Flight Reliability
UA 2288 · United Airlines
Raleigh–Durham → Denver (RDU–DEN)95% of its flights flew this route. The rest (ORD–PHL, IAD–CLE) are included in these numbers.
- 77%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 0.3%
- Cancelled
- 5 min early
- Median arrival delay
Based on 350 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
UA 2288 departing between 6–9 AM arrived on time 94% of the time, versus 77% between 3–6 PM.
Skip Thursday if you can.
UA 2288 arrived on time 83% of the time on Wednesdays. On Thursdays: 71%.
It basically never cancels.
Out of 350 scheduled flights, only 0.3% were cancelled.
Trending in the right direction.
UA 2288 arrived on time 94% of the time over the last three months in the data, compared with 83% in the three months before that.
The breakdown
- Mon77%(52 flights)
- Tue79%(47 flights)
- Wed83%(47 flights)
- Thu71%(49 flights)
- Fri73%(52 flights)
- Sat77%(48 flights)
- Sun82%(50 flights)
- 6–9 AM94%(18 flights)
- 3–6 PM77%(327 flights)
Jun 45% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 45% | 29 |
| July 2025 | 38% | 29 |
| August 2025 | 50% | 30 |
| September 2025 | 87% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 90% | 29 |
| December 2025 | 81% | 31 |
| January 2026 | 83% | 30 |
| February 2026 | 86% | 28 |
| March 2026 | 87% | 30 |
| April 2026 | 94% | 17 |
| May 2026 | 100% | 31 |
- Departures on time
- 80%
- Diverted
- 1.1%
- Flights flown
- 345
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 350 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.