Flight number record
UA 1303
United Airlines · Denver to Eugene
- Route
- DEN → EUG
- Departs
- 19:35
- Flights
- 340
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1303, check with United Airlines.
UA 1303 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 340 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so UA 1303 runs 6 points behind the country as a whole. Across a thousand flights that is about 55 extra late arrivals.
Key figures
On time
71.8%
Arrivals under 15 minutes late, of 340 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
7.4%
National rate is 8.3%
These figures cover 340 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
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Schedule
When UA 1303 flies
UA 1303 flies DEN to EUG without a single fixed slot. Its most common scheduled departure was 19:35, used on 82 of 340 flights, with 19:45 (36 flights) and 19:13 (34 flights) next.
- Departs 19:3582 flights24.1%
- Departs 19:4536 flights10.6%
- Departs 19:1334 flights10.0%
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 19:35 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 1303 runs 4 points better at 71.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
UA 1303 next to DEN to EUG
Every carrier on DEN to EUG combined arrived on time 72.3% of the time across 1,271 flights, so UA 1303 is about level with it. United flew 728 flights on the same city pair under all its flight numbers, including this one, and those ran 71.4% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1303thin sample | 340 | 71.8% | 64 min | 0.00% | C+ |
| All United Airlines on DEN–EUG | 728 | 71.4% | 52 min | 0.14% | C+ |
| All carriers on DEN–EUG | 1,271 | 72.3% | 55 min | 0.24% | C+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1303 quarter by quarter
UA 1303 did not run the same all year. Its best quarter was Oct–Dec 2025 at 83.5% on time and its weakest Jul–Sep 2026 at 43.5%, a swing of 40 points on roughly 68 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 flights70.0%
- Oct–Dec 202591 flights83.5%
- Jan–Mar 202666 flights78.8%
- Apr–Jun 202691 flights74.7%
- Jul–Sep 202662 flights43.5%
Scale runs 35% to 90%.
By weekday, UA 1303 did best on Thursday at 78.7% on time and worst on Saturday at 64.6%. Each day rests on about 49 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1303 runs when it is late
The 96 late arrivals split 37 under half an hour, 34 between 30 and 60 minutes, and 25 an hour or more.
- 15+ min early48 flights14.1%
- Within 15 min196 flights57.6%
- 15–29 min late37 flights10.9%
- 30–59 min late34 flights10.0%
- 1–2 hours late9 flights2.6%
- 2+ hours late16 flights4.7%
Scale runs 0% to 100%.
Share of 340 completed flights by arrival against schedule.
24 of 104 late departures made up the time and arrived on time, 23% of them. 16 flights left on time and still arrived late.
The worst days
Worst days for UA 1303
The latest arrival of the period was on 19 December 2025, 12 hours 12 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 December 2025 | 12 hours 12 minutes | Carrier |
| 3 August 2026 | 4 hours 33 minutes | Late-arriving aircraft |
| 21 August 2026 | 3 hours 3 minutes | Late-arriving aircraft |
| 8 June 2026 | 2 hours 53 minutes | Late-arriving aircraft |
| 22 July 2026 | 2 hours 49 minutes | Late-arriving aircraft |
Delay causes
Why UA 1303 runs late
Late-arriving aircraft accounts for 60% of the 6,182 delay minutes carriers reported here, and the remaining four split what is left.
- 60%Late-arriving aircraft
- 29%Carrier
- 11%National Airspace System
60% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,182 reported delay minutes here, that single category outweighs weather by 60 to one. The split is drawn from 6,182 delay minutes reported on UA 1303.
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
7.4% 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.
The 996 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 DFW to DEN (102), TYS to DEN (36) and SLC to DEN (32), but none flew often enough under UA 1303 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to EUG only.
One caution: this is a thin sample. 340 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 1303
For a booking, read UA 1303 as 71.8% on time with 0.00% cancelled over 340 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to EUG, every carrier and departure
- EUG to DEN, the return direction
- United Airlines 318 on the same route71.1%
- Denver International (DEN) 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.