 202516 flights—
- Jan–Mar 202690 flights71.3%
- Apr–Jun 202691 flights94.4%
- Jul–Sep 202662 flights93.3%
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2547 did best on Saturday at 94.6% on time and worst on Monday at 75.7%. Each day rests on about 37 flights, so a gap of 19 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2547 runs when it is late
DL 2547 often beats the schedule: 113 of 250 completed flights, 45%, arrived 15 minutes or more early. The 36 late arrivals split 15 under half an hour, 11 between 30 and 60 minutes, and 10 an hour or more.
- 15+ min early113 flights45.2%
- Within 15 min101 flights40.4%
- 15–29 min late15 flights6.0%
- 30–59 min late11 flights4.4%
- 1–2 hours late3 flights1.2%
- 2+ hours late7 flights2.8%
Scale runs 0% to 100%.
Share of 250 completed flights by arrival against schedule.
6 of 33 late departures made up the time and arrived on time, 18% of them. 9 flights left on time and still arrived late.
The worst days
Worst days for DL 2547
The latest arrival of the period was on 3 March 2026, 7 hours 13 minutes 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 |
|---|---|---|
| 3 March 2026 | 7 hours 13 minutes | Carrier |
| 5 January 2026 | 5 hours 31 minutes | Carrier |
| 24 August 2026 | 5 hours 14 minutes | Carrier |
| 28 April 2026 | 3 hours 9 minutes | Late-arriving aircraft |
| 12 July 2026 | 3 hours 6 minutes | Carrier |
Delay causes
Why DL 2547 runs late
Carrier accounts for 56% of the 2,777 delay minutes carriers reported here, and the remaining four split what is left.
- 56%Carrier
- 30%Late-arriving aircraft
- 12%National Airspace System
- 2%Extreme weather
The largest share of delay minutes, 56%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,545 of the 2,777 delay minutes reported here. The split is drawn from 2,777 delay minutes reported on DL 2547.
Cancellations run at 2.70%, 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 4.0% 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.
The 640 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.
DL 2547 is not only a GRR to ATL flight. It also flew ATL to GRR (255 flights, 88.3% 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. 259 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 GRRthin sample | 255 | 88.3% | 50 min | 2.75% | A |
What to do with this
Booking DL 2547
For a booking, the cancellation rate is the figure to plan around on DL 2547: 2.70% of its 259 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- GRR to ATL, every carrier and departure
- ATL to GRR, the return direction
- Delta Air Lines 2453 on the same route90.3%
- Delta Air Lines 2161 on the same route85.3%
- Delta Air Lines 2058 on the same route85.0%
- 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
- What a cancellation rate actually tells you (and what it hides)
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.