Flight Reliability
UA 5446 · United Airlines
San Francisco → SBP (SFO–SBP)85% of its flights flew this route. The rest (ORD–ABQ, ORD–DSM) are included in these numbers.
68
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 31 min
- Average arrival delay
- 1.5%
- Cancelled
- 5 min early
- Median arrival delay
Based on 329 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
UA 5446 departing between 9 PM–12 AM arrived on time 82% of the time, versus 57% between 6–9 PM.
Friday is doing you no favors.
UA 5446 arrived on time 91% of the time on Tuesdays and just 65% on Fridays. That gap is worth planning around.
The breakdown
- Mon69%(45 flights)
- Tue91%(45 flights)
- Wed85%(46 flights)
- Thu85%(47 flights)
- Fri65%(48 flights)
- Sat86%(43 flights)
- Sun71%(48 flights)
- 9 AM–12 PM82%(28 flights)
- 3–6 PM67%(21 flights)
- 6–9 PM57%(35 flights)
- 9 PM–12 AM82%(238 flights)
81%
May
Jun 83% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 29 |
| July 2025 | 87% | 30 |
| August 2025 | 75% | 20 |
| October 2025 | 70% | 30 |
| November 2025 | 59% | 29 |
| December 2025 | 78% | 27 |
| January 2026 | 83% | 30 |
| February 2026 | 85% | 27 |
| March 2026 | 90% | 31 |
| April 2026 | 73% | 30 |
| May 2026 | 81% | 31 |
- Departures on time
- 78%
- Diverted
- 0.6%
- Flights flown
- 322
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 329 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.