Flight number record
DL 2734
Delta Air Lines · Cleveland to Atlanta
- Route
- CLE → ATL
- Departs
- 06:00
- Flights
- 354
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2734, check with Delta Air Lines.
DL 2734 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 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 354 flights, with a median arrival 16 minutes early.
Set against the rest of the country, DL 2734's record is 14 points better than the US average of 77.3%. That gap is worth roughly 142 fewer late arrivals for every thousand flights.
Key figures
On time
91.5%
Arrivals under 15 minutes late, of 352 completed flights
Avg delay
114 min
Across delayed arrivals only, not all flights
Cancelled
0.56%
National rate is 1.89%
1 hour+ late
3.7%
National rate is 8.3%
These figures cover 354 flights between September 2025 and August 2026. The median arrival is 16 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 2734 flies
DL 2734 flies CLE to ATL without a single fixed slot. Its most common scheduled departure was 06:00, used on 222 of 354 flights, with 05:35 (49 flights) next.
- Departs 06:00222 flights62.7%
- Departs 05:3549 flights13.8%
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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2734 runs 2 points better at 91.5%. 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 2734 next to CLE to ATL
Every carrier on CLE to ATL combined arrived on time 84.6% of the time across 3,398 flights, so DL 2734 is 7 points ahead of it. Delta flew 2,680 flights on the same city pair under all its flight numbers, including this one, and those ran 88.3% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2734thin sample | 354 | 91.5% | 114 min | 0.56% | A+ |
| All Delta Air Lines on CLE–ATL | 2,680 | 88.3% | 75 min | 1.94% | A |
| All carriers on CLE–ATL | 3,398 | 84.6% | 77 min | 2.03% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2734 quarter by quarter
Quarter by quarter DL 2734 held fairly steady: 96.7% in Jul–Sep 2025, 87.0% in Oct–Dec 2025, 88.6% in Jan–Mar 2026, 95.3% in Apr–Jun 2026 and 94.7% in Jul–Sep 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights96.7%
- Oct–Dec 202592 flights87.0%
- Jan–Mar 202690 flights88.6%
- Apr–Jun 202685 flights95.3%
- Jul–Sep 202657 flights94.7%
Scale runs 80% to 100%.
By weekday, DL 2734 ranged from 87.8% on Sunday to 96.2% on Wednesday. With about 51 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 2734 runs when it is late
DL 2734 often beats the schedule: 199 of 352 completed flights, 57%, arrived 15 minutes or more early. The 30 late arrivals split 12 under half an hour, 5 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early199 flights56.5%
- Within 15 min123 flights34.9%
- 15–29 min late12 flights3.4%
- 30–59 min late5 flights1.4%
- 1–2 hours late6 flights1.7%
- 2+ hours late7 flights2.0%
Scale runs 0% to 100%.
Share of 352 completed flights by arrival against schedule.
A late pushback is often recovered here: of 30 departures that left 15 minutes late or more, 10 still arrived on time. 10 flights left on time and still arrived late.
The worst days
Worst days for DL 2734
The latest arrival of the period was on 23 October 2025, 19 hours 54 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 October 2025 | 19 hours 54 minutes | Carrier |
| 11 November 2025 | 4 hours 28 minutes | Carrier |
| 20 January 2026 | 3 hours 48 minutes | Carrier |
| 24 January 2026 | 3 hours 43 minutes | Carrier |
| 22 March 2026 | 3 hours 32 minutes | Carrier |
Delay causes
Why DL 2734 runs late
Carrier accounts for 86% of the 3,418 delay minutes carriers reported here, and the remaining four split what is left.
- 86%Carrier
- 11%National Airspace System
- 4%Extreme weather
The largest share of delay minutes, 86%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,925 of the 3,418 delay minutes reported here. The split is drawn from 3,418 delay minutes reported on DL 2734.
Cancellations are rare at 0.56%, 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
Badly late arrivals are rare here: only 3.7% 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.
The 554 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 354 flights under DL 2734 in the data flew CLE 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. 354 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 2734
For a booking, DL 2734 has one of the better records a US domestic flight can show: 91.5% on time and 0.56% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- CLE to ATL, every carrier and departure
- ATL to CLE, the return direction
- Delta Air Lines 775 on the same route87.1%
- Delta Air Lines 2545 on the same route85.5%
- Delta Air Lines 2838 on the same route91.8%
- Frontier Airlines 2409 on the same route72.1%
- Delta Air Lines 1500 on the same route89.0%
- Cleveland Hopkins International (CLE) delay statistics
- 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.