Flight Reliability
UA 300 · United Airlines
San Francisco → Honolulu (SFO–HNL)99% of its flights flew this route. The rest (ATL–SFO) are included in these numbers.
89
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 0.5%
- Cancelled
- 9 min early
- Median arrival delay
Based on 368 historical flights. Data through May 2026.
What the data says
Saturday is the weak spot.
UA 300 arrived on time 88% of the time on Thursdays. On Saturdays: 77%.
A bit ahead of the United Airlines network.
UA 300 arrived on time 83% of the time, versus 79% across the United Airlines network.
Recent months have been rougher.
UA 300 arrived on time 77% of the time over the last three months in the data, compared with 89% in the three months before that.
The breakdown
- Mon81%(52 flights)
- Tue83%(54 flights)
- Wed87%(52 flights)
- Thu88%(51 flights)
- Fri85%(52 flights)
- Sat77%(52 flights)
- Sun81%(53 flights)
- 9 AM–12 PM—(3 flights)
- 12–3 PM83%(363 flights)
74%
May
Jun 80% → May 74% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 30 |
| July 2025 | 83% | 30 |
| August 2025 | 80% | 30 |
| September 2025 | 87% | 30 |
| October 2025 | 68% | 31 |
| November 2025 | 100% | 30 |
| December 2025 | 90% | 31 |
| January 2026 | 84% | 32 |
| February 2026 | 93% | 30 |
| March 2026 | 77% | 31 |
| April 2026 | 80% | 30 |
| May 2026 | 74% | 31 |
- Departures on time
- 78%
- Diverted
- 0%
- Flights flown
- 366
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 368 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.