Flight number record
DL 2453
Delta Air Lines · Grand Rapids to Atlanta
- Route
- GRR → ATL
- Departs
- 06:05
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2453, check with Delta Air Lines.
DL 2453 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 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 365 flights, with a median arrival 17 minutes early.
Set against the rest of the country, DL 2453's record is 13 points better than the US average of 77.3%. That gap is worth roughly 130 fewer late arrivals for every thousand flights.
Key figures
On time
90.3%
Arrivals under 15 minutes late, of 360 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
1.10%
National rate is 1.89%
1 hour+ late
2.8%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 17 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 2453 flies
DL 2453 flies GRR to ATL without a single fixed slot. Its most common scheduled departure was 06:05, used on 106 of 365 flights, with 06:00 (93 flights) and 06:10 (72 flights) next.
- Departs 06:05106 flights29.0%
- Departs 06:0093 flights25.5%
- Departs 06:1072 flights19.7%
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 06:05 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2453 runs level with that at 90.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
DL 2453 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 2453 is 4 points ahead of 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 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2453 | 365 | 90.3% | 60 min | 1.10% | 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 2453 quarter by quarter
DL 2453 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Oct–Dec 2025 at 81.5%, a swing of 19 points on roughly 73 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 flights100.0%
- Oct–Dec 202592 flights81.5%
- Jan–Mar 202690 flights85.2%
- Apr–Jun 202691 flights95.5%
- Jul–Sep 202662 flights98.4%
Scale runs 75% to 100%.
By weekday, DL 2453 ranged from 86.3% on Monday to 92.3% on Friday. With about 52 flights behind each day, a spread of 6 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 2453 runs when it is late
DL 2453 often beats the schedule: 212 of 360 completed flights, 59%, arrived 15 minutes or more early. The 35 late arrivals split 12 under half an hour, 13 between 30 and 60 minutes, and 10 an hour or more.
- 15+ min early212 flights58.9%
- Within 15 min113 flights31.4%
- 15–29 min late12 flights3.3%
- 30–59 min late13 flights3.6%
- 1–2 hours late6 flights1.7%
- 2+ hours late4 flights1.1%
Scale runs 0% to 100%.
Share of 360 completed flights by arrival against schedule.
3 of 22 late departures made up the time and arrived on time, 14% of them. 16 flights left on time and still arrived late.
The worst days
Worst days for DL 2453
The latest arrival of the period was on 1 December 2025, 4 hours 28 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Four of the five worst days fell in December 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 1 December 2025 | 4 hours 28 minutes | Carrier |
| 11 December 2025 | 3 hours 35 minutes | Carrier |
| 9 March 2026 | 3 hours 5 minutes | Carrier |
| 7 December 2025 | 2 hours 42 minutes | National Airspace System |
| 8 December 2025 | 1 hour 50 minutes | Carrier |
Delay causes
Why DL 2453 runs late
Carrier accounts for 61% of the 2,099 delay minutes carriers reported here, and the remaining four split what is left.
- 61%Carrier
- 31%National Airspace System
- 8%Extreme weather
The largest share of delay minutes, 61%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,282 of the 2,099 delay minutes reported here. The split is drawn from 2,099 delay minutes reported on DL 2453.
Cancellations sit at 1.10% against a national 1.89%, which is ordinary. Diversions add another 0.27%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.8% 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.
Every one of the 365 flights under DL 2453 in the data flew GRR to ATL. 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. 365 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 2453
For a booking, DL 2453 has one of the better records a US domestic flight can show: 90.3% on time and 1.10% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- GRR to ATL, every carrier and departure
- ATL to GRR, the return direction
- Delta Air Lines 2161 on the same route85.3%
- Delta Air Lines 2058 on the same route85.0%
- Delta Air Lines 2547 on the same route85.6%
- 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
- 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.