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Flight Reliability

UA 5430 · United Airlines

Los Angeles → Sacramento (LAX–SMF)81% of its flights flew this route. The rest (AVP–ORD, ORD–MKE) are included in these numbers.

82
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
15 min
Average arrival delay
1.7%
Cancelled
10 min early
Median arrival delay

Based on 286 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

UA 5430 departing between 6–9 PM arrived on time 88% of the time, versus 67% between 12–3 PM.

Mondays have been rough.

UA 5430 arrived on time 94% of the time on Tuesdays and just 79% on Mondays. That gap is worth planning around.

A bit ahead of the United Airlines network.

UA 5430 arrived on time 85% of the time, versus 79% across the United Airlines network.

Recent months have been rougher.

UA 5430 arrived on time 68% of the time over the last three months in the data, compared with 86% in the three months before that.

The breakdown

On-time by weekday
  • Mon79%(48 flights)
  • Tue94%(35 flights)
  • Wed90%(38 flights)
  • Thu82%(44 flights)
  • Fri82%(38 flights)
  • Sat89%(36 flights)
  • Sun83%(41 flights)
On-time by departure window
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM67%(15 flights)
  • 3–6 PM77%(17 flights)
  • 6–9 PM88%(189 flights)
  • 9 PM–12 AM81%(58 flights)
On-time trend by month
70%
May

Jun 92% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%26
July 202586%29
August 202592%24
September 202590%29
October 202593%27
November 2025100%16
December 202581%31
January 202678%23
February 2026100%17
March 202677%17
April 202657%14
May 202670%27
Departures on time
85%
Diverted
0.3%
Flights flown
280
Months covered
12

Same route, other flights

Keep nerding

Based on 286 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.