Carrier route record
UAEUG→DEN
United Airlines · Eugene to Denver
- Flights
- 728
- Period
- September 2025 to August 2026
- Share of route
- 57%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with United Airlines.
United on EUG to DEN lands a B+, 7 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 an hour and a half on average. That rests on 728 flights, with a median arrival 11 minutes early.
Set against the rest of the country, United's EUG to DEN record is 7 points better than the US average of 77.3%. That gap is worth roughly 66 fewer late arrivals for every thousand flights.
Key figures
On time
83.9%
Arrivals under 15 minutes late, of 713 completed flights
Avg delay
92 min
Across delayed arrivals only, not all flights
Cancelled
0.41%
National rate is 1.89%
Whole route
79.9%
Every carrier on EUG to DEN, 1,270 flights
These figures cover 728 flights between September 2025 and August 2026. The median arrival is 11 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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Carrier by carrier
United against every carrier on EUG to DEN
United flew 728 of the 1,270 flights on EUG to DEN, most of the route. Its 83.9% on time is 4 points better than the route as a whole, which runs 79.9%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from SkyWest at 87.0% to Southwest at 73.1%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlinesthin sample | 54 | 87.0% | 68 min | 0.00% | A+ |
| United Airlines (this page) | 728 | 83.9% | 92 min | 0.41% | B+ |
| Southwest Airlines | 488 | 73.1% | 59 min | 0.20% | C+ |
Flight by flight
United flight numbers on EUG to DEN
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Departure window
When United runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against half a point between the best and worst carrier.
- 5am–8am364 flights92.6%
- 8am–11am—
- 11am–2pm363 flights74.8%
- 2pm–5pm1 flights—
- 5pm–8pm—
- 8pm–5am—
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 74.8% on time against 92.6% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 5am–8am window is the busiest, with 364 flights scheduled in it.
Across the year
United on EUG to DEN through the year
August is the worst month at 70.7% on time, 24 points below March, the best at 95.1%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. January was the busiest month here, with 62 flights.
Across the week, Wednesday is the strongest day at 88.1% on time and Thursday the weakest at 74.8%, a spread of 13 points.
Arrival by arrival
How late United on EUG to DEN runs when it is late
United on EUG to DEN often beats the schedule: 286 of 713 completed flights, 40%, arrived 15 minutes or more early. The 115 late arrivals split 33 under half an hour, 33 between 30 and 60 minutes, and 49 an hour or more.
- 15+ min early286 flights40.1%
- Within 15 min312 flights43.8%
- 15–29 min late33 flights4.6%
- 30–59 min late33 flights4.6%
- 1–2 hours late25 flights3.5%
- 2+ hours late24 flights3.4%
Scale runs 0% to 100%.
Share of 713 completed flights by arrival against schedule.
18 of 119 late departures made up the time and arrived on time, 15% of them. Only 14 left on time and still arrived late.
The worst days
Worst days for United on EUG to DEN
The latest arrival of the period was on 16 April 2026, 19 hours 57 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 |
|---|---|---|
| 16 April 2026 | 19 hours 57 minutes | Carrier |
| 21 October 2025 | 10 hours 5 minutes | Late-arriving aircraft |
| 13 October 2025 | 8 hours 48 minutes | Late-arriving aircraft |
| 28 May 2026 | 5 hours 4 minutes | Late-arriving aircraft |
| 20 December 2025 | 4 hours 29 minutes | Late-arriving aircraft |
Delay causes
Why United runs late on this route
Late-arriving aircraft accounts for 44% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Late-arriving aircraft
- 36%Carrier
- 19%National Airspace System
- 1%Extreme weather
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 44 to one. The split is drawn from 10,551 reported delay minutes.
The largest share of delay minutes, 36%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,825 of the 11,000 delay minutes reported here.
Cancellations are rare at 0.41%, 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 stage length
What a delay here costs
6.9% 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 an hour and a half, 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 return leg is a different operation and performs like one: it runs 71.4% on time across 728 flights, 13 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 13 points of difference.
One caution: this is a thin sample. 728 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 United on EUG to DEN
Put together: treat all of this as provisional. 728 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 83.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 713 completed flights over 12 months sit behind that.
Related
Where to go next
- EUG to DEN, every carrier
- United on DEN to EUG, the return leg
- Southwest Airlines on EUG to DEN73.1%
- United Airlines network-wide record
- Denver International (DEN) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.