Flight number record
DL 1314
Delta Air Lines · San Jose to Salt Lake City
- Route
- SJC → SLC
- Departs
- 06:00
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1314, check with Delta Air Lines.
DL 1314 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 17 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 365 flights, with a median arrival 18 minutes early.
Set against the rest of the country, DL 1314's record is 17 points better than the US average of 77.3%. That gap is worth roughly 174 fewer late arrivals for every thousand flights.
Key figures
On time
94.7%
Arrivals under 15 minutes late, of 359 completed flights
Avg delay
118 min
Across delayed arrivals only, not all flights
Cancelled
1.37%
National rate is 1.89%
1 hour+ late
2.2%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 18 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 1314 flies
DL 1314 flies SJC to SLC without a single fixed slot. Its most common scheduled departure was 06:00, used on 177 of 365 flights, with 05:55 (85 flights) and 05:45 (65 flights) next.
- Departs 06:00177 flights48.5%
- Departs 05:5585 flights23.3%
- Departs 05:4565 flights17.8%
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 1314 runs 5 points better at 94.7%. 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 1314 next to SJC to SLC
Every carrier on SJC to SLC combined arrived on time 91.9% of the time across 1,794 flights, so DL 1314 is 3 points ahead of it. Delta flew 924 flights on the same city pair under all its flight numbers, including this one, and those ran 93.2% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 14 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1314 | 365 | 94.7% | 118 min | 1.37% | A |
| All Delta Air Lines on SJC–SLC | 924 | 93.2% | 86 min | 0.54% | A+ |
| All carriers on SJC–SLC | 1,794 | 91.9% | 77 min | 0.39% | A+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1314 quarter by quarter
Quarter by quarter DL 1314 held fairly steady: 90.0% in Jul–Sep 2025, 96.6% in Oct–Dec 2025, 96.6% in Jan–Mar 2026, 92.3% in Apr–Jun 2026 and 95.1% in Jul–Sep 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights90.0%
- Oct–Dec 202592 flights96.6%
- Jan–Mar 202690 flights96.6%
- Apr–Jun 202691 flights92.3%
- Jul–Sep 202662 flights95.1%
Scale runs 80% to 100%.
By weekday, DL 1314 ranged from 90.2% on Friday to 98.0% on Saturday. With about 52 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 1314 runs when it is late
DL 1314 often beats the schedule: 215 of 359 completed flights, 60%, arrived 15 minutes or more early. The 19 late arrivals split 6 under half an hour, 5 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early215 flights59.9%
- Within 15 min125 flights34.8%
- 15–29 min late6 flights1.7%
- 30–59 min late5 flights1.4%
- 1–2 hours late1 flights0.3%
- 2+ hours late7 flights1.9%
Scale runs 0% to 100%.
Share of 359 completed flights by arrival against schedule.
5 of 23 late departures made up the time and arrived on time, 22% of them. Only 1 left on time and still arrived late.
The worst days
Worst days for DL 1314
The latest arrival of the period was on 17 November 2025, 7 hours 32 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 November 2025 | 7 hours 32 minutes | Late-arriving aircraft |
| 13 May 2026 | 6 hours 9 minutes | Carrier |
| 26 July 2026 | 5 hours 26 minutes | Carrier |
| 6 March 2026 | 3 hours 34 minutes | Carrier |
| 12 June 2026 | 3 hours 11 minutes | Late-arriving aircraft |
Delay causes
Why DL 1314 runs late
Carrier accounts for 63% of the 2,250 delay minutes carriers reported here, and the remaining four split what is left.
- 63%Carrier
- 35%Late-arriving aircraft
- 1%National Airspace System
- 1%Extreme weather
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,250 reported delay minutes here, that single category outweighs weather by 35 to one. The split is drawn from 2,250 delay minutes reported on DL 1314.
Cancellations sit at 1.37% 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 2.2% 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 584 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 1314 in the data flew SJC to SLC. 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 1314
For a booking, DL 1314 has one of the better records a US domestic flight can show: 94.7% on time and 1.37% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SJC to SLC, every carrier and departure
- SLC to SJC, the return direction
- Norman Y. Mineta San Jose International (SJC) delay statistics
- Salt Lake City International (SLC) 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
- Why the first flight of the morning is statistically safest
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.