Carrier route record
DLSLC→HNL
Delta Air Lines · Salt Lake City to Honolulu
- Flights
- 492
- Period
- September 2025 to August 2026
- Share of route
- 57%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Delta Air Lines.
Delta on SLC to HNL lands a B−, 4 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 a little over an hour on average. That rests on 492 flights, with a median arrival 6 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Delta on SLC to HNL from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.9%
Arrivals under 15 minutes late, of 477 completed flights
Avg delay
74 min
Across delayed arrivals only, not all flights
Cancelled
3.05%
National rate is 1.89%
Whole route
75.6%
Every carrier on SLC to HNL, 858 flights
These figures cover 492 flights between September 2025 and August 2026. The median arrival is 6 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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Carrier by carrier
Delta against every carrier on SLC to HNL
Delta flew 492 of the 858 flights on SLC to HNL, most of the route. Its 80.9% on time is 5 points better than the route as a whole, which runs 75.6%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Delta at 80.9% to Alaska at 63.3%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines (this page) | 492 | 80.9% | 74 min | 3.05% | B− |
| Hawaiian Airlinesthin sample | 122 | 78.7% | 176 min | 0.00% | B+ |
| Alaska Airlinesthin sample | 244 | 63.3% | 58 min | 1.23% | D |
Flight by flight
Delta flight numbers on SLC to HNL
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.
Departure window
When Delta runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 492 flights.
- 5am–8am—
- 8am–11am161 flights84.4%
- 11am–2pm331 flights79.2%
- 2pm–5pm—
- 5pm–8pm—
- 8pm–5am—
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 79.2% on time against 84.4% for 8am–11am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 11am–2pm window is the busiest, with 331 flights scheduled in it.
Across the year
Delta on SLC to HNL through the year
February is the weak month at 63.0% on time, against 91.3% in November. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 60 flights.
Across the week, Thursday is the strongest day at 85.9% on time and Saturday the weakest at 74.0%, a spread of 12 points.
Arrival by arrival
How late Delta on SLC to HNL runs when it is late
Delta on SLC to HNL often beats the schedule: 165 of 477 completed flights, 35%, arrived 15 minutes or more early. The 91 late arrivals split 39 under half an hour, 20 between 30 and 60 minutes, and 32 an hour or more.
- 15+ min early165 flights34.6%
- Within 15 min221 flights46.3%
- 15–29 min late39 flights8.2%
- 30–59 min late20 flights4.2%
- 1–2 hours late19 flights4.0%
- 2+ hours late13 flights2.7%
Scale runs 0% to 100%.
Share of 477 completed flights by arrival against schedule.
15 of 64 late departures made up the time and arrived on time, 23% of them. In the other direction, 42 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 Delta on SLC to HNL
The latest arrival of the period was on 13 February 2026, 20 hours 39 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 |
|---|---|---|
| 13 February 2026 | 20 hours 39 minutes | Carrier |
| 23 October 2025 | 5 hours 59 minutes | Carrier |
| 26 May 2026 | 4 hours 44 minutes | Carrier |
| 28 February 2026 | 4 hours 6 minutes | Carrier |
| 23 November 2025 | 3 hours 44 minutes | Carrier |
Delay causes
Why Delta runs late on this route
Carrier accounts for 68% of the 6,735 delay minutes carriers reported here, and the remaining four split what is left.
- 68%Carrier
- 21%National Airspace System
- 10%Late-arriving aircraft
- 1%Extreme weather
The largest share of delay minutes, 68%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,581 of the 6,735 delay minutes reported here. The split is drawn from 6,735 reported delay minutes.
Cancellations run at 3.05%, against 1.89% nationally. That is roughly one flight in 30 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 stage length
What a delay here costs
6.7% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 2,994 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.
The return leg runs 83.8% on time across 492 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 492 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 Delta on SLC to HNL
Put together: the delay figures matter less here than the 3.05% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 477 completed flights over 12 months sit behind that.
Related
Where to go next
- SLC to HNL, every carrier
- Delta on HNL to SLC, the return leg
- Hawaiian Airlines on SLC to HNL78.7%
- Alaska Airlines on SLC to HNL63.3%
- Delta Air Lines network-wide record
- Salt Lake City International (SLC) delay statistics
- Daniel K. Inouye International (HNL) delay statistics
- The US routes with the most cancellations
- What a cancellation rate actually tells you (and what it hides)
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.