Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 327 · United Airlines

San Diego → Newark (SAN–EWR)93% of its flights flew this route. The rest (EWR–PBI, ORD–FAT) are included in these numbers.

75
Usually Fine
WanderNerd Reliability Score
80%
Arrive within 15 minutes
6 min
Average arrival delay
1.4%
Cancelled
11 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

UA 327 departing between 9 PM–12 AM arrived on time 97% of the time, versus 52% between 3–6 PM.

Sunday scaries are real for this one.

UA 327 arrived on time 90% of the time on Fridays and just 69% on Sundays. That gap is worth planning around.

A bit behind the SAN–EWR route.

UA 327 arrived on time 80% of the time, versus 84% across the SAN–EWR route.

Slipping a little lately.

UA 327 arrived on time 85% of the time over the last three months in the data, compared with 90% in the three months before that.

The breakdown

On-time by weekday
  • Mon71%(51 flights)
  • Tue86%(50 flights)
  • Wed80%(51 flights)
  • Thu80%(51 flights)
  • Fri90%(51 flights)
  • Sat80%(49 flights)
  • Sun69%(48 flights)
On-time by departure window
  • 6–9 AM86%(159 flights)
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM71%(130 flights)
  • 3–6 PM52%(23 flights)
  • 9 PM–12 AM97%(37 flights)
On-time trend by month
94%
May

Jun 83% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202572%25
August 202552%31
September 202585%26
October 202584%31
November 202557%30
December 202587%30
January 202687%30
February 202696%27
March 202670%30
April 202690%30
May 202694%31
Departures on time
82%
Diverted
1.7%
Flights flown
351
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.