Carrier route record
UADEN→MFR
United Airlines · Denver to Medford
- Flights
- 574
- Period
- September 2025 to August 2026
- Share of route
- 79%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with United Airlines.
United on DEN to MFR lands a B+, level with the national rate of 77.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by roughly 55 minutes on average. That rests on 574 flights, with a median arrival 1 minute late.
The US average over the same twelve months is 77.3%, so there is little to separate United on DEN to MFR from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
76.8%
Arrivals under 15 minutes late, of 570 completed flights
Avg delay
53 min
Across delayed arrivals only, not all flights
Cancelled
0.35%
National rate is 1.89%
Whole route
77.1%
Every carrier on DEN to MFR, 730 flights
These figures cover 574 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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Carrier by carrier
United against every carrier on DEN to MFR
United flew 574 of the 730 flights on DEN to MFR, most of the route. Its 76.8% on time is about level with the route as a whole at 77.1%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from SkyWest at 77.9% to United at 76.8%. 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 | 156 | 77.9% | 57 min | 0.00% | B+ |
| United Airlines (this page) | 574 | 76.8% | 53 min | 0.35% | B+ |
Flight by flight
United flight numbers on DEN to MFR
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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 19 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am—
- 11am–2pm211 flights74.9%
- 2pm–5pm—
- 5pm–8pm331 flights76.5%
- 8pm–5am32 flights93.8%
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 74.9% on time against 93.8% for 8pm–5am. 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 5pm–8pm window is the busiest, with 331 flights scheduled in it.
Across the year
United on DEN to MFR through the year
June is the worst month at 43.3% on time, 53 points below January, the best at 96.7%. 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. May was the busiest month here, with 62 flights.
Across the week, Friday is the strongest day at 84.0% on time and Sunday the weakest at 70.7%, a spread of 13 points.
Arrival by arrival
How late United on DEN to MFR runs when it is late
The 132 late arrivals split 56 under half an hour, 50 between 30 and 60 minutes, and 26 an hour or more.
- 15+ min early82 flights14.4%
- Within 15 min356 flights62.5%
- 15–29 min late56 flights9.8%
- 30–59 min late50 flights8.8%
- 1–2 hours late14 flights2.5%
- 2+ hours late12 flights2.1%
Scale runs 0% to 100%.
Share of 570 completed flights by arrival against schedule.
30 of 111 late departures made up the time and arrived on time, 27% of them. In the other direction, 51 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 MFR.
The worst days
Worst days for United on DEN to MFR
The latest arrival of the period was on 8 June 2026, 6 hours 31 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 |
|---|---|---|
| 8 June 2026 | 6 hours 31 minutes | Carrier |
| 22 May 2026 | 4 hours 51 minutes | Late-arriving aircraft |
| 22 July 2026 | 3 hours 55 minutes | Late-arriving aircraft |
| 3 August 2026 | 3 hours 54 minutes | Late-arriving aircraft |
| 31 May 2026 | 3 hours 26 minutes | Late-arriving aircraft |
Delay causes
Why United runs late on this route
Late-arriving aircraft accounts for 54% of the 6,983 delay minutes carriers reported here, and the remaining four split what is left.
- 54%Late-arriving aircraft
- 23%Carrier
- 22%National Airspace System
- 1%Extreme weather
54% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,983 reported delay minutes here, that single category outweighs weather by 49 to one. The split is drawn from 6,983 reported delay minutes.
Cancellations are rare at 0.35%, 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
Badly late arrivals are rare here: only 4.6% 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 964 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 82.9% on time across 574 flights, 6 points above 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 6 points of difference.
One caution: this is a thin sample. 574 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 DEN to MFR
Put together: treat all of this as provisional. 574 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 76.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 570 completed flights over 12 months sit behind that.
Related
Where to go next
- DEN to MFR, every carrier
- United on MFR to DEN, the return leg
- SkyWest Airlines on DEN to MFR77.9%
- 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.