Flight number record
UA 2087
United Airlines · Denver to Washington
- Route
- DEN → IAD
- Departs
- 10:20
- Flights
- 341
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2087, check with United Airlines.
UA 2087 lands a B+, 4 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 341 flights, with a median arrival 5 minutes early.
Set against the rest of the country, UA 2087's record is 4 points better than the US average of 77.3%. That gap is worth roughly 41 fewer late arrivals for every thousand flights.
Key figures
On time
81.4%
Arrivals under 15 minutes late, of 338 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.88%
National rate is 1.89%
1 hour+ late
6.8%
National rate is 8.3%
These figures cover 341 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When UA 2087 flies
UA 2087 flies DEN to IAD without a single fixed slot. Its most common scheduled departure was 10:20, used on 161 of 341 flights, with 10:15 (51 flights) and 09:50 (37 flights) next.
- Departs 10:20161 flights47.2%
- Departs 10:1551 flights15.0%
- Departs 09:5037 flights10.9%
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 10:20 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and UA 2087 runs 3 points worse at 81.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
UA 2087 next to DEN to IAD
Every carrier on DEN to IAD combined arrived on time 81.8% of the time across 3,385 flights, so UA 2087 is about level with it. United flew 2,790 flights on the same city pair under all its flight numbers, including this one, and those ran 84.8% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2087thin sample | 341 | 81.4% | 61 min | 0.88% | B+ |
| All United Airlines on DEN–IAD | 2,790 | 84.8% | 66 min | 0.50% | B+ |
| All carriers on DEN–IAD | 3,385 | 81.8% | 60 min | 0.59% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2087 quarter by quarter
Quarter by quarter UA 2087 held fairly steady: 80.0% in Jul–Sep 2025, 86.8% in Oct–Dec 2025, 76.9% in Jan–Mar 2026, 82.4% in Apr–Jun 2026 and 77.0% 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 flights80.0%
- Oct–Dec 202592 flights86.8%
- Jan–Mar 202666 flights76.9%
- Apr–Jun 202691 flights82.4%
- Jul–Sep 202662 flights77.0%
Scale runs 70% to 90%.
By weekday, UA 2087 did best on Tuesday at 87.8% on time and worst on Saturday at 68.1%. Each day rests on about 49 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2087 runs when it is late
The 63 late arrivals split 25 under half an hour, 15 between 30 and 60 minutes, and 23 an hour or more.
- 15+ min early79 flights23.4%
- Within 15 min196 flights58.0%
- 15–29 min late25 flights7.4%
- 30–59 min late15 flights4.4%
- 1–2 hours late15 flights4.4%
- 2+ hours late8 flights2.4%
Scale runs 0% to 100%.
Share of 338 completed flights by arrival against schedule.
13 of 58 late departures made up the time and arrived on time, 22% of them. In the other direction, 18 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 IAD.
The worst days
Worst days for UA 2087
The latest arrival of the period was on 26 December 2025, 4 hours 40 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 December 2025 | 4 hours 40 minutes | Late-arriving aircraft |
| 30 March 2026 | 3 hours 35 minutes | Late-arriving aircraft |
| 19 June 2026 | 3 hours 13 minutes | Late-arriving aircraft |
| 11 May 2026 | 3 hours 9 minutes | Carrier |
| 3 May 2026 | 2 hours 59 minutes | Late-arriving aircraft |
Delay causes
Why UA 2087 runs late
Late-arriving aircraft accounts for 48% of the 3,830 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Late-arriving aircraft
- 36%Carrier
- 16%National Airspace System
48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,830 reported delay minutes here, that single category outweighs weather by 48 to one. The split is drawn from 3,830 delay minutes reported on UA 2087.
Cancellations are rare at 0.88%, 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 routes
What a delay on this flight costs
6.8% 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 1,452 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 one other city pair in the data, including ORD to EWR (24), but none flew often enough under UA 2087 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to IAD only.
One caution: this is a thin sample. 341 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 2087
For a booking, read UA 2087 as 81.4% on time with 0.88% cancelled over 341 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to IAD, every carrier and departure
- IAD to DEN, the return direction
- United Airlines 2408 on the same route71.6%
- United Airlines 1924 on the same route93.8%
- United Airlines 347 on the same route87.0%
- United Airlines 1101 on the same route93.8%
- Denver International (DEN) delay statistics
- Washington Dulles International (IAD) 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.