Flight number record
UA 1320
United Airlines · Denver to Santa Ana
- Route
- DEN → SNA
- Departs
- 11:30
- Flights
- 365
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1320, check with United Airlines.
UA 1320 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 40 minutes. That rests on 365 flights, with a median arrival 4 minutes early.
Set against the rest of the country, UA 1320's record is 8 points better than the US average of 77.6%. That gap is worth roughly 78 fewer late arrivals for every thousand flights.
Key figures
On time
85.4%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
38 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.81%
1 hour+ late
1.7%
National rate is 8.1%
These figures cover 365 flights between July 2025 and June 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.
Schedule
When UA 1320 flies
UA 1320 flies DEN to SNA without a single fixed slot. Its most common scheduled departure was 11:30, used on 97 of 365 flights, with 11:35 (80 flights) and 11:15 (68 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 11:3097 flights26.6%
- Departs 11:3580 flights21.9%
- Departs 11:1568 flights18.6%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 11:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 1320 runs 7 points better at 85.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 1320 next to DEN to SNA
Every carrier on DEN to SNA combined arrived on time 80.1% of the time across 3,696 flights, so UA 1320 is 5 points ahead of it. United flew 1,870 flights on the same city pair under all its flight numbers, including this one, and those ran 84.8% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1320 | 365 | 85.4% | 38 min | 0.27% | A+ |
| All United Airlines on DEN–SNA | 1,870 | 84.8% | 49 min | 0.32% | B+ |
| All carriers on DEN–SNA | 3,696 | 80.1% | 47 min | 0.35% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1320 quarter by quarter
Quarter by quarter UA 1320 held fairly steady: 82.2% in Jul–Sep 2025, 91.2% in Oct–Dec 2025, 86.7% in Jan–Mar 2026 and 81.3% in Apr–Jun 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 202592 flights82.2%
- Oct–Dec 202592 flights91.2%
- Jan–Mar 202690 flights86.7%
- Apr–Jun 202691 flights81.3%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1320 ranged from 80.8% on Sunday to 90.4% on Friday. With about 52 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why UA 1320 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 2,028 reported delay minutes.
- 41%National Airspace System
- 30%Carrier
- 28%Late-arriving aircraft
41% 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 840 minutes out of 2,028, against a national NAS share of 21%. The split is drawn from 2,028 delay minutes reported on UA 1320.
Cancellations are rare at 0.27%, below the national 1.81% 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 1.7% land an hour or more behind schedule, against 8.1% 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 846 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on seven other city pairs in the data, including TUL to DEN (38), RSW to DEN (37) and ORF to DEN (36), but none flew often enough under UA 1320 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to SNA only.
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 UA 1320
For a booking, UA 1320 has one of the better records a US domestic flight can show: 85.4% on time and 0.27% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- DEN to SNA, every carrier and departure
- SNA to DEN, the return direction
- United Airlines 2666 on the same route92.9%
- Frontier Airlines 4371 on the same route86.9%
- Denver International (DEN) delay statistics
- John Wayne Airport (SNA) delay statistics
- United Airlines on-time record
- Every United Airlines 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 United Airlines’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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.