Flight number record
DL 837
Delta Air Lines · Atlanta to Honolulu
- Route
- ATL → HNL
- Departs
- 09:50
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 837, check with Delta Air Lines.
DL 837 lands a B+, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about 45 minutes on average. That rests on 365 flights, with a median arrival 4 minutes early.
Key figures
On time
79.8%
Arrivals under 15 minutes late, of 361 completed flights
Avg delay
46 min
Across delayed arrivals only, not all flights
Cancelled
0.55%
National rate is 1.89%
1 hour+ late
3.6%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 4 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 837 flies
DL 837 flies ATL to HNL without a single fixed slot. Its most common scheduled departure was 09:50, used on 153 of 365 flights, with 09:55 (83 flights) and 09:54 (60 flights) next.
- Departs 09:50153 flights41.9%
- Departs 09:5583 flights22.7%
- Departs 09:5460 flights16.4%
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 09:50 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 837 runs 4 points worse at 79.8%. 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 837 next to ATL to HNL
Every carrier on ATL to HNL combined arrived on time 78.4% of the time across 383 flights, so DL 837 is about level with it. Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 837 | 365 | 79.8% | 46 min | 0.55% | B+ |
| All Delta Air Lines on ATL–HNL | 383 | 78.4% | 45 min | 0.52% | B+ |
| All carriers on ATL–HNL | 383 | 78.4% | 45 min | 0.52% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 837 quarter by quarter
DL 837 did not run the same all year. Its best quarter was Jan–Mar 2026 at 87.5% on time and its weakest Jul–Sep 2025 at 70.0%, a swing of 18 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 flights70.0%
- Oct–Dec 202592 flights84.6%
- Jan–Mar 202690 flights87.5%
- Apr–Jun 202691 flights76.7%
- Jul–Sep 202662 flights71.0%
Scale runs 60% to 95%.
By weekday, DL 837 did best on Wednesday at 86.5% on time and worst on Saturday at 71.2%. Each day rests on about 52 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 837 runs when it is late
DL 837 often beats the schedule: 104 of 361 completed flights, 29%, arrived 15 minutes or more early. Most of the lateness is short. 38 of the 73 late arrivals were under half an hour behind, and 13 reached an hour or more.
- 15+ min early104 flights28.8%
- Within 15 min184 flights51.0%
- 15–29 min late38 flights10.5%
- 30–59 min late22 flights6.1%
- 1–2 hours late6 flights1.7%
- 2+ hours late7 flights1.9%
Scale runs 0% to 100%.
Share of 361 completed flights by arrival against schedule.
A late pushback is often recovered here: of 89 departures that left 15 minutes late or more, 35 still arrived on time. In the other direction, 19 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 HNL.
The worst days
Worst days for DL 837
The latest arrival of the period was on 12 June 2026, 3 hours 46 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 |
|---|---|---|
| 12 June 2026 | 3 hours 46 minutes | Carrier |
| 21 May 2026 | 3 hours 2 minutes | Carrier |
| 13 January 2026 | 2 hours 39 minutes | Carrier |
| 27 January 2026 | 2 hours 19 minutes | Carrier |
| 22 September 2025 | 2 hours 14 minutes | Carrier |
Delay causes
Why DL 837 runs late
Carrier accounts for 72% of the 3,323 delay minutes carriers reported here, and the remaining four split what is left.
- 72%Carrier
- 23%National Airspace System
- 3%Extreme weather
- 2%Late-arriving aircraft
The largest share of delay minutes, 72%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,388 of the 3,323 delay minutes reported here. The split is drawn from 3,323 delay minutes reported on DL 837.
Cancellations are rare at 0.55%, 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 3.6% 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.
At 4,502 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
Every one of the 365 flights under DL 837 in the data flew ATL to HNL. 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 837
For a booking, read DL 837 as 79.8% on time with 0.55% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Daniel K. Inouye International (HNL) 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.