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Flight Reliability

UA 1827 · United Airlines

San Diego → Newark (SAN–EWR)

89
Pretty Reliable
WanderNerd Reliability Score
92%
Arrive within 15 minutes
5 min early
Average arrival delay
2.5%
Cancelled
15 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

UA 1827 departing between 9 PM–12 AM arrived on time 95% of the time, versus 78% between 6–9 AM.

Skip Thursday if you can.

UA 1827 arrived on time 98% of the time on Saturdays. On Thursdays: 87%.

Better than the SAN–EWR route average.

UA 1827 arrived on time 92% of the time, versus 84% across the SAN–EWR route.

Better than the United Airlines network average.

UA 1827 arrived on time 92% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon92%(49 flights)
  • Tue96%(52 flights)
  • Wed96%(48 flights)
  • Thu87%(52 flights)
  • Fri90%(52 flights)
  • Sat98%(50 flights)
  • Sun88%(51 flights)
On-time by departure window
  • 6–9 AM78%(60 flights)
  • 9 PM–12 AM95%(294 flights)
On-time trend by month
97%
May

Jun 97% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202594%31
August 2025100%29
September 202593%29
October 202597%31
November 202586%29
December 202583%30
January 202693%29
February 202696%26
March 202673%30
April 2026100%30
May 202697%30
Departures on time
90%
Diverted
0.3%
Flights flown
354
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.