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Flight Reliability

UA 1253 · United Airlines

Newark → West Palm Beach (EWR–PBI)81% of its flights flew this route. The rest (DEN–MKE, ORD–LAX) are included in these numbers.

89
Pretty Reliable
WanderNerd Reliability Score
89%
Arrive within 15 minutes
7 min early
Average arrival delay
1.4%
Cancelled
15 min early
Median arrival delay

Based on 355 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 1253 departing between 9 AM–12 PM arrived on time 92% of the time, versus 82% between 9 PM–12 AM.

Friday is doing you no favors.

UA 1253 arrived on time 98% of the time on Wednesdays. On Fridays: 84%.

Better than the EWR–PBI route average.

UA 1253 arrived on time 89% of the time, versus 77% across the EWR–PBI route.

Better than the United Airlines network average.

UA 1253 arrived on time 89% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon84%(51 flights)
  • Tue89%(47 flights)
  • Wed98%(50 flights)
  • Thu90%(52 flights)
  • Fri84%(51 flights)
  • Sat91%(46 flights)
  • Sun86%(51 flights)
On-time by departure window
  • 6–9 AM89%(303 flights)
  • 9 AM–12 PM92%(13 flights)
  • 3–6 PM86%(21 flights)
  • 9 PM–12 AM82%(11 flights)
On-time trend by month
94%
May

Jun 96% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%26
July 202593%29
August 202590%30
September 202593%29
October 202569%26
November 202577%30
December 202583%30
January 202697%29
February 202689%27
March 202694%31
April 202693%30
May 202694%31
Departures on time
93%
Diverted
0.6%
Flights flown
348
Months covered
12

Same route, other flights

Keep nerding

Based on 355 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.