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Flight Reliability

UA 357 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 357 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
2 min
Average arrival delay
1.1%
Cancelled
10 min early
Median arrival delay

Based on 452 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(69 flights)
  • Tue95%(61 flights)
  • Wed87%(53 flights)
  • Thu81%(68 flights)
  • Fri81%(68 flights)
  • Sat81%(64 flights)
  • Sun84%(64 flights)
On-time by departure window
  • 6–9 AM89%(251 flights)
  • 9 AM–12 PM84%(113 flights)
  • 12–3 PM81%(41 flights)
  • 3–6 PM67%(30 flights)
  • 9 PM–12 AM67%(12 flights)
On-time trend by month
69%
May

Jun 88% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%58
July 202584%51
August 202580%51
September 202593%45
October 202596%23
November 202580%30
December 202581%31
January 202669%29
February 202693%28
March 202697%29
April 202693%30
May 202669%42
Departures on time
87%
Diverted
0%
Flights flown
447
Months covered
12

Keep nerding

Based on 452 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.