Flight Reliability
UA 5800 · United Airlines
San Francisco → RDD (SFO–RDD)90% of its flights flew this route. The rest (SCE–ORD, DEN–MSN) are included in these numbers.
- 79%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 5.7%
- Cancelled
- 6 min early
- Median arrival delay
Based on 247 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
UA 5800 departing between 6–9 PM arrived on time 89% of the time, versus 75% between 3–6 PM.
Friday is doing you no favors.
UA 5800 arrived on time 84% of the time on Wednesdays. On Fridays: 70%.
Keep a backup plan handy.
UA 5800 was cancelled 5.7% of the time. Typical for U.S. flights is around 1–2%.
Trending in the right direction.
UA 5800 arrived on time 77% of the time over the last three months in the data, compared with 69% in the three months before that.
The breakdown
- Mon81%(37 flights)
- Tue72%(25 flights)
- Wed84%(31 flights)
- Thu84%(37 flights)
- Fri70%(37 flights)
- Sat83%(29 flights)
- Sun78%(36 flights)
- 12–3 PM—(6 flights)
- 3–6 PM75%(165 flights)
- 6–9 PM89%(61 flights)
Jun 93% → May 79% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 87% | 30 |
| August 2025 | 77% | 30 |
| September 2025 | 64% | 22 |
| October 2025 | 55% | 11 |
| November 2025 | 88% | 24 |
| December 2025 | 65% | 23 |
| January 2026 | 82% | 17 |
| February 2026 | 71% | 21 |
| May 2026 | 79% | 14 |
- Departures on time
- 81%
- Diverted
- 0.4%
- Flights flown
- 232
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 247 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.