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Flight Reliability

UA 5647 · United Airlines

SBA → Los Angeles (SBA–LAX)80% of its flights flew this route. The rest (SAN–LAX, ORD–PIA) are included in these numbers.

91
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
2 min early
Average arrival delay
1.2%
Cancelled
10 min early
Median arrival delay

Based on 257 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

UA 5647 departing between 6–9 PM arrived on time 100% of the time, versus 87% between 12–3 PM.

Sunday scaries are real for this one.

UA 5647 arrived on time 96% of the time on Tuesdays. On Sundays: 83%.

Better than the United Airlines network average.

UA 5647 arrived on time 88% of the time, versus 79% across the United Airlines network.

Ticking up lately.

UA 5647 arrived on time 89% of the time over the last three months in the data, compared with 85% in the three months before that.

The breakdown

On-time by weekday
  • Mon86%(42 flights)
  • Tue96%(25 flights)
  • Wed87%(31 flights)
  • Thu88%(42 flights)
  • Fri93%(42 flights)
  • Sat88%(32 flights)
  • Sun83%(40 flights)
On-time by departure window
  • 6–9 AM—(6 flights)
  • 12–3 PM87%(37 flights)
  • 3–6 PM87%(170 flights)
  • 6–9 PM100%(33 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
87%
May

Jun 90% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202579%29
August 202584%31
September 202590%29
October 202595%21
December 202569%13
January 202691%22
February 202696%22
March 202696%22
April 202686%14
May 202687%15
Departures on time
89%
Diverted
0%
Flights flown
254
Months covered
12

Same route, other flights

Keep nerding

Based on 257 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.