Flight number record
UA 1320
United Airlines · Denver to Santa Ana
- Route
- DEN → SNA
- Departs
- 11:20
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 40 minutes. That rests on 365 flights, with a median arrival 5 minutes early.
Set against the rest of the country, UA 1320's record is 9 points better than the US average of 77.3%. That gap is worth roughly 87 fewer late arrivals for every thousand flights.
Key figures
On time
86.0%
Arrivals under 15 minutes late, of 364 completed flights
Avg delay
41 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
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 5 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 UA 1320 flies
UA 1320 flies DEN to SNA without a single fixed slot. Its most common scheduled departure was 11:20, used on 96 of 365 flights, with 11:35 (80 flights) and 11:30 (55 flights) next.
- Departs 11:2096 flights26.3%
- Departs 11:3580 flights21.9%
- Departs 11:3055 flights15.1%
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 11:20 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 1320 runs 8 points better at 86.0%. 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
UA 1320 next to DEN to SNA
Every carrier on DEN to SNA combined arrived on time 80.6% of the time across 3,710 flights, so UA 1320 is 5 points ahead of it. United flew 1,901 flights on the same city pair under all its flight numbers, including this one, and those ran 85.3% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1320 | 365 | 86.0% | 41 min | 0.00% | A+ |
| All United Airlines on DEN–SNA | 1,901 | 85.3% | 48 min | 0.16% | A+ |
| All carriers on DEN–SNA | 3,710 | 80.6% | 45 min | 0.16% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1320 quarter by quarter
Quarter by quarter UA 1320 held fairly steady: 86.7% in Jul–Sep 2025, 91.2% in Oct–Dec 2025, 86.7% in Jan–Mar 2026, 81.3% in Apr–Jun 2026 and 83.9% in Jul–Sep 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 202530 flights86.7%
- Oct–Dec 202592 flights91.2%
- Jan–Mar 202690 flights86.7%
- Apr–Jun 202691 flights81.3%
- Jul–Sep 202662 flights83.9%
Scale runs 75% to 95%.
By weekday, UA 1320 ranged from 80.8% on Sunday to 90.2% on Saturday. With about 52 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late UA 1320 runs when it is late
Most of the lateness is short. 28 of the 51 late arrivals were under half an hour behind, and 8 reached an hour or more.
- 15+ min early80 flights22.0%
- Within 15 min233 flights64.0%
- 15–29 min late28 flights7.7%
- 30–59 min late15 flights4.1%
- 1–2 hours late5 flights1.4%
- 2+ hours late3 flights0.8%
Scale runs 0% to 100%.
Share of 364 completed flights by arrival against schedule.
7 of 29 late departures made up the time and arrived on time, 24% of them. In the other direction, 29 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 SNA.
The worst days
Worst days for UA 1320
The latest arrival of the period was on 23 November 2025, 3 hours 15 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 November 2025 | 3 hours 15 minutes | Late-arriving aircraft |
| 19 January 2026 | 2 hours 12 minutes | Late-arriving aircraft |
| 6 March 2026 | 2 hours 7 minutes | National Airspace System |
| 30 May 2026 | 1 hour 47 minutes | National Airspace System |
| 10 July 2026 | 1 hour 45 minutes | Late-arriving aircraft |
Delay causes
Why UA 1320 runs late
National Airspace System accounts for 44% of the 2,065 delay minutes carriers reported here, and the remaining four split what is left.
- 44%National Airspace System
- 34%Late-arriving aircraft
- 23%Carrier
44% 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 899 minutes out of 2,065, against a national NAS share of 21%. The split is drawn from 2,065 delay minutes reported on UA 1320.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are 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 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 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.
The same number turns up on eight other city pairs in the data, including SYR to DEN (41), 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: 86.0% on time and 0.00% 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 route94.7%
- 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
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.