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Flight Reliability

UA 2357 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2357 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

85%
Arrive within 15 minutes
1 min early
Average arrival delay
1.1%
Cancelled
10 min early
Median arrival delay

Based on 440 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(62 flights)
  • Tue87%(60 flights)
  • Wed88%(59 flights)
  • Thu91%(63 flights)
  • Fri75%(65 flights)
  • Sat87%(60 flights)
  • Sun86%(65 flights)
On-time by departure window
  • 6–9 AM90%(123 flights)
  • 9 AM–12 PM82%(185 flights)
  • 12–3 PM80%(51 flights)
  • 3–6 PM86%(57 flights)
  • 6–9 PM89%(18 flights)
On-time trend by month
81%
May

Jun 90% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202586%29
August 202581%31
September 202589%28
October 202585%20
November 202579%28
December 202571%31
January 202697%30
February 202689%27
March 202686%58
April 202687%60
May 202681%62
Departures on time
88%
Diverted
0.2%
Flights flown
434
Months covered
12

Keep nerding

Based on 440 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.