Flight number record
DL 2022
Delta Air Lines · Salt Lake City to Philadelphia
- Route
- SLC → PHL
- Departs
- 11:25
- Flights
- 322
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2022, check with Delta Air Lines.
DL 2022 lands a B+, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 322 flights, with a median arrival 6 minutes early.
Set against the rest of the country, DL 2022's record is 6 points better than the US average of 77.3%. That gap is worth roughly 64 fewer late arrivals for every thousand flights.
Key figures
On time
83.7%
Arrivals under 15 minutes late, of 319 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
0.31%
National rate is 1.89%
1 hour+ late
6.0%
National rate is 8.3%
These figures cover 322 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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Schedule
When DL 2022 flies
DL 2022 flies SLC to PHL without a single fixed slot. Its most common scheduled departure was 11:25, used on 64 of 322 flights, with 11:20 (50 flights) and 11:30 (41 flights) next.
- Departs 11:2564 flights19.9%
- Departs 11:2050 flights15.5%
- Departs 11:3041 flights12.7%
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 11:25 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 2022 runs 5 points better at 83.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 2022 next to SLC to PHL
Every carrier on SLC to PHL combined arrived on time 83.8% of the time across 805 flights, so DL 2022 is about level with it. Delta flew 591 flights on the same city pair under all its flight numbers, including this one, and those ran 82.8% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2022thin sample | 322 | 83.7% | 62 min | 0.31% | B+ |
| All Delta Air Lines on SLC–PHL | 591 | 82.8% | 55 min | 1.02% | B |
| All carriers on SLC–PHL | 805 | 83.8% | 87 min | 1.99% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2022 quarter by quarter
DL 2022 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Jul–Sep 2026 at 71.7%, a swing of 25 points on roughly 64 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 flights96.7%
- Oct–Dec 202588 flights84.1%
- Jan–Mar 202651 flights82.0%
- Apr–Jun 202691 flights87.9%
- Jul–Sep 202662 flights71.7%
Scale runs 65% to 100%.
By weekday, DL 2022 did best on Wednesday at 91.1% on time and worst on Monday at 75.0%. Each day rests on about 46 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2022 runs when it is late
DL 2022 often beats the schedule: 89 of 319 completed flights, 28%, arrived 15 minutes or more early. The 52 late arrivals split 17 under half an hour, 16 between 30 and 60 minutes, and 19 an hour or more.
- 15+ min early89 flights27.9%
- Within 15 min178 flights55.8%
- 15–29 min late17 flights5.3%
- 30–59 min late16 flights5.0%
- 1–2 hours late13 flights4.1%
- 2+ hours late6 flights1.9%
Scale runs 0% to 100%.
Share of 319 completed flights by arrival against schedule.
9 of 49 late departures made up the time and arrived on time, 18% of them. 12 flights left on time and still arrived late.
The worst days
Worst days for DL 2022
The latest arrival of the period was on 15 November 2025, 3 hours 39 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across November, July, January and October, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 15 November 2025 | 3 hours 39 minutes | Late-arriving aircraft |
| 21 July 2026 | 3 hours 37 minutes | National Airspace System |
| 18 July 2026 | 2 hours 55 minutes | Carrier |
| 4 January 2026 | 2 hours 53 minutes | Carrier |
| 17 October 2025 | 2 hours 45 minutes | Late-arriving aircraft |
Delay causes
Why DL 2022 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 3,208 reported delay minutes.
- 42%National Airspace System
- 33%Carrier
- 23%Late-arriving aircraft
- 2%Extreme weather
42% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,340 minutes out of 3,208, against a national NAS share of 21%. The split is drawn from 3,208 delay minutes reported on DL 2022.
Cancellations are rare at 0.31%, 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
6.0% 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 about an hour, which a normal layover absorbs.
At 1,927 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 same number turns up on three other city pairs in the data, including PHL to SLC (146), ATL to PBI (24) and PBI to ATL (24), but none flew often enough under DL 2022 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SLC to PHL only.
One caution: this is a thin sample. 322 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 2022
For a booking, read DL 2022 as 83.7% on time with 0.31% cancelled over 322 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SLC to PHL, every carrier and departure
- PHL to SLC, the return direction
- Salt Lake City International (SLC) delay statistics
- Philadelphia International (PHL) 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.