Flight number record
UA 2258
United Airlines · Denver to Chicago
- Route
- DEN → ORD
- Departs
- 19:10
- Flights
- 274
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2258, check with United Airlines.
UA 2258 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 an hour and a half behind schedule. That rests on 274 flights, with a median arrival 6 minutes early.
The national on-time rate over the same period is 77.3%, so UA 2258 runs 6 points behind the country as a whole. Across a thousand flights that is about 61 extra late arrivals.
Key figures
On time
71.2%
Arrivals under 15 minutes late, of 264 completed flights
Avg delay
92 min
Across delayed arrivals only, not all flights
Cancelled
2.92%
National rate is 1.89%
1 hour+ late
12.1%
National rate is 8.3%
These figures cover 274 flights between September 2025 and August 2026. Beyond the headline rate, 12.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 2258 flies
UA 2258 flies DEN to ORD without a single fixed slot. Its most common scheduled departure was 19:10, used on 117 of 274 flights, with 19:21 (29 flights) next.
- Departs 19:10117 flights42.7%
- Departs 19:2129 flights10.6%
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 19:10 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 2258 runs 3 points better at 71.2%. 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 2258 next to DEN to ORD
Every carrier on DEN to ORD combined arrived on time 71.8% of the time across 6,109 flights, so UA 2258 is about level with it. United flew 3,885 flights on the same city pair under all its flight numbers, including this one, and those ran 71.9% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2258thin sample | 274 | 71.2% | 92 min | 2.92% | C |
| All United Airlines on DEN–ORD | 3,885 | 71.9% | 82 min | 0.82% | C+ |
| All carriers on DEN–ORD | 6,109 | 71.8% | 88 min | 1.11% | C |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2258 quarter by quarter
UA 2258 did not run the same all year. Its best quarter was Apr–Jun 2026 at 77.2% on time and its weakest Jul–Sep 2026 at 57.1%, a swing of 20 points on roughly 69 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 202526 flights—
- Oct–Dec 202565 flights70.8%
- Jan–Mar 202646 flights68.9%
- Apr–Jun 202682 flights77.2%
- Jul–Sep 202655 flights57.1%
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2258 did best on Wednesday at 77.1% on time and worst on Sunday at 64.1%. Each day rests on about 39 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2258 runs when it is late
UA 2258 often beats the schedule: 76 of 264 completed flights, 29%, arrived 15 minutes or more early. The 76 late arrivals split 24 under half an hour, 20 between 30 and 60 minutes, and 32 an hour or more.
- 15+ min early76 flights28.8%
- Within 15 min112 flights42.4%
- 15–29 min late24 flights9.1%
- 30–59 min late20 flights7.6%
- 1–2 hours late11 flights4.2%
- 2+ hours late21 flights8.0%
Scale runs 0% to 100%.
Share of 264 completed flights by arrival against schedule.
18 of 83 late departures made up the time and arrived on time, 22% of them. 11 flights left on time and still arrived late.
The worst days
Worst days for UA 2258
The latest arrival of the period was on 14 August 2026, 7 hours 52 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 |
|---|---|---|
| 14 August 2026 | 7 hours 52 minutes | Late-arriving aircraft |
| 29 November 2025 | 5 hours 33 minutes | National Airspace System |
| 6 March 2026 | 5 hours 1 minute | Late-arriving aircraft |
| 3 July 2026 | 4 hours 29 minutes | National Airspace System |
| 10 August 2026 | 4 hours 27 minutes | Late-arriving aircraft |
Delay causes
Why UA 2258 runs late
Late-arriving aircraft accounts for 49% of the 7,002 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Late-arriving aircraft
- 31%National Airspace System
- 20%Carrier
49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,002 reported delay minutes here, that single category outweighs weather by 49 to one. The split is drawn from 7,002 delay minutes reported on UA 2258.
Cancellations run at 2.92%, against 1.89% nationally. That is roughly one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
12.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 888 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 four other city pairs in the data, including BZN to DEN (180), SEA to DEN (37) and IAH to TPA (16), but none flew often enough under UA 2258 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to ORD only.
One caution: this is a thin sample. 274 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 2258
For a booking, the cancellation rate is the figure to plan around on UA 2258: 2.92% of its 274 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- DEN to ORD, every carrier and departure
- ORD to DEN, the return direction
- United Airlines 2865 on the same route79.2%
- United Airlines 2329 on the same route84.1%
- United Airlines 1023 on the same route59.8%
- United Airlines 617 on the same route68.8%
- United Airlines 1377 on the same route90.0%
- American Airlines 2771 on the same route87.9%
- Denver International (DEN) delay statistics
- Chicago O'Hare International (ORD) 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.